CN220601821U - Gas water heater and wind pressure detection device - Google Patents

Abstract

The application relates to a gas heater and wind pressure detection device, wind pressure detection device include fan, wind-guiding piece, driving piece, wind pressure sensor and controller. The fan is provided with an air outlet duct. The air guide piece is provided with an air inlet part and a cavity which are communicated with each other, and the position of the air inlet part is adjustably arranged in the air outlet duct. The driving piece is connected with the air guide piece and is used for driving the air inlet part to act. The wind pressure sensor is communicated with the cavity and is used for sensing the wind pressure of the cavity. Therefore, the wind pressure value detected when the water heater is started can be conveniently matched with the set pressure value, so that the water heater can be started normally, and the qualified wind pressure value can be kept all the time, the production process is simplified, the reliability of long-term use is improved, the manual maintenance and replacement times are reduced, and the production efficiency is improved.

Description

Gas water heater and wind pressure detection device

Technical Field

The application relates to the technical field of water heaters, in particular to a gas water heater and a wind pressure detection device.

Background

In a gas water heater, the wind pressure value of a fan during operation is an important index for determining the stability of a product. Before the gas water heater is started to heat, the detected wind pressure value of the fan is required to be compared with the set pressure value of the program, and if the wind pressure value of the fan is not consistent with the set pressure value, the whole gas water heater enters protection for misfire, and the gas water heater is judged to be quality problem.

In the related art, in order to ensure the constant wind pressure value of the fan so as to enable the gas water heater to be normally started, one method is to carry out full detection on the wind pressure value of the fan during the production of the fan, and if the wind pressure value is inconsistent, the wind pressure value reaches the set pressure value by manually adjusting the wind pressure nozzle. However, the procedure of fully detecting the wind pressure value and manually adjusting the wind pressure nozzle is complicated, and the production efficiency is low.

Disclosure of Invention

The first technical problem that this application solved is to provide a wind pressure detection device, and it can be convenient for make the wind pressure value that detects when the water heater starts accord with the settlement pressure value to make the water heater can normally start the heating, improve the reliability that long-term used, the manual maintenance change number of times that significantly reduces improves production efficiency.

The second technical problem that this application solved is to provide a gas heater, and it can be convenient for make the wind pressure value that detects when the water heater starts accord with the settlement pressure value to make the water heater can normally start the heating, improve the reliability that long-term used, the manual maintenance change number of times that significantly reduces improves production efficiency.

The first technical problem is solved by the following technical scheme:

a wind pressure detection apparatus, the wind pressure detection apparatus comprising:

the fan is provided with an air outlet duct;

the air guide piece is provided with an air inlet part and a cavity which are communicated with each other, and the position of the air inlet part is adjustably arranged in the air outlet duct;

the driving piece is connected with the air guide piece and is used for driving the air inlet part to adjust the position so as to adjust the angle relation between the air inlet part and the air inlet direction or the air outlet direction of the air outlet duct;

the wind pressure sensor is used for detecting the wind pressure of the cavity;

the controller is electrically connected with the driving piece and the wind pressure sensor respectively, and the controller is used for controlling the driving piece to work according to the wind pressure of the cavity.

The wind pressure detection device of this application, compared with the prior art, produced beneficial effect:

after the wind pressure detection device is arranged on the gas water heater, when water is started, the micro switch of the water valve acts to send a signal to the controller, the controller sends a signal to the fan to enable the fan to operate, and meanwhile, the controller sends a signal to the electromagnetic valve to open gas; after the fan operates, wind pressure is generated in the air outlet channel, the physical quantity of the wind pressure is transmitted to the wind pressure sensor through the air guide piece, and when the wind pressure sensor detects that the wind pressure value accords with the set pressure value, the controller correspondingly judges that the fan operates normally, and then signals are sent to the pulse igniter, and the pulse igniter ignites coal gas to start normally.

In addition, when the detected wind pressure is smaller or larger, the air inlet part can be correspondingly driven by the driving piece in the follow-up process, so that the angle relation between the air inlet part and the air inlet direction or the air outlet direction of the air outlet channel can be adjusted, and the wind pressure value can be correspondingly adjusted. When the air inlet part is opposite to the direction of the flow channel, the air pressure value at the cavity of the air guide piece is larger, and conversely, the air pressure value is smaller, so that the detected air pressure value can be relatively constant, and the air pressure value detected when the water heater is started can be conveniently matched with the set pressure value, so that the water heater can be started normally; meanwhile, the situation that the gas water heater is not started due to the fact that a small amount of dust exists on the air duct or the wind pressure is changed due to the fact that the wind impeller is slightly deformed due to long-time use is effectively improved, the reliability of long-term use is improved, the manual maintenance and replacement times are greatly reduced, the production efficiency is improved, the service life of the fan is prolonged, and the competitiveness of a product is improved.

In one embodiment, the air guiding member is rotatably disposed inside the air outlet duct around a central axis thereof, and the driving member is used for driving the air guiding member to rotate. Therefore, when the driving piece drives the air guide piece to rotate, the air inlet part can be correspondingly driven to rotate, and the angle position of the air inlet part can be adjusted to a proper position.

In one embodiment, the drive member is provided as a first motor; the first motor is positioned outside the air outlet air duct and connected to the outer wall of the air outlet air duct; the wind pressure sensor is positioned outside the air outlet duct; the air guide piece rotatably penetrates through the wall body of the air outlet air duct and is connected with the first motor after extending out of the air outlet air duct. Thus, the first motor and the wind pressure sensor are both positioned outside the air outlet air duct, and thus the internal space of the air outlet air duct is not occupied, and adverse effects on the air outlet of the air outlet air duct are avoided.

In one embodiment, the first motor includes a housing, a stator assembly, a rotor assembly, and a bearing; the stator assembly, the rotor assembly and the bearing are all arranged on the shell; the rotor assembly penetrates through the stator assembly and is connected with the stator assembly; the wind guide piece is respectively arranged in the bearing and the rotor component in a penetrating way. Thus, when the first motor works, the rotor assembly rotates to correspondingly drive the air guide piece to rotate. In addition, the wind guide piece is arranged in the bearing in a penetrating way, so that the rotating effect is stable and smooth.

In one embodiment, the housing is detachably mounted on the outer wall of the air outlet duct by at least one fastener.

In one embodiment, the air guide member is a pressure transmission tube, and the air inlet portion and the cavity are respectively located at two ends of the pressure transmission tube. Therefore, the structural design of the air guide piece is simpler, and the air guide piece has a better air guide effect.

In one embodiment, the air inlet portion includes one or more vent holes formed in one of the side walls of the pressure transfer tube. Therefore, when the vent hole is right opposite to the gas discharge direction, the wind pressure sensor senses that the wind pressure value at the cavity is larger, and conversely, the wind pressure value is smaller, so that after the air inlet part is adjusted to a proper angle, the detected wind pressure value can be conveniently matched with the set pressure value when the gas water heater is started, and the gas water heater can be started normally.

In one embodiment, the fan comprises a second motor, a volute, and a fan wheel; the rotating shaft of the second motor is connected with the fan impeller, and the fan impeller is rotationally arranged in the volute; the volute is provided with the air outlet duct. Therefore, when the second motor rotates, the fan impeller is driven to stably rotate, and when the fan impeller rotates, wind power can be discharged outwards through the air outlet air duct.

In one embodiment, the volute is provided with an air outlet pipe, and air flow generated in the volute is discharged outwards through the air outlet pipe.

The second technical problem is solved by the following technical scheme:

a gas water heater comprises the wind pressure detection device.

When the water heater is started, the micro switch of the water valve acts to send a signal to the controller, the controller sends a signal to the fan to enable the fan to operate, and meanwhile, the controller sends a signal to the electromagnetic valve to open the coal gas; after the fan operates, wind pressure is generated in the air outlet channel, the physical quantity of the wind pressure is transmitted to the wind pressure sensor through the air guide piece, and when the wind pressure sensor detects that the wind pressure value accords with the set pressure value, the controller correspondingly judges that the fan operates normally, and then signals are sent to the pulse igniter, and the pulse igniter ignites coal gas to start normally.

In addition, when the detected wind pressure is smaller or larger, the controller sends an adjusting signal to the driving piece, and the driving piece correspondingly drives the air inlet part to act so as to adjust the angle relation between the air inlet part and the air inlet direction or the air outlet direction of the air outlet channel, so that the wind pressure value can be correspondingly adjusted. When the air inlet part is opposite to the direction of the flow channel, the air pressure value at the cavity of the air guide piece is larger, and conversely, the air pressure value is smaller, so that the detected air pressure value can be relatively constant, and the air pressure value detected when the water heater is started can be conveniently matched with the set pressure value, so that the water heater can be started normally; meanwhile, the situation that the gas water heater is not started due to the fact that a small amount of dust exists on the air duct or the wind pressure is changed due to the fact that the wind impeller is slightly deformed due to long-time use is effectively improved, the reliability of long-term use is improved, the manual maintenance and replacement times are greatly reduced, the production efficiency is improved, the service life of the fan is prolonged, and the competitiveness of a product is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application.

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a wind pressure detecting device according to an embodiment of the present disclosure.

Fig. 2 is an exploded view of the structure shown in fig. 1.

Fig. 3 is a schematic view of a view angle structure of a wind pressure detecting device according to an embodiment of the disclosure.

Fig. 4 is an enlarged schematic view of the structure of fig. 3 at a.

Fig. 5 is a schematic view illustrating another view angle structure of a wind pressure detecting device according to an embodiment of the present disclosure.

Fig. 6 is an enlarged schematic view of the structure of fig. 5 at B.

Fig. 7 is a schematic structural diagram of a driving member and an air guiding member according to an embodiment of the present disclosure.

Fig. 8 is an enlarged schematic view of the structure of fig. 7 at C.

Fig. 9 is a schematic cross-sectional view of the structure shown in fig. 7.

Fig. 10 is a control schematic diagram of a wind pressure detecting device according to an embodiment of the disclosure.

Reference numerals:

10. a blower; 11. a second motor; 12. a volute; 121. an air outlet duct; 13. a wind impeller; 14. an air outlet pipe; 20. an air guide member; 21. an air inlet part; 211. a vent hole; 30. a driving member; 31. a housing; 32. a stator assembly; 33. a rotor assembly; 34. a bearing; 35. a fastener; 40. a wind pressure sensor; 50. and a controller.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

The wind pressure value when the fan operates is an important index for determining the stability of the product, and has important effects on the characteristics and stability of the fan, so that the stability of the product can be effectively ensured by ensuring the constant wind pressure, and the fan can be suitable for different environments.

Just as the background art, in order to guarantee that the wind pressure value of fan is invariable, adopt the mode of examining the wind pressure value entirely, when appearing not conforming, through manual adjustment wind pressure mouth, this mode process is loaded down with trivial details, production efficiency is low. In addition, the mode of manually adjusting the wind pressure nozzle is to adjust the test wind pressure of a single fan, only indirectly judges whether the wind pressure value of the whole machine is met, and when the fan is installed on the whole machine, the situation that the wind pressure value does not meet the set pressure value during starting still occurs at a high probability, and the gas water heater is poor in starting, and the repairing scheme is to replace the fan, so that resources are wasted greatly.

Based on the reasons, the application provides a gas water heater and wind pressure detection device, and it can be convenient for make the wind pressure value that detects when the water heater starts accord with the settlement pressure value to make the water heater can normally start, improve the reliability that long-term used, the manual maintenance change number of times that significantly reduces improves the scheme of production efficiency.

Referring to fig. 1 to 4 and fig. 10, fig. 1 shows a schematic structural diagram of a wind pressure detecting device according to an embodiment of the present application. Fig. 2 shows an exploded structural view of the structure shown in fig. 1. Fig. 3 is a schematic view illustrating a view angle structure of a wind pressure detecting device according to an embodiment of the disclosure. Fig. 4 shows an enlarged schematic view of the structure of fig. 3 at a. Fig. 10 shows a control schematic of a wind pressure detection device according to an embodiment of the present application. An embodiment of the present application provides a wind pressure detection device, and wind pressure detection device includes: fan 10, wind guide 20, driving member 30, wind pressure sensor 40, and controller 50. The fan 10 is provided with an air outlet duct 121. The air guide 20 is provided with an air inlet 21 and a cavity which are communicated with each other. The air inlet 21 is disposed inside the air outlet duct 121 with adjustable position. The driving member 30 is connected to the air guiding member 20, and is used for driving the air inlet portion 21 to adjust the position, so as to adjust the angular relationship between the air inlet portion 21 and the air inlet direction or the air outlet direction of the air outlet duct 121, thereby correspondingly adjusting the wind pressure of the air inlet portion 21. Optionally, the wind pressure sensor 40 is in communication with the cavity, and the wind pressure sensor 40 is configured to detect a wind pressure of the cavity. The controller 50 is electrically connected to the driving member 30 and the wind pressure sensor 40, and in an embodiment, the controller 50 is further configured to control the driving member 30 to work according to the wind pressure of the cavity.

After the wind pressure detection device is arranged on the gas water heater, when water is started, the micro-switch action of the water valve sends a signal to the controller 50, the controller 50 sends a signal to the fan 10 to enable the fan 10 to operate, and simultaneously sends a signal to the electromagnetic valve to open gas; after the fan 10 is operated, wind pressure is generated in the air outlet duct 121, the physical quantity of the wind pressure is transmitted to the wind pressure sensor 40 through the air guide piece 20, and when the wind pressure sensor 40 detects that the wind pressure value is consistent with the set pressure value, the controller 50 correspondingly judges that the fan 10 is operated normally, and then sends a signal to the pulse igniter, and the pulse igniter ignites the coal gas and is started normally.

In an embodiment, when the detected wind pressure is smaller or larger, the controller 50 can automatically send an adjustment signal to the driving member 30, so that the driving member 30 drives the air inlet 21 to move correspondingly, so as to adjust the angular relationship between the air inlet 21 and the air inlet direction or the air outlet direction of the air outlet duct 121, and accordingly adjust the wind pressure value. When the air inlet part 21 is opposite to the direction of the flow channel, the air pressure value at the cavity of the air guide piece 20 is correspondingly larger, otherwise smaller, so that the detected air pressure value can be relatively constant, and the detected air pressure value can be conveniently matched with the set pressure value when the water heater is started, so that the water heater can be started normally; meanwhile, the condition that the gas water heater is not started due to the fact that a small amount of dust exists on the air outlet air duct 121 or the wind pressure is changed due to slight deformation of the wind impeller and the pressure value is inconsistent with the set pressure value can be effectively improved, the reliability of long-term use is improved, the manual maintenance and replacement times are greatly reduced, the production efficiency is improved, and the competitiveness of products is improved. It will be appreciated that the controller 50 will control the actuation of the driving member 30 only when the gas water heater is actuated for heating and when the detected wind pressure is not in compliance, and otherwise the driving member 30 is in an inactive state.

In some embodiments, when the fan 10 generates wind pressure in the wind outlet duct 121, the wind pressure physical quantity is transmitted to the wind pressure sensor 40 through the wind guide 20, and the wind pressure sensor 40 converts the physical value into a digital signal and transmits the digital signal to the controller 50 for analysis.

Optionally, the controller 50 is designed as an electronic circuit board or a processing chip integrated with a signal processor, and is used for analyzing and processing the signal input by the wind pressure sensor 40 (for measuring the pressure at the cavity of the wind guiding member 20), and then outputting a corresponding command signal to the driving member 30 to control the driving member 30 to work. When the driving member 30 is operated, the magnitude of the wind pressure value detected by the wind pressure sensor 40 is changed accordingly. When the wind pressure value sensed by the wind pressure sensor 40 matches the set pressure value, the driving member 30 is stopped.

The set pressure value is a qualified parameter standard defined in the initial stage of development, is also a parameter for normally starting the whole gas water heater, can be used when meeting the set pressure value according to the corresponding setting of a specific model, and can fail if not meeting the set pressure value. Specifically, the set pressure value is set to, for example, M, and when the wind pressure value sensed by the wind pressure sensor 40 is, for example, 0.9M to 1.1M, the corresponding judgment is made to coincide with the set pressure value; conversely, when the wind pressure value sensed by the wind pressure sensor 40 is greater than 1.1M, the corresponding judgment is greater than the set pressure value, and when the wind pressure value sensed by the wind pressure sensor 40 is less than 0.9M, the corresponding judgment is less than the set pressure value. It can be understood that by controlling the driving member 30 to work, the wind pressure value detected by the wind pressure sensor 40 is expected to be in line with the set pressure value, and the original set pressure value is not required to be changed, so that the control of other performances of the gas water heater is not affected.

It should be noted that, there are various ways in which the air inlet 21 is adjustably disposed inside the air outlet duct 121, including but not limited to rotation about its central axis, bending and translation in any direction, and the like, and specifically, the air inlet can be flexibly adjusted and set according to actual requirements, so long as the air pressure at the cavity can be correspondingly adjusted after changing the position.

Referring to fig. 3 to 7, fig. 5 is a schematic view illustrating another view angle structure of a wind pressure detecting device according to an embodiment of the disclosure. Fig. 6 shows an enlarged schematic view of the structure of fig. 5 at B. Fig. 7 shows a schematic structural diagram of the driving member 30 and the air guiding member 20 according to an embodiment of the present application. In one embodiment, the wind guiding member 20 is rotatably disposed inside the wind outlet duct 121 around its central axis, and the driving member 30 is used for driving the wind guiding member 20 to rotate. Thus, when the driving member 30 drives the air guide member 20 to rotate, the air inlet portion 21 can be correspondingly driven to rotate, so that the angle position of the air inlet portion 21 can be adjusted to a proper position.

Referring to fig. 4-9, fig. 9 shows a schematic cross-sectional view of the structure of fig. 7. In one embodiment, the drive member 30 is provided as a first motor. The first motor is located outside the air outlet duct 121 and is connected to the outer wall of the air outlet duct 121. The wind pressure sensor 40 is located outside the wind outlet duct 121. The air guide 20 rotatably penetrates through the wall body of the air outlet duct 121, and the air guide 20 extends out of the air outlet duct 121 and then is connected with the first motor. Thus, both the first motor and the wind pressure sensor 40 are located outside the air outlet duct 121, so that the internal space of the air outlet duct 121 is not occupied, and the air outlet of the air outlet duct 121 is not adversely affected.

Referring to fig. 7 and 9, in one embodiment, the first motor includes a housing 31, a stator assembly 32, a rotor assembly 33, and a bearing 34. The stator assembly 32, the rotor assembly 33 and the bearing 34 are all mounted on the housing 31. The rotor assembly 33 is disposed through the stator assembly 32 and is coupled to the stator assembly 32. The wind guide 20 is respectively inserted into the bearing 34 and the rotor assembly 33. Thus, when the first motor is operated, the rotor assembly 33 rotates to correspondingly drive the air guide 20 to rotate. In addition, the wind guide 20 is penetrated in the bearing 34, and the bearing 34 supports the wind guide 20, so that the rotation effect of the wind guide 20 is stable and smooth.

In one embodiment, the housing 31 is removably mounted to the outer wall of the outlet air duct 121 by at least one fastener 35.

Optionally, the fastener 35 includes, but is not limited to, a screw, a bolt, a pin, a rivet, a clamping member, etc., and may be flexibly adjusted and set according to practical requirements.

Alternatively, the number of fasteners 35 includes, but is not limited to, one, two, three, or other numbers.

Referring to fig. 7 and 9, in one embodiment, the air guide 20 is a pressure transmission tube, and the air inlet 21 and the cavity are respectively located at two ends of the pressure transmission tube. Therefore, the air guide member 20 has a simple structural design and a good air guide effect.

Referring to fig. 7 and 9, in one embodiment, the air inlet 21 includes one or more air holes 211 formed on one side wall of the pressure transmission tube. Thus, when the ventilation hole 211 is opposite to the air discharge direction of the air outlet duct 121, more air in the air outlet duct 121 enters the air guide member 20 through the air inlet portion 21, the air pressure sensor 40 senses that the air pressure value at the cavity is larger, and conversely smaller, so that after the air inlet portion 21 is adjusted to a proper angle, the air pressure value detected during starting of the gas water heater can be conveniently matched with the set pressure value, and the gas water heater can be started normally.

The number, size, and shape of the ventilation holes 211 are flexibly adjusted and set according to actual needs, and are not limited herein. When the number of the ventilation holes 211 is changed and/or the aperture size of the ventilation holes 211 is changed, it is possible to play a role in adjusting the wind pressure value.

In one embodiment, the aperture size of the vent 211 is, for example, set to 0.1mm-20mm, specifically, for example, 1mm-5mm, including, but not limited to, set to 0.1mm, 1mm, 5mm, 10mm, 15mm, 20mm, and the like. Therefore, the wind pressure value at the cavity can be accurately adjusted.

Referring to fig. 1 to 4, in one embodiment, a fan 10 includes a second motor 11, a volute 12, and a fan impeller 13. The rotating shaft of the second motor 11 is connected with a fan impeller 13, the fan impeller 13 is rotatably arranged in a volute 12, and the volute 12 is provided with an air outlet duct 121. In this way, when the second motor 11 rotates, the fan impeller 13 is driven to rotate stably, and when the fan impeller 13 rotates, wind pressure can be formed in the wind outlet duct 121 of the volute 12. In addition, the volute 12 is provided with an air outlet pipe 14, and air flow generated in the volute 12 is discharged outwards through the air outlet pipe 14.

Optionally, the impeller 13 is formed by a plurality of blades, and can generate wind pressure with the volute 12 during high-speed operation, so that air can flow outwards along the air outlet duct 121 at a high speed.

Referring to fig. 1 to 4, in one embodiment, a gas water heater includes the wind pressure detecting device of any of the above embodiments.

When the water heater is started, the micro-switch of the water valve acts to send a signal to the controller 50, the controller 50 sends a signal to the fan 10, so that the fan 10 runs, and simultaneously sends a signal to the electromagnetic valve to open the gas; after the fan 10 is operated, wind pressure is generated in the air outlet duct 121, the physical quantity of the wind pressure is transmitted to the wind pressure sensor 40 through the air guide piece 20, and when the wind pressure sensor 40 detects that the wind pressure value is consistent with the set pressure value, the controller 50 correspondingly judges that the fan 10 is operated normally, and then sends a signal to the pulse igniter, and the pulse igniter ignites the coal gas and is started normally.

In addition, when the detected wind pressure is smaller or larger, the controller 50 will send an adjustment signal to the driving member 30, and the driving member 30 correspondingly drives the air inlet portion 21 to act, so as to adjust the angular relationship between the air inlet portion 21 and the air inlet direction or the air outlet direction of the air outlet duct 121, so that the magnitude of the wind pressure can be adjusted accordingly. When the air inlet part 21 is opposite to the direction of the flow channel, the air pressure value at the cavity of the air guide piece 20 is correspondingly larger, otherwise smaller, so that the detected air pressure value can be relatively constant, and the detected air pressure value can be conveniently matched with the set pressure value when the water heater is started, so that the water heater can be started normally; meanwhile, the condition that the gas water heater is not started due to the fact that a small amount of dust exists on the air outlet air duct 121 or the wind pressure is changed due to slight deformation of the wind impeller and the pressure value is inconsistent with the set pressure value can be effectively improved, the reliability of long-term use is improved, the manual maintenance and replacement times are greatly reduced, the production efficiency is improved, and the competitiveness of products is improved.

Referring to fig. 1 to 4, in one embodiment, a control method of a wind pressure detecting apparatus includes the following steps:

when the gas water heater needs to be started, acquiring the wind pressure of the cavity;

and comparing and judging the wind pressure of the cavity with the set pressure value, and correspondingly controlling the driving piece 30 to work according to the comparison and judgment result of the wind pressure and the set pressure value.

Specifically, when the magnitude of the wind pressure of the cavity is the same as or substantially the same as the set pressure value, the driving member 30 does not act;

optionally, the set pressure value is, for example, M, and when the wind pressure of the cavity is, for example, 0.9M-1.1M, the corresponding judgment is consistent with the set pressure value.

When the wind pressure of the cavity is smaller than the set pressure value, the driving piece 30 drives the air inlet part 21 to act, so that the wind pressure of the cavity is increased;

alternatively, when the wind pressure value sensed by the wind pressure sensor 40 is greater than 1.1M, for example, the corresponding judgment is greater than the set pressure value.

When the wind pressure of the cavity is greater than the set pressure value, the driving member 30 drives the air inlet portion 21 to act, so that the wind pressure of the cavity is reduced.

Alternatively, when the wind pressure value sensed by the wind pressure sensor 40 is, for example, less than 0.9M, the corresponding judgment is less than the set pressure value.

In the control method of the wind pressure detection device, when the detected wind pressure is smaller or larger, the controller 50 sends an adjustment signal to the driving member 30, and the driving member 30 correspondingly drives the air inlet portion 21 to act, so as to adjust the angular relationship between the air inlet portion 21 and the air inlet direction or the air outlet direction of the air outlet duct 121, so that the magnitude of the wind pressure value can be adjusted accordingly. When the air inlet part 21 is opposite to the direction of the flow channel, the air pressure value at the cavity of the air guide piece 20 is correspondingly larger, otherwise smaller, so that the detected air pressure value can be relatively constant, and the detected air pressure value can be conveniently matched with the set pressure value when the water heater is started, so that the water heater can be started normally; meanwhile, the condition that the gas water heater is not started due to the fact that a small amount of dust exists on the air outlet air duct 121 or the wind pressure is changed due to slight deformation of the wind impeller and the pressure value is inconsistent with the set pressure value can be effectively improved, the reliability of long-term use is improved, the manual maintenance and replacement times are greatly reduced, the production efficiency is improved, and the competitiveness of products is improved.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. A wind pressure detection apparatus, characterized in that the wind pressure detection apparatus comprises:

the air conditioner comprises a fan (10), wherein the fan (10) is provided with an air outlet duct (121);

the air guide piece (20), the air guide piece (20) is provided with an air inlet part (21) and a cavity which are communicated with each other, and the air inlet part (21) is arranged in the air outlet duct (121) in a position-adjustable manner;

the driving piece (30), the said driving piece (30) couples to said wind-guiding piece (20), is used for driving the said air inlet department (21) to adjust the position, in order to adjust the said air inlet department (21) and said wind-out wind direction of wind channel (121) or angular relation of the wind-out wind direction;

a wind pressure sensor (40), wherein the wind pressure sensor (40) is used for detecting the wind pressure of the cavity;

and the controller (50) is electrically connected with the driving piece (30) and the wind pressure sensor (40) respectively.

2. The wind pressure detection device according to claim 1, wherein the wind guiding member (20) is rotatably disposed inside the wind outlet duct (121) around a central axis thereof, and the driving member (30) is configured to drive the wind guiding member (20) to rotate.

3. Wind pressure detection device according to claim 2, characterized in that the drive member (30) is provided as a first motor; the first motor is positioned outside the air outlet air duct (121) and is connected to the outer wall of the air outlet air duct (121); the wind pressure sensor (40) is positioned outside the air outlet air duct (121); the air guide piece (20) rotatably penetrates through the wall body of the air outlet air duct (121), and the air guide piece (20) stretches out of the air outlet air duct (121) and then is connected with the first motor.

4. A wind pressure detection arrangement according to claim 3, characterized in that the first motor comprises a housing (31), a stator assembly (32), a rotor assembly (33) and a bearing (34); the stator assembly (32), the rotor assembly (33) and the bearing (34) are all arranged on the shell (31); the rotor assembly (33) penetrates through the stator assembly (32) and is connected with the stator assembly (32); the air guide (20) is respectively arranged in the bearing (34) and the rotor assembly (33) in a penetrating way.

5. Wind pressure detection device according to claim 4, characterized in that the housing (31) is detachably mounted to the outer wall of the wind outlet duct (121) by means of at least one fastening piece (35).

6. The wind pressure detection device according to claim 2, wherein the wind guide (20) is a pressure transmission tube, and the air inlet portion (21) and the cavity are respectively located at two ends of the pressure transmission tube.

7. The wind pressure detection device according to claim 6, wherein the wind inlet portion (21) includes one or more ventilation holes (211) formed on one of side walls of the pressure transmission pipe.

8. The wind pressure detection device according to any of the claims 1 to 7, characterized in that the fan (10) comprises a second motor (11), a volute (12) and a fan blade (13); the rotating shaft of the second motor (11) is connected with the impeller (13), and the impeller (13) is rotationally arranged in the volute (12); the volute (12) is provided with the air outlet duct (121).

9. The wind pressure detection device according to claim 8, wherein the volute (12) is provided with an air outlet pipe (14), and air flow generated in the volute (12) is discharged outwards through the air outlet pipe (14).

10. A gas water heater comprising a wind pressure detection device as claimed in any one of claims 1 to 9.