Balanced and stable pressure difference detection module and water outlet faucet with same

Abstract

The utility model discloses a balanced and stable pressure difference detection module and a water outlet faucet with the same. The balanced and stable pressure difference detection module comprises a shell assembly, a water inlet cavity and a detection area, a water inlet channel and a water inlet detection channel which are communicated with each other are arranged in the shell assembly, and the water inlet channel is communicated with the water inlet cavity; a sliding component acting according to water inlet pressure is arranged in the detection area, a diaphragm component is arranged on the sliding component, a detection cavity and a balance cavity are defined by the opposite sides of the diaphragm component, the balance cavity is communicated with the water inlet cavity, the detection cavity is communicated with the water inlet channel and the water inlet detection channel, and the balance cavity is communicated with the water outlet channel. And one end, corresponding to the balance cavity and the detection cavity, of the sliding component is communicated with the atmosphere, and the sliding component can be pressed in time to be communicated with the electric control assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of water outlet devices, in particular to a balanced and stable differential pressure detection module and a water outlet faucet with the same. Background Art

[0002] At present, the temperature sensor at the water outlet end of the electric water faucet plays an important role in aspects such as automatically adjusting the water temperature, preventing scalding accidents, energy conservation and consumption reduction, and extending the service life of appliances. With the continuous progress of electric water faucets and the wide application of intelligent control, various functional configurations have been improved.

[0003] Especially the differential pressure switch inside the electric water faucet is activated by the inlet water pressure in the hot water mode, thereby connecting the heating component inside the electric water faucet and turning on the hot water function of the electric water faucet.

[0004] An electric water faucet in the prior art, with the publication number CN216923354U, has a diaphragm inside the differential pressure switch, and the liquid inlet detection channel communicating with the liquid inlet channel is connected upward to the inner cavity of the differential pressure switch, that is, the accommodation groove. The diaphragm receives the water flow of the liquid inlet in the accommodation groove and actuates upward to push the mechanical part to move and couple with the electrical part.

[0005] Substantially, a moving contact piece is connected to the back of the mechanical part, and a static contact piece is spaced above the upper part of the moving contact piece. That is to say, the inlet water pressure needs to overcome the gravity of the mechanical part in the water pressure switch and the elastic force of the moving contact piece at the same time, and the liquid inlet detection channel is vertically upward and extends at the top of the electric water faucet, which will cause the heating function not to be turned on when the water flow is small, that is, the hot water function is inaccurate.

[0006] In addition, when the water outlet faucet is blocked, due to the too high internal pressure of the faucet, the mechanical part may be accidentally activated, which poses a safety hazard. Summary of the Utility Model

[0007] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a balanced and stable differential pressure detection module and a water outlet faucet with the same.

[0008] The above technical purpose of the utility model is achieved through the following technical solutions: A balanced and stable differential pressure detection module includes:

[0009] A housing assembly, which forms an inlet water cavity and a detection area inside the housing assembly; an inlet water channel and an inlet water detection channel are provided inside the housing assembly, and the inlet water channel communicates with the inlet water cavity.

[0010] A sliding member that operates according to the inlet water pressure is provided in the detection area. A diaphragm member is provided on the sliding member, and a detection chamber and a balance chamber are defined on opposite sides of the diaphragm member. The balance chamber communicates with the inlet water chamber, the detection chamber communicates with the water inlet channel and the water inlet detection channel, and both ends of the sliding member corresponding to the balance chamber and the detection chamber communicate with the atmosphere.

[0011] Furthermore, a first sliding seat is provided in the detection chamber, and a second sliding seat is provided in the balance chamber. The first sliding seat and the second sliding seat communicate with the atmosphere. The sliding member includes a sliding column placed in the first sliding seat and the second sliding seat. A sealing sleeve covering the first sliding seat and the second sliding seat is provided on the diaphragm member, and the sliding column is located within the sealing sleeve.

[0012] Furthermore, the sliding column includes a first sliding column provided in the first sliding seat and a second sliding column provided in the second sliding seat. A balance channel is provided on the first sliding seat and penetrates through the housing assembly. The second sliding column is provided in the second sliding seat, and the second sliding seat is provided with a through hole.

[0013] Furthermore, the water inlet detection channel communicates vertically below the water inlet channel.

[0014] Furthermore, there is a vertical interval between the detection chamber and the balance chamber. The balance chamber communicates with the bottom of the inlet water chamber. The detection chamber is provided above the balance chamber, and both the balance chamber and the detection chamber are in a water storage state.

[0015] Furthermore, a first distance is provided between the sealing sleeve and the end of the first sliding seat, and a second distance is provided between the sealing sleeve and the end of the second sliding seat. The first distance is set to be smaller than the second distance.

[0016] Furthermore, a limiting convex portion is provided in the balance chamber. The limiting convex portion is located below the diaphragm member and supports the diaphragm member in the water inlet state.

[0017] Furthermore, the housing assembly includes a main housing and a lower housing closed at the bottom of the main housing. The inlet water chamber is defined within the main housing. The sliding member and the detection area are provided between the main housing and the lower housing. A water guiding connecting member is also provided between the main housing and the lower housing, and the water guiding connecting member communicates the inlet water chamber and the balance chamber.

[0018] Furthermore, the diaphragm member is integrally formed on the sliding member.

[0019] A water outlet faucet includes the above-mentioned differential pressure detection module, which includes a heating module arranged in the water inlet cavity and an electric control component docked with the sliding member. The electric control component is electrically connected to the heating module. One end of the sliding member corresponding to the balance cavity is arranged corresponding to the electric control component, and the sliding member is arranged to move towards the electric control component in the water inlet state and communicate with the electric control component.

[0020] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0021] By setting a balance cavity communicating with the water inlet cavity and a detection cavity communicating with the water inlet channel and the water inlet detection channel, after the first water inlet is completed, both the balance cavity and the detection cavity are in a water storage state. Moreover, both the balance cavity and the detection cavity communicate with the atmosphere through the housing assembly, so that they are in a stable balance state under normal conditions, achieving the effect of equal pressure in the two cavities. Thus, during the subsequent hot water outlet process, the sliding member can be timely pressed to connect the electric control component, enabling the heating module to enter the working state, so that hot water can be normally output even in the case of a small water flow, reducing the repeated start and stop of the heating module. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic cross-sectional view of the balance channel of the present utility model;

[0023] Figure 2 is Figure 1 the enlarged view of part A in

[0024] Figure 3 It is a schematic cross-sectional view of the water guiding connecting piece of the present utility model;

[0025] Figure 4 is Figure 3 the enlarged view of part B in

[0026] Figure 5 It is an exploded view of the housing assembly of the present utility model;

[0027] Figure 6 It is a schematic bottom structure view of the main housing of the present utility model;

[0028] Figure 7 It is an exploded view of the lower housing and the sliding member of the present utility model;

[0029] Figure 8 It is a schematic structural view of the water outlet faucet of the present utility model;

[0030] Figure 9 It is a schematic view of the heating module and the electric control component of the present utility model;

[0031] Figure 10Explosion schematic diagram of the heating module and the electronic control component of the present utility model;

[0032] Figure 11 Explosion schematic diagram of the housing assembly, the water inlet end cover and the hand valve of the present utility model;

[0033] In the figure:

[0034] 1. Housing assembly; 1.1 Main housing; 1.11 First socket; 1.2 Lower housing; 1.21 Second socket;

[0035] 2. Water inlet cavity; 3. Detection area; 4. Water inlet channel; 5. Water inlet detection channel; 6. Sliding member; 6.1 Diaphragm member; 6.2 First sliding column; 6.3 Second sliding column; 6.4 Sealing sleeve;

[0036] 7. Detection cavity; 7.1 First sliding seat; 7.2 Balance channel;

[0037] 8. Balance cavity; 8.1 Second sliding seat; 8.2 Limiting convex part;

[0038] 9. Water guiding connector; 10. Heating module; 11. Electronic control component; 11.1 Moving contact piece; 11.2 Static contact piece;

[0039] 13. Hand valve; 13.1 Water inlet end; 13.2 Hot water end; 13.3 Cold water end;

[0040] 14. Water inlet pipe; 15. Hot water inlet end; 16. Cold water inlet end; 17. Water inlet end cover; Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0042] It should be understood that although the terms upper, middle, lower, top, one end, etc. appear in this text to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for easy understanding, rather than for defining any directional or sequential limitations.

[0043] As Figures 1-11 shown, a pressure difference detection module with balanced stability includes:

[0044] The housing assembly 1 forms a water inlet chamber 2 and a detection area 3 within the housing assembly 1; a water inlet channel 4 and a water inlet detection channel 5 that are connected and communicated are provided within the housing assembly 1. The water inlet channel 4 communicates with the water inlet chamber 2. The detection area 3 is arranged at an interval from the water inlet chamber 2. In the hot water outlet mode, municipal water enters the water inlet chamber 2 through the water inlet channel 4, a small portion of the municipal water enters the water inlet detection channel 5, and a water inlet pressure is provided to generate a pressure difference. This pressure difference responds to the heating module 10 of the water outlet faucet, thereby starting the heating module 10;

[0045] Refer to Figure 1 and Figure 2 , a sliding member 6 that operates according to the water inlet pressure is provided within the detection area 3. A diaphragm member 6.1 is provided on the sliding member 6, and a detection chamber 7 and a balance chamber 8 are defined on opposite sides of the diaphragm member 6.1. That is, the detection chamber 7 and the balance chamber 8 are separated from each other by the diaphragm member 6.1. The detection chamber 7 communicates with the water inlet channel 4 and the water inlet detection channel 5, and both ends of the sliding member 6 corresponding to the balance chamber 8 and the detection chamber 7 communicate with the atmosphere. Among them, the balance chamber 8 communicates with the water inlet chamber 2 to receive the water flow within the water inlet chamber 2 and maintain the pressure within the chamber, while the detection chamber 7 receives the water inlet flow through the water inlet detection channel 5 and stores water therein to maintain the pressure within the chamber. On this basis, both the balance chamber 8 and the detection chamber 7 can be kept in communication with the atmosphere through the sliding member 6, thereby ensuring that both are in a critical balance state under normal conditions. During the water inlet process, the sliding member 6 can act under the action of the water inlet flow and respond quickly. In addition, in the case where the water outlet faucet is frozen or blocked in other situations and water cannot flow out, the detection chamber 7 that communicates with the atmosphere can effectively compensate and balance the internal pressure of the water outlet faucet, thereby maintaining the balance state between the balance chamber 8 and the detection chamber 7 and preventing the heating module 10 from working and dry burning in the blocked situation. In addition, when the water flow is closed, the sliding member 6 and the diaphragm member 6.1 can also respond quickly, thereby disconnecting the heating module 10.

[0046] As Figures 3 to 7 shown, as a further explanation of the housing assembly 1, the housing assembly 1 includes a main housing 1.1 and a lower housing 1.2 that closes the bottom of the main housing 1.1. The water inlet chamber 2, the water inlet channel 4, and the water inlet detection channel 5 are all defined within the main housing 1.1. The sliding member 6 and the detection area 3 are arranged between the main housing 1.1 and the lower housing 1.2. Among them, the edge portion of the diaphragm member 6.1 is abutted between the main housing 1.1 and the lower housing 1.2, so that a detection chamber 7 is defined between the diaphragm member 6.1 and the bottom of the main housing 1.1, and a balance chamber 8 is defined between the diaphragm member 6.1 and the bottom of the lower housing 1.2. A water guiding connecting member is further provided between the main housing 1.1 and the lower housing 1.2, and the water guiding connecting member communicates the water inlet chamber 2 and the balance chamber 8.

[0047] Specifically, the water guiding connector is arranged in an L shape and has an L-shaped water inlet channel 4 inside. The upper end of the water guiding connector is connected to the bottom of the main housing 1.1 and communicates with the water inlet cavity 2. The lower end of the water guiding connector extends to one side of the lower housing 1.2 and communicates with the balance cavity 8. Among them, a first socket 1.11 matching the upper end of the guiding connector is provided at the bottom of the main housing 1.1, and a second socket 1.21 matching the lower end of the guiding connector is provided on one side of the lower housing 1.2.

[0048] Sealing rings are provided at both ends of the water guiding connector.

[0049] In this embodiment, by providing an independent water guiding connector, the structural configuration between the main housing 1.1 and the lower housing 1.2 is optimized, thereby eliminating the communication channel between the two, reducing the molding difficulty, and having simple assembly.

[0050] Further referring to Figure 1 , preferably, both the water inlet detection channel 5 and the water inlet channel 4 are arranged vertically, and the water inlet detection channel 5 is vertically connected below the water inlet channel 4. In addition, there is a vertical interval between the detection cavity 7 and the balance cavity 8. The balance cavity 8 is connected to the bottom of the water inlet cavity 2, and the detection cavity 7 is provided above the balance cavity 8. Thus, after one-time water inlet, the water inlet flow can accumulate in the detection cavity 7 through the water inlet detection channel 5. According to the usage situation, when the water inlet detection channel 5 is in a water storage state, at the same time, the water flow in the water inlet cavity 2 will enter the balance cavity 8 through the water guiding connector at the bottom, and the balance cavity 8 will be in a water storage state, so that the vertically spaced balance cavity 8 and detection cavity 7 are both in a water storage state, and both are connected to the atmosphere through the sliding member 6, and then remain in a stable normal balance state.

[0051] As Figure 2 and Figure 4 shown, as a further implementation manner of the sliding member 6, a first sliding seat 7.1 is provided in the detection cavity 7, and a second sliding seat 8.1 is provided in the balance cavity 8. Both the first sliding seat 7.1 and the second sliding seat 8.1 are arranged vertically, and the first sliding seat 7.1 and the second sliding seat 8.1 are connected to the atmosphere. The sliding member 6 includes a sliding column placed in the first sliding seat 7.1 and the second sliding seat 8.1. A sealing sleeve 6.4 covering the first sliding seat 7.1 and the second sliding seat 8.1 is provided on the diaphragm member 6.1. The sliding column is located inside the sealing sleeve 6.4, so that the sealing sleeve 6.4 and the diaphragm member 6.1 bear the atmospheric pressure, and further maintain the balance between the balance cavity 8 and the detection cavity 7 through the sliding member 6. At the same time, the water seal between the balance cavity 8 and the detection cavity 7 is maintained through the sealing sleeve 6.4, realizing the synchronous action of water pressure and air pressure.

[0052] Specifically, the diaphragm member 6.1 is integrally formed on the sliding member 6. The sliding column is a vertical column, and the diaphragm member 6.1 integrally extends in the middle of the sliding column. The diaphragm member is hermetically abutted between the main housing 1.1 and the lower housing 1.2. The sealing sleeve 6.4 extends around the sliding column and is sleeved on the first sliding seat 7.1 and the second sliding seat 8.1. Preferably, in the assembled state of the sliding member 6, at least the sealing sleeve 6.4 on the first sliding seat 7.1 is in a compressed state, so that when the sliding member 6 bears the water inlet pressure and slides downward, the sealing sleeve 6.4 can be effectively prevented from disengaging downward from the first sliding seat 7.1.

[0053] As a further implementation of the detection chamber 7 and the water inlet chamber 2 receiving the action of the atmosphere,

[0054] The sliding column includes a first sliding column 6.2 arranged in the first sliding seat 7.1 and a second sliding column 6.3 arranged in the second sliding seat 8.1. The first sliding seat 7.1 and the second sliding seat 8.1 are provided with opposite openings in the vertical direction for the first sliding column 6.2 and the second sliding column 6.3 to be inserted therein. Moreover, a sliding gap for the first sliding column 6.2 and the second sliding column 6.3 to slide therein is provided in the first sliding seat 7.1 and the second sliding seat 8.1. This sliding detection is used to communicate with the atmosphere and thus act on the diaphragm member 6.1.

[0055] As Figure 2 shown, further, the first sliding seat 7.1 is provided with a balance channel 7.2. The balance channel 7.2 extends along the inner cavity of the first sliding seat 7.1 and further extends in the horizontal direction spaced from the water inlet chamber 2 until the balance channel 7.2 penetrates the housing assembly 1. Of course, under the condition that the structural conditions permit, the extension of the balance channel 7.2 only needs to avoid the water inlet channel 4, the water inlet detection channel 5 and the water inlet chamber 2 and penetrate to the surface of the main housing 1.1.

[0056] Further, the second sliding column 6.3 is arranged in the second sliding seat 8.1, and the second sliding seat 8.1 is provided with a through hole. Optionally, an electric control component 11 is arranged at the lower part of the second sliding seat 8.1. The electric control component 11 is used to connect functional components and is in an off state under normal conditions. Specifically, it is turned on by the downward movement of the second sliding column 6.3 when receiving water pressure, so as to ensure that the functional components are turned on in the normal water inlet state.

[0057] Specifically, there is a first spacing between the sealing sleeve 6.4 and the end of the first sliding seat 7.1, and a second spacing is provided between the sealing sleeve 6.4 and the end of the second sliding seat 8.1. The first spacing is set to be smaller than the second spacing. At this time, the peripheral side of the diaphragm member 6.1 is held between the main housing 1.1 and the lower housing 1.2, and the main body of the diaphragm member 6.1 is held in the balanced position. By this setting method, the purpose is to provide a sliding stroke for the sliding member 6 towards the balance chamber 8 to prevent the sealing sleeve 6.4 from detaching from the first sliding seat 7.1 under the action of the pressure difference.

[0058] In some other embodiments, a limiting convex portion 8.2 is provided in the balance chamber 8. The limiting convex portion 8.2 is located below the diaphragm member 6.1 and supports the diaphragm member 6.1 in the water inlet state. The limiting convex portion 8.2 is used to support the bottom of the diaphragm member 6.1 to prevent the sliding member 6 from moving downward excessively and driving the diaphragm member 6.1 and the sealing sleeve 6.4 thereon to detach from the first sliding seat 7.1.

[0059] Preferably, the limiting convex portion 8.2 is set to be arc-shaped to ensure the supporting area for the diaphragm member 6.1.

[0060] As shown in Figures 8 to 11 a water outlet faucet includes the above-mentioned pressure difference detection module, including: a heating module 10 arranged in the water inlet chamber 2, and an electric control component 11 docked with the sliding member 6. The electric control component 11 is electrically connected to the heating module 10. One end of the sliding member 6 corresponding to the balance chamber 8 is arranged corresponding to the electric control component 11, and the sliding member 6 is arranged to move towards the electric control component 11 in the water inlet state and communicate with the electric control component 11.

[0061] Among them, the electric control component 11 refers to a moving contact piece 11.1 and a static contact piece 11.2 arranged below the sliding member 6. The moving contact piece 11.1 is supported below the sliding member 6. Specifically, the moving contact piece 11.1 abuts against the second sliding column 6.3. In the hot water mode, the sliding member 6 moves downward under the action of the incoming water flow, thereby causing the moving contact piece 11.1 to contact the static contact piece 11.2, realizing the conduction of the electric control component 11, so that the heating module 10 is powered on.

[0062] As shown in Figure 5 and Figure 11As shown in the figure, the water outlet faucet further includes a manual valve 13 provided outside the main housing 1.1, and a water inlet end cover 17 provided at the bottom of the main housing 1.1. The manual valve 13 is provided with a water inlet end 13.1, a hot water end 13.2, and a cold water end 13.3. A water inlet pipe 14 corresponding to the water inlet end 13.1 is provided inside the water inlet end cover 17 and the main housing 1.1. A hot water inlet end 15 corresponding to the hot water end 13.2 and a cold water inlet end 16 corresponding to the cold water end 13.3 are further provided inside the main housing 1.1. Moreover, the water inlet end 13.1 on the manual valve 13 is normally connected to the water inlet pipe 14. By rotating the manual valve 13, the water inlet pipe 14 on the main housing 1.1 is selectively connected to the hot water inlet end 15 or the cold water inlet end 16.

[0063] Furthermore, the hot water inlet end 15 is communicated with the water inlet channel 4 and the water inlet detection channel 5, so that the water flow acts on the sliding member 6 and energizes the electric control component 11 at the current position, enabling the heating module 10 to be powered on and enter the working state. While the cold water inlet end 16 is directly communicated with the water inlet cavity 2. At this time, there is no water flow acting on the water inlet detection channel 5, the sliding member 6 does not move, and the heating module 10 is not turned on, thereby realizing the selection of the hot water and cold water modes of the water outlet faucet.

[0064] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A balanced and stable pressure difference detection module, characterized in that: include: A shell component (1) is provided with a water inlet chamber (2) and a detection area (3) in the shell component (1); a water inlet channel (4) and a water inlet detection channel (5) are connected in the shell component (1), and the water inlet channel (4) is connected to the water inlet chamber (2); A sliding member (6) is provided in the detection area (3) and moves according to the water inlet pressure. A diaphragm member (6.1) is provided on the sliding member (6), and opposite sides of the diaphragm member (6.1) define a detection chamber (7) and a balance chamber (8). The balance chamber (8) is connected to the water inlet chamber (2), and the detection chamber (7) is connected to the water inlet channel (4) and the water inlet detection channel (5). One end of the sliding member (6) corresponding to the balance chamber (8) and the detection chamber (7) is connected to the atmosphere.

2. A balanced and stable pressure difference detection module according to claim 1, characterized in that: A first slide seat (7.1) is provided in the detection chamber (7), a second slide seat (8.1) is provided in the balance chamber (8), the first slide seat (7.1) and the second slide seat (8.1) are connected to the atmosphere, the sliding component (6) comprises a sliding column placed in the first slide seat (7.1) and the second slide seat (8.1), the diaphragm component (6.1) is provided with a sealing sleeve (6.4) covering the first slide seat (7.1) and the second slide seat (8.1), and the sliding column is located in the sealing sleeve (6.4).

3. A balanced and stable pressure difference detection module according to claim 2, characterized in that: The sliding column comprises a first sliding column (6.2) arranged in a first sliding seat (7.1), and a second sliding column (6.3) arranged in a second sliding seat (8.1); a balancing channel (7.2) is provided on the first sliding seat (7.1), and the balancing channel (7.2) is arranged through the housing component (1); the second sliding column (6.3) is arranged in the second sliding seat (8.1), and the second sliding seat (8.1) is arranged through.

4. A balanced and stable pressure difference detection module according to claim 1, characterized in that: The water inlet detection channel (5) is vertically connected below the water inlet channel (4).

5. A balanced and stable pressure difference detection module according to claim 1, characterized in that: The detection chamber (7) and the balancing chamber (8) are vertically spaced apart, the balancing chamber (8) is connected to the bottom of the water inlet chamber (2), the detection chamber (7) is arranged above the balancing chamber (8), and the balancing chamber (8) and the detection chamber (7) are maintained in a water storage state.

6. A balanced and stable pressure difference detection module according to claim 2, characterized in that: There is a first spacing between the sealing sleeve (6.4) and the end of the first slide seat (7.1), and a second spacing between the sealing sleeve (6.4) and the end of the second slide seat (8.1), and the first spacing is smaller than the second spacing.

7. A balanced and stable pressure difference detection module according to claim 1, characterized in that: A limiting convex portion (8.2) is provided in the balancing cavity (8); the limiting convex portion (8.2) is located below the diaphragm component (6.1) and is supported on the diaphragm component (6.1) in a water-filled state.

8. A balanced and stable pressure difference detection module according to claim 1, characterized in that: The housing assembly (1) comprises a main housing (1.1) and a lower housing (1.2) closed at the bottom of the main housing (1.1); the water inlet chamber (2) is defined within the main housing (1.1); the sliding member (6) and the detection area (3) are arranged between the main housing (1.1) and the lower housing (1.2); a water-conducting connecting piece is also arranged between the main housing (1.1) and the lower housing (1.2); the water-conducting connecting piece connects the water inlet chamber (2) and the balancing chamber (8).

9. A balanced and stable pressure difference detection module according to claim 1, characterized in that: The diaphragm component (6.1) is integrally formed on the sliding component (6).

10. A water outlet faucet, comprising the pressure difference detection module according to any one of claims 1 to 9, characterized in that: include: A heating module (10) is arranged in the water inlet chamber (2), and an electric control component (11) is connected to the sliding member (6), the electric control component (11) is electrically connected to the heating module (10), one end of the sliding member (6) corresponding to the balance chamber (8) is arranged corresponding to the electric control component (11), and the sliding member (6) is arranged to move toward the electric control component (11) in a water inlet state and to be connected to the electric control component (11).

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