Leakage detection mechanism, leakage detection method and water purifier

Abstract

The present invention provides a water leakage detection mechanism, a water leakage detection method and a water purifier, which relate to the technical field of water treatment equipment. The water leakage detection mechanism includes a detection device, a control device and an alarm device. The detection device includes an internal water leakage detection structure, an external water leakage detection structure and a water flow structure; the internal water leakage detection structure and the external water leakage detection structure are connected to opposite sides of the water flow structure; the control device is connected to the detection device and determines whether there is internal water leakage or external water leakage of the device based on the detection information of the internal water leakage detection structure and the external water leakage detection structure or the sequence of detecting the water body; the alarm device issues a water leakage alarm. The present invention can accurately and efficiently identify whether the water leakage is inside or outside the device, and users can perform targeted maintenance. This not only reduces the maintenance frequency, extends the service life of the device, and improves the user experience; moreover, the water leakage detection mechanism can also play a role in draining water, further ensuring the stability of the device operation.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment equipment, and particularly to a water leakage detection mechanism, a water leakage detection method, and a water purifier. Background Art

[0002] The problem of water leakage in water treatment equipment has always been difficult to avoid. Especially for water purifiers using tap water as the water source, due to pipeline pressure, water leakage incidents often occur during the use of water purifiers. Once water leakage occurs, it will affect the service life of the water purifier and easily damage the facilities in the user's house.

[0003] For this reason, water treatment equipment such as existing water purifiers usually install detection devices at their bottoms to provide alarm messages when water leakage is detected. However, the existing water leakage detection devices can only detect water leakage and cannot distinguish whether the water leakage occurs inside or outside the water purifier. As long as water leakage is detected, the machine will stop and alarm, and users blindly repair the water purifier, which not only increases the repair frequency, reduces the service life of the equipment, but also greatly reduces the user experience. Summary of the Invention

[0004] The first object of the present invention is to provide a water leakage detection mechanism to solve the problem that the existing water leakage detection devices cannot distinguish whether the water leakage occurs inside or outside the equipment.

[0005] To solve the above technical problems, the present invention provides a water leakage detection mechanism, and the specific technical solution is as follows:

[0006] A water leakage detection mechanism, comprising:

[0007] A detection device, the detection device includes an internal water leakage detection structure, an external water leakage detection structure, and a water flow structure; the internal water leakage detection structure and the external water leakage detection structure are respectively connected to opposite sides of the water flow structure, at least part of the internal water leakage detection structure is located inside the device to be detected, and at least part of the external water leakage detection structure is located outside the device to be detected; the water flow structure enables water to flow between the internal water leakage detection structure and the external water leakage detection structure;

[0008] A control device, the control device is connected to the detection device and determines whether the water leakage occurs inside or outside the device based on the detection information of the internal water leakage detection structure and the external water leakage detection structure, or the sequence of detecting water;

[0009] An alarm device, the alarm device is connected to the control device and is used to issue an internal water leakage alarm or an external water leakage alarm.

[0010] Further, the water flow structure includes a substrate and water flow holes formed in the substrate; the internal water leakage detection structure includes a first detection part and a first detection circuit, both the first detection part and the first detection circuit are installed on the upper surface of the substrate, and the first detection part, the first detection circuit and the control device are connected in sequence; the external water leakage detection structure includes a second detection part and a second detection circuit, both the second detection part and the second detection circuit are installed on the lower surface of the substrate, and the second detection part, the second detection circuit and the control device are connected in sequence.

[0011] Further, the first detection part includes a first electrode plate and a second electrode plate arranged at intervals, and / or, the second detection part includes a third electrode plate and a fourth electrode plate arranged at intervals; when the first detection part includes the first electrode plate and the second electrode plate, and the second detection part includes the third electrode plate and the fourth electrode plate, one end of the water flow hole is located within the interval between the first electrode plate and the second electrode plate, and the other end is located within the interval between the third electrode plate and the fourth electrode plate.

[0012] Further, the interval between the first electrode plate and the second electrode plate forms a first water flow groove, and the interval between the third electrode plate and the fourth electrode plate forms a second water flow groove; the first water flow groove includes a plurality of first bending segments connected end to end; and / or, the second water flow groove includes a plurality of second bending segments connected end to end.

[0013] Further, when the first water flow groove includes a plurality of first bending segments connected end to end, and the second water flow groove includes a plurality of second bending segments connected end to end, at least part of the first bending segments and at least part of the second bending segments are symmetrically arranged with respect to the substrate.

[0014] Further, the first detection part includes a first humidity sensing element, and / or, the second detection part includes a second humidity sensing element.

[0015] Further, the alarm device includes a first alarm and a second alarm, and the first alarm and the second alarm are respectively connected to the control device.

[0016] Further, the alarm device includes an external terminal, and the external terminal is wirelessly connected to the control device.

[0017] According to the leakage detection mechanism provided by the present invention, the water flow structure enables water to flow between the internal leakage detection structure and the external leakage detection structure. This not only endows the device with a certain drainage performance, but also, since it takes a certain amount of time for water to flow through the flow path, the control device determines whether it is internal leakage flowing to the outside or external leakage flowing to the inside by judging the time difference between the internal leakage detection structure and the external leakage detection structure detecting water. Therefore, it can accurately and efficiently identify whether the leakage is inside or outside the device, allowing users to carry out targeted maintenance. This not only reduces the maintenance frequency, extends the service life of the device, but also greatly improves the user experience.

[0018] The second object of the present invention is to provide a water purifier having the leakage detection mechanism as described in the above technical solution.

[0019] According to the water purifier provided by the present invention, it can accurately and efficiently identify whether it is its own leakage or external leakage flowing into it through the leakage detection mechanism. Therefore, users can carry out targeted maintenance, reducing the frequency of its own maintenance and extending its service life.

[0020] The third object of the present invention is to provide a leakage detection method, which includes:

[0021] Receiving the detection information of the internal leakage detection structure and the external leakage detection structure. Among them, the internal leakage detection structure and the external leakage detection structure are respectively installed on both sides of the water flow structure. The internal leakage detection structure is at least partially located inside the device to be detected, and the external leakage detection structure is at least partially located outside the device to be detected. Water can flow through the water flow structure to connect the internal leakage detection structure and the external leakage detection structure;

[0022] When the detection information of the received internal leakage detection structure precedes the detection information of the external leakage detection structure, or only the detection information of the internal leakage detection structure is received, it is determined that the device leaks internally, and a control instruction is sent to the alarm device, and the alarm device issues an internal leakage alarm;

[0023] When the detection information of the received external leakage detection structure precedes the detection information of the internal leakage detection structure, or only the detection information of the external leakage detection structure is received, it is determined that the device leaks externally, and a control instruction is sent to the alarm device, and the alarm device issues an external leakage alarm.

[0024] According to the leakage detection method provided by the present invention, by determining the time difference based on the sequence of the internal and external detection structures detecting water, it can accurately identify whether the device leaks or external leakage flows into the device, facilitating subsequent anti-leakage and maintenance by users, reducing the maintenance frequency, and extending the service life of the device. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 Structural schematic diagram of the water leakage detection mechanism provided by an embodiment of the present invention;

[0027] Figure 2 Schematic diagram of the installation position of the water leakage detection mechanism provided by an embodiment of the present invention on the device to be detected Figure 1 ;

[0028] Figure 3 Schematic diagram of the installation position of the water leakage detection mechanism provided by an embodiment of the present invention on the device to be detected Figure 2 ;

[0029] Figure 4 Schematic diagram of the installation position of the water leakage detection mechanism provided by an embodiment of the present invention on the device to be detected Figure 3 ;

[0030] Figure 5 Circuit schematic diagram of the water leakage detection mechanism provided by an embodiment of the present invention;

[0031] Figure 6 Structural schematic diagram of the detection device of the water leakage detection mechanism provided by an embodiment of the present invention;

[0032] Figure 7 Schematic diagram of the upper surface structure of the detection device of the water leakage detection mechanism provided by an embodiment of the present invention;

[0033] Figure 8 Schematic diagram of the lower surface structure of the detection device of the water leakage detection mechanism provided by an embodiment of the present invention.

[0034] Icon:

[0035] 100 - Detection device; 110 - Internal water leakage detection structure; 111 - First detection part; 1111 - First electrode plate; 1112 - Second electrode plate; 112 - First detection circuit; 120 - External water leakage detection structure; 121 - Second detection part; 1211 - Third electrode plate; 1212 - Fourth electrode plate; 122 - Second detection circuit; 130 - Water flow structure; 131 - Substrate; 1311 - Wiring port; 132 - Water flow hole;

[0036] 200 - Control device; 210 - Single-chip microcomputer;

[0037] 300 - Alarm device; 310 - First alarm; 320 - Second alarm;

[0038] 400 - Water purifier; 410 - Base;

[0039] 500 - First water trough;

[0040] 600 - Second water trough. Detailed implementation mode

[0041] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Embodiment 1

[0045] Combined with Figure 1 As shown, this embodiment provides a water leakage detection mechanism, which includes functional structures such as a detection device 100, a control device 200, and an alarm device 300. Different from the single water leakage detection function of the prior art, the structure of the detection device 100 is adjusted and improved in this embodiment.

[0046] Combined with Figures 6 to 8As shown in the figure, the detection device 100 of this embodiment includes an internal leakage detection structure 110, an external leakage detection structure 120, and a water flow structure 130; the internal leakage detection structure 110 and the external leakage detection structure 120 of this embodiment are respectively connected to opposite sides of the water flow structure 130, at least part of the internal leakage detection structure 110 is located inside the device to be detected, and at least part of the external leakage detection structure 120 is located outside the device to be detected; the water flow structure 130 can enable water to flow between the internal leakage detection structure 110 and the external leakage detection structure 120.

[0047] By adopting the above structure, when there is internal leakage, the water flow can be discharged outside the device through the water flow structure 130 and can be detected by the external leakage detection structure 120. In addition to the drainage function, it takes a certain amount of time for the water leaked inside the device to flow from the internal leakage detection structure 110 to the external leakage detection structure 120 in the water flow structure 130. Therefore, a time difference in the leakage information detected by the internal leakage detection structure 110 and the external leakage detection structure 120 is generated, or in other words, the leakage times detected by the two at the first time are different.

[0048] Similarly, when there is external leakage, it takes a certain amount of time for the leaked water to seep from the external leakage detection structure 120 into the internal leakage detection structure 110 in the water flow structure 130. Therefore, a time difference in the leakage information detected by the external leakage detection structure 120 and the internal leakage detection structure 110 is generated.

[0049] Based on this, the control device 200 of this embodiment is connected to the detection device 100 and determines whether there is internal leakage or external leakage of the device based on the detection information of the internal leakage detection structure 110 and the external leakage detection structure 120, or the order of detecting the water body.

[0050] Furthermore, when the control device 200 determines whether there is internal leakage or external leakage of the device and enters the device, the control device 200 sends a control instruction to the alarm device 300, and the alarm device 300 issues an internal leakage alarm or an external leakage alarm.

[0051] Next, the preferred embodiments of the above detection device 100, control device 200, and alarm device 300 of this embodiment will be described so that those skilled in the art can better understand the technical solution.

[0052] Combined with Figures 2 to 4 As shown in the figure, as a preferred embodiment of this embodiment, the above detection device 100 of this embodiment is generally installed at the bottom of the device. Taking the water purifier 400 as an example, the detection device 100 is installed at the base 410 of the water purifier 400. After the leakage detection mechanism is installed, the substrate 131 of the detection device 100 of this embodiment is preferably placed horizontally.

[0053] Correspondingly, combined withFigure 7 and 8 As shown, the water flow structure 130 of this embodiment includes a substrate 131 and a plurality of water flow holes 132 formed in the substrate 131. There is a certain gap between the bottom of the substrate 131 and the equipment installation surface or the ground to allow water to pass through. When the internal structure of the equipment leaks, the water can flow out of the equipment through the water flow holes 132, and the location of the upper leakage part can be determined through the above control device 200 and the internal and external detection structures. When there is a water leakage outside the equipment, a small amount of water can penetrate into the equipment through the water flow holes 132 and be located on the substrate 131, and the location of the water leakage can be determined without affecting the operation of the equipment.

[0054] Based on the above structure, combined with Figure 5 As shown, the internal water leakage detection structure 110 of this embodiment is correspondingly designed to include a first detection part 111 and a first detection circuit 112 installed on the upper surface of the substrate 131. The first detection part 111, the first detection circuit 112 and the control device 200 are connected in sequence.

[0055] Similarly, the external water leakage detection structure 120 of this embodiment may include a second detection part 121 and a second detection circuit 122 installed on the lower surface of the substrate 131. The second detection part 121, the second detection circuit 122 and the control device 200 are connected in sequence.

[0056] The above first detection circuit 112 and second detection circuit 122 and the substrate 131 can be directly realized through a double-sided circuit board, that is, the substrate 131, the first detection circuit 112 and the second detection circuit 122 together form a double-sided circuit board structure.

[0057] Further, as a preferred implementation manner of this embodiment, the first detection part 111 of this embodiment includes a first electrode plate 1111 and a second electrode plate 1112 arranged at intervals. Similarly, the second detection part 121 of this embodiment may include a third electrode plate 1211 and a fourth electrode plate 1212 arranged at intervals; one end of the water flow hole 132 is located within the interval between the first electrode plate 1111 and the second electrode plate 1112, and the other end is located within the interval between the third electrode plate 1211 and the fourth electrode plate 1212.

[0058] Optionally, the above first electrode plate 1111, second electrode plate 1112, third electrode plate 1211 and fourth electrode plate 1212 of this embodiment can be formed by plating copper on the upper and lower surfaces of a double-board circuit board. This structure can limit the water body within a certain interval of the first detection part 111 and the second detection part 121, which is beneficial to the detection of the water body. Moreover, once the water body passes through the copper-clad surface, the first electrode plate 1111 and the second electrode plate 1112 or the third electrode plate 1211 and the fourth electrode plate 1212 can be directly conducted, the detection circuit responds quickly, and the detection sensitivity is high.

[0059] Combined with Figure 7 and 8 As shown, as a preferred embodiment of this embodiment, the interval between the first electrode plate 1111 and the second electrode plate 1112 forms a first water channel 500, and the interval between the third electrode plate 1211 and the fourth electrode plate 1212 forms a second water channel 600.

[0060] In order to ensure the accuracy of detection, increase the water-receiving area of the first detection part 111 and the second detection part 121, and extend the residence time of water in the water channel. The first water channel 500 of this embodiment includes a plurality of first bending segments connected end to end; similarly, the first water channel 500 can include a plurality of second bending segments connected end to end, or rather, the shapes of the first water channel 500 and the second water channel 600 of this embodiment are approximately wave-shaped or meandering.

[0061] Preferably, at least part of the first bending segments and part of the second bending segments of this embodiment are symmetrically arranged with respect to the substrate 131, which can enable the water on the upper surface of the substrate 131 to directly flow into the lower surface of the substrate 131 through the water holes 132, or enable the water on the lower surface of the substrate 131 to directly overflow to the upper surface of the substrate 131 through the water holes 132, which is beneficial to the detection work.

[0062] Of course, the specific structural form of the detection device 100 of this embodiment is not limited to the above structure. For example, the water channel structure 130 can be realized by two smaller horizontal substrates 131 and a shorter pipeline (this way is not shown in the figure). The opposite ends of the pipeline are respectively connected to the two horizontal substrates 131. The above-mentioned first detection part 111 and second detection part 121 are installed on the two substrates 131. Then, one of the two substrates 131 is inside the device and the other is outside the device. Its detection principle is the same as the above structure, except that the water flow form changes from up and down flow to left and right flow.

[0063] Moreover, the first detection part 111 and the second detection part 121 of this embodiment can also be other structures. For example, the first detection part 111 includes a first humidity sensing element and its structure connected to the first detection circuit 112 (not shown in the figure), and the second detection part 121 can include a second humidity sensing element and its structure connected to the second detection circuit 122 (not shown in the figure). The first humidity sensing element and the second humidity sensing element can be humidity sensors. When the humidity reaches a certain value, the control device 200 can send an alarm instruction to the alarm device 300.

[0064] However, since the humidity sensor does not have the above-mentioned characteristics such as water storage and flow-around, and its water-receiving area is relatively small, the detection effect needs to be considered. Moreover, since the water treatment equipment is always in a humid environment, it will affect the detection accuracy of the humidity sensor. Therefore, the detection effect of this implementation method is slightly worse than the above-mentioned preferred implementation method of this embodiment.

[0065] Combined with Figure 1 and 2 As shown, as a preferred implementation method of this embodiment, the alarm device 300 of this embodiment includes a first alarm 310 and a second alarm 320. The first alarm 310 and the second alarm 320 and the control device 200 can all be set on the control panel of the water purifier itself, without additional installation space. The first alarm 310 and the second alarm 320 of this embodiment are respectively connected to the control device 200. When water leakage is detected inside the device, the first alarm 310 is turned on for alarm, and the second alarm 320 is turned off. When water leakage is detected inside the device, the second alarm 320 is turned on for alarm, and the first alarm 310 is turned off. Specifically, the first alarm 310 and the second alarm 320 of this embodiment can be warning lights with different colors.

[0066] Of course, the structural form of the alarm device 300 in this embodiment is not limited to this. For example, the alarm device 300 includes an external terminal (such as a mobile phone), and the external terminal is wirelessly connected to the control device 200 through Bluetooth or WIFI, etc. When a water leakage situation occurs, alarm display can be realized through a terminal such as a mobile phone.

[0067] As a preferred implementation method of this embodiment, the control device 200 of this embodiment includes a single-chip microcomputer 210 (MCU) control circuit with mature technology and stable functions. Its connection method with the first detection unit 111 and the second detection unit 121 can be the circuit connection shown in the figure, that is, two wire insertion ports 1311 are directly set on the substrate 131, one end of the circuit is connected to the wire insertion port 1311, and the other end is connected to the control device 200. The specific circuit method of the control device 200 in this embodiment is as Figure 5 shown.

[0068] According to the above-mentioned water leakage detection mechanism provided by this embodiment, through the water flow structure 130, the water body can flow between the internal water leakage detection structure 110 and the external water leakage detection structure 120. Since it takes a certain amount of time for the water to flow through the flow path, the control device 200 determines whether the internal water leakage flows to the outside or the external water leakage flows to the inside by judging the time difference between the internal water leakage detection structure 110 and the external water leakage detection structure 120 detecting the water body. Therefore, it can accurately and efficiently identify whether the water leakage is inside or outside the device, and users can perform targeted maintenance, which not only reduces the maintenance frequency, extends the service life of the device, but also greatly improves the user experience.

[0069] Embodiment 2

[0070] Based on Embodiment 1, this embodiment provides a water purifier 400, which has the above-mentioned water leakage detection mechanism.

[0071] Combined with Figure 2 As shown, the water purifier 400 of this embodiment includes a base 410. The detection device 100 of the water leakage detection mechanism is installed on the base 410, and at least part of the external water leakage detection structure 120 of the detection device 100 passes through the opening of the base 410, so that the water body below the base 410 can enter the internal water leakage detection structure 110 through the external water leakage detection structure 120. Since the improvement of the water purifier 400 in this embodiment lies only in the water leakage detection mechanism and the opening of the base 410, other structures of the water purifier 400 are not described and illustrated in this embodiment.

[0072] According to the water purifier 400 provided in this embodiment, it can accurately and efficiently identify whether it is its own water leakage or external water leakage flowing into it through the water leakage detection mechanism. Therefore, it enables users to perform targeted maintenance, reduces its own maintenance frequency, and extends its own service life.

[0073] Embodiment 3

[0074] Based on Embodiment 1 and Embodiment 2, this embodiment of the present invention provides a water leakage detection method, which includes:

[0075] Receiving the detection information of the internal water leakage detection structure 110 and the external water leakage detection structure 120. Among them, the internal water leakage detection structure 110 and the external water leakage detection structure 120 are respectively installed on both sides of the water flow structure 130. At least part of the internal water leakage detection structure 110 is located inside the device to be detected, and at least part of the external water leakage detection structure 120 is located outside the device to be detected. The water body can be communicated between the internal water leakage detection structure 110 and the external water leakage detection structure 120 through the water flow structure 130.

[0076] When the detection information of the internal water leakage detection structure 110 received is prior to the detection information of the external water leakage detection structure 120, or only the detection information of the internal water leakage detection structure 110 is received, it is determined that the device leaks internally, and a control instruction is sent to the alarm device 300, and the alarm device 300 issues an internal water leakage alarm.

[0077] When the detection information of the external water leakage detection structure 120 received is prior to the detection information of the internal water leakage detection structure 110, or only the detection information of the external water leakage detection structure 120 is received, it is determined that the device leaks externally, and a control instruction is sent to the alarm device 300, and the alarm device 300 issues an external water leakage alarm.

[0078] Due to the uncertainty of the water leakage volume and the water leakage direction, correspondingly, the detection and judgment methods in this embodiment are also diversified. The following will make a detailed description of the preferred implementation manner of the above-mentioned water leakage detection method in this embodiment in combination with the circuit structure in Figure 5 . In the figure, VCC is the power supply voltage of the circuit, R111 - R116 are resistors, and GND is the wire grounding end.

[0079] The first case: When water leaks inside the water treatment device such as the water purifier 400, the water flow first passes through the upper surface of the detection device 100. After the first electrode plate 1111 on the upper surface is conducted with the second electrode plate 1112, the detection circuit forms a loop. The single-chip microcomputer 210 port of the control device 200 detects the voltage through the resistor R112. The lower surface is dry and there is no signal, so it is directly determined that there is internal water leakage, and the single-chip microcomputer 210 controls the warning light of the first alarm 310 to light up.

[0080] The second case: When water leaks inside the water purifier 400, the water flow first passes through the upper surface of the detection device 100. After the first electrode plate 1111 on the upper surface is conducted with the second electrode plate 1112, the detection circuit forms a loop. The single-chip microcomputer 210 port of the control device 200 detects the voltage through the resistor R112, then it is considered that there is water leakage on the upper surface. Since there is a process for the water to leak from inside the machine to outside the machine, it takes a certain amount of time when water leakage is detected on the lower surface. The single-chip microcomputer 210 on the control device 200 determines the order of the detection signals (the upper surface is detected first, and the lower surface is detected later), then it is determined that there is internal water leakage, and the single-chip microcomputer 210 lights up the warning light of the first alarm 310.

[0081] The third case: When water leaks outside the water purifier 400, the water flow first passes through the lower surface of the detection device 100. After the third electrode plate 1211 on the lower surface is conducted with the probe of the fourth electrode plate 1212, the detection circuit forms a loop. The single-chip microcomputer 210 port of the control device 200 detects the voltage through the resistor R114. The upper surface is dry and there is no signal, so it is directly determined that there is external water leakage, and the single-chip microcomputer 210 controls the warning light of the second alarm 320 to light up.

[0082] The fourth case: When water leaks outside the water purifier 400, the water flow first passes through the lower surface of the detection device 100. After the third electrode plate 1211 on the lower surface is conducted with the probe of the fourth electrode plate 1212, the detection circuit forms a loop. The single-chip microcomputer 210 port of the control device 200 detects the voltage through the resistor R114. The water overflows to the upper surface through the drain hole. The single-chip microcomputer 210 on the control device 200 determines the order of the detection signals (the lower surface is detected first, and the upper surface is detected later), then it is determined that there is external water leakage, and the single-chip microcomputer 210 controls the warning light of the second alarm 320 to light up.

[0083] According to the above water leakage detection method provided by this embodiment, by determining the time difference based on the sequence of detecting water bodies by the internal and external detection structures, it is possible to accurately identify whether it is the device that leaks water or external water leaks into the device, which is convenient for subsequent anti-leakage and maintenance processing by users, reduces the maintenance frequency, and extends the service life of the device.

[0084] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water leakage detection mechanism, characterized in that, Comprising: A detection device (100), the detection device (100) includes an internal water leakage detection structure (110), an external water leakage detection structure (120) and a water flow structure (130); the internal water leakage detection structure (110) and the external water leakage detection structure (120) are respectively connected to opposite sides of the water flow structure (130), at least part of the internal water leakage detection structure (110) is located inside the device to be detected, and at least part of the external water leakage detection structure (120) is located outside the device to be detected; the water flow structure (130) enables water to flow between the internal water leakage detection structure (110) and the external water leakage detection structure (120); A control device (200), the control device (200) is connected to the detection device (100), and based on the detection information of the internal water leakage detection structure (110) and the external water leakage detection structure (120), or the order of detecting water, determines whether there is internal water leakage or external water leakage of the device, and determines whether it is internal water leakage flowing to the outside or external water leakage flowing to the inside by judging the time difference of detecting water by the internal water leakage detection structure and the external water leakage detection structure through the control device; An alarm device (300), the alarm device (300) is connected to the control device (200), and is used to issue an internal water leakage alarm or an external water leakage alarm; The water flow structure (130) includes a substrate (131) and a water flow hole (132) opened on the substrate (131); The internal water leakage detection structure (110) includes a first detection part (111) and a first detection circuit (112), both the first detection part (111) and the first detection circuit (112) are installed on the upper surface of the substrate (131), and the first detection part (111), the first detection circuit (112) and the control device (200) are connected in sequence; The external water leakage detection structure (120) includes a second detection part (121) and a second detection circuit (122), both the second detection part (121) and the second detection circuit (122) are installed on the lower surface of the substrate (131), and the second detection part (121), the second detection circuit (122) and the control device (200) are connected in sequence; The first detection part (111) includes a first electrode plate (1111) and a second electrode plate (1112) arranged at intervals, and the second detection part (121) includes a third electrode plate (1211) and a fourth electrode plate (1212) arranged at intervals; One end of the water flow hole (132) is located within the interval between the first electrode plate (1111) and the second electrode plate (1112), and the other end is located within the interval between the third electrode plate (1211) and the fourth electrode plate (1212); The first electrode plate (1111), the second electrode plate (1112), the third electrode plate (1211) and the fourth electrode plate (1212) are formed by copper plating on the upper and lower surfaces of a double-layer circuit board.

2. The water leakage detection mechanism according to claim 1, characterized in that, A gap between the first electrode plate (1111) and the second electrode plate (1112) forms a first water channel (500), and a gap between the third electrode plate (1211) and the fourth electrode plate (1212) forms a second water channel (600); The first water channel (500) includes a plurality of first bending segments connected end to end; and / or, the second water channel (600) includes a plurality of second bending segments connected end to end.

3. The water leakage detection mechanism according to claim 2, characterized in that, When the first water channel (500) includes a plurality of first bending segments connected end to end and the second water channel (600) includes a plurality of second bending segments connected end to end, at least a part of the first bending segments and at least a part of the second bending segments are symmetrically arranged with respect to the substrate (131).

4. The water leakage detection mechanism according to claim 1, characterized in that The first detection unit (111) includes a first humidity sensing element, and / or, the second detection unit (121) includes a second humidity sensing element.

5. The water leakage detection mechanism according to any one of claims 1 to 4, characterized in that, The alarm device (300) includes a first alarm (310) and a second alarm (320), and the first alarm (310) and the second alarm (320) are respectively connected to the control device (200).

6. The water leakage detection mechanism according to any one of claims 1-4, characterized in that, The alarm device (300) includes an external terminal, and the external terminal is wirelessly connected to the control device (200).

7. A water purifier, characterized in that, It includes a water leakage detection mechanism according to any one of claims 1-6.

8. A leak detection method, characterized in that, Adopting the water leakage detection mechanism according to any one of claims 1-6, it includes: Receiving the detection information of the internal water leakage detection structure and the external water leakage detection structure, wherein the internal water leakage detection structure and the external water leakage detection structure are respectively installed on both sides of the water flow structure, at least a part of the internal water leakage detection structure is located inside the device to be detected, at least a part of the external water leakage detection structure is located outside the device to be detected, and water can communicate between the internal water leakage detection structure and the external water leakage detection structure through the water flow structure; When the detection information of the internal water leakage detection structure is received earlier than the detection information of the external water leakage detection structure, or only the detection information of the internal water leakage detection structure is received, it is determined that the device leaks internally, and a control instruction is sent to the alarm device, and the alarm device issues an internal water leakage alarm; When the detection information of the external water leakage detection structure is received earlier than the detection information of the internal water leakage detection structure, or only the detection information of the external water leakage detection structure is received, it is determined that the device leaks externally, and a control instruction is sent to the alarm device, and the alarm device issues an external water leakage alarm.

Images