Ultraviolet lamp and water inlet detection structure thereof

Abstract

The utility model relates to an ultraviolet lamp and a water inflow detection structure thereof. The water inflow detection structure comprises an ultraviolet lamp pin metal layer, a controller and a power supply control module, the ultraviolet lamp pin metal layer is connected with the input end of the controller, the output end of the controller is connected with the input end of the power supply control module, and the output end of the power supply control module is connected with the power supply end of the ultraviolet lamp; wherein the ultraviolet lamp tube pin metal layer is arranged around the periphery of a lamp panel of the ultraviolet lamp, and a clearance space is formed between the ultraviolet lamp tube pin metal layer and the ultraviolet lamp; compared with the prior art, according to the technical scheme, water inlet detection of the ultraviolet lamp can be achieved, and the failure rate of the ultraviolet lamp is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent cleaning equipment, and in particular to a UV lamp and a water inlet detection structure thereof. BACKGROUND

[0002] With the development of technology, pool cleaning robots as a kind of intelligent equipment have been widely used in automatic cleaning of swimming pools. Such equipment is usually composed of a shell and a built-in filter assembly, and is equipped with a water inlet and a water outlet on the shell; its basic working principle is to suck water in the pool through the water inlet, filter the water through the filter assembly, and then discharge the filtered water back to the pool through the water outlet; in order to improve the functionality and efficiency of the pool cleaning robot, continuous innovation and improvement are made in technology, one of which is to integrate UV lamp technology into the pool cleaning robot to achieve the sterilization function of the water body.

[0003] However, in the process of applying UV lamp technology to pool cleaning robots, since the equipment needs to perform water suction and discharge operations in underwater environment, it is inevitable to encounter the problem of water inlet of the UV lamp.

[0004] If the UV lamp remains on after water inlet, long-term exposure to water may cause the internal light source to gradually fade due to corrosion, resulting in damage; in addition, if the water inlet amount is too large, it will also cause the problem of burning of the UV lamp. INVENTION CONTENTS

[0005] The present application provides a UV lamp and a water inlet detection structure thereof, which can realize water inlet detection of the UV lamp and reduce the failure rate of the UV lamp.

[0006] In a first aspect, the present application provides a water inlet detection structure of a UV lamp, comprising: a UV lamp pin metal layer, a controller and a power control module; the UV lamp pin metal layer is connected with the input end of the controller, the output end of the controller is connected with the input end of the power control module, and the output end of the power control module is connected with the power supply end of the UV lamp; wherein the UV lamp pin metal layer is arranged around the periphery of the lamp panel of the UV lamp, and a gap space is arranged between the UV lamp pin metal layer and the UV lamp.

[0007] In a possible implementation manner, the UV lamp pin metal layer comprises a UV lamp pin copper sheet.

[0008] In a possible implementation manner, a UV lamp power metal layer is arranged on the lamp panel of the UV lamp; and a gap space is arranged between the UV lamp pin metal layer and the UV lamp power metal layer.

[0009] In one possible implementation, the first side of the ultraviolet lamp pin metal layer is adjacent to the first side of the ultraviolet lamp power supply metal layer; the first side of the ultraviolet lamp pin metal layer and the first side of the ultraviolet lamp power supply metal layer are configured with 360-degree openings.

[0010] In one possible implementation, the ultraviolet lamp pin metal layer is connected to the input terminal of the controller via a signal line; wherein, when water droplets are present in the gap space and the ultraviolet lamp pin metal layer is electrically connected to the ultraviolet lamp power supply metal layer, the ultraviolet lamp pin metal layer sends a water inlet signal to the controller via the signal line.

[0011] In one possible implementation, the water ingress detection structure for an ultraviolet lamp provided in this application further includes: a clamping circuit; wherein the clamping circuit is disposed between the metal layer of the ultraviolet lamp pins and the controller; the circuit input terminal of the clamping circuit is connected to the metal layer of the ultraviolet lamp pins, and the circuit output terminal of the clamping circuit is connected to the input terminal of the controller.

[0012] In one possible implementation, the clamping circuit includes a first resistor, a second resistor, a first diode, and a second diode; wherein the circuit input terminal of the clamping circuit is connected to the first terminal of the first resistor, and the circuit output terminal of the clamping circuit is connected to the second terminal of the first resistor, the first terminal of the second resistor, the cathode of the first diode, and the anode of the second diode, respectively; the second terminal of the second resistor is grounded, the cathode of the second diode is grounded, and the anode of the first diode is connected to the power input terminal.

[0013] In one possible implementation, the power control module includes an LED enable signal input terminal, a control chip, a field-effect transistor (FET), a current sensing resistor, a current filtering unit, and a UV lamp board power output terminal; wherein, the LED enable signal input terminal is connected to the enable pin of the control chip, the external MOS transistor drive pin of the control chip is connected to the gate of the FET, the boost current feedback pin of the control chip is connected to the source of the FET, the drain of the FET is connected to the first terminal of the current filtering unit, the second terminal of the current filtering unit is connected to the first terminal of the current sensing resistor, and the second terminal of the current sensing resistor is connected to the UV lamp board power output terminal.

[0014] Secondly, this application also provides an ultraviolet lamp, including a water ingress detection structure for the ultraviolet lamp as described in any of the above claims.

[0015] Thirdly, this application also provides a pool cleaning robot, including the ultraviolet lamp as described above.

[0016] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:

[0017] The water inlet detection structure of the ultraviolet lamp provided by the embodiments of the present application comprises an ultraviolet lamp pin metal layer, a controller and a power control module. The ultraviolet lamp pin metal layer is connected with the input end of the controller, the output end of the controller is connected with the input end of the power control module, and the output end of the power control module is connected with the power supply end of the ultraviolet lamp. The ultraviolet lamp pin metal layer is arranged around the periphery of the lamp panel of the ultraviolet lamp, and a gap space is arranged between the ultraviolet lamp pin metal layer and the ultraviolet lamp. Compared with the prior art, the technical solutions of the present application arrange the ultraviolet lamp pin metal layer around the periphery of the lamp panel. When water inlet occurs, no matter which direction the water contacts the lamp panel, as a conductive medium, the ultraviolet lamp pin metal layer will be electrified, and then based on the direct connection relationship between the ultraviolet lamp pin metal layer and the controller, the water inlet signal is transmitted to the controller. This kind of arrangement greatly improves the comprehensiveness and accuracy of water inlet detection, and can avoid the situation of missed detection caused by different water inlet positions. Moreover, based on the connection relationship between the controller, the power control module and the power supply end of the ultraviolet lamp, it can ensure that the ultraviolet lamp can stop working in the water inlet state, can prevent the ultraviolet lamp from being damaged due to water inlet, realizes the protection of the ultraviolet lamp panel, and reduces the failure rate of the ultraviolet lamp. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate one embodiment consistent with the present application and, together with the description, serve to explain the principles of the application.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0020] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings, which do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings in the drawings do not constitute a proportional limitation.

[0021] Figure 1 The structural schematic diagram of the water inlet detection structure of the ultraviolet lamp provided by the embodiments of the present application;

[0022] Figure 2 The structural schematic diagram of the water inlet detection structure of the ultraviolet lamp provided by the embodiments of the present application;

[0023] Figure 3 A water inlet principle schematic diagram of the ultraviolet lamp provided for the implementation of the present application;

[0024] Figure 4 Another structural schematic diagram of a water inlet detection structure of the ultraviolet lamp provided for the implementation of the present application;

[0025] Figure 5 A clamping circuit schematic diagram provided for the implementation of the present application;

[0026] Figure 6 A circuit structure schematic diagram of the power supply control module provided for the implementation of the present application;

[0027] Figure 7 A structural schematic diagram of the ultraviolet lamp provided for the implementation of the present application;

[0028] Figure 8 A structural schematic diagram of the pool cleaning robot provided for the implementation of the present application. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0030] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplifying the present application, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and it does not indicate the relationship between the various embodiments and / or settings discussed.

[0031] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0032] Example 1, see Figure 1 , Figure 1 This is a schematic diagram of a water ingress detection structure for an ultraviolet lamp provided in an embodiment of this application; as shown. Figure 1 As shown, the water ingress detection structure of the ultraviolet lamp includes: a metal layer 101 for the ultraviolet lamp tube pins, a controller 102, and a power control module 103, as detailed below:

[0033] The metal layer 101 of the ultraviolet lamp tube is connected to the input terminal of the controller 102, the output terminal of the controller 102 is connected to the input terminal of the power control module 103, and the output terminal of the power control module 103 is connected to the power terminal of the ultraviolet lamp 104.

[0034] The ultraviolet lamp base metal layer 101 is arranged around the outer periphery of the ultraviolet lamp 104, and a gap space is provided between the ultraviolet lamp base metal layer 101 and the ultraviolet lamp 104.

[0035] In one embodiment, the ultraviolet lamp pin metal layer 101 includes ultraviolet lamp pin copper foil, and the ultraviolet lamp pin copper foil is signal copper foil.

[0036] Specifically, the copper foil of the ultraviolet lamp tube pins surrounds the ultraviolet lamp board 104 360 degrees.

[0037] In one embodiment, an ultraviolet lamp power supply metal layer 105 is provided on the lamp plate of the ultraviolet lamp 104.

[0038] Specifically, the ultraviolet lamp power supply metal layer 105 is an ultraviolet lamp power supply copper sheet.

[0039] In an embodiment, the first side of the ultraviolet lamp pin metal layer 101 is adjacent to the first side of the ultraviolet lamp power supply metal layer 105; the first side of the ultraviolet lamp pin metal layer 101 and the first side of the ultraviolet lamp power supply metal layer 105 are provided with a 360-degree window.

[0040] Specifically, the adjacent relationship between the first side of the ultraviolet lamp pin metal layer 101 and the first side of the ultraviolet lamp power supply metal layer 105 specifically refers to the side of the ultraviolet lamp pin metal layer 101 and the ultraviolet lamp power supply metal layer 105 that are close to each other.

[0041] Specifically, the windowing refers to removing the solder mask layer on the PCB to expose the copper foil; the purpose of this is to increase the current conduction capacity and heat dissipation.

[0042] Specifically, the first side of the ultraviolet lamp pin metal layer 101 and the first side of the ultraviolet lamp power supply metal layer 105, i.e. the part of the ultraviolet lamp pin metal layer 101 and the ultraviolet lamp power supply metal layer 105 that are close to each other, are provided with a 360-degree windowing treatment; this means that the solder mask layer is completely removed in this area, and the copper foil is completely exposed; this treatment can ensure good electrical connection and heat dissipation between the ultraviolet lamp pin metal layer 101 and the ultraviolet lamp power supply metal layer 105.

[0043] In an embodiment, the ultraviolet lamp pin metal layer 101 and the ultraviolet lamp power supply metal layer 105 are in an electrically isolated state; and based on the electrical isolation, there is a gap space between the ultraviolet lamp pin metal layer 101 and the ultraviolet lamp power supply metal layer 105.

[0044] This is because in PCB design, the copper skin of the signal layer is usually connected to the power supply or ground to ensure the integrity and stability of the signal; if the signal copper skin and the power supply copper skin are in contact, it may cause short circuit or signal interference, affecting the accurate transmission of the signal and the stable supply of the power supply.

[0045] As shown in Figure 2 , the structure schematic diagram of the ultraviolet lamp plate provided by the present application is shown in Figure 2 .

[0046] In an embodiment, the ultraviolet lamp pin metal layer 101 is connected to the input end of the controller 102 based on a signal line; when there is water droplet in the gap space and the ultraviolet lamp pin metal layer 101 is electrically connected to the ultraviolet lamp power supply metal layer 105, the ultraviolet lamp pin metal layer 101 sends a water inlet signal to the controller 102 through the signal line.

[0047] As shown in 3,Figure 3 The water inlet principle schematic diagram of the ultraviolet lamp provided by the embodiment of the present application.

[0048] Specifically, when the water droplet enters the ultraviolet lamp, the water droplet connects the ultraviolet lamp pin metal layer 101 and the ultraviolet lamp power supply metal layer 105, which is equivalent to adding a resistor between the ultraviolet lamp pin metal layer 101 and the ultraviolet lamp power supply metal layer 105. At this time, the ultraviolet lamp power supply metal layer 105 transmits electricity to the ultraviolet lamp pin metal layer 101, so that the ultraviolet lamp pin metal layer 101 is electrified, that is, there is an electrical connection between the ultraviolet lamp pin metal layer 101 and the power supply of the ultraviolet lamp. At this time, the electrified ultraviolet lamp pin metal layer 101 generates a water inlet signal.

[0049] Specifically, the electrified ultraviolet lamp pin metal layer 101 is connected to the controller 102 based on a signal line, so that the controller 102 can receive the water inlet signal sent by the ultraviolet lamp pin metal layer 101.

[0050] Preferably, in addition to being directly connected to the controller 102 through a signal line, the ultraviolet lamp pin metal layer 101 can also be indirectly connected to the controller 102 through a transmission module to realize the transmission of the water inlet signal.

[0051] Preferably, the transmission module can be a first terminal on the lamp panel of the ultraviolet lamp and a second terminal on the control panel on which the controller 102 is installed; and the first terminal and the second terminal are also connected based on a signal line; at this time, the ultraviolet lamp pin metal layer 101 is connected to the pin of the first terminal based on a signal line and sends the generated water inlet signal to the first terminal, so that after the first terminal receives the water inlet signal, it transmits the water inlet signal to the second terminal through the signal line, and sends the water inlet signal to the controller 102 based on the signal line between the second terminal and the controller 102.

[0052] In an embodiment, since the water inlet signal may have excessive voltage, if the water inlet signal is directly sent to the controller 102 for processing, there may be a risk of burning out the controller 102. Therefore, in the embodiment, a clamping circuit 106 is additionally arranged between the ultraviolet lamp pin metal layer 101 and the controller 102.

[0053] As shown in Figure 4 , the water inlet detection structure of the ultraviolet lamp provided by the embodiment of the present application is another structural schematic diagram. Figure 4 The water inlet detection structure of the ultraviolet lamp provided by the embodiment of the present application is another structural schematic diagram.

[0054] Specifically, the clamping circuit 106 is arranged between the ultraviolet lamp pin metal layer 101 and the controller 102.

[0055] Specifically, the circuit input end of the clamping circuit 106 is connected with the ultraviolet lamp pin metal layer 101, and the circuit output end of the clamping circuit 106 is connected with the input end of the controller 102.

[0056] Specifically, the clamping circuit 106 is used for clamping the voltage of the water inlet signal output by the ultraviolet lamp pin metal layer 101 to a proper voltage and then transmitting the voltage to the controller 102.

[0057] As shown in Figure 5 , Figure 5 the clamping circuit schematic diagram provided by the embodiment of the present application.

[0058] In an embodiment, the clamping circuit 106 includes a first resistor, a second resistor, a first diode and a second diode.

[0059] Specifically, the circuit input end of the clamping circuit 106 is connected with the first end of the first resistor, and the circuit output end of the clamping circuit 106 is respectively connected with the second end of the first resistor, the first end of the second resistor, the negative electrode of the first diode and the positive electrode of the second diode; the second end of the second resistor is grounded, the negative electrode of the second diode is grounded, and the positive electrode of the first diode is connected with the power input end.

[0060] In an embodiment, the controller 102 is used for sending an enable control signal to the power control module 103.

[0061] Specifically, after the related pin in the controller 102 receives the water inlet signal, the controller 102 sends an enable control signal to the power control module 103 based on the connection relationship with the power control module 103, and when the enable control signal is a stop enable signal, the power control module 103 is controlled to be closed based on the stop enable signal.

[0062] In an embodiment, the power control module 103 is used for receiving the enable control signal, and when the enable control signal is a stop enable signal, the power output end of the power control module 103 stops supplying power to the ultraviolet lamp 104.

[0063] As shown in Figure 6 , Figure 6 the circuit structure schematic diagram of the power control module provided by the embodiment of the present application.

[0064] In an embodiment, the power control module 103 comprises an LED enable signal input end, a control chip, a field effect tube, a current detection resistor, a current filtering unit, a current detection resistor, and an ultraviolet lamp panel power output end; wherein the LED enable signal input end is connected with an enable pin of the control chip, an external MOS tube driving pin of the control chip is connected with a gate of the field effect tube, a current feedback pin of a boost part of the control chip is connected with a source of the field effect tube, a drain of the field effect tube is connected with a first end of the current filtering unit, a second end of the current filtering unit is connected with a first end of the current detection resistor, and a second end of the current detection resistor is connected with the ultraviolet lamp panel power output end.

[0065] Preferably, the LED enable signal input end is a signal input end of the power control module 103, and the ultraviolet lamp panel power output end is a power output end of the power control module 103.

[0066] Specifically, the control chip is RT5452, wherein the control chip comprises 17 chip pins, including a first pin GBIAS, a second pin GATE, a third pin PWMOUT, a fourth pin ISW, a fifth pin PWMDIM, a sixth pin ISP, a seventh pin ISN, an eighth pin VC, a ninth pin ACTL, a tenth pin DCTL, an eleventh pin SS, a twelfth pin NC, a thirteenth pin EN, a fourteenth pin OVP, a fifteenth pin VCC, a sixteenth pin GND, and a seventeenth pin EPAD.

[0067] Preferably, the enable pin of the control chip is the thirteenth pin EN, the external MOS tube driving pin of the control chip is the second pin GATE, and the current feedback pin of the boost part of the control chip is the fourth pin ISW.

[0068] Specifically, the current filtering unit is composed of five parallel filtering capacitors.

[0069] In an embodiment, the power control module 103 further comprises a diode D379, a resistor R559, a capacitor C1468, a resistor R560, and a bidirectional breakdown diode D390.

[0070] Specifically, the LED enable signal input end LED1_EN is connected with the anode of a diode D379, the cathode of the diode D379 is connected with the first end of a resistor R559, the second end of the resistor R559 is connected with the first end of a capacitor C1468, the first end of a resistor R560, the first end of a bidirectional breakdown diode D390 and the enable pin of the control chip respectively, the second end of the capacitor C1468, the second end of the resistor R560 and the second end of the bidirectional breakdown diode D390 are grounded respectively.

[0071] In an embodiment, the power control module 103 further comprises a PWM signal input end and a resistor R571.

[0072] Specifically, the PWM signal input end is connected with the first end of the resistor R571 and the tenth pin DCTL respectively, and the second end of the resistor R571 is grounded.

[0073] In an embodiment, the power control module 103 further comprises a capacitor C12, a capacitor C13, a capacitor C1450 and a resistor R558.

[0074] Specifically, the first end of the capacitor C12 is connected with the eleventh pin SS, and the second end of the capacitor C12 is grounded; the first end of the capacitor C13 is connected with the first pin GB IAS, and the second end of the capacitor C13 is grounded; the first end of the capacitor C1450 is connected with the ninth pin ACTL, and the second end of the capacitor C1450 is grounded; the first end of the resistor R558 is connected with the fifth pin PWMD I M down, and the second end of the resistor R558 is connected with the 3.3V power input end.

[0075] In an embodiment, the power control module 103 further comprises a 24V power input end ultraviolet lamp C-VCC24V, a fuse F10, a capacitor C1452, a capacitor C1476, a capacitor C8, a capacitor C1453, an inductor L11 and a voltage stabilizing diode D389.

[0076] Specifically, the 24V power input end ultraviolet lamp C-VCC24V is connected with the first end of the fuse F10, the second end of the fuse F10 is connected with the first end of the capacitor C1453, the fifteenth pin VCC and the first end of the capacitor C1452, the first end of the capacitor C1476, the first end of the capacitor C8 and the first end of the inductor L11 respectively, the second end of the capacitor C1453, the second end of the capacitor C1452, the second end of the capacitor C1476, the second end of the capacitor C8 are grounded respectively; the second end of the inductor L11 is connected with the first end of the voltage stabilizing diode D389, the second end of the voltage stabilizing diode D389 is connected with the first end of the capacitor C62, the first end of the capacitor C63, the first end of the capacitor C64, the first end of the capacitor C1451, the first end of the capacitor C1477 and the first end of the current detection resistor R16 in the current filtering module respectively, the second end of the capacitor C62, the second end of the capacitor C63, the second end of the capacitor C64, the second end of the capacitor C1451, the second end of the capacitor C1477 are grounded respectively.

[0077] In an embodiment, the power control module 103 further comprises the capacitor C1472, the capacitor C1473, the resistor R17 and the resistor R18.

[0078] Specifically, the sixth pin IS P is connected with the first end of the current detection resistor R16, the second end of the current detection resistor R16 is connected with the first end of the resistor R17, the seventh pin IS N and the power end of the ultraviolet lamp plate respectively; the fourteenth pin OVP is connected with the second end of the resistor R17 and the first end of the resistor R18 respectively, the second end of the resistor R18 is grounded; the power end of the ultraviolet lamp plate is further connected with the first end of the capacitor C1472 and the first end of the capacitor C1473 respectively, the second end of the capacitor C1472 and the second end of the capacitor C1473 are grounded respectively.

[0079] In an embodiment, the power control module 103 further comprises the resistor R15 and the resistor R557 and the diode D5.

[0080] Specifically, the fourth pin IS W is connected with the first end of the resistor R15 and the first end of the resistor R557 respectively, the second end of the resistor R15 and the second end of the resistor R557 are grounded; the fourth pin IS W is further connected with the source electrode of the field effect tube, the drain electrode of the field effect tube is connected with the first end of the voltage stabilizing diode D389, the drain electrode of the field effect tube is connected with the negative electrode of the diode D5, the source electrode of the field effect tube is connected with the positive electrode of the diode D5.

[0081] Specifically, after the power control module 103 receives the stop enable signal, the power control module 103 stops working, that is, the power control module 103 stops working, at this time, the power output end of the power control module 103 no longer supplies power to the power supply pin input end of the ultraviolet lamp 104, causing the power supply of the ultraviolet lamp 104 to be disconnected, realizing the water detection of the ultraviolet lamp, and further reducing the failure rate of the ultraviolet lamp.

[0082] Embodiment 2, see Figure 7 , Figure 7 A structure diagram of an ultraviolet lamp provided by the embodiment of the present application is shown in the figure. Figure 7 As shown in the figure, the ultraviolet lamp includes the water detection structure 10 of the ultraviolet lamp 104 described in embodiment 1.

[0083] Embodiment 3, see Figure 8 , Figure 8 A pool cleaning robot provided by the embodiment of the present application is shown in the figure. Figure 8 As shown in the figure, the pool cleaning robot 1 includes the ultraviolet lamp 104 described in embodiment 2.

[0084] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0085] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0086] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0087] In the present application, unless specifically defined otherwise, the terms "mount", "connected", "connecting", "fixed", "linking", and the like should be construed broadly and can include various forms of connections, such as connection and detachable connection, or integral connection; mechanical connection, or electrical connection; direct connection, or indirect connection via an intermediate medium; internal communication between two elements, or interaction between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

[0088] In the present application, unless specifically defined otherwise, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of a first feature to a second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Under", "below" and "under" of a first feature to a second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0089] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0090] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, any modifications and variations of the present application within the scope of the claims of the present application and their equivalents are intended to be included in the present application.

[0091] The above is a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An inlet water detection structure of an ultraviolet lamp, characterized by comprising: include: Ultraviolet lamp pin metal layer, controller and power control module; The metal layer of the ultraviolet lamp tube pin is connected to the input terminal of the controller, the output terminal of the controller is connected to the input terminal of the power control module, and the output terminal of the power control module is connected to the power terminal of the ultraviolet lamp. The ultraviolet lamp base metal layer is arranged around the outer periphery of the ultraviolet lamp plate, and a gap space is provided between the ultraviolet lamp base metal layer and the ultraviolet lamp.

2. The water intrusion detection structure for an ultraviolet lamp of claim 1, wherein, The ultraviolet lamp pin metal layer includes the ultraviolet lamp pin copper foil.

3. The water intrusion detection structure for an ultraviolet lamp of claim 1, wherein, The lamp plate of the ultraviolet lamp is provided with an ultraviolet lamp power supply metal layer; A gap is provided between the metal layer of the ultraviolet lamp tube and the metal layer of the ultraviolet lamp power supply.

4. The water intrusion detection structure for an ultraviolet lamp of claim 3, wherein, The first side of the ultraviolet lamp tube pin metal layer is adjacent to the first side of the ultraviolet lamp power supply metal layer; The first side of the ultraviolet lamp tube foot metal layer and the first side of the ultraviolet lamp power supply metal layer are provided with 360-degree openings.

5. The water intrusion detection structure for an ultraviolet lamp of claim 3, wherein, The ultraviolet lamp pin metal layer is connected to the input terminal of the controller via a signal line; When water droplets are present in the gap space and the ultraviolet lamp pin metal layer is electrically connected to the ultraviolet lamp power supply metal layer, the ultraviolet lamp pin metal layer sends a water inlet signal to the controller through the signal line.

6. The water intrusion detection structure for an ultraviolet lamp of claim 1, wherein Also includes: Clamping circuit; The clamping circuit is located between the metal layer of the ultraviolet lamp pin and the controller. The input terminal of the clamping circuit is connected to the metal layer of the ultraviolet lamp pin, and the output terminal of the clamping circuit is connected to the input terminal of the controller.

7. The water ingress detection structure for an ultraviolet lamp according to claim 6, wherein The clamping circuit includes a first resistor, a second resistor, a first diode, and a second diode; The input terminal of the clamping circuit is connected to the first terminal of the first resistor, and the output terminal of the clamping circuit is connected to the second terminal of the first resistor, the first terminal of the second resistor, the negative terminal of the first diode, and the positive terminal of the second diode, respectively. The second end of the second resistor is grounded, the negative terminal of the second diode is grounded, and the positive terminal of the first diode is connected to the power input terminal.

8. The water intrusion detection structure for an ultraviolet lamp of claim 1, wherein, The power control module includes an LED enable signal input terminal, a control chip, a field-effect transistor, a current sensing resistor, a current filtering unit, a current sensing resistor, and a power output terminal for the ultraviolet lamp board. The LED enable signal input terminal is connected to the enable pin of the control chip, the external MOS transistor drive pin of the control chip is connected to the gate of the field-effect transistor, the boost current feedback pin of the control chip is connected to the source of the field-effect transistor, the drain of the field-effect transistor is connected to the first terminal of the current filtering unit, the second terminal of the current filtering unit is connected to the first terminal of the current sensing resistor, and the second terminal of the current sensing resistor is connected to the power output terminal of the ultraviolet lamp board.

9. An ultraviolet lamp characterized by The water ingress detection structure includes the ultraviolet lamp as described in any one of claims 1-8.

10. A swimming pool cleaning robot characterized by, Including the ultraviolet lamp as described in claim 9.

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