Water purifier with disinfection function

Abstract

The utility model relates to a water purifier with disinfection function, include: water storage tank, ultraviolet lamp is located in the water storage tank, still include the reflection cover that is located in the water storage tank, this reflection cover is adjacent the ultraviolet lamp setting, and the concave reflection surface of notch towards ultraviolet lamp is structured to the side of this reflection cover towards the ultraviolet lamp, the ultraviolet light that the ultraviolet lamp emits is reflected to the corresponding area position in the water storage tank by the concave reflection surface. Advantages lie in: the concave reflection surface of reflection cover can effectively gather ultraviolet lamp scattered light, effectively solve the problem of live bacteria residue caused by insufficient dose when water flow is high speed.

Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, and in particular to a water purifier with disinfection function. Background Technology

[0002] Water purifiers typically use ultraviolet (UV) lamps for sterilization. These UV lamps are usually fixed in place, resulting in a fixed radiation angle and scattered light distribution, significantly diluting the UV intensity per unit area. Microorganisms require a cumulative dose (intensity × time) to be inactivated; this energy dispersion prevents the instantaneous critical sterilization dose from being reached. Especially with fast water flow, some microorganisms may pass through the sterilization zone without sufficient irradiation, posing a high risk of residual live bacteria. The significant difference in radiation intensity between the center and edges of the lamp means that areas far from the light source or under side irradiation receive doses far below the sterilization threshold, becoming breeding grounds for bacteria. Furthermore, the complex internal structure of the water tank (e.g., filters, baffles, inlet / outlet pipes) makes it easy for the fixed light source to be blocked, creating permanent shadow areas (e.g., corners, recesses) where UV light cannot penetrate or reflect. These shortcomings of existing water purifiers lead to a continuous risk of biofilm growth within the tank, reducing water safety and potentially causing secondary pollution, posing health risks to users with long-term use. Existing solutions rely on increasing the number of lamps or extending the illumination time, but these cannot solve the fundamental problem and instead increase energy consumption and maintenance costs.

[0003] Therefore, existing water purifiers still need further improvement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the issue of low sterilization efficiency caused by the dispersion of ultraviolet energy inside the tank of existing water purifiers, and to provide a water purifier with good disinfection effect.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a water purifier with disinfection function, comprising:

[0006] Water storage tank;

[0007] An ultraviolet lamp is installed inside the water storage tank;

[0008] It also includes a reflector disposed inside the water tank, the reflector being disposed adjacent to the ultraviolet lamp, and the side of the reflector facing the ultraviolet lamp having a concave reflective surface with a notch facing the ultraviolet lamp, the ultraviolet light emitted by the ultraviolet lamp being reflected by the concave reflective surface to a corresponding area within the water tank.

[0009] The aforementioned "concave reflecting surface" can be understood as an inwardly concave curved surface used to focus or directionally reflect light. Examples include arcs (such as parabolic cross sections), spheres, and ellipsoids.

[0010] The concave reflective surface of the water purifier's reflector effectively concentrates the scattered light from the ultraviolet lamps, focusing the originally dispersed radiation energy onto the target area. This significantly increases the ultraviolet intensity per unit area, allowing microorganisms to accumulate to a critical sterilization dose within a very short irradiation time, effectively solving the problem of insufficient dose leading to residual live bacteria when water flows at high speeds. The directional reflective characteristics of the reflector enable efficient use of ultraviolet energy, reducing the number of lamps or shortening the irradiation time while achieving the same sterilization effect. Compared to traditional solutions, this effectively reduces energy consumption. Furthermore, the adjustable design avoids over-configuration of light sources to cover dead areas, significantly reducing maintenance costs.

[0011] As an improvement, the reflector is rotatably disposed inside the water tank, thereby reflecting the ultraviolet light emitted by the ultraviolet lamp through the concave reflective surface to different areas within the water tank.

[0012] The aforementioned reflector can be "rotatably" rotated about an axis or rotated in all directions about a corresponding point (such as a hinge point).

[0013] The aforementioned rotation method enables periodic scanning irradiation, completely eliminating physical blind spots for biofilm growth and blocking secondary pollution sources. The directional reflection characteristics of the reflector allow for efficient utilization of ultraviolet energy, reducing the number of lamps or shortening the irradiation time while maintaining the same sterilization effect. Compared to traditional solutions, this effectively reduces energy consumption. Furthermore, the adjustable design avoids over-configuration of light sources to cover dead areas, significantly reducing maintenance costs.

[0014] The reflector can be rotated manually or automatically by a drive mechanism. Preferably, it also includes a drive mechanism, which drives the reflector to adjust its position relative to the ultraviolet lamp.

[0015] Generally, ultraviolet (UV) lamps can be UV bulbs (point light sources), UV tubes (i.e., linear light sources), or surface light sources formed by combining multiple UV bulbs or tubes. Preferably, to better adapt to water purifiers, the UV lamp is a vertically extending UV tube. Since the light from a linear UV tube diverges radially, the reflector shape needs to be optimized for efficient light focusing and to fit the tube structure. Specifically, the reflector is elongated, and its extension direction is consistent with the length direction of the UV tube. The cross-section of the concave reflective surface of the reflector is arc-shaped. The arc-shaped reflective surface of the reflector can directionally reflect UV light to the target area, reducing light energy loss; the elongated reflector is parallel to the tube, achieving uniform longitudinal reflection, which is suitable for the disinfection needs of deep water tanks.

[0016] To simplify the movement of the reflector and ensure effective reflection of ultraviolet light, the reflector rotates around or parallel to the axis of the ultraviolet lamp under the drive mechanism. It is understood that the movement of the reflector relative to the ultraviolet lamp is not limited to rotation around a set axis; it can also be linear motion or a combination of linear motion and rotational motion (including rotation around an axis or rotation at a hinge point).

[0017] To ensure the reflector maintains a stable relative position with the lamp tube during rotation, guaranteeing a controllable reflected light path and avoiding mechanical interference, the reflector is improved by including a first side edge and a second side edge opposite to each other. The first side edge is positioned against the ultraviolet lamp tube, while the second side edge is positioned away from the ultraviolet lamp tube. The axis of rotation of the reflector relative to the ultraviolet lamp tube coincides with or is adjacent to the central axis of the ultraviolet lamp tube. This structural design also allows the reflector to be as close as possible to the ultraviolet lamp tube and minimizes the space occupied by the reflector during rotation within the water tank, reducing interference with other components within the water tank.

[0018] To facilitate connection with the reflector and to meet the requirement that "the axis of rotation of the reflector relative to the UV lamp tube coincides with or is adjacent to the central axis of the UV lamp tube", the top of the reflector has a connecting end cap extending toward the location of the UV lamp tube. The driving mechanism is a drive motor located on the top of the water tank, and the output shaft of the drive motor is connected to the connecting end cap to drive the reflector to rotate.

[0019] To facilitate the installation of the drive motor and subsequent maintenance and disassembly, the top wall of the water tank has a recessed mounting groove and a cover that fits over the top opening of the mounting groove. The drive motor is housed in the mounting groove, and its output shaft passes through the bottom wall of the groove and connects to the reflector. The recessed design on the top of the water tank saves external space and keeps the water purifier's appearance neat.

[0020] Considering the need for a tight seal when the motor shaft enters the water tank to prevent water leakage leading to short circuits or contamination, a first through-hole is provided on the bottom wall of the mounting groove. A sealing sleeve is provided at the first mounting hole, and the output shaft of the drive motor passes through the sealing sleeve. The sealing sleeve (such as a rubber ring) effectively fills the gap between the shaft and the hole wall, achieving dynamic rotational sealing.

[0021] For the installation and subsequent maintenance of the various components inside the water tank, the water tank includes a water tank body with an open top and a detachable cover that fits onto the water tank body, and the cover has the aforementioned mounting groove.

[0022] Considering that the drive mechanism is located at the top of the water tank, to avoid encroaching on the installation space at the top of the water tank, the lower end of the ultraviolet lamp is fixed to the bottom wall of the water tank, and the ultraviolet lamp extends from bottom to top to a position adjacent to the top wall of the water tank. Fixing the ultraviolet lamp at the bottom prevents displacement of the lamp tube due to water flow impact. The ultraviolet lamp tube extends through the height of the water tank, and together with the reflector, it can achieve vertical, full-coverage, three-dimensional disinfection.

[0023] As an improvement, a second mounting hole is provided on the bottom wall of the water storage tank, which runs vertically through the tank. The bottom end of the ultraviolet lamp is installed in the second mounting hole, and a wire connection end is provided that protrudes downward through the second mounting hole.

[0024] Compared with existing technologies, the advantages of this invention are as follows: The concave reflective surface of the reflector of this water purifier can effectively concentrate the scattered light from the ultraviolet lamp, reflecting the originally dispersed radiation energy to the target area. The ultraviolet intensity per unit area can be greatly increased, allowing microorganisms to accumulate to the critical bactericidal dose in a very short irradiation time, effectively solving the problem of insufficient dose leading to residual live bacteria when water flows through at high speed. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the water purifier according to an embodiment of the present utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the water purifier according to another embodiment of the present utility model;

[0027] Figure 3 This is a vertical sectional perspective view of the water purifier of this utility model, cut along its length.

[0028] Figure 4 for Figure 1 A cross-sectional view of the water purifier cut along the AA direction;

[0029] Figure 5 This is a vertical sectional perspective view of the water purifier of this utility model, cut along the width direction, with the cutting surface passing through the central axis of the ultraviolet lamp tube;

[0030] Figure 6 This is a three-dimensional structural diagram of the ultraviolet lamp tube and the drive motor in the working state of an embodiment of the present utility model. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0033] Figures 1-6 This illustration shows a preferred embodiment of the water purifier with disinfection function of this utility model. The water purifier with disinfection function in this embodiment includes a water storage tank 10, an ultraviolet lamp 2, a reflector 3, and a drive mechanism. The water storage tank 10 consists of a tank body 11 with an open top and a cover 12 detachably fitted onto the tank body 11. The outer periphery of the cover 12 is connected to the tank body 11 via a snap-fit. The detachable cover 12 facilitates the installation of the components inside the water storage tank 10, as well as subsequent maintenance and cleaning. The ultraviolet lamp 2 is a vertically extending ultraviolet lamp tube (linear light source), cylindrical in shape. Its lower end is fixed through a second mounting hole on the bottom wall of the water storage tank 10, with an exposed wire connection end 21 for power supply. The ultraviolet lamp tube extends from bottom to top to the adjacent top wall of the water storage tank 10, thus essentially penetrating the height of the tank, enabling comprehensive disinfection of the water inside.

[0034] See Figure 1 The water storage tank 10 is a flat, box-shaped structure. The aforementioned ultraviolet lamp is positioned in the middle area of ​​the length and width of the water storage tank 10.

[0035] See Figure 6 The reflector 3 is a long strip-shaped component, extending in the same direction as the length of the ultraviolet lamp tube, with a circular arc-shaped (parabolic) cross-section forming a concave reflective surface 30. This reflective surface faces the ultraviolet lamp tube, with the concave opening directly opposite the tube to focus and scatter ultraviolet light. The concave reflective surface 30 of the reflector 3 can be coated with a reflective coating that easily reflects ultraviolet light. The top of the reflector 3 is provided with a connecting end cap 33 extending horizontally toward the ultraviolet lamp tube for linkage with the drive mechanism. The two opposite sides of the reflector 3 are designated as the first side edge 31 and the second side edge 32, respectively. The first side edge 31 of the reflector 3 is in close contact with the surface of the ultraviolet lamp tube, while the second side edge 32 is away from the tube, thus forming an asymmetrical enclosure structure.

[0036] The driving mechanism includes a drive motor 4 located on top of the water tank 10. The cover 12 of the water tank 10 has a partially recessed mounting groove 120, within which the drive motor 4 is fixed. The top opening of the mounting groove 120 is sealed by a cap 13. A first mounting hole is formed in the bottom wall of the mounting groove 120, into which a rubber sealing sleeve 121 is fitted. The output shaft 41 of the drive motor 4 passes downward through the sealing sleeve 121 and is rigidly connected to the connecting end cap 33 of the reflector 3. The sealing sleeve 121 ensures the water tank's airtightness during rotation, preventing water leakage. The central axis of the output shaft 41 of the drive motor 4 coincides with the central axis of the ultraviolet lamp, allowing the reflector 3 (driven by the drive motor 4) to rotate around the axis of the ultraviolet lamp. During the rotation of the reflector 3 around the ultraviolet lamp, the first side edge 31 of the reflector 3 remains in close contact with the outer peripheral wall of the ultraviolet lamp, while the distance between the second side edge 32 and the ultraviolet lamp remains essentially constant. The above structural design also allows the reflector 3 to be as close as possible to the ultraviolet lamp tube, and minimizes the space occupied by the reflector 3 during its rotation within the water tank 10, thus reducing interference with other components within the water tank 10.

[0037] See Figure 4 After the ultraviolet lamp is activated, the light is radially scattered to the concave reflective surface 30 of the reflector 3. The arc-shaped reflective surface focuses and directionally reflects the scattered light to a specific area of ​​the water tank 10. The drive motor 4 periodically rotates the reflector 3 around the axis of the ultraviolet lamp (the rotation angle is adjustable from 0° to 360°), allowing the reflected beam to scan different areas within the water tank. Through the focusing effect of the reflector 3 and its continuous rotation, the ultraviolet intensity in the target area can be effectively increased (compared to the unfocused state), ensuring that microorganisms reach the critical bactericidal dose instantly and eliminating the risk of biofilm growth in shaded areas. Figure 4 The dashed section shows the reflector 3 in a state of rotation to another angular position.

[0038] In this embodiment, the concave reflective surface 30 of the reflector 3 of the water purifier effectively concentrates the scattered light from the ultraviolet lamp 2, reflecting the originally dispersed radiation energy to the target area. The ultraviolet intensity per unit area can be significantly increased, allowing microorganisms to accumulate to the critical sterilization dose within a very short irradiation time, effectively solving the problem of insufficient dose leading to residual live bacteria when water flows through at high speed. Based on this, the drive mechanism adjusts the position of the reflector 3 in real time, actively covering shadow areas (such as filter gaps and pipe wall grooves) within the water tank 10 that cannot be illuminated by traditional fixed light sources. Through periodic scanning irradiation, physical blind spots for biofilm growth are completely eliminated, blocking secondary pollution sources. The directional reflection characteristics of the reflector 3 enable efficient utilization of ultraviolet energy, reducing the number of lamps or shortening the irradiation time while maintaining the same sterilization effect. Compared to traditional solutions, this effectively reduces energy consumption. Furthermore, the adjustable design avoids over-configuration of light sources to cover dead areas, significantly reducing maintenance costs. The water purifier solution proposed in this application solves the technical problems of ultraviolet intensity dilution and uneven coverage by redesigning the optical path and dynamically controlling it. It achieves disinfection of the entire water tank without dead corners while ensuring instant sterilization effect, thus comprehensively improving water quality safety and system economy.

[0039] Based on the above embodiments, other embodiments can be obtained by replacing and improving the relevant technical features. For example, the reflector 3 can swing around the side axis of the ultraviolet lamp tube through the hinge point (non-concentric rotation) to achieve fan-shaped area scanning. Alternatively, when the ultraviolet lamp 2 is replaced with a point light source (ultraviolet lamp bulb 2), the reflector 3 is changed to a bowl-shaped ellipsoid with the focal point located at the center of the bulb. A surface light source (multi-lamp array) is configured with multiple independent reflectors 3, each of which rotates synchronously by a linkage mechanism. Furthermore, the drive mechanism uses a linear motor to move the reflector 3 up and down along the length of the ultraviolet lamp tube, solving the problem of uneven longitudinal irradiation. Another example is that the upper end of the ultraviolet lamp tube is suspended from the cover 12, while the lower end is freely suspended; the reflector 3 is connected to the bottom wall of the water tank through a bottom bearing. Of course, the drive motor 4 can also be externally mounted, driving the reflector 3 through the water tank wall via a magnetic coupling transmission device, avoiding sealing problems.

Claims

1. A water purifier with disinfection function, comprising: Water storage tank (10); An ultraviolet lamp (2) is installed inside the water storage tank (10); The feature is that it further includes a reflector (3) disposed in the water storage tank (10), the reflector (3) being disposed adjacent to the ultraviolet lamp (2), and the reflector (3) having a concave reflective surface (30) with a notch facing the ultraviolet lamp (2) on the side facing the ultraviolet lamp (2), the ultraviolet light emitted by the ultraviolet lamp (2) being reflected by the concave reflective surface (30) to the corresponding area position in the water storage tank (10).

2. The water purifier with disinfection function according to claim 1, characterized in that: The reflector (3) is rotatably disposed inside the water tank (10), thereby reflecting the ultraviolet light emitted by the ultraviolet lamp (2) through the concave reflector (30) to different areas within the water tank (10).

3. The water purifier with disinfection function according to claim 2, characterized in that: It also includes a drive mechanism, which drives the reflector (3) to adjust its position relative to the ultraviolet lamp (2).

4. The water purifier with disinfection function according to claim 3, characterized in that: The ultraviolet lamp (2) is a vertically extending ultraviolet lamp tube, and the reflector (3) is a long strip. The extension direction of the reflector (3) is consistent with the length direction of the ultraviolet lamp tube. The cross-section of the concave reflective surface (30) of the reflector (3) is arc-shaped.

5. The water purifier with disinfection function according to claim 4, characterized in that: The reflector (3) rotates around the ultraviolet lamp tube or parallel to the axis of the ultraviolet lamp tube under the drive of the drive mechanism.

6. The water purifier with disinfection function according to claim 5, characterized in that: The reflector (3) includes a first side edge (31) and a second side edge (32) that are opposite to each other. The first side edge (31) is set against the ultraviolet lamp tube, while the second side edge (32) is away from the ultraviolet lamp (2). The rotation axis of the reflector (3) relative to the ultraviolet lamp tube coincides with or is adjacent to the central axis of the ultraviolet lamp tube.

7. The water purifier with disinfection function according to claim 5, characterized in that: The top of the reflector (3) has a connecting end cap (33) extending toward the location of the ultraviolet lamp tube. The driving mechanism is a drive motor (4) located on the top of the water tank. The output shaft (41) of the drive motor (4) is connected to the connecting end cap (33) to drive the reflector (3) to rotate.

8. The water purifier with disinfection function according to claim 7, characterized in that: The top wall of the water storage tank (10) has a partially recessed mounting groove (120) and a cover (13) that covers the top opening of the mounting groove (120). The drive motor (4) is located in the mounting groove (120), and the output shaft (41) of the drive motor (4) passes through the bottom wall of the mounting groove (120) and is connected to the reflector.

9. The water purifier with disinfection function according to claim 8, characterized in that: The bottom wall of the mounting groove (120) is provided with a first mounting hole that runs vertically through it. A sealing sleeve (121) is provided at the first mounting hole, and the output shaft (41) of the drive motor (4) passes through the sealing sleeve (121).

10. The water purifier with disinfection function according to claim 8, characterized in that: The water storage tank (10) includes a tank body (11) with an open top and a cover (12) that is detachably fitted onto the tank body (11), and the cover (12) has the mounting groove (120) formed thereon.

11. The water purifier with disinfection function according to claim 4, characterized in that: The lower end of the ultraviolet lamp (2) is fixed on the bottom wall of the water storage tank (10), and the ultraviolet lamp (2) extends from bottom to top to the location of the top wall of the water storage tank (10).

12. The water purifier with disinfection function according to claim 11, characterized in that: The bottom wall of the water storage tank (10) is provided with a second mounting hole that runs vertically through it. The bottom end of the ultraviolet lamp is installed in the second mounting hole and is provided with a wire connection end (21) that protrudes downward outward from the second mounting hole.

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