A heat exchanger
By installing an ultraviolet sterilizer on the inlet of the heat exchanger and connecting it to a water flow sensor, the problem of the heat exchanger's inability to kill bacteria, viruses, and pathogens is solved, thus achieving the purification of tap water and convenient installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINABEST HOME APPLIANCE
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-07
AI Technical Summary
The heat exchangers in existing gas water heaters cannot effectively kill bacteria, viruses, and pathogens in tap water, affecting users' health.
An ultraviolet (UV) sterilizer is installed on the inlet connector of the heat exchanger and connected to a water flow sensor via a clamp, enabling convenient installation and quick setup. The UV sterilizer uses ultraviolet light to kill bacteria, viruses, and pathogens in tap water.
It effectively kills bacteria, viruses and pathogens in tap water, ensuring user health, and requires no added chemicals, does not change the taste or composition of the water, and has a simple structure for easy installation.
Smart Images

Figure CN224470443U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to a heat exchanger. [Background Technology]
[0002] The heat exchangers in existing gas water heaters can generally only heat water. However, the water quality varies in different cities and regions. Tap water may contain different bacteria, viruses, and pathogens. After being heated by a water heater, most of these bacteria, viruses, and pathogens cannot be killed. Therefore, after users use hot water to take a shower, wash vegetables, or cook, bacteria, viruses, and pathogens may remain on human skin or food, affecting human health. [Utility Model Content]
[0003] This invention overcomes the shortcomings of the prior art and provides a heat exchanger that can kill different bacteria, viruses and pathogens in water.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A heat exchanger, characterized in that: it includes a heat exchanger body, a heat exchanger water pipe is provided on the heat exchanger body, a water inlet connector is connected to the water inlet end of the heat exchanger water pipe, a sterilizer for purifying the water flowing through the water inlet connector is provided on the water inlet connector, a water flow sensor is connected to the water inlet end of the water inlet connector, and a clamping member for locking the water inlet connector and the water flow sensor is provided between the water inlet connector and the water flow sensor.
[0006] The heat exchanger described above is characterized in that: a mounting base is provided on the side of the water inlet connector, a mounting base through hole is provided in the mounting base, a sterilizer is provided in the mounting base through hole, and a pressure plate is provided on the top cover of the mounting base through hole to fix the sterilizer in the mounting base through hole.
[0007] The heat exchanger described above is characterized in that a sterilizer sealing ring is provided between the sterilizer and the through hole of the mounting base.
[0008] The heat exchanger described above is characterized in that: a sterilizer groove is provided on the outer side of the sterilizer, and a sterilizer sealing ring is fitted on the sterilizer groove.
[0009] The heat exchanger described above is characterized in that: the inner sidewall of the mounting seat through hole is provided with a mounting seat groove at the outer opening position, and the sterilizer sealing ring is disposed between the sterilizer and the mounting seat groove.
[0010] The heat exchanger described above is characterized in that: the sterilizer is an ultraviolet light sterilizer.
[0011] The heat exchanger described above is characterized in that: the outer side of the water inlet end of the water inlet connector is provided with a connector annular protrusion, the outer side of the water outlet end of the water flow sensor is provided with a water flow sensor annular protrusion connected to the connector annular protrusion, and the clamping member is clamped between the connector annular protrusion and the water flow sensor annular protrusion.
[0012] The heat exchanger described above is characterized in that: the clamping member is an elastic clamp, the elastic clamp includes a horizontal clamp connecting part, and vertical clamp connecting parts are respectively provided on both sides of the horizontal clamp connecting part. The lower end of the vertical clamp connecting part is connected to an arc-shaped clamp holding part that clamps the water inlet connector and the outside of the water flow sensor. The lower end of the arc-shaped clamp holding part is connected to a clamp guide part that guides the elastic clamp to open so that the arc-shaped clamp holding part is sleeved on the outside of the water inlet connector and the water flow sensor. The vertical clamp connecting part, the arc-shaped clamp holding part and the clamp guide part are provided with clamp through holes for the annular protrusion of the connector and the annular protrusion of the water flow sensor to extend out.
[0013] The heat exchanger described above is characterized in that: the outlet end of the water flow sensor is provided with a water flow sensor plug-in end that extends into the inlet end of the water inlet connector.
[0014] The heat exchanger described above is characterized in that a water flow sensor sealing ring is provided between the water flow sensor and the water flow sensor connector.
[0015] The beneficial effects of this utility model are:
[0016] This invention connects an inlet connector to the water inlet end of a heat exchanger water pipe. An ultraviolet (UV) sterilizer is installed on the inlet connector to purify the water inside. This UV sterilizer kills bacteria, viruses, and pathogens in the tap water. Under the heating effect of the heat exchanger, these bacteria, viruses, and pathogens are effectively killed, achieving sterilization and disinfection without adding any chemicals and without altering the taste or composition of the water. Simultaneously, a clamping device is installed between the inlet connector and the water flow sensor to lock them together. This clamping device allows for easy connection between the inlet connector and the water flow sensor, and enables quick installation of the UV sterilizer in the heat exchanger's inlet water path. The structure is simple and installation is convenient. [Image Description]
[0017] Figure 1 This is a diagram showing the internal structure of the gas water heater of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of this utility model;
[0019] Figure 3 This is an exploded view of Embodiment 1 of the present utility model;
[0020] Figure 4This is a cross-sectional view of the water inlet connector according to Embodiment 1 of this utility model;
[0021] Figure 5 This is a cross-sectional view of the water inlet connector in Embodiment 2 of this utility model. [Detailed Implementation]
[0022] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.
[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, descriptions involving "preferred," "second-best," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "preferred" or "second-best" may explicitly or implicitly include at least one of those features.
[0024] like Figure 1-5 As shown, a heat exchanger includes a heat exchanger body 1, a heat exchanger water pipe 11 mounted on the heat exchanger body 1, an inlet connector 2 connected to the inlet end of the heat exchanger water pipe 11, a sterilizer 3 for purifying the water in the inlet connector 2 mounted on the inlet connector 2, a water flow sensor 4 connected to the inlet end of the inlet connector 2, and a clamping member 5 for locking the inlet connector 2 and the water flow sensor 4 between the inlet end of the inlet connector 2 and the outlet end of the water flow sensor 4. The sterilizer 3 is an ultraviolet sterilizer. In this invention, the sterilizer 3 purifies and sterilizes the tap water in the inlet connector 2, and the heating action of the heat exchanger body 1 provides secondary sterilization and disinfection, greatly reducing bacteria, viruses, and pathogens in the tap water. This reduces the health impact on users after use, and requires no chemical additives, nor does it alter the taste or composition of the water. Meanwhile, an inlet connector 2 is connected to the inlet end of the heat exchanger water pipe 11, and a sterilizer 3 is mounted on the inlet connector 2. A clamp 5 secures the inlet connector 2 to the water flow sensor 4, enabling a convenient connection between them. This also allows the sterilizer 3 to be quickly installed on the heat exchanger's inlet water path, simplifying the structure and facilitating installation. In practical applications, the ultraviolet sterilizer utilizes specific wavelengths of ultraviolet light, primarily the 200-280nm UVC band, to destroy the DNA or RNA structure of microorganisms, thereby effectively inhibiting their reproduction and growth.
[0025] like Figure 2-5As shown, a mounting base 21 is provided on the side of the water inlet connector 2. A mounting base through hole 22 is provided inside the mounting base 21. The sterilizer 3 is placed inside the mounting base through hole 22, with its sterilizing end extending into the through hole 22. A pressure plate 6 is provided on the top cover of the mounting base through hole 22 to fix the sterilizer 3 inside. The pressure plate 6 is connected to the mounting base 21 by screws. The pressure plate 6 allows the sterilizer 3 to be quickly installed into the mounting base through hole 22 of the mounting base 21, facilitating installation, maintenance, and replacement.
[0026] like Figure 3-5 As shown, a sterilizer sealing ring 7 is provided between the sterilizer 3 and the mounting base through hole 22, which improves the sealing between them.
[0027] like Figure 3-4 In the embodiment shown, a sterilizer groove 31 is provided on the outer side of the sterilizer 3, and a sterilizer sealing ring 7 is fitted on the sterilizer groove 31 to improve the sealing performance.
[0028] like Figure 5 In the embodiment shown, the inner sidewall of the mounting seat through hole 22 is provided with a mounting seat groove 23 at the outer opening position, and the sterilizer sealing ring 7 is disposed between the sterilizer 3 and the mounting seat groove 23 to improve the sealing performance.
[0029] like Figure 2-3 As shown, the outer side of the inlet end of the water inlet connector 2 is provided with a connector annular protrusion 24, and the outer side of the outlet end of the water flow sensor 4 is provided with a water flow sensor annular protrusion 41 connected to the connector annular protrusion 24. The clamping member 5 is clamped between the connector annular protrusion 24 and the water flow sensor annular protrusion 41. By clamping the connector annular protrusion 24 and the water flow sensor annular protrusion 41 connected by the clamping member 5, the water inlet connector 2 and the water flow sensor 4 can be quickly and tightly connected, which is convenient for assembly and disassembly.
[0030] like Figure 2-3As shown, the clamping member 5 is an elastic clamp, which includes a horizontal clamping member connecting part 51. The horizontal clamping member connecting part 51 has a vertical clamping member connecting part 52 on both sides, which is arranged downward. The lower end of the vertical clamping member connecting part 52 is connected to an arc-shaped clamping member holding part 53 that clamps the water inlet connector 2 and the water flow sensor 4. The lower end of the arc-shaped clamping member holding part 53 is connected to a clamping member guide part 54 that guides the elastic clamping member to open so that the arc-shaped clamping member holding part 53 is sleeved on the outside of the water inlet connector 2 and the water flow sensor 4. The vertical clamping member connecting part 52, the arc-shaped clamping member holding part 53 and the clamping member guide part 54 are provided with clamping member through holes 55 for the connector annular protrusion 24 and the water flow sensor annular protrusion 41 to extend out. After the water inlet connector 2 is connected to the water flow sensor 4, the annular flange 24 of the connector and the annular flange 41 of the water flow sensor are connected. Then, the guide portions 54 and the through holes 55 of the elastic clamping edge on both sides are placed on the annular flange 24 and the annular flange 41 of the water flow sensor. The elastic clamping edge is pushed down to open the arc-shaped clamping portions 53 on both sides and fasten them to the outside of the water inlet connector 2 and the water flow sensor 4. The annular flange 24 of the connector and the annular flange 41 of the water flow sensor are fastened to the through holes 55 of the clamping portions 53 at the position of the arc-shaped clamping portions 53, thereby locking the water inlet end of the water inlet connector 2 and the water outlet end of the water flow sensor 4.
[0031] like Figure 3-5 As shown, the outlet end of the water flow sensor 4 is provided with a water flow sensor plug end 42 that plugs into the inlet end of the water inlet connector 2, which allows for a tighter connection between the inlet end of the water inlet connector 2 and the outlet end of the water flow sensor 4. A water flow sensor sealing ring 8 is provided between the water flow sensor 4 and the water flow sensor plug end 42. A plug end groove is provided on the outer side of the water flow sensor plug end 42 for positioning and inserting the water flow sensor sealing ring 8, thereby improving the sealing performance between the inlet end of the water inlet connector 2 and the outlet end of the water flow sensor 4.
[0032] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. A heat exchanger, characterized in that: It includes a heat exchanger body (1), a heat exchanger water pipe (11) is provided on the heat exchanger body (1), a water inlet connector (2) is connected to the water inlet end of the heat exchanger water pipe (11), a sterilizer (3) is provided on the water inlet connector (2) to purify the water flowing through the water inlet connector (2), a water flow sensor (4) is connected to the water inlet end of the water inlet connector (2), and a clamping member (5) is provided between the water inlet connector (2) and the water flow sensor (4) to lock the water inlet connector (2) and the water flow sensor (4).
2. A heat exchanger according to claim 1, characterized in that: The water inlet connector (2) is provided with a mounting base (21) on its side. The mounting base (21) is provided with a mounting base through hole (22) that passes through the mounting base (21). The sterilizer (3) is provided in the mounting base through hole (22). The mounting base through hole (22) is covered with a pressure plate (6) that fixes the sterilizer (3) in the mounting base through hole (22).
3. A heat exchanger according to claim 2, characterized in that: A sterilizer sealing ring (7) is provided between the sterilizer (3) and the mounting base through hole (22).
4. A heat exchanger according to claim 3, characterized in that: The sterilizer (3) has a sterilizer groove (31) on its outer side, and the sterilizer sealing ring (7) is fitted on the sterilizer groove (31).
5. A heat exchanger according to claim 3, characterized in that: The inner side wall of the mounting seat through hole (22) is provided with a mounting seat groove (23) at the outer opening position, and the sterilizer sealing ring (7) is provided between the sterilizer (3) and the mounting seat groove (23).
6. A heat exchanger according to any one of claims 1-5, characterized in that: The sterilizer (3) is an ultraviolet sterilizer.
7. A heat exchanger according to claim 1, characterized in that: The water inlet connector (2) has a connector annular protrusion (24) on the outer side of the water inlet end, and the water flow sensor (4) has a water flow sensor annular protrusion (41) connected to the connector annular protrusion (24) on the outer side of the water outlet end. The clamping member (5) is clamped between the connector annular protrusion (24) and the water flow sensor annular protrusion (41).
8. A heat exchanger according to claim 7, characterized in that: The clamping member (5) is an elastic clamping piece. The elastic clamping piece includes a horizontal clamping piece connecting part (51). The horizontal clamping piece connecting part (51) has a vertical clamping piece connecting part (52) on both sides. The lower end of the vertical clamping piece connecting part (52) is connected to an arc-shaped clamping piece holding part (53) that clamps the water inlet connector (2) and the water flow sensor (4). The lower end of the arc-shaped clamping piece holding part (53) is connected to a clamping piece guide part (54) that guides the elastic clamping piece to open so that the arc-shaped clamping piece holding part (53) is sleeved on the water inlet connector (2) and the water flow sensor (4). The vertical clamping piece connecting part (52), the arc-shaped clamping piece holding part (53) and the clamping piece guide part (54) are provided with clamping piece through holes (55) for the connector annular protrusion (24) and the water flow sensor annular protrusion (41) to extend out.
9. A heat exchanger according to claim 1, characterized in that: The outlet end of the water flow sensor (4) is provided with a water flow sensor plug-in end (42) that extends into the inlet end of the water inlet connector (2).
10. A heat exchanger according to claim 9, characterized in that: A water flow sensor sealing ring (8) is provided between the water flow sensor (4) and the water flow sensor connector (42).