Waterproof system of constant-temperature water heater and constant-temperature water heater

Abstract

The invention discloses a waterproof system of a constant-temperature water heater and the constant-temperature water heater, and the waterproof system of the constant-temperature water heater is arranged at a signal line connecting end of a sensor and a motor outside the constant-temperature water heater. The invention further provides the constant-temperature water heater which is provided with the waterproof system. The waterproof system is arranged on the constant-temperature water heater, the hidden cover can serve as a first peripheral barrier to prevent water outside the water heater from being splashed to the signal line connecting end, and meanwhile the waterproof box is arranged in the hidden cover to prevent the signal line wiring terminal from making contact with water; a waterproof box is arranged in the stepping motor, a water stop sponge and a water retaining rib are further arranged in the waterproof box to prevent a signal line wiring terminal from making contact with water, a motor box, waterproof glue and a motor water stop sponge are arranged to prevent the signal line wiring terminal of the stepping motor from making contact with water, and therefore a multi-layer waterproof system is formed, and the signal problem caused by the fact that the signal line wiring terminal makes contact with water is solved.

Description

Technical Field

[0001] The present invention belongs to the field of water heaters, and more specifically, relates to a waterproof system for a constant temperature water heater and a constant temperature water heater. Background Art

[0002] As a water heater that automatically adjusts the temperature control, a constant temperature water heater needs to install corresponding sensors on the inlet pipe and the outlet pipe of the water heater and a stepping motor on the outlet pipe to achieve automatic control of the water flow and water temperature. Since the inlet pipe and the outlet pipe are located outside the constant temperature water heater, and the constant temperature water heater is installed in a water-using environment, it is inevitable that users will cause splashing water outside the water heater when using water, resulting in water splashing on the signal wire connection ends of the sensors and the stepping motor, leading to signal distortion problems. Therefore, certain waterproof measures are required for protection.

[0003] In view of this, the present invention is specifically proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a waterproof system for a constant temperature water heater, which can better prevent the signal wire connection ends from contacting water and causing signal problems.

[0005] Another object of the present invention is to provide a constant temperature water heater.

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] For the waterproof system of the constant temperature water heater, a waterproof system is provided at the signal wire connection ends of the sensors and the motor outside the constant temperature water heater.

[0008] Since the flow sensor on the inlet pipe of the constant temperature water heater, the temperature sensor on the outlet pipe, and the stepping motor are installed outside the water heater, and the above sensors and the stepping motor need to be connected to the control system through signal wires, when users use water, it may splash on the signal wire connection ends of the flow sensor, the temperature sensor, and the stepping motor, causing problems such as signal distortion. In order to avoid the above signal wire connection ends from contacting water, a waterproof system is provided at the signal wire connection ends.

[0009] Furthermore, the waterproof system includes a waterproof box, and signal wire terminal blocks are placed inside the waterproof box, and the signal wires are connected to the signal wire terminal blocks.

[0010] Two signal wire terminal blocks are provided inside the waterproof box. One end of one signal wire terminal block is connected to the temperature sensor on the outlet pipe of the water heater through a signal wire, and one end of the other signal wire terminal block is connected to the flow sensor on the inlet pipe of the water heater through a signal wire. The other ends of the two signal wire terminal blocks are both connected to the control system through signal wires.

[0011] Since the signal bus from the control system branches out and is respectively connected to two signal line terminals, and the two signal line terminals are respectively connected to the above-mentioned temperature sensor and flow sensor for signal detection. After the signal line terminals come into contact with water, the signals of the temperature sensor and the flow sensor will be distorted, resulting in incorrect detection. To avoid contact with water, a waterproof box is provided and the signal line terminals are placed in the waterproof box.

[0012] Furthermore, the waterproof system further includes a water-stop sponge, which is arranged at the wire outlet end inside the waterproof box to isolate the wire outlet hole at the wire outlet end and the signal line terminals.

[0013] Since the signal line has to pass through the waterproof box to be connected to the temperature sensor, flow sensor and control system, wire outlet holes need to be provided on the wall of the wire outlet end of the waterproof box. However, the setting of the wire outlet holes increases the possibility of water entering the waterproof box. Therefore, in order to better prevent water from entering the waterproof box through the wire outlet holes and then causing the signal line terminals to come into contact with water, the waterproof system of the present invention further includes a water-stop sponge. The water-stop sponge is arranged at the wire outlet end inside the waterproof box to isolate the wire outlet hole at the wire outlet end of the waterproof box and the signal line terminals. Even if water enters the waterproof box through the wire outlet holes, it is blocked by the water-stop sponge and thus cannot further reach the signal line terminals in the waterproof box, avoiding signal distortion caused by the signal line terminals coming into contact with water.

[0014] Furthermore, the waterproof system further includes a water-blocking rib, which is arranged inside the waterproof box and located between the water-stop sponge and the signal line terminals.

[0015] To further prevent water from entering the waterproof box and coming into contact with the signal line terminals, a water-blocking rib is also provided in the waterproof box. The water-blocking rib is arranged between the water-stop sponge and the signal line terminals, thus forming a triple waterproof barrier of the waterproof box, water-stop sponge and water-blocking rib. The water-blocking rib is provided with a wire-passing hole to facilitate the signal line to pass through the water-blocking rib.

[0016] Furthermore, the waterproof system further includes a motor box, which covers the signal line connection end of the motor on the water outlet pipe.

[0017] In order to achieve the intelligent control of the water heater and improve the convenience of using the water heater, a motor is also installed on the outlet pipe of the water heater. The motor is a stepper motor, which is connected to the control system of the water heater. The stepper motor controls the water valve switch of the outlet pipe of the water heater, thereby controlling the water flow rate and water temperature of the water heater, enabling the water heater to automatically adjust the water temperature and water flow rate according to user needs, realizing the automatic control of the water heater, and ensuring the normal operation of the water heater. Since the stepper motor needs to be connected to the control system of the water heater through a signal line, in order to prevent the signal line connection end of the stepper motor from contacting water, in the present invention, the waterproof system further includes a motor box, which covers the signal line connection end of the stepper motor on the outlet pipe. Through the protection of the motor box, water splashing is prevented from falling on the signal line connection end of the stepper motor.

[0018] Furthermore, the waterproof system further includes a waterproof glue, which is coated on the signal line connection end of the motor on the outlet pipe.

[0019] As described above, the stepper motor needs to be connected to the control system of the water heater through a signal line. Then, when connecting to the signal line at the signal line connection end of the stepper motor, the signal line is exposed at the connection point, and the problem of the exposed part contacting water may occur. To solve this problem, the waterproof system in the present invention further includes a waterproof glue, which is coated on the signal line connection end of the motor on the outlet pipe, thereby coating the signal line connection end of the stepper motor and the exposed part of the signal line with the waterproof glue to form a waterproof layer, further enhancing the waterproof ability and avoiding signal failure.

[0020] Furthermore, the waterproof system further includes a motor water-stop sponge, which is plugged at the motor signal line outlet of the motor box.

[0021] Since the signal line connected to the stepper motor has to extend out of the motor box to be connected to the control system, the motor signal line outlet of this motor box is also prone to water ingress, which may cause the signal line connection end of the stepper motor to contact water. To avoid this problem, the waterproof system in the present invention further includes a motor water-stop sponge, which is plugged at the motor signal line outlet of the motor box. By using the water-stopping property and good fitting property of the motor water-stop sponge, the motor signal line passes through the motor water-stop sponge, thereby realizing the waterproof function.

[0022] Furthermore, the waterproof system further includes a hidden cover, which shields the waterproof box, the motor on the outlet pipe, the sensor on the inlet pipe, and the sensor on the outlet pipe.

[0023] The foregoing waterproof box, motor box, water-stop sponge, waterproof coating, and water-blocking ribs form a series of waterproof measures. To better prevent water from splashing on the signal line connection ends over a larger range, the waterproof system in the present invention further includes a hidden cover. The hidden cover shelters the waterproof box, the stepping motor on the water outlet pipe and the motor box, the sensor on the water inlet pipe, and the sensor on the water outlet pipe, thereby forming a large barrier to prevent water from splashing on the signal line connection ends of the waterproof box, the stepping motor on the water outlet pipe, the sensor on the water inlet pipe, and the sensor on the water outlet pipe. That is, the hidden cover forms an outer waterproof barrier, while the waterproof box, motor box, water-stop sponge, waterproof coating, and water-blocking ribs form a further waterproof barrier. The multi-level waterproof barriers can waterproof better and more effectively, avoiding signal problems caused by the signal line connection ends contacting water.

[0024] Furthermore, an opening is provided at the bottom of the hidden cover for the water inlet pipe and the water outlet pipe to extend out from the inside of the hidden cover.

[0025] Since the water inlet pipe and the water outlet pipe are relatively long, and the hidden cover is designed to prevent water from splashing on the waterproof box, the motor on the water outlet pipe, the sensor on the water inlet pipe, and the sensor on the water outlet pipe, causing the signal line connection ends to contact water, rather than to avoid water from splashing on the entire water inlet pipe and water outlet pipe, an opening is provided at the bottom of the hidden cover for the water inlet pipe and the water outlet pipe to extend out from the inside of the hidden cover.

[0026] Since an opening is provided at the bottom of the hidden cover, water outside the water heater may splash into the hidden cover from the opening and then enter the waterproof box. Therefore, the water-blocking ribs in the waterproof box are arranged at one end of the waterproof box close to the opening at the bottom of the hidden cover to enhance the water-blocking ability of the waterproof box and avoid the problem of signal distortion caused by the signal line terminals in the waterproof box contacting water.

[0027] The present invention also provides a constant-temperature water heater having the waterproof system described in any one of the above.

[0028] Since a flow sensor is provided on the water inlet pipe of the constant temperature water heater, a temperature sensor and a stepping motor are provided on the water outlet pipe, and the flow sensor, the temperature sensor and the stepping motor all need to be connected to the control system of the water heater by signal wires. Also, since the signal wire connection ends are located outside the water heater, the water outside the water heater may splash on the signal wire connection ends, resulting in problems such as signal distortion. In order to prevent the water outside the water heater from splashing on the signal wire connection ends, the above waterproof system is provided for the constant temperature water heater. The hidden cover can serve as the first peripheral barrier to prevent the water outside the water heater from splashing on the signal wire connection ends. At the same time, a waterproof box is provided inside the hidden cover to shield the signal wire terminal from contacting water, and a water-stop sponge and a water-blocking rib are further provided in the waterproof box to prevent the signal wire terminal from contacting water. A motor box, waterproof glue, and a motor water-stop sponge are provided to shield the signal wire connection end of the stepping motor from contacting water, thereby forming a multi-level waterproof system to prevent the signal wire connection end from contacting water and causing signal problems.

[0029] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0030] The waterproof system of the constant temperature water heater and the constant temperature water heater of the present invention. Among them, the waterproof system of the constant temperature water heater sets a waterproof system at the signal wire connection ends of the sensors and motors outside the constant temperature water heater. The present invention also provides a constant temperature water heater with the above waterproof system. The constant temperature water heater sets the above waterproof system. The hidden cover can serve as the first peripheral barrier to prevent the water outside the water heater from splashing on the signal wire connection ends. At the same time, a waterproof box is provided inside the hidden cover to shield the signal wire terminal from contacting water, and a water-stop sponge and a water-blocking rib are further provided in the waterproof box to prevent the signal wire terminal from contacting water. A motor box, waterproof glue, and a motor water-stop sponge are provided to shield the signal wire connection end of the stepping motor from contacting water, thereby forming a multi-level waterproof system to prevent the signal wire connection end from contacting water and causing signal problems.

[0031] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0032] The accompanying drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the accompanying drawings:

[0033] Figure 1 is a schematic diagram of the waterproof system of the constant temperature water heater of the present invention (excluding the hidden cover);

[0034] Figure 2It is a schematic diagram of the installation of the motor box in the waterproof system of the constant-temperature water heater of the present invention;

[0035] Figure 3 It is a schematic diagram of the installation of the motor box and the motor water-stop sponge in the waterproof system of the constant-temperature water heater of the present invention;

[0036] Figure 4 It is a schematic diagram of the installation of the waterproof box, the water-stop sponge and the water-blocking rib in the waterproof system of the constant-temperature water heater of the present invention.

[0037] In the figure: 1, water inlet pipe; 2, water outlet pipe; 3, stepper motor; 4, flow sensor; 5, temperature sensor; 6, waterproof box; 7, motor box; 8, motor water-stop sponge; 9, signal bus; 10, motor signal wire; 11, signal wire terminal; 12, water-stop sponge; 13, water-blocking rib.

[0038] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0040] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0041] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Combined with Figures 1 to 4 As shown, in the waterproof system of the constant-temperature water heater of the present invention, a waterproof system is provided at the signal wire connection ends of the sensors and motors outside the constant-temperature water heater.

[0043] Since the flow sensor 4 on the inlet pipe 1 of the constant-temperature water heater, the temperature sensor 5 on the outlet pipe 2, and the motor are installed outside the water heater, where the motor is a stepper motor 3, and the above sensors and the stepper motor 3 need to be connected to the control system through signal lines. When the user uses water, it may splash on the signal line connection ends of the flow sensor 4, the temperature sensor 5, and the stepper motor 3, causing problems such as signal distortion. In order to avoid the contact of the signal line connection ends with water, a waterproof system is provided at the signal line connection ends.

[0044] The control system of the water heater is connected to the flow sensor 4, the temperature sensor 5, and the stepper motor 3 through signal lines. Specifically, the control system of the water heater is branched through the signal bus 9. One path is the motor signal line 10 connected to the stepper motor 3, and the other path is further branched to connect to two signal line terminals 11 respectively. The two signal line terminals 11 are then respectively connected to the flow sensor 4 on the inlet pipe 1 and the temperature sensor 5 on the outlet pipe 2 of the water heater through signal lines.

[0045] In order to prevent the signal line terminals 11 from contacting water, the waterproof system in the present invention includes a waterproof box 6. Two signal line terminals 11 are arranged inside the waterproof box 6. One end of one signal line terminal 11 is connected to the temperature sensor 5 on the outlet pipe 2 of the water heater through a signal line, and one end of the other signal line terminal 11 is connected to the flow sensor 4 on the inlet pipe 1 of the water heater through a signal line. The other ends of the two signal line terminals 11 are respectively connected to a signal line. After these two signal lines are combined into one strand, they pass through the waterproof box and then merge with the motor signal line 10 to form a signal bus 9 to connect to the control system.

[0046] Setting the waterproof box 6 and placing the two signal line terminals 11 in the waterproof box 6 can avoid the signal line terminals 11 from contacting the water splashed outside the water heater, and avoid the problem of incorrect detection caused by signal distortion of the temperature sensor 5 and the flow sensor 4.

[0047] Since the signal lines need to pass through the waterproof box 6 and be connected to the temperature sensor 5, the flow sensor 4, and the control system respectively, wire outlet holes are provided on the walls at both ends of the waterproof box 6 to form wire outlet ends. In this embodiment, wire outlet holes are provided on the top wall and the bottom wall of the waterproof box 6. Then, both the top and the bottom of the waterproof box 6 are wire outlet ends. The tops of the two signal line terminals 11 are respectively connected to the signal lines. After the two signal lines are combined into one, they pass through the wire outlet hole at the top of the waterproof box 6 and out of the waterproof box 6. The tops of the two signal line terminals 11 are respectively connected to the signal lines. The two signal lines respectively pass through the two wire outlet holes at the bottom of the waterproof box 6 and are then connected to the flow sensor 4 and the temperature sensor 5 respectively. However, the setting of the wire outlet holes increases the possibility of water entering the waterproof box 6. Therefore, in order to better prevent water from entering the waterproof box 6 through the wire outlet holes and then contacting the signal line terminals 11, and further improve the waterproof ability, the waterproof system of the present invention further includes a water-stop sponge 12. As Figure 4 shown, the water-stop sponge 12 is provided at the wire outlet end inside the waterproof box 6. The water-stop sponge 12 isolates the wire outlet holes at the wire outlet end of the waterproof box 6 from the signal line terminals 11. Even if water enters the waterproof box 6 through the wire outlet holes, it is blocked by the water-stop sponge 12 and thus cannot further reach the signal line terminals 11 in the waterproof box 6, avoiding signal distortion caused by the signal line terminals 11 contacting water.

[0048] In other embodiments, only one wire outlet hole can be provided at the bottom of the waterproof box 6. After the two signal lines are combined into one, they pass through this wire outlet hole at the bottom and then are branched to be connected to the flow sensor 4 and the temperature sensor 5 respectively. Or, only one wire outlet hole is provided in the whole waterproof box 6. All the signal lines are combined into one and pass through this wire outlet hole and then are branched according to needs, thereby reducing the number of wire outlet holes and minimizing the water inlet problem caused by the number of wire outlet holes to the greatest extent.

[0049] In this embodiment, the waterproof system further includes a water-blocking rib 13, as Figure 4 shown. In order to further prevent water from entering the waterproof box 6 and contacting the signal line terminals 11, a water-blocking rib 13 is also provided in the waterproof box 6. The water-blocking rib 13 is provided between the water-stop sponge 12 and the signal line terminals 11, thus forming a triple waterproof barrier of the waterproof box 6, the water-stop sponge 12, and the water-blocking rib 13. The water-blocking rib 13 is provided with wire-passing holes to facilitate the signal lines to pass through the water-blocking rib 13.

[0050] In order to achieve the intelligent control of the water heater and improve the convenience of using the water heater, a stepping motor 3 is installed on the outlet pipe 2 of the water heater. The stepping motor 3 is connected to the control system of the water heater. The stepping motor 3 controls the water valve switch of the outlet pipe 2 of the water heater, thereby controlling the water flow rate and water temperature of the water heater, enabling the water heater to automatically adjust the water flow rate and water temperature according to user needs, realizing the automatic control of the water heater, and ensuring the normal operation of the water heater. Since the stepping motor 3 needs to be connected to the control system of the water heater through the motor signal line 10, in this embodiment, the motor signal line 10 is connected to the signal bus 9 formed by combining with the signal lines that are combined into one and extending from the waterproof box 6 and then connected to the control system of the water heater.

[0051] In order to prevent the signal line connection end of the stepping motor 3 from contacting water, in the present invention, the waterproof system further includes a motor box 7. The motor box 7 covers the signal line connection end of the stepping motor 3 on the outlet pipe 2. Figure 2 、 3 As shown in the figure, through the protection of the motor box 7, water splashing is prevented from falling onto the signal line connection end of the stepping motor 3.

[0052] As mentioned above, the stepping motor 3 needs to be connected to the control system of the water heater through the motor signal line 10. Then, at the connection between the signal line connection end of the stepping motor 3 and the motor signal line 10, the signal line is exposed, and the problem that the exposed part may contact water may occur. To solve this problem, the waterproof system in the present invention further includes waterproof glue. The waterproof glue is coated on the signal line connection end of the stepping motor 3 on the outlet pipe 2, thereby coating the exposed part where the signal line connection end of the stepping motor 3 is connected to the motor signal line 10 with waterproof glue to form a waterproof layer, further enhancing the waterproof ability and avoiding signal failures.

[0053] Since the motor signal line 10 connected to the stepping motor 3 has to extend out of the motor box 7 to be connected to the control system, the outlet of the motor signal line 10 on this motor box 7 is also prone to water ingress, resulting in the signal line connection end of the stepping motor 3 contacting water. To avoid this problem, the waterproof system in the present invention further includes a motor water-stop sponge 8, which is blocked at the outlet of the motor signal line 10 on the motor box 7, as Figure 3 shown in the figure. Utilizing the water-stop property and good conformability of the motor water-stop sponge 8, the motor signal line 10 passes through the motor water-stop sponge 8, thereby realizing the waterproof function.

[0054] The foregoing waterproof box 6, motor box 7, water-stop sponge 12, waterproof coating glue and water-blocking rib 13 form a series of waterproof measures. In order to better prevent water from splashing on the signal line connection ends in a larger range, the waterproof system in the present invention further includes a hidden cover. The hidden cover houses the waterproof box 6, the stepping motor 3 on the water outlet pipe 2 and the motor box 7, the flow sensor 4 on the water inlet pipe 1, and the temperature sensor 5 on the water outlet pipe 2 for shielding, thereby forming a large barrier to prevent water from splashing on the signal line connection ends of the waterproof box 6, the stepping motor 3 on the water outlet pipe 2, the flow sensor 4 on the water inlet pipe 1, and the temperature sensor 5 on the water outlet pipe 2. That is, the hidden cover forms an outer waterproof barrier, while the waterproof box 6, the motor box 7, the water-stop sponge 12, the waterproof coating glue, and the water-blocking rib 13 form a further waterproof barrier. The multi-level waterproof barriers can waterproof better and more effectively, avoiding signal problems caused by the signal line connection ends contacting water.

[0055] Since the water inlet pipe 1 and the water outlet pipe 2 are relatively long, and the hidden cover is designed to prevent water from splashing on the waterproof box 6, the stepping motor on the water outlet pipe 2, the flow sensor 4 on the water inlet pipe 1, and the temperature sensor 5 on the water outlet pipe 2, causing the signal line connection ends to contact water, rather than to avoid water from splashing on the entire water inlet pipe 1 and water outlet pipe 2, an opening is provided at the bottom of the hidden cover for the water inlet pipe 1 and the water outlet pipe 2 to extend out from the inside of the hidden cover.

[0056] Due to the opening provided at the bottom of the hidden cover, water outside the water heater may splash into the hidden cover from the opening and then enter the waterproof box 6. Therefore, in this embodiment, the water-blocking rib 13 in the waterproof box 6 is arranged at one end of the waterproof box 6 close to the opening at the bottom of the hidden cover to enhance the water-blocking ability of the waterproof box 6 and avoid the problem of signal distortion caused by the signal line terminal 11 in the waterproof box 6 contacting water. In other embodiments, two water-blocking ribs can also be provided in the waterproof box 6, and the two water-blocking ribs 13 are respectively arranged between the upper water-stop sponge 12 and the upper end of the signal line terminal 11, and between the lower water-stop sponge 12 and the lower end of the signal line terminal 11.

[0057] The present invention also provides a constant-temperature water heater having the above waterproof system.

[0058] Since a flow sensor 4 is provided on the water inlet pipe 1 of the constant-temperature water heater, a temperature sensor 5 and a stepping motor 3 are provided on the water outlet pipe 2, and the flow sensor 4, the temperature sensor 5 and the stepping motor 3 all need to be connected to the control system of the water heater by signal lines. The flow sensor 4 and the temperature sensor 5 need to be connected to the signal line terminal 11 first, and then the signal line terminal 11 is connected to the control system of the water heater through the signal line. Since the signal line terminal 11 and the signal line connection end of the stepping motor 3 are located outside the water heater, the water outside the water heater may splash on the signal line connection end, resulting in problems such as signal distortion. In order to prevent the water outside the water heater from splashing on the signal line connection end, the above waterproof system is provided for the constant-temperature water heater. The hidden cover can serve as the first peripheral barrier to prevent the water outside the water heater from splashing on the signal line connection end. At the same time, a waterproof box 6 is provided inside the hidden cover to prevent the signal line terminal 11 from contacting water, and a water-stop sponge 12 and a water-blocking rib 13 are further provided in the waterproof box 6 to prevent the signal line terminal 11 from contacting water. A motor box 7, waterproof glue, and a motor water-stop sponge 8 are provided to prevent the signal line connection end of the stepping motor 3 from contacting water, thereby forming a multi-level waterproof system to prevent the signal line connection end from contacting water and causing signal problems.

[0059] The waterproof system of the constant-temperature water heater and the constant-temperature water heater of the present invention, wherein the waterproof system of the constant-temperature water heater is provided with a waterproof system at the signal line connection ends of the sensors and motors outside the constant-temperature water heater. The present invention also provides a constant-temperature water heater with the above waterproof system. The constant-temperature water heater is provided with the above waterproof system. The hidden cover can serve as the first peripheral barrier to prevent the water outside the water heater from splashing on the signal line connection end. At the same time, a waterproof box is provided inside the hidden cover to prevent the signal line terminal from contacting water, and a water-stop sponge and a water-blocking rib are further provided in the waterproof box to prevent the signal line terminal from contacting water. A motor box, waterproof glue, and a motor water-stop sponge are provided to prevent the signal line connection end of the stepping motor from contacting water, thereby forming a multi-level waterproof system to prevent the signal line connection end from contacting water and causing signal problems.

[0060] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent can make some changes or modifications to the above-disclosed technical content within the scope of the technical solution of the present invention to make equivalent embodiments of equivalent changes. The implementation schemes in the above embodiments can also be further combined or replaced. However, as long as it does not deviate from the technical content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. The waterproof system of a constant-temperature water heater, characterized in that: A waterproof system is provided at the signal line connection ends of the sensors and motors outside the constant-temperature water heater.

2. The waterproof system of the constant temperature water heater according to claim 1, characterized in that: It includes a waterproof box, in which signal line terminal blocks are placed, and the signal lines are connected to the signal line terminal blocks.

3. The constant temperature water heater waterproof system according to claim 2, characterized in that: It also includes a water-stop sponge, which is arranged at the outgoing line end in the waterproof box to isolate the outgoing line hole of the outgoing line end and the signal line terminal block.

4. The waterproof system of the constant temperature water heater according to claim 3, characterized in that: It also includes a water-blocking rib, which is arranged in the waterproof box and located between the water-stop sponge and the signal line terminal block.

5. The constant temperature water heater waterproof system according to claim 4, characterized in that: It also includes a motor box, which covers the signal line connection end of the motor on the water outlet pipe.

6. The waterproof system of the constant temperature water heater according to claim 5, characterized in that: It also includes waterproof glue, which is coated on the signal line connection end of the motor on the water outlet pipe.

7. The constant temperature water heater waterproof system according to claim 6, characterized in that: It also includes a motor water-stop sponge, which is sealed at the motor signal line outlet on the motor box.

8. The waterproof system of the constant temperature water heater according to claim 7, characterized in that: It also includes a hidden cover, which shields the waterproof box, the motor on the water outlet pipe, the sensors on the water inlet pipe, and the sensors on the water outlet pipe.

9. The constant temperature water heater waterproof system according to claim 8, characterized in that: An opening is provided at the bottom of the hidden cover for the water inlet pipe and the water outlet pipe to extend out from the inside of the hidden cover.

10. Constant temperature water heater, characterized in that: It has the waterproof system according to any one of claims 1-9.

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