Sterilization device and water heater

Abstract

The utility model discloses a sterilization device and a water heater, and relates to the technical field of water heaters. The sterilization device comprises a shell, a water outlet connector and a sterilization lamp assembly, and the shell is provided with a first overflowing channel and a water inlet end communicated with the first overflowing channel; the water outlet connector is installed at the water outlet end of the shell and communicates with the first overflowing channel, and the water outlet connector is a heat conduction piece. The germicidal lamp assembly is arranged on the water outlet connector and used for emitting germicidal light into the first overflowing channel; heat generated by the germicidal lamp assembly is dissipated into water of the water outlet connector through the water outlet connector. According to the technical scheme, the water inlet of the water heater can be effectively sterilized, the purpose of improving the water outlet quality of the water heater is achieved, and meanwhile the anti-freezing function can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a sterilization device and a water heater. Background Art

[0002] A water heater is a device that uses various physical principles to raise the temperature of cold water into hot water within a certain period of time. According to the different heating principles, it can be divided into electric water heaters, gas water heaters, solar water heaters, air energy water heaters, etc.

[0003] When the water heater is in use, water is stored in the pipes, which can easily breed bacteria and cause the water quality to deteriorate. After people use the water for washing, bathing, and kitchen use, they may experience skin allergies and other health problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a sterilization device, which is intended to effectively sterilize the inlet water of a water heater and improve the outlet water quality of the water heater.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a sterilization device, comprising:

[0006] A shell body, provided with a first flow passage and a water inlet end communicated with the first flow passage;

[0007] a water outlet joint, installed at the water outlet end of the housing and connected to the first flow passage, the water outlet joint being a heat conducting member; and

[0008] The germicidal lamp assembly is arranged at the water outlet joint and is used to emit germicidal light into the first flow channel; wherein the heat generated by the germicidal lamp assembly is dissipated into the water of the water outlet joint through the water outlet joint.

[0009] In one embodiment of the present application, a second flow channel connected to the first flow channel is provided in the water outlet joint, and the germicidal lamp assembly is located between the first flow channel and the second flow channel.

[0010] In one embodiment of the present application, the water outlet connector includes:

[0011] a joint body, in which the second flow passage is formed; and

[0012] A mounting structure, disposed at one end of the joint body, and forming a flow opening between the mounting structure and the joint body that connects the first flow passage and the second flow passage;

[0013] The germicidal lamp assembly is mounted on the mounting structure, the light-emitting surface of the germicidal lamp assembly faces the first flow passage, and the backlight surface of the germicidal lamp assembly faces the second flow passage.

[0014] In one embodiment of the present application, the germicidal lamp assembly includes:

[0015] a germicidal lamp body, embedded in the water outlet joint, with the light-emitting surface of the germicidal lamp body facing the first flow channel; and

[0016] The light-transmitting plate is arranged on one side of the light-emitting surface of the germicidal lamp body and is sealed and connected to the water outlet joint.

[0017] In one embodiment of the present application, the germicidal lamp body is a UVC-LED lamp group.

[0018] In one embodiment of the present application, a heat-conducting layer is provided on the backlight surface of the germicidal lamp assembly.

[0019] In one embodiment of the present application, the sterilization device also includes a flow guide component, one end of which is connected to the water inlet end of the shell, and the other end is connected to the water outlet joint to divide the inner cavity of the shell into multiple sub-channels, and the multiple sub-channels are connected end to end to form the first flow channel.

[0020] In one embodiment of the present application, the flow guide component includes:

[0021] a guide tube, in which a first sub-channel is formed, a water inlet end of the first sub-channel is connected to the water inlet end of the housing, and a water outlet end of the first sub-channel is arranged opposite to the light-emitting surface of the germicidal lamp assembly; and

[0022] The reflector is sleeved on the outside of the guide tube and forms a second sub-channel with the guide tube. The water inlet of the second sub-channel is connected with the water outlet of the first sub-channel. The reflector is provided with an opening corresponding to the germicidal lamp assembly.

[0023] In one embodiment of the present application, a third sub-channel is formed between the outer circumferential wall of the reflective tube and the inner circumferential wall of the shell, and a water inlet end of the third sub-channel is connected to a water outlet end of the second sub-channel;

[0024] A reflective plate is provided at the connection between the second sub-channel and the third sub-channel, and the reflective plate is located on a side of the reflective tube away from the germicidal lamp assembly.

[0025] In one embodiment of the present application, the guide tube is a light-transmitting member.

[0026] To achieve the above objectives, the present application also provides a water heater, including a heat exchange component, a water inlet pipe and a water outlet pipe connected to the heat exchange component, and the above sterilization device, wherein the sterilization device is installed on the water inlet pipe.

[0027] In one embodiment of the present application, the water heater further comprises a temperature sensor installed on the water inlet pipe, and the temperature sensor is electrically connected to the germicidal lamp assembly.

[0028] In the sterilization device of the technical solution of the utility model, the shell is provided with a first flow channel and a water inlet and a water outlet connected to the first flow channel, and a water outlet joint is provided at the water outlet, so that water can flow in from the water inlet and out from the water outlet joint. By arranging a sterilization lamp assembly on the water outlet joint, the sterilization lamp assembly can emit sterilization light into the first flow channel to achieve the function of disinfecting and sterilizing the water in the first flow channel, thereby achieving the sterilization function of the water flowing through the sterilization device. When the sterilization device of this embodiment is applied to a water heater, it can effectively sterilize the water inlet of the water heater, so as to achieve the purpose of improving the water quality of the water outlet of the water heater. In addition, the water outlet joint is a heat conductor, so that the heat generated by the sterilization lamp assembly can be quickly transferred to the water flowing through the water outlet joint through the water outlet joint, thereby improving the heat dissipation efficiency of the sterilization lamp assembly, and a higher-power sterilization lamp assembly can be used to achieve a better sterilization effect, and at the same time, it can have an antifreeze function in a low temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0030] Figure 1 This is a schematic structural diagram of an embodiment of the sterilization device of the utility model;

[0031] Figure 2 It is an explosion diagram of an embodiment of the sterilization device of the utility model;

[0032] Figure 3 It is a structural schematic diagram of an embodiment of the water heater of the utility model.

[0033] Description of Figure Numbers:

[0034]

[0035]

[0036] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0041] When the water heater is in use, water is stored in the pipes, which is easy to breed bacteria and cause water quality to deteriorate. After people use the water for washing, bathing and kitchen, they will have skin allergies and other health problems. In the related art, a germicidal lamp is used to sterilize water, but the germicidal lamp is installed on the outside of the water outlet pipe, and the heat generated by it during operation is difficult to dissipate, which easily leads to the problem of overheating of the germicidal lamp; at the same time, when it is in the winter with low temperature, the water channel in the sterilization device is prone to freezing.

[0042] Based on this, the utility model proposes a sterilization device, which aims to effectively sterilize the water inlet of the water heater by emitting sterilization light to the water channel through a sterilization lamp, and at the same time, the sterilization lamp is set in the water outlet joint, which can quickly transfer the heat of the sterilization lamp to the water flow, so as to quickly dissipate heat and realize the antifreeze function. It can be understood that the sterilization device can be applied to water heaters, and the water heaters are not limited to a specific type, for example, they can be electric water heaters, gas water heaters, solar water heaters, air energy water heaters, etc.

[0043] The structure of the sterilization device will be described below by way of example.

[0044] like Figure 1 and Figure 2 As shown, in the embodiment of the present utility model, the sterilization device 100 includes a housing 1 , a water outlet connector 2 and a sterilization lamp assembly 3 .

[0045] The shell 1 is provided with a first flow channel 101 and a water inlet end 102 connected to the first flow channel 101; the water outlet joint 2 is installed at the water outlet end 103 of the shell 1 and is connected to the first flow channel 101, and the water outlet joint 2 is a heat conductive part; the sterilization lamp assembly 3 is provided at the water outlet joint 2, and is used to emit sterilization light into the first flow channel 101; wherein, the heat generated by the sterilization lamp assembly 3 is conducted to the water flowing through the water outlet joint 2 through the water outlet joint 2.

[0046] In this embodiment, the housing 1 serves to install and support the internal components of the sterilization device 100. A first flow channel 101 is provided in the housing 1, and its water inlet 102 and water outlet 103 are respectively connected to the first flow channel 101. The water outlet connector 2 is installed at the water outlet 103, and the water flows into the first flow channel 101 from the water inlet 102, and then flows out through the water outlet connector 2 at the water outlet 103. A sterilization lamp assembly 3 is provided on the water outlet connector 2, and the sterilization lamp assembly 3 can emit sterilization light into the first flow channel 101 to sterilize the water flowing through the first flow channel 101. After being sterilized, the water flows out from the water outlet connector 2, thereby achieving the function of effectively sterilizing the water.

[0047] Understandable, such as Figure 3 When the sterilization device 100 is used in a water heater, the water inlet end 102 of the shell 1 is connected to the water inlet side of the water inlet pipe 200, so that water flows from the water inlet end 102 into the first flow channel 101 for disinfection and sterilization, and then flows out from the water outlet joint 2 at the water outlet end 103 to the heat exchange component 400, thereby achieving effective sterilization of the water inlet of the water heater and improving the water quality of the water outlet of the water heater.

[0048] It should be noted that the germicidal lamp assembly 3 will generate a large amount of working heat after working for a period of time. In this embodiment, the germicidal lamp assembly 3 is set on the water outlet joint 2, and the water outlet joint 2 is a heat conductor, so that the heat generated by the germicidal lamp assembly 3 can be quickly transferred to the water outlet joint 2, and then the water outlet joint 2 can quickly transfer the heat to the water flowing through the water outlet joint 2, so that the function of using water flow to dissipate heat for the germicidal lamp assembly 3 can be achieved. Compared with the method of setting the germicidal lamp assembly 3 outside the shell to dissipate heat to the air in the related art, the heat dissipation efficiency of the water flow heat dissipation method in this embodiment is higher. Therefore, under the same temperature resistance conditions, the sterilization device can use a higher-power germicidal lamp assembly 3 to achieve a higher germicidal light irradiation intensity and achieve a better sterilization effect.

[0049] Because the sterilization lamp assembly 3 is arranged on the thermally conductive water outlet joint 2, when the sterilization device 100 is in a low temperature environment, the heat can be transferred to the water by turning on the sterilization lamp assembly 3 to generate heat, thereby preventing the water in the sterilization device 100 from freezing and cracking the sterilization device 100, thereby achieving an antifreeze function.

[0050] In practical applications, the water outlet connector 2 can be made of copper or stainless steel with good thermal conductivity. The assembly structure of the water outlet connector 2 and the housing 100 can be determined according to actual conditions, such as interference fixation, clamp fixation, or screw fixation.

[0051] In actual application, the germicidal lamp assembly 3 can be a structure that sterilizes by emitting ultraviolet rays to irradiate fluid (ultraviolet rays irradiate the fluid to be purified, which can destroy the nucleic acid molecular structure of bacteria, making them unable to regenerate and lose their self-replication ability, thereby achieving the purpose of sterilization), for example, it can be an ultraviolet mercury lamp, an ultraviolet LED lamp, etc. The germicidal lamp assembly 3 can be embedded in the water outlet joint 2, or it can be set on the surface of the water outlet joint 2. As long as the germicidal lamp assembly 3 can irradiate ultraviolet rays toward the first flow channel 101, its specific installation method is not limited here.

[0052] In actual application, a heat conductive layer such as heat conductive glue, heat conductive silicone grease, etc. can be set between the backlight surface of the germicidal lamp assembly 3 and the water outlet joint 2 to accelerate the heat transfer of the germicidal lamp assembly 3 to the water outlet joint 2 and further improve the heat dissipation efficiency.

[0053] In summary, in the sterilization device 100 of the technical solution of the utility model, the housing 1 is provided with a first flow channel 101 and a water inlet end 102 and a water outlet end 103 connected to the first flow channel 101, and a water outlet joint 2 is provided at the water outlet end 103, so that water can flow in from the water inlet end 102 and flow out from the water outlet joint 2. By arranging a sterilization lamp assembly 3 on the water outlet joint 2, the sterilization lamp assembly 3 can emit sterilization light into the first flow channel 101, thereby achieving the function of disinfecting and sterilizing the water in the first flow channel 101, thereby achieving the sterilization function of the water flowing through the sterilization device 100. When the sterilization device 100 of this embodiment is applied to a water heater, it can effectively sterilize the water inlet of the water heater, thereby achieving the purpose of improving the water quality of the water outlet of the water heater. In addition, the water outlet connector 2 is a heat conductor, so that the heat generated by the germicidal lamp assembly 3 can be quickly transferred to the water flowing through the water outlet connector 2, thereby improving the heat dissipation efficiency of the germicidal lamp assembly 3. A higher-power germicidal lamp assembly 3 can be used to achieve a better sterilization effect, and at the same time, it can have an antifreeze function in a low temperature environment.

[0054] In one embodiment of the present application, Figure 1 A second flow channel 201 communicating with the first flow channel 101 is provided in the water outlet joint 2 , and the germicidal lamp assembly 3 is located between the first flow channel 101 and the second flow channel 201 .

[0055] In this embodiment, by arranging the germicidal lamp assembly 3 between the first flow channel 101 and the second flow channel 201, the fluid is irradiated and sterilized by the germicidal lamp assembly 3 when flowing through the first flow channel 101, and then can exchange heat with the water outlet joint 2 when flowing through the second flow channel 201 to take away the heat of the germicidal lamp assembly 3. It can be understood that the fluid will flow through both the light-emitting surface and the backlight surface of the germicidal lamp assembly 3, which further improves the heat dissipation efficiency.

[0056] Specifically, Figure 1 and Figure 2 The water outlet joint 2 includes a joint body 21 and a mounting structure 22, and a second flow channel 201 is formed in the joint body 21; the mounting structure 22 is arranged at one end of the joint body 21, and a flow port 202 connecting the first flow channel 101 and the second flow channel 201 is formed between the joint body 21; the germicidal lamp assembly 3 is installed on the mounting structure 22, the light-emitting surface of the germicidal lamp assembly 3 faces the first flow channel 101, and the backlight surface of the germicidal lamp assembly 3 faces the second flow channel 201.

[0057] In this embodiment, the joint body 21 plays the role of conducting the flow path, and the second flow passage 201 is formed in the joint body 21. Optionally, the joint body 21 is installed at the water outlet end 103 of the housing 1, and the joint body 21 is inserted into the housing 1, and the two are sealed by the joint sealing ring 63. The outer end of the joint body 21 can be pressed into the housing 1 through the joint pressing plate 61 and fastened by the second screw 62.

[0058] The mounting structure 22 plays the role of supporting and installing the germicidal lamp assembly 3. Optionally, the mounting structure 22 is connected to one end of the joint body 21 close to the first flow channel 101, and a flow port 202 is formed between the mounting structure 22 and the joint body 21 to conduct the first flow channel 101 and the second flow channel 201. At this time, the mounting structure 22 is located between the first flow channel 101 and the second flow channel 201. By mounting the germicidal lamp assembly 3 on the mounting structure 22, the light-emitting surface of the germicidal lamp assembly 3 is directed toward the first flow channel 101, which can effectively sterilize the water flow in the first flow channel 101; the backlight surface of the germicidal lamp assembly 3 is directed toward the second flow channel 201. Since the water outlet joint 2 is a heat-conducting member, the heat generated by the germicidal lamp assembly 3 can be more quickly conducted to the second flow channel 201, thereby improving the heat dissipation efficiency.

[0059] In practical application, the mounting structure 22 and the connector body 21 can be separate structures fixed together, or can be an integral structure. In this embodiment, considering factors such as process difficulty and cost, it is preferred that the mounting structure 22 and the connector body 21 are an integrally formed structure.

[0060] In one embodiment of the present application, Figure 1 and Figure 2 The germicidal lamp assembly 3 includes a germicidal lamp body 31 and a light-transmitting plate 32. The germicidal lamp body 31 is embedded in the water outlet joint 2, and the light-emitting surface of the germicidal lamp body 31 faces the first flow channel 101; the light-transmitting plate 32 is arranged on one side of the light-emitting surface of the germicidal lamp body 31 and is sealed and connected to the water outlet joint 2.

[0061] In this embodiment, a mounting groove 203 is provided on the side of the water outlet joint 2 facing the first flow passage 101, and the germicidal lamp body 31 is installed in the mounting groove 203 so that the light-emitting surface of the germicidal lamp body 31 can face the first flow passage 101. Optionally, the germicidal lamp body 31 is a UVC-LED lamp group, the back plate of the germicidal lamp body 31 is connected to the water outlet joint 2, and the lamp beads of the germicidal lamp body 31 are arranged toward the light-transmitting plate 32. Optionally, a wire hole 204 for routing the germicidal lamp body 31 is provided on the water outlet joint 2.

[0062] The light-transmitting plate 32 serves to isolate the germicidal lamp body 31 from the water channel, and can transmit the germicidal light into the first flow channel 101 to achieve the sterilization function of the water in the first flow channel 101. Optionally, the light-transmitting plate 32 can be made of light-transmitting materials such as glass and acrylic.

[0063] During actual installation, the germicidal lamp body 31 is pressed into the installation groove 203 through the light-transmitting plate 32, and a germicidal lamp sealing ring 54 is used to seal between the light-transmitting plate 32 and the water outlet joint 2; then a gasket 52 and a germicidal lamp pressure plate 51 are set on the outside of the light-transmitting plate 32 to press tightly, and finally fastened to the water outlet joint 2 by the first screw 53.

[0064] In one embodiment of the present application, Figure 1 and Figure 2 The sterilization device 100 also includes a flow guide component 4 arranged in the shell 1, one end of the flow guide component 4 is connected to the water inlet end 102 of the shell 1, and the other end is connected to the water outlet joint 2 to divide the inner cavity of the shell 1 into multiple sub-channels, and the multiple sub-channels are connected end to end to form a first flow channel 101.

[0065] In the present embodiment, a flow guide component 4 is provided in the shell 1, which divides the inner cavity of the shell 1 into a plurality of sub-channels connected end to end. Compared with the flow channel directly connecting the water inlet end 102 and the water outlet joint 2, the present embodiment can extend the flow path of the water flow, thereby enabling the water flow to stay in the sterilization state for a longer time, thereby achieving a better sterilization effect.

[0066] In actual application, the germicidal lamp assembly 3 can irradiate the fluid in one of the sub-channels alone, or can irradiate the fluid in multiple sub-channels at the same time, and its specific position is not limited here.

[0067] It is understandable that the specific structure of the flow guide component 4 can be determined according to actual conditions, for example, it can be a pipeline structure, a rib structure or other structures.

[0068] As an example, Figure 1 and Figure 2 The guide assembly 4 includes a guide tube 41 and a reflective tube 42. A first sub-channel 101a is formed in the guide tube 41. The water inlet end of the first sub-channel 101a is connected to the water inlet end 102 of the shell 1, and the water outlet end of the first sub-channel 101a is arranged opposite to the light-emitting surface of the germicidal lamp assembly 3; the reflective tube 42 is sleeved on the outside of the guide tube 41, and a second sub-channel 101b is formed between the reflective tube 42 and the guide tube 41, and the water inlet end of the second sub-channel 101b is connected to the water outlet end of the first sub-channel 101a; the reflective tube 42 is provided with an opening 421 corresponding to the germicidal lamp assembly 3.

[0069] In this embodiment, the water inlet end of the guide tube 41 is connected to the water inlet end 102 of the housing 1. It can be understood that the water first flows into the guide tube 41. By arranging the water outlet end of the guide tube 41 opposite to the light-emitting surface of the germicidal lamp assembly 3, the water flowing in from the water inlet end 102 will be irradiated and sterilized by the germicidal lamp assembly 3, thereby ensuring the sterilization effect. Furthermore, a reflective tube 42 is sleeved on the outside of the guide tube 41. The reflective tube 42 is provided with an opening 421 corresponding to the germicidal lamp assembly 3, so that the germicidal light emitted by the germicidal lamp assembly 3 can cover the first sub-channel 101a and the second sub-channel 101b at the same time, and the germicidal light can be reflected by the reflective tube 42, which can further enhance the irradiation of the germicidal light and improve the sterilization effect.

[0070] Furthermore, the guide tube 41 is a light-transmitting member. Since the outlet of the guide tube 41 faces the front of the germicidal lamp, the uniformity of irradiation on the water channel can be effectively improved. At the same time, combined with the light reflection performance of the reflective tube 42, a cavity with very high ultraviolet radiation intensity can be formed inside the reflective tube 42, further improving the sterilization effect. Optionally, the guide tube 41 is made of glass.

[0071] Furthermore, if Figure 1 and Figure 2 A third sub-channel 101c is formed between the outer circumferential wall of the reflective tube 42 and the inner circumferential wall of the shell 1, and the water inlet end of the third sub-channel 101c is connected to the water outlet end of the second sub-channel 101b; a reflective plate 43 is provided at the connection between the second sub-channel 101b and the third sub-channel 101c, and the reflective plate 43 is located on the side of the reflective tube 42 away from the germicidal lamp assembly 3.

[0072] In this embodiment, a reflective plate 43 is provided in the shell 1, and the reflective plate 43 is located at the connection between the second sub-channel 101b and the third sub-channel 101c, and is provided at both ends of the germicidal lamp assembly 3, so that the ultraviolet rays emitted by the germicidal lamp assembly 3 can be uniformly transmitted by the guide tube 41, reflected by the reflective tube 42 and reflected by the reflective plate 43. On the one hand, a cavity with very high ultraviolet radiation intensity can be formed in the reflective tube 42, and on the other hand, the reflective plate 43 can reflect part of the ultraviolet rays into the third sub-channel 101c, which increases the irradiation intensity and further extends the irradiation path of the water flow, thereby ensuring a better sterilization effect.

[0073] It can be understood that during the actual assembly, the reflector 43 is first sealed and installed in the shell 1 through the reflector sealing ring 72, and then the guide tube 41 is sealed and installed on the reflector 43 through the guide tube sealing ring 71, and then the reflector tube 42 is put on the outside of the guide tube 41 so that the lower end of the reflector tube 42 is against the reflector 43, and then the assembly of the water outlet connector 2 and the germicidal lamp assembly 3 is installed on the top of the reflector tube 42 to fix the guide assembly 4; finally, the water outlet connector 2 is fastened to the shell 1 through the connector pressure plate 61 and the second screw 62.

[0074] The utility model also provides a water heater, such as Figure 3 The water heater includes a heat exchange component 400, a water inlet pipe 200 and a water outlet pipe 300 connected to the heat exchange component 400, and a sterilizing device 100. The specific structure of the sterilizing device 100 refers to the above embodiment. Since the water heater adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the sterilizing device 100 is installed on the water inlet pipe 200 to disinfect and sterilize the water flow of the water heater and improve the water quality of the water outlet of the water heater.

[0075] In one embodiment of the present application, the water heater further includes a temperature sensor 500 installed on the water inlet pipe 200 , and the temperature sensor 500 is electrically connected to the germicidal lamp assembly 3 .

[0076] It can be understood that when water flows through the sterilization device 100, the sterilization lamp assembly 3 in the sterilization device 100 is turned on, and the water flowing through the sterilization device 100 can be irradiated and sterilized, thereby achieving the purpose of improving the water quality of the water heater.

[0077] When the water heater is in a low temperature environment and no water is used, in order to prevent the sterilization device 100 from being damaged by ice due to low temperature in the water path, the sterilization lamp assembly 3 can be turned on according to the inlet water temperature, and the heat generated by the sterilization lamp assembly 3 can be used to heat the water flow to achieve the purpose of antifreeze.

[0078] In actual application, the water inlet temperature can be set according to the actual situation (the ambient temperature in different places is different). As an example, the water flow temperature is 3°C:

[0079] When the temperature sensor 500 detects that the water temperature is lower than 3°C, the germicidal lamp assembly 3 can be turned on intermittently (to avoid continuous operation at too high a temperature) to allow the heat generated by the germicidal lamp assembly 3 to be transferred to the water, thereby preventing the water in the sterilization device 100 from freezing and cracking.

[0080] When the temperature sensor 500 detects that the inlet water temperature is higher than 5° C., the germicidal lamp assembly 3 is turned off to avoid overheating. When the temperature drops to 3° C. again, the germicidal lamp assembly 3 can be started again for antifreeze.

[0081] It should be noted that, since the temperature sensor 500 is above the sterilization device 100, the hot water in the antifreeze working process of the sterilization device 100 will flow upward, thereby realizing the detection of the water temperature near the water outlet joint 2 of the sterilization device 100. That is, it can be shared with the water inlet temperature sensor 500 on the original water heater inlet pipe 200, without the need to set up an additional temperature sensor 500 to detect the water outlet temperature of the sterilization device 100, thereby simplifying the structure and saving material costs.

[0082] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sterilization device, characterized in that: include: A shell body, provided with a first flow passage and a water inlet end communicated with the first flow passage; a water outlet joint, installed at the water outlet end of the housing and communicated with the first flow passage, the water outlet joint being a heat conducting member; and The germicidal lamp assembly is arranged at the water outlet joint and is used to emit germicidal light into the first flow channel; wherein the heat generated by the germicidal lamp assembly is dissipated into the water of the water outlet joint through the water outlet joint.

2. The sterilization device according to claim 1, characterized in that: A second flow passage communicating with the first flow passage is provided in the water outlet joint, and the germicidal lamp assembly is located between the first flow passage and the second flow passage.

3. The sterilization device according to claim 2, characterized in that: The water outlet joint comprises: a joint body, in which the second flow passage is formed; and A mounting structure, disposed at one end of the joint body, and forming a flow opening between the mounting structure and the joint body that connects the first flow passage and the second flow passage; The germicidal lamp assembly is mounted on the mounting structure, the light-emitting surface of the germicidal lamp assembly faces the first flow passage, and the backlight surface of the germicidal lamp assembly faces the second flow passage.

4. The sterilization device according to any one of claims 1 to 3, characterized in that: The germicidal lamp assembly comprises: a germicidal lamp body, embedded in the water outlet joint, with the light-emitting surface of the germicidal lamp body facing the first flow channel; and The light-transmitting plate is arranged on one side of the light-emitting surface of the germicidal lamp body and is sealed and connected to the water outlet joint.

5. The sterilization device according to claim 4, characterized in that: The germicidal lamp body is a UVC-LED lamp group.

6. The sterilization device according to any one of claims 1 to 3, characterized in that: The backlight surface of the germicidal lamp assembly is provided with a heat-conducting layer.

7. The sterilization device according to any one of claims 1 to 3, characterized in that: The sterilization device also includes a flow guide component, one end of which is connected to the water inlet end of the shell, and the other end is connected to the water outlet joint to divide the inner cavity of the shell into multiple sub-channels, and the multiple sub-channels are connected end to end to form the first flow channel.

8. The sterilization device according to claim 7, characterized in that: The flow guide assembly comprises: a guide tube, in which a first sub-channel is formed, a water inlet end of the first sub-channel is connected to the water inlet end of the housing, and a water outlet end of the first sub-channel is arranged opposite to the light-emitting surface of the germicidal lamp assembly; and The reflector is sleeved on the outside of the guide tube and forms a second sub-channel with the guide tube. The water inlet of the second sub-channel is connected with the water outlet of the first sub-channel. The reflector is provided with an opening corresponding to the germicidal lamp assembly.

9. The sterilization device according to claim 8, characterized in that: A third sub-channel is formed between the outer peripheral wall of the reflective tube and the inner peripheral wall of the shell, and a water inlet end of the third sub-channel is connected to a water outlet end of the second sub-channel; A reflective plate is provided at the connection between the second sub-channel and the third sub-channel, and the reflective plate is located on a side of the reflective tube away from the germicidal lamp assembly.

10. The sterilization device according to claim 8, characterized in that: The guide tube is a light-transmitting member.

11. A water heater, characterized in that: It comprises a heat exchange component, a water inlet pipe and a water outlet pipe connected to the heat exchange component, and a sterilization device as claimed in any one of claims 1 to 10, wherein the sterilization device is installed on the water inlet pipe.

12. The water heater according to claim 11, characterized in that The water heater also includes a temperature sensor installed on the water inlet pipe, and the temperature sensor is electrically connected to the germicidal lamp assembly.

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