Sensing device and storage container

Abstract

The embodiment of the invention provides a sensing device and a storage container, and the sensing device comprises a housing (10 ') which is internally provided with an air inlet channel (13), and the air inlet channel (13) is provided with an air inlet (131); the shell (10 ') is provided with an air inlet channel (13), the temperature sensor (14) is at least partially arranged in the shell (10') and configured to detect temperature, the air pressure sensor (15) is at least partially arranged in the shell (10 '), an air pressure sensing part (151) of the air pressure sensor (15) is communicated with the air inlet channel (13) and configured to detect air pressure, and the air inlet channel (13) surrounds the periphery of the temperature sensor (14).

Description

Technical Field

[0001] The present application relates to a sensor device and a storage container. Background Art

[0002] For storage containers that store media, in order to keep the media in a suitable storage state, it is necessary to measure both the temperature of the media and the air pressure in the storage container. For example, most battery cells are filled with electrolyte in their shells, and during the charge and discharge process of the battery cells, the positive and negative active materials react with the electrolyte. Before the electrolyte is filled, the electrolyte is stored in a storage tank.

[0003] In order to simultaneously measure the temperature of the medium and the air pressure in the storage container, a temperature sensor and an air pressure sensor are required. In order to save space, an integrated temperature and air pressure sensor can be used, but this sensor is difficult to apply to occasions where a small aperture is installed on the storage container. Summary of the invention

[0004] The purpose of the present application is to enable the sensor device to be suitable for installation in occasions with a smaller aperture.

[0005] According to a first aspect of the present application, a sensing device is provided, comprising:

[0006] A housing, wherein an air inlet passage is provided therein, and the air inlet passage has an air inlet port;

[0007] a temperature sensor disposed at least partially within the housing and configured to detect a temperature; and

[0008] an air pressure sensor, at least partially disposed in the housing, an air pressure sensing portion of the air pressure sensor being in communication with the air intake passage and configured to detect air pressure;

[0009] The air intake passage surrounds the outer periphery of the temperature sensor.

[0010] This embodiment is directed to an integrated temperature and air pressure sensing device, in which the air intake channel surrounds the periphery of the temperature sensor. Compared with a structure in which the temperature sensor and the air intake channel are arranged side by side, the air intake channel can be fully utilized to set up the space around the temperature sensor to achieve air intake, so that the air pressure sensor can detect air pressure. The position of the air intake channel is used to achieve the installation of the sensing device. This structure not only makes the structure of the installation part of the sensing device more compact, but also reduces the maximum radial dimension of the air intake channel when the air intake volume is constant, thereby reducing the diameter of the installation part of the sensing device. Even in order to ensure the detection reliability of the temperature sensor, when the temperature sensor is longer and the diameter is increased, it is easy to meet the installation requirements of a smaller aperture, thereby improving the adaptability of the sensing device to the aperture when installing.

[0011] In some embodiments, the temperature sensor is cylindrical and is coaxially disposed with the intake passage.

[0012] This embodiment arranges the temperature sensor and the air intake passage coaxially, so that the radial width of the air intake passage at different circumferential positions can be relatively uniform, and the diameter of the installation part of the sensor device can be further reduced, making it easier to meet the installation requirements of smaller apertures. Moreover, the uniform air intake through the air intake passage can stabilize the air flow in the housing, and the pressure acting on the air pressure sensing part is also relatively stable, which can improve the air pressure detection accuracy and the accuracy of the air pressure detection results.

[0013] In some embodiments, a temperature sensing portion of the temperature sensor extends out of the housing through the air inlet.

[0014] This embodiment facilitates direct contact between the temperature sensing portion and the liquid medium when the liquid medium is stored in the container body, thereby more accurately detecting the temperature of the liquid medium.

[0015] In some embodiments, the length section of the shell near the air inlet is cylindrical and has an external thread, and the external thread forms a mounting interface of the sensor device.

[0016] This embodiment provides an external thread on the shell as an installation interface, which has a simple structure, is easy to process, is convenient for assembly and disassembly, and is convenient for fine-tuning the installation height of the sensor device after installation, so as to adjust the height position of the temperature sensing part according to the detection needs. Moreover, the external thread is provided at a position of the shell near the air inlet, which is conducive to avoiding the protruding structure on the installation surface of the container body after installation.

[0017] In some embodiments, the sensing device further includes a supporting structure, wherein the supporting structure is abutted between the housing and the temperature sensor.

[0018] This embodiment can provide auxiliary support for the temperature sensor by setting a supporting structure, increase the connection strength between the temperature sensor and the shell, prevent the cantilever length section of the temperature sensor from shaking, ensure the reliability of the temperature sensor, and improve the detection accuracy.

[0019] In some embodiments, the support structure includes a plurality of support members, the plurality of support members are arranged at intervals along the circumference of the temperature sensor, and at least a portion of the air intake channel is formed between adjacent support members.

[0020] This embodiment arranges a plurality of support members at circumferential intervals on the temperature sensor, and forms at least a portion of the air intake passage between adjacent support members. This can not only provide stable and uniform auxiliary support for the temperature sensor, but also fully utilize the peripheral space of the temperature sensor to form an air intake passage so that the gas can be transmitted to the air pressure sensor to realize air pressure detection.

[0021] In some embodiments, at least two support structures are provided, and the at least two support structures are spaced apart along the extension direction of the air inlet passage.

[0022] This embodiment can provide multi-point support in the length direction of the temperature sensor by arranging at least two support structures at intervals in the extension direction of the air intake passage, which can further improve the installation stability of the temperature sensor, thereby improving the structural reliability of the entire sensor device and the accuracy of the detection results.

[0023] In some embodiments, the support structure is located in a region of the air inlet passage close to the air inlet port.

[0024] This embodiment arranges the support structure in the area of ​​the air inlet passage close to the air inlet, which can increase the support span of the temperature sensor. In particular, for the structure in which the temperature sensing part extends out of the shell, the length of the cantilever end of the temperature sensor can be further reduced, thereby improving the support stability of the temperature sensor.

[0025] In some embodiments, the shell includes a first part, the first part is used to form an air inlet channel, the first part includes a first section and a second section, the first section and the second section are split structures, the second section forms an air inlet, and the first section is connected to an end of the second section away from the air inlet, and the support structure is arranged in the second section.

[0026] This embodiment takes into account that the first part is a slender cylindrical structure, designs the first part as a segmented structure, and arranges the supporting structure in the second segment. Since the second segment is shorter, especially when multiple supporting structures are arranged, the supporting structure can be conveniently fixed in the second segment, thereby reducing the process difficulty and improving the positioning accuracy of the supporting structure.

[0027] In some embodiments, the shell also includes a first part and a second part, the first part is used to form an air intake passage, the second part is connected to a side of the first part away from the air intake port, a fixing seat is provided in the second part, a first through hole and a mounting groove are provided side by side in the fixing seat, the temperature sensor passes through the first through hole and extends in the air intake passage, the air pressure sensor is provided in the mounting groove, and the mounting groove is connected to the air intake passage.

[0028] This embodiment can conveniently realize the installation and fixation of the temperature sensor and the air pressure sensor, and the assembly process is relatively simple. The installation groove is connected with the air intake passage, so that the intake air can smoothly reach the air pressure sensing part of the air pressure sensor to realize air pressure detection.

[0029] In some embodiments, the mounting groove is opened on the surface of the fixing seat away from the first part, a second through hole is provided on the bottom surface of the mounting groove, and the end surfaces connecting the fixing seat, the second part and the first part are spaced apart to form an air guide channel, and the mounting groove is connected to the air intake channel through the second through hole and the air guide channel.

[0030] By providing the second through hole and the air guide channel, the embodiment allows the gas to enter the shell through the air inlet channel and then pass through the air guide channel and the second through hole in sequence to smoothly reach the air pressure sensing part, thereby improving the accuracy of air pressure detection.

[0031] In some embodiments, the sensing device further includes a sealing member disposed between the air pressure sensor and the mounting groove.

[0032] This embodiment can achieve sealing of the air pressure sensor by providing a seal, prevent gas leakage from the gap between the air pressure sensor and the mounting groove, and improve the accuracy of air pressure detection; and when the stored medium is gas or volatile liquid, it can prevent the medium from escaping.

[0033] In some embodiments, the temperature sensor is welded to the first through hole at least at its outer end in the entire circumference; and / or the air pressure sensor is welded to the mounting groove at least at its outer end in the entire circumference.

[0034] This embodiment is welded at the outer end of the temperature sensor or the air pressure sensor, which is convenient for welding and can reduce the process difficulty. In addition, by welding the entire circumference of the temperature sensor or the air pressure sensor, the installation gap can be filled by the weld to prevent gas leakage and play a sealing role. If the entire circumference is welded and a sealing member is provided, double sealing can be achieved to improve the sealing effect and reliability.

[0035] In some embodiments, the sensing device also includes a circuit board, which is arranged on a side of the temperature sensor and the air pressure sensor away from the air intake passage; the air pressure sensor is located on the side of the temperature sensor, and the first electrical lead of the temperature sensor and the second electrical lead of the air pressure sensor are both led out toward one end close to the circuit board and are electrically connected to the circuit board.

[0036] This embodiment arranges the circuit board on the side of the temperature sensor and the air pressure sensor away from the air inlet passage. When the humidity in the gas is high, the gas can be prevented from reaching the circuit board, the first electrical lead-out part and the second electrical lead-out part to affect their working reliability and prevent the detection function from failing. Moreover, when the medium is corrosive, the gas can be prevented from reaching the circuit board, the first electrical lead-out part and the second electrical lead-out part to cause corrosion, thereby increasing the service life of the sensor device. In addition, this structure facilitates the installation of the circuit board from the opening of the housing away from the air inlet passage, and the electrical connection between the first electrical lead-out part and the second electrical lead-out part and the circuit board.

[0037] In some embodiments, the temperature sensor and the air pressure sensor are flush with one end of the circuit board.

[0038] This embodiment makes the temperature sensor and the air pressure sensor flush with one end of the circuit board, so that the first electrical lead-out portion and the second electrical lead-out portion can extend to the same length when connected to the circuit board, and it is also convenient to achieve electrical connection with the circuit board; moreover, when the outer end surfaces of the temperature sensor and the air pressure sensor exceed the installation surface, the temperature sensor and the air pressure sensor can jointly provide support for the circuit board, thereby improving the installation stability of the circuit board.

[0039] In some embodiments, both the temperature sensor and the air pressure sensor have metal packages.

[0040] This embodiment can protect the internal structure by metal packaging of the sensor, improve the corrosion resistance, and increase the working reliability and service life of the sensor.

[0041] According to a second aspect of the present application, a storage container is provided, comprising:

[0042] A container body configured to store a medium; and

[0043] The sensor device of the above embodiment is installed on the container body.

[0044] Since this integrated temperature and pressure sensing device surrounds the air inlet channel around the outer periphery of the temperature sensor, the diameter of the sensor installation portion can be reduced. Therefore, when the installation hole diameter on the container body is small, it is also conducive to meeting the installation requirements to measure the temperature and pressure of the medium stored in the container body.

[0045] In some embodiments, a third through hole is provided on the container body, and one end of the shell close to the temperature sensor is installed in the third through hole.

[0046] In this embodiment, the installation interface of the sensor device is arranged at one end of the shell body close to the temperature sensor, so that after installation, there is still a spacing distance between the installation surface of the container body and the second part with a larger cross-sectional area. When there are structures such as protrusions or slopes on the installation surface, they can also be avoided, thereby improving the adaptability of the sensor device to installation surfaces of different shapes.

[0047] In some embodiments, the third through hole is a threaded hole, and an end of the shell close to the air inlet is provided with an external thread that matches the threaded hole.

[0048] This embodiment provides an external thread on the shell as an installation interface, which has a simple structure, is easy to process, is convenient for assembly and disassembly, and is convenient for fine-tuning the installation height of the sensor device after installation, so as to adjust the height position of the temperature sensing part according to the detection needs. Moreover, the external thread is provided at a position of the shell near the air inlet, which is conducive to avoiding the protruding structure on the installation surface of the container body after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0050] Figure 1Schematic diagram of the structure of some embodiments of the storage container of the present application.

[0051] Figure 2 Schematic diagram of the structure of some embodiments of the sensor device of the present application.

[0052] Figure 3 for Figure 2 Schematic diagram of the structure of some embodiments of the support structure.

[0053] In the drawings, the drawings are not drawn to scale.

[0054] Marking Description:

[0055] 100, storage container; 10, sensor device; 20, container body; 201, third through hole;

[0056] 10', shell; 11, first part; 111, first section; 112, second section; 113, external thread; 12, second part; 13, air inlet channel; 131, air inlet; 14, temperature sensor; 141, temperature sensing part; 142, first electrical lead-out part; 15, air pressure sensor; 151, air pressure sensing part; 152, second electrical lead-out part; 16, supporting structure; 161, supporting member; 17, sealing member; 18, fixing seat; 181, first through hole; 182, mounting groove; 183, second through hole; 184, air guide channel; 19, circuit board. DETAILED DESCRIPTION

[0057] The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0058] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0059] The present application uses descriptions such as "upper", "lower", "top", "bottom", "front", "back", "inside" and "outside" to indicate directions or positional relationships. This is only for the convenience of describing the present application, and does not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as limiting the scope of protection of the present application.

[0060] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. "Vertical" is not strictly perpendicular, but within the tolerance range. "Parallel" is not strictly parallel, but within the tolerance range. The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the present application.

[0061] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0062] Reference to "embodiments" herein means that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least some embodiments of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0063] Current battery cells usually include a shell and an electrode assembly contained in the shell, and the shell is filled with electrolyte. The electrode assembly is mainly formed by stacking or winding a first pole piece and a second pole piece with opposite polarities, and an insulating member, such as a diaphragm, is usually provided between the first pole piece and the second pole piece. The portion of the first pole piece and the second pole piece coated with active material constitutes the main body of the electrode assembly, and the portion of the first pole piece and the second pole piece not coated with active material each constitutes a first pole ear and a second pole ear. In a battery cell, the first pole piece can be a positive pole piece, including a positive current collector and a positive active material layer provided on both sides of the positive current collector, and the positive current collector can be a metal foil or a composite current collector. For example, as a metal foil, aluminum or stainless steel, stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium with silver surface treatment can be used. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector can be formed by forming a metal material (aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.). The positive electrode active material layer may include at least one of the following materials: lithium-containing phosphates, lithium transition metal oxides and their respective modified compounds. However, the present application is not limited to these materials, and other traditional materials that can be used as positive electrode active materials for batteries can also be used. These positive electrode active materials can be used alone or in combination of two or more. The second pole piece can be a negative pole piece, including a negative current collector and a negative active material layer provided on both sides of the negative current collector, and the negative current collector can be a metal foil or a composite current collector. For example, as a metal foil, aluminum or stainless steel, stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium, etc. treated with silver surface can be used. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector can be formed by forming a metal material (copper, copper alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.). The negative electrode active material layer can adopt a negative electrode active material for batteries known in the art. As an example, the negative electrode active material may include at least one of the following materials: artificial graphite, natural graphite, soft carbon, hard carbon, silicon-based materials, tin-based materials and lithium titanate, etc. Optionally, the first pole piece can also be a negative pole piece, and the second pole piece is a positive pole piece accordingly. During the charge and discharge process of the battery cell, the positive electrode active material and the negative electrode active material react with the electrolyte, and the pole ears connect the electrode terminals to form a current loop.

[0064] Before the electrolyte is filled, the electrolyte is stored in a storage tank. The related technology uses an integrated temperature and pressure sensor. The main reason why this sensor is difficult to apply to small-aperture installation is that the air inlet and the temperature sensor are arranged side by side in structure and separated from each other, making the outer diameter of the entire sensor larger at the installation site; and in order to ensure the reliability of the temperature sensor probe, the diameter of the temperature sensor needs to consider the length factor. The larger the length, the larger the diameter. Therefore, in the case of a small installation aperture, for example, the installation aperture is less than 10mm, and the temperature measurement depth is greater than 0.5m, the current integrated temperature and pressure sensor is difficult to meet the installation requirements.

[0065] In order to solve the above problems, the present application provides a sensing device, which includes: a shell, in which an air intake passage is provided, and the air intake passage has an air inlet; a temperature sensor, at least partially provided in the shell, and configured to detect temperature; and an air pressure sensor, at least partially provided in the shell, the air pressure sensing part of the air pressure sensor is connected to the air intake passage, and is configured to detect air pressure; wherein the air intake passage surrounds the outer periphery of the temperature sensor.

[0066] In this type of sensing device, the air intake passage surrounds the periphery of the temperature sensor, and the air intake passage can be fully utilized to realize air intake, so that the air pressure sensor can realize air pressure detection. This structure not only makes the structure of the sensor installation part more compact, but also reduces the maximum radial dimension of the air intake passage when the air intake volume is constant, thereby reducing the diameter of the sensor installation part, meeting the installation requirements of smaller apertures, and improving the adaptability of the sensor device to the aperture when installing.

[0067] Figure 1 The storage container 100 includes a container body 20 and a sensor device 10 . The container body 20 is configured to store a medium, and the sensor device 10 is installed on the container body 20 .

[0068] The container body 20 may be a rectangular parallelepiped, a cylinder or other shapes, and the medium in the container body 20 may be a liquid or a gas. For example, the liquid may be an electrolyte used to fill a battery cell. The sensor device 10 may be installed on the top wall or side wall of the container body 20. Figure 2 As shown, the sensing device includes a temperature sensor 14 and an air pressure sensor 15. The temperature sensor 14 is used to detect the temperature of the medium, and the air pressure sensor 15 is used to detect the air pressure in the container body 20. If the stored medium is gas, the air pressure is the medium pressure. If the stored medium is liquid, the air pressure is the air pressure in the space above the liquid surface in the container body 20.

[0069] This type of sensing device 10 can be used in scenarios where both temperature and air pressure need to be detected simultaneously. The following embodiments are mainly described using the example of storing electrolyte in the container body 20, that is, the temperature of the electrolyte in the storage tank serving as the container body 20 is detected, and the gas pressure above the liquid surface in the storage tank is detected, but it is not limited to this. The sensing device 10 can be used to detect the temperature and air pressure parameters of any medium stored in any container body 20.

[0070] Figure 2 Schematic diagram of the structure of some embodiments of the sensor device. The sensor device includes: a housing 10', in which an air intake passage 13 is provided, and the air intake passage 13 has an air intake port 131; a temperature sensor 14, at least partially provided in the housing 10', and configured to detect temperature; and an air pressure sensor 15, at least partially provided in the housing 10', and an air pressure sensing part 151 of the air pressure sensor 15 is connected to the air intake passage 13, and configured to detect air pressure; wherein the air intake passage 13 surrounds the outer periphery of the temperature sensor 14.

[0071] The shell 10 ′ can be made of metal material. The medium stored in the container body 20 is corrosive, such as electrolyte, etc., and the shell 10 ′ can be made of corrosion-resistant material.

[0072] The gas in the container body 20 can enter the air inlet channel 13 through the air inlet 131. The temperature sensor 14 can detect the temperature of the medium in the container body 20 through the temperature sensing part 141. The temperature sensing part 141 can be in direct contact with the medium, or in contact with the medium through the gas. For example, the temperature sensing part 141 can be a thermocouple and a resistance temperature sensor, etc. The resistance temperature sensor can be a platinum resistance temperature sensor, etc., but the type of the temperature sensor 14 is not limited thereto.

[0073] The air pressure sensing part 151 of the air pressure sensor 15 is connected to the air inlet channel 13. The gas in the container body 20 reaches the air pressure sensing part 151 through the air inlet channel 13, causing the air pressure sensing part 151 to deform, and the deformation is transmitted to the chip in the air pressure sensor 15 to detect the air pressure. For example, the air pressure sensor 15 can be an oil-filled core air pressure sensor, the end of the air pressure sensor 15 is a diaphragm, the diaphragm serves as the air pressure sensing part 151, the air pressure sensor 15 is filled with silicone oil, the gas causes the diaphragm to deform, and the pressure is transmitted through the silicone oil, and the chip in the air pressure sensor 15 responds to the air pressure, but the type of the air pressure sensor 15 is not limited to this.

[0074] The air intake passage 13 surrounds the outer circumference of the temperature sensor 14. The air intake passage 13 surrounds the temperature sensor 14 in part or all of the circumference of the temperature sensor 14. The temperature sensor 14 directly detects the temperature through the temperature sensing part 141, instead of detecting the temperature through the temperature sensing part 141 of the temperature sensor 14 after the gas enters the shell 10' through the air intake passage 13.

[0075] This embodiment is directed to an integrated temperature and air pressure sensing device, in which the air intake passage 13 surrounds the outer periphery of the temperature sensor 14. Compared with a structure in which the temperature sensor and the air intake passage are arranged side by side, the air intake passage 13 can be fully utilized to arrange the air intake around the temperature sensor 14 so as to achieve air intake, so that the air pressure sensor 15 can detect air pressure. The position of the air intake passage 13 is used to achieve the installation of the sensing device 10. This structure not only makes the structure of the installation part of the sensing device 10 more compact, but also reduces the maximum radial dimension of the air intake passage 13 when the air intake volume is constant, thereby reducing the diameter of the installation part of the sensing device 10. Even in order to ensure the detection reliability of the temperature sensor 14, when the length of the temperature sensor 14 is large and the diameter is increased, it is easy to meet the installation requirements of a smaller aperture, thereby improving the adaptability of the sensing device 10 to the aperture when installing.

[0076] In some embodiments, the temperature sensor 14 is columnar, and the temperature sensor 14 is coaxially disposed with the intake passage 13 .

[0077] Among them, the temperature sensor 14 can be cylindrical, the intake channel 13 is located outside the temperature sensor 14, the cross-section of the intake channel 13 can be a ring that is continuous along the circumference, or the ring can be divided into multiple parts along the circumference; the intake channel 13 can extend along part or the entire circumference of the temperature sensor 14.

[0078] In this embodiment, the temperature sensor 14 is coaxially arranged with the air intake passage 13, so that the radial width of the air intake passage 13 at different circumferential positions can be relatively uniform, and the diameter of the installation part of the sensor device 10 can be further reduced, making it easier to meet the installation requirements of smaller apertures. Moreover, the uniform air intake through the air intake passage 13 can stabilize the air flow in the housing 10', and the pressure acting on the air pressure sensing part 151 is also relatively stable, which can improve the air pressure detection accuracy and improve the accuracy of the air pressure detection results.

[0079] In some embodiments, the temperature sensing portion 141 of the temperature sensor 14 extends out of the housing 10 ′ through the air inlet 131 .

[0080] The temperature sensor 14 penetrates through one end of the housing 10 ′ away from the air inlet 131 , and the temperature sensing portion 141 extends out of the housing 10 ′ from the air inlet 131 for a distance after passing through the air inlet passage 13 .

[0081] For example, when a liquid medium is stored in the container body 20, the extended length of the temperature sensing part 141 may not be less than the distance between the mounting interface of the sensor device 10 and the liquid surface of the medium. The distance is constructed so that the temperature sensing part 141 is in direct contact with the liquid medium, including the temperature sensing part 141 at the end just contacting the liquid surface or extending into the medium, and there is still a gap between the air inlet 131 and the liquid surface of the medium. This can not only accurately detect the temperature of the liquid medium, but also allow the gas in the container body 20 to reach the air pressure sensor 15 through the air inlet channel 13 to realize air pressure detection.

[0082] This embodiment facilitates direct contact between the temperature sensing portion 141 and the liquid medium when the liquid medium is stored in the container body 20, thereby more accurately detecting the temperature of the liquid medium.

[0083] In some embodiments, the length section of the housing 10 ′ near the air inlet 131 is cylindrical and is provided with an external thread 113 , which forms a mounting interface of the sensor device 10 .

[0084] Among them, Figure 1 As shown, the container body 20 of the storage container 100 may be provided with a third through hole 201, which is a threaded hole, and the external thread 113 on the housing 10' cooperates with the third through hole 201 to achieve installation of the sensor device 10. Optionally, the installation interface on the housing 10' may also be a buckle or the like.

[0085] In this embodiment, the outer thread 113 is provided on the housing 10' as an installation interface, which has a simple structure, is easy to process, is convenient for assembly and disassembly, and is convenient for fine-tuning the installation height of the sensor device 10 after installation, so as to adjust the height position of the temperature sensing part 141 according to the detection needs. Moreover, the outer thread 113 is provided at a position of the housing 10' close to the air inlet 131, which is conducive to avoiding the protruding structure on the installation surface of the container body 20 after installation.

[0086] In some embodiments, Figure 2 As shown, the sensor device further includes a support structure 16 , and the support structure 16 is abutted between the housing 10 ′ and the temperature sensor 14 .

[0087] The support structure 16 is in contact with the inner surface of the housing 10' and the outer surface of the temperature sensor 14. The support structure 16 can be an independent component connected to the housing 10', or it can be integrally formed with the housing 10'. Since the temperature sensor 14 is a slender structure, if it is only fixed at the tail end, the cantilever length section is prone to shaking, affecting the installation stability.

[0088] This embodiment provides auxiliary support for the temperature sensor 14 by setting the support structure 16, which can increase the connection strength between the temperature sensor 14 and the housing 10', prevent the cantilever length section of the temperature sensor 14 from shaking, ensure the reliability of the temperature sensor 14, and improve the detection accuracy.

[0089] In some embodiments, Figure 3 As shown, the support structure 16 includes a plurality of support members 161 , which are arranged at intervals along the circumference of the temperature sensor 14 , and at least a portion of the intake passage 13 is formed between adjacent support members 161 .

[0090] Optionally, multiple support members 161 may be distributed radially, and the support members 161 may extend along the radial direction of the temperature sensor 14; or the support members 161 may extend along a direction that is angled with the radial direction of the temperature sensor 14. For example, the support members 161 may extend along a straight line or a curve, which is within the protection scope of the present application, as long as a cavity is formed between adjacent support members 161 to achieve air intake. Optionally, the support members 161 may be in the shape of a long strip, or a thin plate extending along the axial direction of the temperature sensor 14, etc.

[0091] For example, the first end of the support member 161 can be directly connected to the inner wall of the housing 10', for example, the first end of the support member 161 is welded to the inner wall of the housing 10'; or the first ends of the multiple support members 161 are connected through the first annular portion, and the first annular portion is then connected to the inner wall of the housing 10' by welding or the like. The second end of the support member 161 can be a free end. After the temperature sensor 14 passes through the multiple support members 161, the outer wall of the temperature sensor 14 is directly supported by the second ends of the multiple support members 161; or the second ends of the multiple support members 161 are connected through the second annular portion, and the second annular portion supports the temperature sensor 14. This structure makes it easier to install the temperature sensor 14 and has a better positioning effect.

[0092] For example, in Figure 3 In the embodiment, four support members 161 are provided. In addition, two, three or more support members 161 may be provided as required.

[0093] This embodiment arranges a plurality of support members 161 at circumferential intervals on the temperature sensor 14, and forms at least a portion of the air intake passage 13 between adjacent support members 161. This can provide stable and uniform auxiliary support for the temperature sensor 14, and can fully utilize the peripheral space of the temperature sensor 14 to form the air intake passage 13, so that the gas can be transmitted to the air pressure sensor 15 to realize air pressure detection.

[0094] In some embodiments, Figure 2 As shown, at least two support structures 16 are provided, and the at least two support structures 16 are spaced apart along the extending direction of the air intake passage 13 .

[0095] This embodiment can provide multi-point support in the length direction of the temperature sensor 14 by arranging at least two support structures 16 at intervals in the extension direction of the air intake passage 13, which can further improve the installation stability of the temperature sensor 14, thereby improving the structural reliability of the entire sensor device 10 and the accuracy of the detection results.

[0096] In some embodiments, the support structure 16 is located in a region of the air inlet passage 13 close to the air inlet port 131 .

[0097] In order to facilitate the fixation of the temperature sensor 14, it is generally fixed at the tail end of the temperature sensor 14, and the support structure 16 is arranged in the area of ​​the intake passage 13 close to the air inlet 131, and the head end of the temperature sensing part 141 of the temperature sensor 14 can be fixed.

[0098] In this embodiment, the support structure 16 is arranged in the area of ​​the air inlet passage 13 close to the air inlet port 131, which can increase the support span of the temperature sensor 14. In particular, for the structure in which the temperature sensing portion 141 extends out of the shell 10', the length of the cantilever end of the temperature sensor 14 can be further reduced, thereby improving the support stability of the temperature sensor 14.

[0099] In some embodiments, Figure 2 As shown, the shell 10' includes a first part 11, the first part 11 is used to form an air inlet channel 13, the first part 11 includes a first section 111 and a second section 112, the first section 111 and the second section 112 are split structures, the second section 112 forms an air inlet 131, and the first section 111 is connected to one end of the second section 112 away from the air inlet 131, and the support structure 16 is arranged in the second section 112.

[0100] For example, the first portion 11 may be cylindrical. During assembly, the support structure 16 may be first connected to the second section 112 to form an assembly, or the support structure 16 and the second section 112 may be integrally formed, and then the entire assembly may be connected to the first section 111 by welding or the like.

[0101] This embodiment takes into account that the first portion 11 is a slender cylindrical structure, designs the first portion 11 as a segmented structure, and arranges the support structure 16 in the second segment 112. Since the second segment 112 is shorter, especially when multiple support structures 16 are arranged, the support structure 16 can be conveniently fixed in the second segment 112, thereby reducing the process difficulty and improving the positioning accuracy of the support structure 16.

[0102] In some embodiments, the shell 10' also includes a first part 11 and a second part 12, the first part 11 is used to form an air intake channel 13, the second part 12 is connected to a side of the first part 11 away from the air intake port 131, a fixing seat 18 is provided in the second part 12, and the fixing seat 18 is provided with a first through hole 181 and a mounting groove 182 side by side, the temperature sensor 14 passes through the first through hole 181 and extends in the air intake channel 13, the air pressure sensor 15 is provided in the mounting groove 182, and the mounting groove 182 is connected to the air intake channel 13.

[0103] The first part 11 and the second part 12 can both be in a cylindrical shape, such as a cylindrical structure. The first part 11 is used to form an air intake passage 13, and the temperature sensor 14 passes through the air intake passage 13 to reduce the diameter of the installation interface. The diameter of the second part 12 is larger than the diameter of the first part 11, and is used to install the temperature sensor 14 and the air pressure sensor 15. The end of the second part 12 close to the first part 11 is connected to the first part 11, and the rest of the second part is closed. The first through hole 181 is coaxially arranged with the air intake passage 13 to install the temperature sensor 14, and the air pressure sensor 15 is arranged on one side of the temperature sensor 14. The two are arranged side by side, so the first part 11 deviates from the axis of the second part 12.

[0104] The second part 12 has an opening at one end away from the first part 11, and the fixing seat 18 is installed from the opening and fixed to the housing 10' by welding or other methods. The temperature sensing part 141 of the temperature sensor 14 can pass through the first through hole 181 and the air inlet channel 13 in sequence and then pass through the air inlet 131. This method can affect the assembly of the first electrical lead-out part 142 of the temperature sensor 14 and prevent damage to the first electrical lead-out part 142; or the tail end of the temperature sensor 14 can be installed by passing through the air inlet channel 13 and the first through hole 181 in sequence. The air pressure sensor 15 can be directly installed from the notch of the installation slot 182.

[0105] Optionally, the connection between the first part 11 and the second part 12 can be integrally formed, which can simplify the processing technology of the housing 10' and improve the sealing performance of the housing 10'; specifically, the second part 12 is integrally formed with the first section 111. Alternatively, the first part 11 and the second part 12 can also adopt a split structure and be connected by welding or the like.

[0106] This embodiment can conveniently realize the installation and fixation of the temperature sensor 14 and the air pressure sensor 15, and the assembly process is relatively simple. The installation groove 182 is connected with the air intake passage 13, so that the intake air can smoothly reach the air pressure sensing part 151 of the air pressure sensor 15 to realize air pressure detection.

[0107] In some embodiments, the mounting groove 182 is opened on the surface of the fixing seat 18 away from the first part 11, and the bottom surface of the mounting groove 182 is provided with a second through hole 183, and the end surfaces connecting the fixing seat 18 and the second part 12 and the first part 11 are spaced apart to form an air guide channel 184, and the mounting groove 182 is connected to the air intake channel 13 through the second through hole 183 and the air guide channel 184.

[0108] Among them, after the air pressure sensor 15 is fixed in the mounting groove 182, there is still a certain distance between the air pressure sensing part 151 and the bottom surface of the mounting groove 182, so that the gas introduced by the second through hole 183 can cover the entire area of ​​the air pressure sensing part 151, so that the entire surface of the air pressure sensing part 151 is deformed under the action of gas pressure, thereby improving the accuracy of air pressure detection.

[0109] This embodiment provides the second through hole 183 and the air guide channel 184 so that the gas can enter the housing 10 ′ through the air inlet channel 13 and then pass through the air guide channel 184 and the second through hole 183 in sequence to smoothly reach the air pressure sensing unit 151 , thereby improving the accuracy of air pressure detection.

[0110] In some embodiments, the sensing device further includes a seal 17 , which is disposed between the air pressure sensor 15 and the mounting groove 182 .

[0111] For example, Figure 2 As shown, the installation groove 182 is a stepped groove, and the sealing member 17 is an annular sealing ring, which is arranged at the bottom of the stepped groove. When the air pressure sensor 15 is installed in place, the sealing member 17 is between the bottom of the stepped groove and the step of the outer wall of the air pressure sensor 15 to achieve sealing. Optionally, an annular groove is arranged on the outer wall of the air pressure sensor 15, and the sealing ring is embedded in the annular groove to achieve sealing.

[0112] This embodiment can achieve sealing of the air pressure sensor 15 by providing a seal 17, thereby preventing gas from leaking from the gap between the air pressure sensor 15 and the mounting groove 182, thereby improving the accuracy of air pressure detection; and when the stored medium is gas or volatile liquid, it can prevent the medium from escaping.

[0113] In some embodiments, the temperature sensor 14 is welded to the first through hole 181 at least at the outer end in the entire circumference; and / or the air pressure sensor 15 is welded to the mounting groove 182 at least at the outer end in the entire circumference.

[0114] The outer end of the temperature sensor 14 refers to an end away from the air intake passage 13, and the outer end of the air pressure sensor 15 refers to an end away from the air intake passage 13. For example, laser welding may be used.

[0115] This embodiment is welded at the outer end of the temperature sensor 14 or the air pressure sensor 15, which is convenient for welding and can reduce the process difficulty. In addition, by welding the entire circumference of the temperature sensor 14 or the air pressure sensor 15, the installation gap can be filled by the weld to prevent gas leakage and play a sealing role. If the entire circumference is welded and the sealing member 17 is provided, double sealing can be achieved to improve the sealing effect and reliability.

[0116] In some embodiments, Figure 2 As shown, the sensing device 10 also includes a circuit board 19, which is arranged on a side of the temperature sensor 14 and the air pressure sensor 15 away from the air intake passage 13; the air pressure sensor 15 is located on the side of the temperature sensor 14, and the first electrical lead-out portion 142 of the temperature sensor 14 and the second electrical lead-out portion 152 of the air pressure sensor 15 are both led out toward one end close to the circuit board 19 and are electrically connected to the circuit board 19.

[0117] The circuit board 19 may also be referred to as a printed circuit board (PCB), which is used to amplify and condition the detection signals of the temperature sensor 14 and the air pressure sensor 15 and output the signals. The circuit board 19 is located on a side of the fixing base 18 away from the air inlet passage 13.

[0118] In this embodiment, the circuit board 19 is arranged on the side of the temperature sensor 14 and the air pressure sensor 15 away from the air inlet passage 13. When the humidity in the gas is high, the gas can be prevented from reaching the circuit board 19, the first electrical lead-out part 142 and the second electrical lead-out part 152 to affect their working reliability and prevent the detection function from failing; and when the medium is corrosive, the gas can be prevented from reaching the circuit board 19, the first electrical lead-out part 142 and the second electrical lead-out part 152 to cause corrosion, thereby improving the service life of the sensor device 10. In addition, this structure facilitates the installation of the circuit board 19 from the opening of the housing 10' away from the air inlet passage 13, and the first electrical lead-out part 142 and the second electrical lead-out part 152 are electrically connected to the circuit board 19.

[0119] On the basis of this structure, the temperature sensor 14 is welded to the first through hole 181 at least at the outer end in the entire circumference, and the air pressure sensor 15 is welded to the mounting groove 182 at least at the outer end in the entire circumference, so that the first electrical lead-out part 142 and the second electrical lead-out part 152 can be isolated from the medium in the shell 10', preventing gas leakage to the outside and affecting the working reliability of the circuit board 19, the first electrical lead-out part 142 and the second electrical lead-out part 152.

[0120] In some embodiments, the temperature sensor 14 and the air pressure sensor 15 are flush with one end close to the circuit board 19 .

[0121] The plane formed by the outer end of the temperature sensor 14 , the outer end of the air pressure sensor 15 and the fixing seat 18 supports the circuit board to improve the installation stability of the circuit board 19 .

[0122] In order to protect the circuit board 19 , the end of the second portion 12 extends beyond the outer surface of the circuit board 19 .

[0123] This embodiment makes the temperature sensor 14 and the air pressure sensor 15 flush with one end close to the circuit board 19, so that the first electrical lead-out portion 142 and the second electrical lead-out portion 152 can extend to the same length when connected to the circuit board 19, and it is also convenient to achieve electrical connection with the circuit board 19; moreover, when the outer end surfaces of the temperature sensor 14 and the air pressure sensor 15 exceed the installation surface, the temperature sensor 14 and the air pressure sensor 15 can jointly provide support for the circuit board 19, thereby improving the installation stability of the circuit board 19.

[0124] In some embodiments, both the temperature sensor 14 and the air pressure sensor 15 have metal packages.

[0125] In order to improve the corrosion resistance, stainless steel packaging can be used. For example, the air pressure sensor 15 can use but is not limited to an oil-filled core air pressure sensor packaged in stainless steel; the temperature sensor 14 can use but is not limited to a platinum resistance temperature sensor packaged in a stainless steel straight tube, and its length can be set according to specific test requirements.

[0126] This embodiment can protect the internal structure by metal packaging of the sensor, improve the corrosion resistance, and increase the working reliability and service life of the sensor.

[0127] The sensor devices 10 of the above embodiments can all be used in the storage container 100. The sensor devices 10 are installed on the container body 20. Since the temperature and air pressure integrated sensor device 10 surrounds the air inlet channel 13 on the outer periphery of the temperature sensor 14, the diameter of the installation part of the sensor device 10 can be reduced. Therefore, when the installation hole diameter on the container body 20 is small, it is also conducive to meeting the installation requirements to measure the temperature and air pressure of the medium stored in the container body 20.

[0128] Optionally, since the temperature sensor 14 and the air pressure sensor 15 are both metal-packaged, the housing 10 ′ can be made of corrosion-resistant metal. Therefore, when corrosive media are stored in the container body 20 , the temperature and air pressure can be stably and reliably measured for a long time.

[0129] Optionally, since the circuit board 19, the first electrical lead 142 and the second electrical lead 152 are arranged at the outer end of the sensor and are sealed by providing a seal 17 and / or welding the outer end all around, the corrosive medium can be separated from the circuit board 19, the first electrical lead 142 and the second electrical lead 152, thereby improving the reliability of detecting the medium in the container body 20 and improving the service life of the sensor device 10.

[0130] Optionally, a support structure 16 is provided between the temperature sensor 14 and the housing 10 ′ to provide stable support for the temperature sensor 14 to prevent it from shaking, and to form an air inlet channel 13 to improve the reliability and stability of the sensing device 10 in detecting the medium in the container body 20 .

[0131] In some embodiments, a third through hole 201 is disposed on the container body 20 , and one end of the shell 10 ′ close to the temperature sensor 14 is installed in the third through hole 201 .

[0132] During installation, an axial positioning structure is provided between the third through hole 201 and the installation interface on the housing 10 ′ to define the relative position between the housing 10 ′ and the third through hole 201 .

[0133] In this embodiment, the mounting interface of the sensor device 10 is arranged at one end of the shell 10' close to the temperature sensor 14, so that after installation, there is still a spacing distance between the mounting surface of the container body 20 and the second portion 12 with a larger cross-sectional area, and when there are structures such as protrusions or slopes on the mounting surface, they can be avoided, thereby improving the adaptability of the sensor device 10 to mounting surfaces of different shapes.

[0134] In some embodiments, the third through hole 201 is a threaded hole, and an end of the housing 10 ′ close to the air inlet 131 is provided with an external thread 113 that matches the threaded hole.

[0135] In this embodiment, the outer thread 113 is provided on the housing 10' as an installation interface, which has a simple structure, is easy to process, is convenient for assembly and disassembly, and is convenient for fine-tuning the installation height of the sensor device 10 after installation, so as to adjust the height position of the temperature sensing part 141 according to the detection needs. Moreover, the outer thread 113 is provided at a position of the housing 10' close to the air inlet 131, which is conducive to avoiding the protruding structure on the installation surface of the container body 20 after installation.

[0136] In some specific embodiments, Figures 1 to 3The storage container 100 includes a container body 20 and a sensor device 10. The container body 20 is configured to store a medium. The sensor device 10 is installed on the container body 20, for example, it can be installed on the top wall or the side wall of the container body 20. The container body 20 is provided with a third through hole 201, and the third through hole 201 is a threaded hole. The end of the shell 10' close to the air inlet 131 is provided with an external thread 113 that matches the threaded hole.

[0137] The sensing device 10 includes a shell 10', in which an air inlet channel 13 is provided, and the air inlet channel 13 has an air inlet port 131; at least a portion of a temperature sensor 14 is provided in the shell 10' and is configured to detect temperature, the air inlet channel 13 surrounds the outer periphery of the temperature sensor 14, the air inlet channel 13 and the temperature sensor 14 can be coaxially arranged, and a temperature sensing portion 141 of the temperature sensor 14 extends out of the air inlet port 131 on the shell 10'. In the installed state, if the medium is a liquid, the temperature sensing portion 141 contacts the liquid surface or extends into the liquid surface; at least a portion of the air pressure sensor 15 is provided in the shell 10', and the air pressure sensing portion 151 of the air pressure sensor 15 is connected to the air inlet channel 13 and is configured to detect air pressure.

[0138] The sensing device 10 also includes a circuit board 19, which is arranged on a side of the temperature sensor 14 and the air pressure sensor 15 away from the air intake passage 13; the air pressure sensor 15 is located on the side of the temperature sensor 14, and the first electrical lead-out portion 142 of the temperature sensor 14 and the second electrical lead-out portion 152 of the air pressure sensor 15 are both led out toward one end close to the circuit board 19 and are electrically connected to the circuit board 19.

[0139] The housing 10' further includes a first part 11 and a second part 12, both of which are cylindrical, the first part 11 is used to form an air inlet passage 13, the second part 12 is connected to a side of the first part 11 away from the air inlet 131, and the diameter of the second part 12 is larger than the first part 11. A fixing seat 18 is provided in the second part 12, and the fixing seat 18 is provided with a first through hole 181 and a mounting groove 182 in parallel, the temperature sensor 14 passes through the first through hole 181 and extends in the air inlet passage 13, the air pressure sensor 15 is provided in the mounting groove 182, the bottom surface of the mounting groove 182 is provided with a second through hole 183, and the end surface of the fixing seat 18 and the second part 12 connected to the first part 11 are spaced to form an air guide passage 184, and the mounting groove 182 is connected to the air inlet passage 13 through the second through hole 183 and the air guide passage 184. In the installed state, the gas can pass through the air inlet channel 13, the air guide channel 184 and the second through hole 183 in sequence to reach the air pressure sensing part 151 to achieve air pressure detection.

[0140] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A sensing device, comprising: A housing (10') having an air inlet passage (13) therein, wherein the air inlet passage (13) has an air inlet port (131); a temperature sensor (14), at least partially disposed within the housing (10'), configured to detect temperature; and An air pressure sensor (15) is at least partially disposed in the housing (10'), and an air pressure sensing portion (151) of the air pressure sensor (15) is in communication with the air intake passage (13) and is configured to detect air pressure; Wherein, the air intake passage (13) surrounds the outer periphery of the temperature sensor (14).

2. The sensor device according to claim 1, wherein: The temperature sensor (14) is columnar, and the temperature sensor (14) is coaxially arranged with the air intake passage (13).

3. The sensor device according to claim 1 or 2, wherein: The temperature sensing portion (141) of the temperature sensor (14) extends out of the housing (10') through the air inlet (131).

4. The sensor device according to any one of claims 1 to 3, wherein: The length section of the housing (10') close to the air inlet (131) is cylindrical and is provided with an external thread (113), and the external thread (113) forms a mounting interface of the sensor device (10).

5. The sensing device according to any one of claims 1 to 4, further comprising a supporting structure (16), wherein the supporting structure (16) is abutted between the housing (10') and the temperature sensor (14).

6. The sensor device according to claim 5, wherein: The support structure (16) comprises a plurality of support members (161), wherein the plurality of support members (161) are arranged at intervals along the circumference of the temperature sensor (14), and at least a portion of the air intake passage (13) is formed between adjacent support members (161).

7. The sensing device according to claim 5 or 6, wherein: At least two of the support structures (16) are provided, and the at least two support structures (16) are arranged at intervals along the extension direction of the air intake passage (13).

8. The sensor device according to any one of claims 5 to 7, wherein: The support structure (16) is located in a region of the air inlet passage (13) close to the air inlet port (131).

9. The sensor device according to any one of claims 5 to 8, wherein: The shell (10') comprises a first part (11), the first part (11) is used to form the air inlet passage (13), the first part (11) comprises a first section (111) and a second section (112), the first section (111) and the second section (112) are separate structures, the second section (112) forms the air inlet (131), and the first section (111) is connected to an end of the second section (112) away from the air inlet (131), and the support structure (16) is arranged in the second section (112).

10. The sensor device according to any one of claims 1 to 9, wherein: The shell (10') further comprises a first part (11) and a second part (12), wherein the first part (11) is used to form the air intake passage (13), and the second part (12) is connected to a side of the first part (11) away from the air intake port (131). A fixing seat (18) is provided in the second part (12), and the fixing seat (18) is provided with a first through hole (181) and a mounting groove (182) in parallel. The temperature sensor (14) passes through the first through hole (181) and extends in the air intake passage (13), and the air pressure sensor (15) is provided in the mounting groove (182), and the mounting groove (182) is communicated with the air intake passage (13).

11. The sensor device according to claim 10, wherein: The mounting groove (182) is provided on a surface of the fixing seat (18) away from the first part (11); a second through hole (183) is provided on a bottom surface of the mounting groove (182); and end surfaces of the fixing seat (18) and the second part (12) connected to the first part (11) are spaced apart to form an air guide channel (184); the mounting groove (182) is connected to the air inlet channel (13) via the second through hole (183) and the air guide channel (184).

12. The sensing device according to claim 10 or 11, further comprising a sealing member (17), wherein the sealing member (17) is disposed between the air pressure sensor (15) and the mounting groove (182).

13. The sensor device according to any one of claims 10 to 12, wherein: The temperature sensor (14) is welded to the first through hole (181) at least at the outer end in the entire circumferential direction; and / or The air pressure sensor (15) is welded to the mounting groove (182) at least at the outer end in the entire circumferential direction.

14. The sensing device according to any one of claims 1 to 13, further comprising a circuit board (19), wherein the circuit board (19) is arranged on a side of the temperature sensor (14) and the air pressure sensor (15) away from the air intake passage (13); the air pressure sensor (15) is located on the side of the temperature sensor (14), and the first electrical lead-out portion (142) of the temperature sensor (14) and the second electrical lead-out portion (152) of the air pressure sensor (15) are both led out toward one end close to the circuit board (19) and are electrically connected to the circuit board (19).

15. The sensing device according to claim 14, wherein: The temperature sensor (14) and the air pressure sensor (15) are flush with one end close to the circuit board (19).

16. The sensor device according to any one of claims 1 to 15, wherein: The temperature sensor (14) and the air pressure sensor (15) both have metal packaging.

17. A storage container comprising: A container body (20) configured to store a medium; and The sensor device (10) according to any one of claims 1 to 16, wherein the sensor device (10) is installed on the container body (20).

18. The storage container according to claim 17, wherein: The container body (20) is provided with a third through hole (201), and one end of the shell (10') close to the temperature sensor (14) is installed in the third through hole (201).

19. The storage container according to claim 18, wherein: The third through hole (201) is a threaded hole, and one end of the housing (10') close to the air inlet (131) is provided with an external thread (113) that matches the threaded hole.

Images