Liquid detector

Abstract

The embodiment of the present disclosure provides a liquid detector. Relate to the field of liquid detection. For improving the heat exchange efficiency of the liquid detector. The liquid detector comprises a shell and a first detector fixedly arranged on the shell. Wherein, the first detector comprises a heating probe, a resilient member and a heat dissipation member. The resilient member is fixedly connected with the heating probe. The heat dissipation member is relatively slidably arranged between the heating probe and the resilient member, so that the heat dissipation member is in contact or separated from the heating probe. Wherein, in the case that the heat dissipation member is separated from the heating probe, the resilient member generates a resilient force on the heat dissipation member, and the resilient force is used to make the heat dissipation member slide until the heat dissipation member is in contact with the heating probe. When the heating probe detects, the heat dissipation member is separated from the heating probe, that is, the heat dissipation member does not cool the heating probe, so that the accurate detection of the liquid in the metal container by the heating probe can be ensured.

Description

Technical Field

[0001] This disclosure relates to the field of liquid detection, and more particularly to a liquid detector. Background Technology

[0002] Liquid detectors are security inspection instruments specifically designed to detect flammable and explosive liquids. They have become standard equipment for security checks in public transportation areas such as airports, high-speed rail stations, and subway stations. Liquid detectors can detect liquids contained in bottles and containers (such as alcoholic beverages, toxic or harmful liquids like alcohol and oil, or flammable and explosive liquids), thereby effectively enhancing security in public places and protecting people's lives and property.

[0003] Existing liquid detectors consist of a probe and a fan. The probe detects the liquid inside the container, and after detection, a fan cools the detector using air heat exchange. However, air heat exchange is easily affected by the environment (for example, the temperature in a chemical plant is higher than that in an airport), which may result in low heat exchange efficiency between the fan and the liquid detector. This can hinder cooling of the liquid detector, leading to inaccurate measurements and potentially causing safety accidents. Summary of the Invention

[0004] The purpose of this disclosure is to provide a liquid detector that improves the cooling efficiency of the liquid detector.

[0005] To achieve the above objectives, embodiments of this disclosure provide a liquid detector. The liquid detector includes a housing and a first detector fixedly mounted on the housing. The first detector includes a heating probe, a spring-loaded component, and a heat sink. The spring-loaded component is fixedly connected to the heating probe. The heat sink is slidably disposed between the heating probe and the spring-loaded component, allowing the heat sink to contact or separate from the heating probe.

[0006] In the case where the heat sink is separated from the heating probe, the spring mechanism generates a spring force on the heat sink, which is used to make the heat sink slide until it contacts the heating probe.

[0007] In the aforementioned liquid detector, after the heat sink and heating probe separate, the heat sink slides towards the rebound element, squeezing it and creating a rebound force. At this point, the heating probe can be activated to detect the liquid inside the container (e.g., a metal container). After detection, the heat sink uses its rebound force to slide towards the heating probe, eventually making contact. During this contact, the heating probe and heat sink directly exchange heat, cooling the probe for future use. Even when the heat sink is separated from the heating probe (meaning it doesn't cool the probe), the heating probe can still be used for detection, ensuring accurate detection of liquids, such as those inside metal containers.

[0008] In some embodiments, when the heat sink is in contact with the heating probe, a portion of the heat sink protrudes from the surface of the heating probe away from the spring.

[0009] In some embodiments, the heat sink includes a heat sink block and a flexible heat-conducting block. The flexible heat-conducting block is fixedly disposed on the side of the heat sink block away from the spring-loaded component and is capable of contacting the heating probe.

[0010] In some embodiments, the liquid detector further includes an anti-accidental touch button. The anti-accidental touch button is fixedly connected to a spring-loaded component. When the heat sink is separated from the heating probe, the heat sink triggers the anti-accidental touch button to open; when the heat sink is in contact with the heating probe, the heat sink separates from the anti-accidental touch button, and the anti-accidental touch button closes. The anti-accidental touch button is coupled to the heating probe.

[0011] In some embodiments, the liquid detector may further include a detection button disposed on the housing and coupled to the heating probe.

[0012] In some embodiments, the liquid detector may also include an anti-accidental touch button. The anti-accidental touch button is fixedly connected to the spring-loaded component. When the heat sink is separated from the heating probe, the heat sink triggers the anti-accidental touch button to open; when the heat sink is in contact with the heating probe, the heat sink separates from the anti-accidental touch button, and the anti-accidental touch button closes. The anti-accidental touch button is coupled to the heating probe.

[0013] The liquid detector also includes a detection button, which is located on the housing and is coupled to the heating probe.

[0014] In some embodiments, the spring-loaded member is provided with a first through hole. The anti-accidental touch button includes a button body and a trigger portion. The button body is fixedly disposed on the side of the spring-loaded member away from the heating probe. The trigger portion extends through the first through hole to the side of the spring-loaded member closer to the heating probe.

[0015] In some embodiments, the spring-loaded element includes a support portion and an elastic element. The support portion is fixedly connected to the heating probe. The elastic element elastically connects the support portion and the heat sink.

[0016] In some embodiments, the liquid detector further includes a mounting bracket for fixing the heating probe and for fixedly connecting it to the spring.

[0017] In some embodiments, the fixing bracket includes a bracket body and a pressure plate, the bracket body being fixedly connected to a spring-loaded member. The pressure plate secures the heating probe to the bracket body.

[0018] In some embodiments, the support body includes a frame having a hollow portion and a mounting portion protruding from the frame along the thickness direction of the frame; the heating probe passes through the hollow portion of the frame and extends between the pressure plate and the mounting portion.

[0019] In some embodiments, the fixed bracket is provided with a groove for the heat sink to slide.

[0020] In some embodiments, the heating probe includes two fixed portions disposed opposite each other and a bridge portion, the bridge portion being connected to the same-side ends of the two fixed portions.

[0021] In some embodiments, the heating probe includes a heating wire and a temperature sensor. A protective groove with an opening facing the heating probe is provided on the heat sink, and the heating probe and the protective groove have a directly opposite area along the sliding direction of the heat sink.

[0022] In some embodiments, the heating probe is a flexible heating probe.

[0023] In some embodiments, the liquid detector further includes a second detector for detecting liquids within a non-metallic container. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0025] Figure 1 This is a structural diagram of a liquid detector according to some embodiments.

[0026] Figure 2 An exploded view of a first detector according to some embodiments.

[0027] Figure 3 This is a structural diagram of a heating probe according to some embodiments.

[0028] Figure 4 This is an assembly diagram of a mounting bracket and a heating probe according to some embodiments.

[0029] Figure 5 This is a structural diagram of a fixed bracket according to some embodiments.

[0030] Figure 6 This is a structural diagram of the support body according to some embodiments.

[0031] Figure 7 This is an exploded view of a heat sink according to some embodiments.

[0032] Figure 8 This is a structural diagram of a heat sink according to some embodiments.

[0033] Figure 9 This is a structural diagram of a heat sink according to some embodiments.

[0034] Figure 10 This is a structural diagram of a springback component according to some embodiments.

[0035] Figure 11 This is a structural diagram of an anti-accidental touch button according to some embodiments.

[0036] Figure 12 This is an assembly diagram of a spring-loaded component and an anti-accidental touch button according to some embodiments.

[0037] Figure 13 This is a structural diagram of another first detector obtained from the above-disclosed embodiments.

[0038] Figure 14 In the undetected state Figure 13 A cross-sectional view along PQ, structural diagram of a metal container.

[0039] Figure 15 In the detection state Figure 13 A cross-sectional view along PQ, structural diagram of a metal container. Detailed Implementation

[0040] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0041] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0042] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0043] In describing some embodiments, the terms "coupled" and "connected," and their derivative expressions, may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. Similarly, the term "coupled" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact. However, the terms "coupled" or "communicatively coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0044] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0045] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0046] As used herein, depending on the context, the term “if” may optionally be interpreted as meaning “when”, “in the event of”, “in response to determination”, or “in response to detection”. Similarly, depending on the context, the phrase “if it is determined that…” or “if [the stated condition or event] is detected” may optionally be interpreted as meaning “in the event of determination that…”, “in response to determination that…”, “when [the stated condition or event] is detected”, or “in response to the detection of [the stated condition or event]”.

[0047] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0048] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0049] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0050] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0051] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on another layer or substrate, or that there is an intermediate layer between the layer or element and another layer or substrate.

[0052] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched regions shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0053] Figure 1 This is a structural diagram of a liquid detector according to some embodiments.

[0054] Embodiments of this disclosure provide a liquid detector. See also Figure 1 The liquid detector includes a housing 6 and a first detector 1.

[0055] For example, housing 6 may be composed of a first housing and a second housing, thereby facilitating the disassembly and maintenance of equipment, electronic components, etc., inside the housing. For instance, if the first housing is an upper housing and the second housing is a lower housing, then housing 6 is composed of the upper housing and the lower housing. As another example, housing 6 may be made of an insulating material; for example, it may be hard plastic; or it may be made of metal, in which case an insulating layer is applied to both the inner and outer surfaces of the metal housing.

[0056] The first detector 1 is used to detect the liquid inside the metal container. The metal container is made of metallic materials, including elemental metals, alloys, and other materials containing metallic elements. These materials may possess thermal conductivity.

[0057] The first detector 1 is fixedly mounted on the housing 6. Exemplarily, the first detector 1 can be installed within a mounting opening on the housing 6; for example, it can be snapped into the mounting opening or fitted with an interference fit within the mounting opening of the housing 6. Also exemplaryly, the first detector 1 can be mounted on the outer surface of the housing 6; for example, the first detector 1 can be fixed to the outer surface of the housing 6 with screws. In one possible implementation, the first detector 1 can also be fitted with an interference fit within the mounting opening of the housing 6 and fixed with screws.

[0058] See also Figure 1 The liquid detector may also include a second detector 2 fixedly mounted on the housing 6. The method of fixing the second detector 2 to the housing can be referred to the relevant description of the first detector 1. Exemplarily, the second detector 2 is used to detect liquids inside a non-metallic container. The second detector 2 can be a detector capable of emitting microwaves or a detector capable of emitting electromagnetic waves. Microwaves or electromagnetic waves are used to detect the liquid inside the non-metallic container. Furthermore, since the second detector 2 can continuously emit microwaves or electromagnetic waves, it can continuously detect the liquid inside the non-metallic container. The second detector 2 can be used to detect whether the liquid inside the non-metallic container is a hazardous liquid or a non-hazardous liquid.

[0059] See also Figure 1 The liquid detector may also include a display screen 3, control buttons 4, detection buttons 5, and a power supply 7.

[0060] For example, the display screen 3 can be connected to one or both of the first detector 1 and the second detector 2 to display measurement data; wherein, the measurement data may include detection results, number of detections, and detection records, etc. In some examples, the display screen 3 can be a liquid crystal display screen, an organic light-emitting diode (OLED) display panel, etc.

[0061] For example, the control button 4 can be coupled to the display screen 3 to control the display screen 3 to perform corresponding functions. For example, the control button can be a power button to control the display screen 3 to turn on or off; it can also be a selection button to control the display screen 3 to display the measurement data of the first detector 1 or the measurement data of the second detector 2; or it can be a return button to control the display screen 3 to return to the display interface at startup.

[0062] For example, the detection button 5 is a switching device. In some examples, one detection button 5 can be coupled to the first detector 1 and the second detector 2 to control the opening or closing of the first detector 1 and the second detector 2. For example, the detection button 5 can control the first detector 1 and the second detector 2 to be on or off simultaneously. Alternatively, the detection button 5 can also control the first detector 1 to be on while the second detector 2 is off, or the second detector 2 to be on while the first detector 1 is off. In other examples, there are two detection buttons 5, referred to as the first detection button and the second detection button. In this case, the first detection button can be coupled to the first detector 1 to control the opening or closing of the first detector 1; and the second detection button can be coupled to the second detector 2 to control the opening or closing of the second detector 2. For example, the detection button 5 can also be a flexible element with an on / off function.

[0063] For example, the handle 601 may be formed as a part of the housing 6. In other examples, the housing 6 may not have a handle formed therein, in which case a handle may be externally attached to the housing 6.

[0064] Exemplarily, the power supply 7 is used to power the first detector 1, the second detector 2, and the display screen 3. In some examples, the power supply 7 can be a rechargeable battery or a dry cell battery. In some examples, the power supply 7 is installed inside a housing, for example, it can be installed inside a handle 601 formed by a portion of the housing 6.

[0065] Based on the content disclosed in the above embodiments, the liquid detector has the function of detecting liquids in metal containers and also has the function of detecting liquids in non-metallic containers.

[0066] Figure 2 This is a structural diagram of a first detector according to this disclosure. See also... Figure 2 The first detector 1 includes a heating probe 11, a spring-loaded component 14, and a heat sink 13.

[0067] The heating probe 11 can be fixed to the housing 6. The spring-loaded component 14 is fixedly connected to the heating probe 11. In this text, "A is fixed to B" or "A and B are fixedly connected" means that A and B have a relatively fixed positional relationship, and they can be in contact and fixed together; or they can not be in contact but are fixed together by other components.

[0068] The heat sink 13 is slidably disposed between the heating probe 11 and the spring-loaded member 14, allowing the heat sink 13 to contact or separate from the heating probe 11. Specifically, refer to... Figure 2 The arrangement shown in the figure, for example from left to right, is a heating probe 11, a heat sink 13, and a spring-loaded component 14. In the initial state, the heat sink 13 can contact the heating probe 11; as the heat sink 13 slides to the right, it separates from the heating probe 11; then, as the heat sink slides to the left, the first detector 1 returns to its initial state.

[0069] When the heat sink 13 separates from the heating probe 11, the spring member 14 generates a restoring force on the heat sink 13. This restoring force is used to slide the heat sink 13 until it contacts the heating probe 11. Alternatively, when the heat sink 13 is in contact with the heating probe 11, the spring member 14 can also generate a restoring force on the heat sink 13, ensuring a tight contact between them; of course, in this case, the spring member 14 can also return to its original shape (with almost no elastic deformation).

[0070] Working principle of heating probe 11: Heating probe 11 utilizes the heat transfer properties of metal to detect liquids within a metal container. Specifically, the heated probe 11 comes into contact with the metal container and transfers heat to the liquid inside, thus heating the liquid. After a period of time (e.g., 0-3 seconds, 0-4 seconds, 0-5 seconds), the temperature difference of the liquid within the metal container during this period (from the start to the end of heating) can be measured (e.g., using a temperature sensor described below; or using an external temperature detector). This temperature difference is compared with a predetermined value (or threshold) in an existing database (e.g., a database of hazardous and non-hazardous liquids). If the detected temperature difference is greater than the predetermined value, the liquid is considered hazardous; otherwise, it is considered non-hazardous. It should be noted that the first detector in this embodiment can only detect whether the liquid in the metal container is hazardous or non-hazardous, but it cannot accurately determine whether the liquid is a specific solution.

[0071] The advantage of this is that, in the sample room, it is known that there are several dangerous liquids and several non-dangerous liquids, but the presence of corrosion and moisture makes the nameplates on the metal containers unclear. Using the first detector, these can be eliminated one by one, and it can be determined which are dangerous liquids and which are non-dangerous liquids. Compared with opening the containers for component identification, the first detector used in this embodiment has a high resolution efficiency and can also avoid safety accidents.

[0072] Working principle of the spring element 14 and the heat sink 13: The heat sink 13 separates from the heating probe 11. The heat sink 13 slides towards the spring element 14 and presses against the spring element 14, causing the spring element 14 to undergo elastic deformation, which in turn generates a rebound force on the heat sink 13. At this time, the heating probe 11 can be turned on to detect the liquid in the metal container. After the detection is completed, the heat sink 13 uses the rebound force to slide towards the heating probe 11, eventually bringing the heat sink 13 into contact with the heating probe 11.

[0073] Figure 3 This is a structural diagram of the heating probe 11 according to some embodiments. See also... Figure 3 The heating probe 11 may include a heat-conducting plate, a heating wire, and a temperature sensor. The heating wire and temperature sensor are disposed within the heat-conducting plate. The heating probe 11 operates as follows: the heating wire, when energized, heats the heat-conducting plate, which then contacts the metal container, transferring heat to the liquid within. Simultaneously, the temperature sensor, when energized, measures the temperature of the liquid within the metal container. It should be noted that the temperature sensor can continuously measure the temperature difference of the liquid within the metal container over a specified period (e.g., 0-3 seconds, 0-4 seconds, 0-5 seconds); alternatively, it can measure only the temperature values ​​of two states within the specified period (e.g., 0-3 seconds, 0-4 seconds, 0-5 seconds) (i.e., the temperature at the start of heating and the temperature at the end of heating), and calculate the difference between these two temperatures to obtain the temperature difference value. In some possible implementations, there may be two heat-conducting plates, with the heating wire and temperature sensor encased between the two plates. In other possible implementations, there may be only one heat-conducting plate.

[0074] The heating probe 11 includes a bridge portion 112 and two fixing portions 111. The two fixing portions 111 can be disposed opposite to each other, and the bridge portion 112 fixes their ends on the same side together. For example, the two fixing portions 111 and the bridge portion 112 can form an integral structure. Exemplarily, the fixing portion 111 can include a connected flat plate and a curved plate, wherein one end of the curved plate is connected to the bridge portion 112. The bridge portion 112 can be a flat plate, so that the heating probe 11 can form an approximately arched structure.

[0075] The heating wire and temperature sensor are both located inside the bridge section 112; after the bridge section 112 comes into contact with the outer wall of the metal container, it is able to transfer heat to the metal container and detect the temperature.

[0076] Both fixing parts 111 are connected to the spring-loaded part 14 ( Figure 2 (as shown in the diagram) a fixed connection; for example, the fixing part 111 can be fixedly connected to the spring member 14 by other components (such as the fixing bracket described below). The two fixing parts 111 can also be fixedly connected to the housing 6 (as shown in the diagram). Figure 1 (as shown in the figure) a fixed connection; for example, the fixing part 111 can be fixedly connected to the housing 6 by other components (such as the fixing bracket below).

[0077] The heating probe 11 is a flexible heating probe. When the heating probe 11 contacts the outer wall of the metal container, its flexibility allows it to bend, increasing the contact area between the probe and the container and thus improving the heat exchange efficiency, ultimately accelerating the detection speed. In some examples, the heating probe is flexible and has an arched structure, allowing it to bend and deform inwards upon contact with the metal container.

[0078] For example, the heat-conducting plate of the heating probe 11 is made of a flexible thermally conductive material. In some examples, the bridge portion 112 is made of a flexible thermally conductive material; the fixing portion 111 can be made of a rigid thermally conductive or non-thermally conductive material, which facilitates fixed connection; in other examples, both the bridge portion 112 and the fixing portion 111 can be made of a flexible thermally conductive material, thus facilitating the processing of the fixing portion 111 and the bridge portion 112 to form the heating probe 11. The aforementioned flexible thermally conductive material is a flexible material with thermal conductivity, such as polyimide.

[0079] See Figure 4 , Figure 5 and Figure 6 The liquid detector also includes a mounting bracket 12. The mounting bracket 12 can be fixedly connected to the heating probe 11 and to the spring-loaded component; the mounting bracket 12 achieves a fixed connection between the heating probe 11 and the spring-loaded component. The mounting bracket 12 can also be fixedly connected to the housing; this achieves a fixed connection between the heating probe 11 and the housing. For example, the mounting bracket 12 is made of plastic. This gives the mounting bracket 12 advantages such as light weight and low cost.

[0080] The fixed bracket 12 includes a bracket body 122 and a pressure plate 121. The bracket body 12 can be fixedly connected to the spring-loaded component. The bracket body 122 can also be fixedly connected to the housing. The pressure plate 121 fixes the heating probe 11 to the bracket body 122.

[0081] The support body 122 includes a frame 1224 with a hollow portion (e.g., the hollow portion can be understood as the inner ring hereinafter, and also as the inner ring hereinafter, and the gap formed between the inner ring and the mounting portion) and a mounting portion 1223 protruding from the frame 1224 along the thickness direction of the frame 1224. The heating probe 11 passes through the hollow portion of the frame 1224 and extends between the pressure plate 121 and the mounting portion 1223. The pressure plate 121 fixes the heating probe 11 to the mounting portion 1223.

[0082] For example, if the frame 1224 is a ring-shaped structure, then the ring-shaped frame 1224 has an inner ring and an outer ring. For example, the inner ring and the outer ring can be polygonal or circular, respectively. In some examples, the outer ring of the frame 1224 can be mounted on a housing (e.g., a mounting hole in the housing). In other examples, a spring-loaded member can be fixedly connected to the side of the frame 1224 away from the heating probe 11. In one possible implementation, a gap 1222 exists between the mounting portion 1223 and the frame 1224 for the heating probe 11 to pass through; the gap 1222 facilitates the passage of the heating probe 11 (e.g., a fixing portion). For example, a gap 1222 can be formed between the mounting portion 1223 and the inner ring of the frame 1224 (see [link to documentation]). Figure 6 For example, a gap may be formed between the mounting portion 1223 and the outer ring of the frame 1224. In another possible implementation, the thickness of the gap may be equal to the thickness of the heating probe 11.

[0083] Exemplarily, the bracket body 122 is provided with a groove 1221 for sliding the heat sink, allowing the heat sink to slide on the bracket body 122. In some examples, there may be two grooves 1221, which may be arranged opposite to each other. In some possible implementations, two opposite grooves 1221 are provided on the inner ring of the frame 1224. For example, if the inner ring of the frame 1224 is a rectangle formed by two opposite first sides and two opposite second sides, then the two grooves 1221 may be provided on the two opposite first sides, and the mounting part 1223 may be provided on the second side, so that the heat sink will not touch the mounting part 1223 or the heating probe 11 when it slides.

[0084] For example, the number of mounting portions 1223 and the number of tablets can both be one. Alternatively, the number of mounting portions 1223 can be two opposing mounting portions 1223, which can be referred to as a first mounting portion and a second mounting portion. In some examples, the first mounting portion and the second mounting portion can be respectively disposed on two opposing second sides. The number of tablets 121 is two, which can be denoted as a first tablet 121 and a second tablet 121.

[0085] In one possible implementation, the first mounting part and the second mounting part can form two gaps 1222 between them and the inner ring of the frame 1224. These two gaps 1222 are respectively used to pass through the two fixing parts of the heating probe 11. Then, a first pressure plate is used to fix one fixing part to the first mounting part, and a second pressure plate is used to fix the other fixing part to the second mounting part, thereby realizing the fixed connection between the heating probe 11 and the frame 1224.

[0086] For example, the pressure plate 121 and the fixing part can be detachably connected; for example, the pressure plate 121 and the fixing part can be connected by bolts. The pressure plate 121 and the fixing part can also be fixedly connected; for example, the pressure plate 121 and the fixing part can be fixedly connected by heat fusion or adhesive.

[0087] When the heat sink contacts the heating probe 11, a portion of the heat sink protrudes from the surface of the heating probe 11 away from the spring-loaded part. Before the heating probe 11 contacts the outer wall of the metal container, the portion of the heat sink protruding from the surface of the heating probe 11 first contacts the outer wall of the metal container. Thus, when the heating probe contacts the outer wall of the metal container, the metal container has already pushed the heat sink towards the spring-loaded part, forcing the contacting heat sink and the heating probe 11 to separate. This allows the heating probe 11 to be used to detect the liquid inside the metal container. The portion of the heat sink protruding from the surface of the heating probe 11 away from the spring-loaded part is referred to below as the first heat sink M (see...). Figure 9 ).

[0088] See Figure 7 , Figure 8 and Figure 9 The heat sink 13 includes a heat sink 132 and a flexible heat-conducting block 131. The flexible heat-conducting block 131 is fixedly disposed on the side of the heat sink 132 away from the spring-loaded component and can contact the heating probe. Compared with electronic cooling devices such as fans, the heat sink 132 can achieve the purpose of cooling, and also has the advantages of reducing maintenance frequency and extending service life.

[0089] Since the heat sink 132 is used for heat dissipation, its material can be a thermally conductive material. For example, the thermally conductive material can be a metal. The metal can be a single metal, such as aluminum, gold, silver, or copper; it can also be an alloy of the above-mentioned single metals. The thermally conductive material can also be a non-metallic material. Both metallic and non-metallic materials have good thermal conductivity.

[0090] Exemplarily, the heat sink 132 may include a first heat sink 1322 and at least one (e.g., one, or two) second heat sink 1321. In some examples, at least one (e.g., one, or two) second heat sink 1321 is disposed on the periphery of the first heat sink 1322. For example, two second sliders are disposed opposite each other on both sides of the first slider. In one possible example, at least one second heat sink 1321 may be slidably disposed within a groove; for example, two second sliders are slidably disposed in two opposite grooves. In other examples, a portion of the second heat sink 1321 protrudes from the surface of the heating probe away from the rebound member; for a clearer explanation, in Figure 9In the diagram, the second heat dissipation block 1321 protruding from one side of the heating probe is denoted as the first heat dissipation part M, and the part connected to the first heat dissipation part M is the second heat dissipation part N. The first heat dissipation part M is the part that is squeezed by the metal container. For example, after the metal container squeezes the first heat dissipation part M, the first heat dissipation part M will slide towards the rebound member. Since the first heat dissipation part M and the second heat dissipation part N form an integral second heat dissipation block 1321, and the first heat dissipation block 1322 and the second heat dissipation block 1321 form an integral heat dissipation block 132, the heat dissipation block 132 can slide towards the rebound member.

[0091] The flexible heat-conducting block 131 is used to transfer heat between the heating probe and the heat sink 132; at the same time, when the heat sink 13 is close to the heating probe, it plays a role in protecting and buffering the heating probe.

[0092] The heat sink 13 is provided with a protective groove 1311 with an opening facing the heating probe 11. Along the sliding direction of the heat sink 13, the heating probe 11 and the protective groove 1311 have a directly opposite area. This ensures that the heat sink 13 does not squeeze the heating probe (e.g., a temperature sensor) when it comes into contact with the heating probe, thereby protecting the heating probe (e.g., a temperature sensor).

[0093] For example, the protective groove 1311 can be disposed on the flexible heat-conducting block 131. Along the sliding direction of the heat sink 13, the projection area of ​​the protective groove 1311 on the heating probe is called projection area A; the raised area of ​​the temperature sensor on the heating probe is called raised area B (i.e., the temperature sensor has a certain volume, and the temperature sensor is inside the heat-conducting plate, causing a part of the heat-conducting plate to bulge, and this raised area is called raised area B). When the flexible heat-conducting block 131 is fixedly installed on the heat sink 132, and the flexible heat-conducting block 131 contacts the heating probe, the raised area B falls into the projection area A, that is, the edge contour line of the raised area B completely falls into the projection area A, thereby protecting the temperature sensor.

[0094] See Figure 10 The spring-loaded component 14 includes a support portion 142 and an elastic component 141.

[0095] The support portion 142 can be a plate-like structure, such as a sheet metal part. In some examples, the support portion 142 can be fixedly connected to the support body (e.g., a frame); for example, the support portion 142 is connected to the side of the support body (e.g., a frame) away from the heating probe by a screw. In other examples, the support portion 142 can be fixedly connected to the heating probe.

[0096] The elastic member 141 elastically connects the support portion 142 and the heat sink. After the heat sink is compressed, the elastic member 141 provides a restoring force to the heat sink block. That is, after the metal container is removed, the elastic member 141 can make the heat sink slide towards the heating probe side and make the heat sink contact the heating probe.

[0097] In some examples, the elastic element 141 can be multiple springs; it can also be multiple elastic sheets. In other examples, one end of the elastic element 141 is fixedly connected to the support portion 142. The other end can be fixedly connected to a heat sink (e.g., the side of the heat sink away from the heating probe), or it can abut against the heat sink (e.g., the side of the heat sink away from the heating probe) (i.e., only in contact, not fixedly connected).

[0098] See Figure 11 and Figure 12 The liquid detector also includes an anti-accidental touch button 15. The anti-accidental touch button 15 is fixedly connected to the return spring 14. When the heat sink 13 is separated from the heating probe 11, the heat sink 13 triggers the anti-accidental touch button 15 to open (i.e., connect); when the heat sink 13 is in contact with the heating probe 11, the heat sink 13 separates, and the anti-accidental touch button 15 closes (i.e., disconnects). The anti-accidental touch button 15 is coupled to the heating probe 11 (e.g., in series), thereby controlling the on or off state of the heating probe.

[0099] For example, the anti-accidental touch button 15 has an on / off function. For instance, the anti-accidental touch button 15 can be an electronic component or mechanical structure that has the function of conducting a circuit when in contact with it and disconnecting the circuit when not in contact with it. For example, it could be a push-button automatic reset switch (opens when in contact with the push-button automatic reset switch. The push-button automatic reset switch internally includes a reset spring, reset logic, reset components, etc., and closes when the push-button automatic reset switch is released).

[0100] The principle of the anti-accidental touch button 15: When the heat sink slides towards the side of the anti-accidental touch button 15 and comes into contact with or is pressed against the anti-accidental touch button 15 (e.g., the contact part of the anti-accidental touch button 15 as described below), the anti-accidental touch button 15 is activated. When the heat sink separates from the anti-accidental touch button 15 (e.g., from the contact part of the anti-accidental touch button 15), the anti-accidental touch button 15 is deactivated. If there is only one switch in the circuit connected in series with the heating probe, then that switch can be the anti-accidental touch button 15. Based on this, when the anti-accidental touch button 15 is activated, the heating probe starts working; when the anti-accidental touch button 15 is deactivated, the heating probe stops working.

[0101] The spring-loaded member 14 is provided with a first through hole; the anti-accidental touch button 15 may include a trigger part and a button body. The button body is fixedly disposed on the side of the spring-loaded member 14 away from the heating probe. The trigger part extends through the first through hole to the side of the spring-loaded member 14 near the heating probe. When the contact part of the anti-accidental touch button 15 contacts the heat sink, the anti-accidental touch button 15 is activated. When the trigger part of the anti-accidental touch button 15 separates from the heat sink, the trigger part automatically resets, thus deactivating the anti-accidental touch button 15.

[0102] A detection button (e.g., a single detection button, or, for example, the first of the two detection buttons mentioned above) is coupled to the heating probe 11 (e.g., in series). For example, one detection button is coupled to the heating probe 11 (e.g., in series). Or, for example, two detection buttons (e.g., the first detection button mentioned above) are coupled to the heating probe 11.

[0103] Based on the above disclosure, in some feasible implementations, the anti-accidental touch button 15 can control the heating probe to turn on or off, causing the heating probe to start or stop working. In other feasible implementations, the detection button can control the heating probe to turn on or off, causing the heating probe to start or stop working. In still other feasible implementations, the heating probe can be coupled to both the anti-accidental touch button 15 and the detection button; for example, the heating probe can be connected in series with both the anti-accidental touch button 15 and the detection button. Therefore, when both the anti-accidental touch button 15 and the detection button are turned on simultaneously, the heating probe turns on and starts working; when one or both of the anti-accidental touch button 15 or the detection button are turned off, the heating probe stops working. This ensures that the heating probe can only start detecting when both the anti-accidental touch button 15 and the detection button are turned on simultaneously, thus preventing accidental touch; when either the anti-accidental touch button 15 or the detection button is turned off, the heating probe stops working.

[0104] Figure 13 This is a structural diagram of another first detector obtained from a disclosed embodiment. Figure 14 for Figure 13 Sectional view along PQ. Figure 15 In the detection state Figure 13 Sectional view along PQ.

[0105] See Figure 13 , Figure 14 and Figure 15The working principle of the first detector is as follows: After the metal container G squeezes the first heat dissipation part M of the second heat dissipation block, the heat dissipation block 132 causes the flexible heat-conducting block 131 to slide towards the rebound member, so that the flexible heat-conducting block 131 separates from the heating probe 11. The heat dissipation block 132 squeezes the elastic member 141 to generate a rebound force. Since the metal container G is still in a state of squeezing the first heat dissipation part M, the elastic member 141 and the heat dissipation block 132 remain relatively stationary. During this process, the heat dissipation block 132 also touches or squeezes the trigger part 151 of the anti-accidental touch button 15, so that the anti-accidental touch button 15 is activated. Pressing the detection button activates the detection button, so that the heating probe starts to work. At this time, the liquid in the metal container G can be detected. Release the detection button, and the detection button will be closed, causing the heating probe to stop working and the detection to end. Remove the metal container G. At this time, the pressure of the metal container G on the first heat dissipation part M will disappear. Then, the heat dissipation component 13 will slide towards the side of the heating probe 11 using the rebound force of the elastic component 141, so that the flexible heat-conducting block comes into contact with the heating probe 11. During this process, the heat dissipation block 132 will separate from the trigger part 151 of the anti-accidental touch button 15, so that the anti-accidental touch button 15 will be closed. The anti-accidental touch button 15 will close the circuit of the heating probe 11 again, thereby achieving the function of preventing accidental touch.

[0106] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A liquid detector, characterized in that, include: A housing and a first detector fixedly mounted on the housing; wherein the first detector includes: Heating probe; The spring-loaded component is fixedly connected to the heating probe; A heat sink is slidably disposed between a heating probe and a spring-loaded component, such that the heat sink contacts or separates from the heating probe; wherein, when the heat sink is separated from the heating probe, the spring-loaded component generates a spring-loaded force on the heat sink, the spring-loaded force being used to slide the heat sink until it contacts the heating probe; When the heat sink is in contact with the heating probe, a portion of the heat sink protrudes from the surface of the heating probe away from the spring member. When the portion of the heat sink protruding from the heating probe is squeezed, the heat sink slides toward the spring member and separates from the heating probe.

2. The liquid detector according to claim 1, characterized in that, The heat sink includes: Heat sink; and, A flexible heat-conducting block is fixedly disposed on the side of the heat sink away from the spring-loaded component and is able to contact the heating probe.

3. The liquid detector according to claim 1, characterized in that, Also includes: An anti-accidental touch button is fixedly connected to the rebound member. When the heat sink is separated from the heating probe, the heat sink triggers the anti-accidental touch button to open. When the heat sink is in contact with the heating probe, the heat sink is separated from the anti-accidental touch button, and the anti-accidental touch button is turned off; the anti-accidental touch button is coupled to the heating probe. And / or, A detection button is located on the housing and is coupled to the heating probe.

4. The liquid detector according to claim 3, characterized in that, The spring-loaded component is provided with a first through hole; The anti-accidental touch button includes: The button body is fixedly disposed on the side of the rebound member away from the heating probe; and, The trigger portion extends through the first through hole to the side of the spring member near the heating probe.

5. The liquid detector according to claim 1, characterized in that, The springback component includes: The support portion is fixedly connected to the heating probe; and, An elastic element connects the bracket portion and the heat sink portion elastically.

6. The liquid detector according to claim 1, characterized in that, Also includes: A fixed bracket is used to fix the heating probe and to fix it to the spring-loaded component.

7. The liquid detector according to claim 6, characterized in that, The fixing bracket includes: The bracket body is fixedly connected to the spring-loaded component; and, Press the heating probe onto the support body.

8. The liquid detector according to claim 7, characterized in that, The support body includes: A frame with a hollow section; and, A mounting portion protrudes from the frame along its thickness direction; the heating probe passes through the hollow portion of the frame and extends between the pressure plate and the mounting portion.

9. The liquid detector according to claim 6, characterized in that, The fixed bracket is provided with a sliding groove for the heat sink to slide.

10. The liquid detector according to claim 1, characterized in that, The heating probe includes: Two fixed parts arranged opposite to each other; and, The bridge section connects to the same-side ends of the two fixed sections.

11. The liquid detector according to claim 1, characterized in that, The heating probe includes: a heating wire and a temperature sensor; The heat sink is provided with a protective groove with an opening facing the heating probe. Along the sliding direction of the heat sink, the heating probe and the protective groove have a directly opposite area.

12. The liquid detector according to claim 1, characterized in that, The heating probe is a flexible heating probe.

13. The liquid detector according to any one of claims 1 to 12, characterized in that, Also includes: The second detector is used to detect liquids inside non-metallic containers.

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