CN211536065U - Ventilator - Google Patents

Abstract

The utility model discloses a ventilator, comprising a casing, a fan mechanism, a water tank mechanism and a rectifier box. The casing comprises a first inner cavity, a first air inlet communicating with the first inner cavity, and a second air inlet communicating with the first inner cavity. an air outlet; the fan mechanism is used to drive the gas to flow from the first air inlet to the first air outlet through the first inner cavity, and the fan mechanism is arranged in the first inner cavity; the water tank mechanism is used for Humidify the gas passing through the fan mechanism, and the water tank mechanism is arranged in the first inner cavity; the rectifier box is used to rectify and reduce noise for the gas flowing from the fan mechanism to the water tank mechanism, and the rectifier box is used to rectify and reduce noise. It is arranged between the fan mechanism and the water tank mechanism. The ventilator disclosed by the utility model has the advantages of low noise and does not affect the sleep quality of patients.

Description

Ventilator

technical field

The utility model relates to the field of respirator, in particular to a respirator.

Background technique

As an effective means to artificially replace the function of spontaneous ventilation, the ventilator has been widely used in respiratory failure caused by various reasons, anesthesia and respiratory management during major surgery, respiratory support treatment and emergency resuscitation, and occupies an important place in the field of modern medicine. very important location. A ventilator is a vital medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives. A common ventilator includes a fan assembly and a water tank assembly. The fan assembly is used to drive the airflow to the water tank assembly, and is mixed with the water vapor generated by the water tank assembly and delivered to the mask fitted to the patient. When the air flow generated by the fan assembly of the existing ventilator flows to the water tank assembly, a relatively large noise is generated, which affects the sleep quality of the patient.

Utility model content

In order to overcome the deficiencies of the prior art, the purpose of the present invention is to disclose a ventilator, which is used to solve the problem that the existing ventilator is noisy and affects the sleep quality of patients.

The purpose of this utility model adopts following technical scheme to realize:

A ventilator comprising:

a casing, comprising a first inner cavity, a first air inlet communicating with the first inner cavity, and a first air outlet communicating with the first inner cavity;

a fan mechanism for driving gas to flow from the first air inlet to the first air outlet through the first inner cavity, and the fan mechanism is arranged in the first inner cavity;

a water tank mechanism for humidifying the gas passing through the fan mechanism, and the water tank mechanism is arranged in the first inner cavity;

The rectifier box is used to rectify and reduce noise for the gas flowing from the fan mechanism to the water tank mechanism, and the rectifier box is arranged between the fan mechanism and the water tank mechanism.

As an improvement, the fan mechanism includes a fan casing and a fan assembly, the fan casing has a second inner cavity, a second air inlet communicating with the second inner cavity, and communicating with the second inner cavity The second air outlet of the inner cavity, the fan assembly is arranged in the second inner cavity for driving the gas from the second air inlet to enter the second inner cavity and diffuse from the second air outlet going out, the second air inlet communicates with the first air inlet.

As an improvement, the water tank mechanism includes a water tank housing and a heating assembly, the water tank housing has a third inner cavity, a third air inlet communicating with the third inner cavity, and communicating with the third inner cavity The third air outlet is in communication with the first air outlet, and the heating assembly is mounted on the water tank housing for heating water in the water tank housing.

As an improvement, the rectifier box includes a fourth inner cavity, a fourth air inlet communicating with the fourth inner cavity, and a fourth air outlet communicating with the fourth inner cavity, and the fourth air inlet is connected to the fourth air inlet. The second air outlet is in communication, and the fourth air outlet is in communication with the third air inlet.

As an improvement, the rectifier box includes a first casing and a second casing connected with the first casing, and the first casing and the second casing are enclosed to form the fourth casing The inner cavity, the fourth air inlet is opened on the first casing, the fourth air outlet is opened on the second casing, and the fourth air inlet is away from the fourth air outlet. A first arc baffle is arranged on the side, and a second arc baffle is arranged between the fourth air inlet and the fourth air outlet.

As an improvement, the fan mechanism further includes an air duct, the fan assembly includes a volute, an impeller and a motor, and the volute has a fifth inner cavity and a fifth air inlet communicating with the fifth inner cavity , and a fifth air outlet that communicates with the fifth inner cavity, the fifth air outlet is communicated with the second air outlet, and the motor is installed on the side of the volute away from the fifth air inlet, so The air guide pipe is used for guiding the air entering the second inner cavity from the second air inlet to the motor.

As an improvement, the fan mechanism further includes a baffle plate arranged in the second inner cavity, the baffle plate divides the second inner cavity into an upper cavity and a lower cavity, and the second inner cavity is divided into an upper cavity and a lower cavity. The air inlet communicates with the lower chamber, the fan assembly is arranged in the upper chamber, the fifth air inlet faces the baffle, one end of the air duct is connected to the baffle, and the other end is connected to the baffle. extends to the motor.

As an improvement, the fan mechanism further includes a fan shock-absorbing sleeve, the fan shock-absorbing sleeve has a receiving cavity, the fan assembly is installed in the receiving cavity, and the outer side wall of the fan shock-absorbing sleeve is connected to the receiving cavity. The fan casing is connected.

As an improvement, the fan shock-absorbing sleeve is integrally formed with silicone.

As an improvement, the outer shell includes a bottom plate, a top shell, a cover plate and a button assembly, the bottom plate and the top shell enclose the first inner cavity, and the top shell includes a set opposite to the bottom plate A top plate and a first side plate connected with one side of the top plate, the top plate is provided with a first opening communicating with the inner cavity and a first opening on the side away from the first side plate and The installation port communicates with the inner cavity, one side of the cover plate is rotatably connected with the first side plate, the side of the cover plate away from the first side plate is provided with a slot, and the cover plate is used for Covering the first opening; the button assembly includes a mounting seat installed on the side of the top plate facing the inner cavity, and a clip with one end set in the mounting seat for pressing the card an elastic piece for snapping the snapping piece into the card slot, and a button movably connected with the mounting seat for driving the snapping piece to withdraw from the snapping slot, the One end of the button protrudes out of the installation opening.

As an improvement, the top of the first side plate is provided with a downwardly extending groove, one end of the cover plate is rotatably installed in the groove, and the groove has two groove sides arranged opposite to each other at intervals The wall and the bottom wall of the groove located between the two side walls of the groove, the bottom wall of the groove is protruded upward with a limit protrusion for limiting the rotation angle of the cover plate relative to the top plate exceeding 180°.

As an improvement, the water tank mechanism further includes an anti-backflow pipe and an elastic seal, the housing further includes a surrounding frame protruding from the bottom plate facing the first inner cavity, and the water tank shell is installed In the enclosure, the elastic seal is arranged on the side of the enclosure away from the first side plate, the anti-backflow pipe is installed in the water tank shell, and the anti-backflow pipe is close to One end of the elastic sealing member is provided with an annular flange that is bent outwards, and an annular groove into which the annular flange is inserted is positioned on the elastic sealing member.

As an improvement, the cover plate includes a plate body rotatably installed in the groove and a limiting portion protruding from a side of the plate body facing the first inner cavity, and the water tank shell is close to the One side of the first side plate is provided with a limit groove, and the groove wall of the limit groove facing the first side plate is provided with a groove wall for cooperating with the limit part, so that the limit part can lock the water tank shell. The body is pushed towards the inclined surface of the elastic seal.

As an improvement, the ventilator further includes an air intake pipe, a throttle and a differential pressure sensor, the intake pipe is connected to the first air inlet and the second inner cavity, and the throttle is provided with In the air inlet pipe, the air inlet pipe is provided with a first collection port on the side of the throttle member close to the first air inlet and a first collection port on the side of the throttle member away from the first air inlet. The second collection port of the differential pressure sensor has two ports, and the two ports are respectively communicated with the first collection port and the second collection port.

As an improvement, the ventilator further includes an air intake cover and a dust filter cotton, the air intake cover cover is provided at the first air inlet, and the dust filter cotton is provided in the direction of the air intake cover cover. one side of the throttle.

As an improvement, the fan mechanism further includes a sound-absorbing cotton member disposed in the second inner cavity.

Compared with the prior art, the beneficial effects of the present utility model are:

The ventilator provided by the utility model can rectify and reduce the noise of the airflow coming out of the fan mechanism by setting the rectifier box, which can effectively reduce the noise caused by the large airflow, thereby reducing the noise of the entire ventilator and reducing the impact of the noise on the sleep quality of the patient. Impact.

Description of drawings

1 is a schematic structural diagram of a ventilator disclosed in an embodiment of the present utility model;

Fig. 2 is the first explosion schematic diagram of the ventilator disclosed in the embodiment of the present utility model;

3 is a schematic diagram of a second explosion of the ventilator disclosed in the embodiment of the present utility model;

4 is an exploded schematic diagram of a rectifier box disclosed in an embodiment of the present utility model;

5 is a schematic structural diagram of a fan casing, an air inlet pipe, a throttle, a sound-absorbing cotton and an air inlet cover disclosed in an embodiment of the present utility model;

6 is an exploded schematic diagram of the fan mechanism disclosed in the embodiment of the present utility model;

7 is a schematic structural diagram of a fan assembly disclosed in an embodiment of the present utility model;

8 is a schematic structural diagram of a bottom perspective structure of an intermediate casing disclosed in an embodiment of the present invention;

9 is an exploded schematic diagram of a fan assembly disclosed in an embodiment of the present utility model;

10 is an exploded schematic diagram of a button assembly disclosed in an embodiment of the present invention;

11 is a schematic structural diagram of a clip disclosed in an embodiment of the present invention;

12 is a schematic structural diagram of a button disclosed in an embodiment of the present invention;

Fig. 13 is a partial enlarged schematic diagram at A in Fig. 2;

Fig. 14 is a partial enlarged schematic diagram at B in Fig. 3;

15 is a schematic structural diagram of a cover plate disclosed in an embodiment of the present invention;

16 is a schematic structural diagram of an anti-backflow pipe and an elastic seal disclosed by an embodiment of the present utility model;

FIG. 17 is a schematic diagram of a third explosion of the ventilator disclosed in the embodiment of the present invention.

Detailed ways

Hereinafter, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, on the premise of no conflict, the embodiments or technical features described below can be combined arbitrarily to form new implementations. example.

It should be noted that all directional indications (such as up, down, left, right, front, back, inner, outer, top, bottom...) in the embodiments of the present invention are only used to explain the When the relative positional relationship among the components under the attached drawings) is changed, if the specific posture changes, the directional indication also changes accordingly.

It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When 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.

1-3, an embodiment of the present invention discloses a ventilator 100, including:

The housing 11 includes a first inner cavity, a first air inlet 112 communicating with the first inner cavity, and a first air outlet 113 communicating with the first inner cavity;

The fan mechanism 12 is used to drive the gas to flow from the first air inlet 112 to the first air outlet 113 through the first inner cavity. The fan mechanism 12 is arranged in the first inner cavity. The fan mechanism 12 includes a fan casing 121 and a fan assembly 122 The fan housing 121 has a second inner cavity, a second air inlet 124 communicating with the second inner cavity, and a second air outlet 125 communicating with the second inner cavity. The fan assembly 122 is arranged in the second inner cavity for The driving gas enters the second inner cavity from the second air inlet 124 and diffuses out from the second air outlet 125, and the second air inlet 124 communicates with the first air inlet 112;

The water tank mechanism 13 is used to humidify the gas passing through the fan mechanism 12. The water tank mechanism 13 is arranged in the first inner cavity. The water tank mechanism 13 includes a water tank casing 131 and a heating assembly 132. The water tank casing 131 has a third inner cavity, The third air inlet 134 communicates with the third inner cavity and the third air outlet 135 communicates with the third inner cavity. The third air outlet 135 communicates with the first air outlet 113. The heating element 132 is installed on the water tank housing 131 for use in heating the water in the tank housing 131;

The rectifier box 14 is used to rectify and reduce noise for the gas flowing from the fan mechanism 12 to the water tank mechanism 13 . The rectifier box 14 is arranged between the fan mechanism 12 and the water tank mechanism 13 . The rectifier box 14 includes a fourth inner cavity, a fourth air inlet 142 communicating with the fourth inner cavity, and a fourth air outlet 143 communicating with the fourth inner cavity. The fourth air inlet 142 communicates with the second air outlet 125, and the fourth outlet The tuyere 143 communicates with the third air inlet 134 .

Preferably, the fan mechanism 12 and the water tank mechanism 13 are arranged side by side at intervals, and the rectifier box 14 is provided between the fan mechanism 12 and the water tank mechanism 13 .

When in use, the motor mechanism 12 operates, the air enters the second inner cavity of the fan housing 121 through the first air inlet 112, and the fan assembly 122 located in the second inner cavity drives the air in the second inner cavity to flow out from the second outlet. The air outlet 125 diffuses out and enters the fourth inner cavity of the rectifier box 14 through the fourth air inlet 142. The air in the fourth inner cavity diffuses out through the fourth air outlet 143 and enters the water tank through the third air inlet 134. In the third inner cavity of the casing 131, the water in the water tank casing 131 is heated by the heating component 132 to form water vapor, and the formed water vapor is mixed with the air in the third inner cavity and passes through the third air outlet 135, and then passes through the third air outlet 135. The first air outlet 113 diffuses and runs to the patient's breathing mask (through the connecting pipe), that is, the entire air flow operation process is completed.

In this embodiment, by setting the rectifier box 14 to rectify and reduce the noise of the airflow coming out of the fan mechanism 12, the noise caused by the large airflow can be effectively reduced, thereby reducing the noise of the entire ventilator 100 and reducing the noise to the patient's sleep. impact on quality.

Please refer to FIG. 4 , as an improvement of this embodiment, the rectifier box 14 includes a first casing 144 and a second casing 145 connected to the first casing 144 , the first casing 144 and the second casing 145 A fourth inner cavity is formed by enclosing, the first housing 144 is provided with the fourth air inlet 142, the second housing 145 is provided with the fourth air outlet 143, and the fourth air inlet 142 is far away from the fourth air outlet One side of 143 is provided with a first arc-shaped baffle 146 , and a second arc-shaped baffle 147 is provided between the fourth air inlet 142 and the fourth air outlet 143 . Preferably, the first baffle 146 and the edge of the fourth air inlet 142 have the same arc and extend along the edge of the fourth air inlet 142 . Preferably, the second arc baffle 147 is bent and extended from the edge of the fourth air inlet 142 to the edge of the fourth air outlet 143 .

Referring to FIGS. 5-9 , as an improvement of this embodiment, the fan mechanism 12 further includes an air duct 126 , the fan assembly 122 includes a volute 1221 , an impeller 1222 and a motor 1223 , and the volute 1221 has a fifth inner cavity, The fifth air inlet 1225 communicates with the fifth inner cavity, and the fifth air outlet 1226 communicates with the fifth inner cavity. The fifth air outlet 1226 communicates with the second air outlet 125, and the motor 1223 is installed in the volute 1221 away from the fifth air inlet. On one side of 1225 , the air duct 126 is used to guide the air entering the second inner cavity from the second air inlet 124 to the motor 1223 . In this design, all the air entering the second inner cavity from the first air inlet 112 is guided to the motor 1223 by arranging the air duct 126 , and the second air inlet 124 is located on the side of the volute 1221 away from the motor 1223 by arranging the second air inlet 124 . , in this way, the air entering the second inner cavity from the first air inlet 112 first flows to the motor 1223 through the air duct 126 to take away the heat generated by the motor 1223, and then circulates to the second air inlet 124. The second air inlet 124 enters the inside of the volute 1221 to form a cycle, and then diffuses out from the second air outlet 125 . In this way, the heat generated during the operation of the fan assembly 122 can be reduced to the greatest extent, and the service life of the fan assembly 122 can be increased; The sound of the fan mechanism 12 plays a role of isolation, thereby reducing the operating noise of the entire fan mechanism 12, especially when the fan mechanism 12 is used in a respirator, reducing the operating noise of the fan mechanism 12 can effectively avoid the noise affecting the patient's sleep quality. make an impact.

As an improvement of this embodiment, the fan mechanism 12 further includes a partition plate 127 disposed in the second inner cavity. The partition plate 127 divides the second inner cavity into an upper cavity 1231 and a lower cavity 1232. The tuyere 124 communicates with the lower chamber 1232 , the fan assembly 122 is arranged in the upper chamber 1231 , the fifth air inlet 1225 faces the partition 127 , one end of the air duct 126 is connected to the partition 127 , and the other end extends to the motor 1223 . With this design, the air entering the lower chamber 1232 from the first air inlet 112 can all be circulated to the motor 1223 through the air duct 126, which simplifies the design of the air duct 126. Of course, the fan housing 121 is not designed It is also possible to have a partition 127 to divide the second inner cavity into an upper chamber 1231 and a lower chamber 1232. The air duct 126 can be directly connected to the first air inlet 112, and the air entering from the first air inlet 112 can be directly Lead to motor 1223.

As an improvement of this embodiment, the fan casing 121 includes a middle casing 1211, a top cover 1212 disposed on the top of the intermediate casing 1211, and a bottom plate 1213 disposed at the bottom of the intermediate casing 1211. The partition plate 127 is arranged horizontally. On the inner side wall of the middle casing 1211 , the top cover 1212 , the middle casing 1211 and the partition plate 127 are enclosed to form an upper chamber 1231 , and the bottom plate 1213 , the middle casing 1211 and the partition plate 127 are enclosed to form a lower chamber 1232 . Preferably, the other end of the air duct 126 extends to be close to the connection between the intermediate casing 1211 and the top cover 1212 . Preferably, the bottom plate 1213 is made of sound-absorbing cotton material, which can absorb the noise generated by the fan mechanism 12 during operation. Further, sound-absorbing cotton can be arranged on the inner side wall of the upper chamber 1231 to absorb the noise generated when the fan mechanism 12 is running.

As an improvement of this embodiment, the fan mechanism 12 further includes a fan damping sleeve 128, the fan damping sleeve 128 has a receiving cavity 1281, the fan assembly 122 is installed in the receiving cavity 1281, and the outer side wall of the fan damping sleeve 128 is connected to the accommodating cavity 1281. The fan housing 121 is connected. Preferably, the fan damping sleeve 128 is a cylindrical structure made of elastic material. It is preferably made of silicone material. By setting the fan damping sleeve 128 to be made of elastic material, the fan damping sleeve 128 can isolate the transmission of electromagnetic low frequency noise when the motor 1223 is running, and can buffer the noise generated by the mechanical impact when the motor 1223 is running.

As an improvement of this embodiment, the fan mechanism 12 further includes a bracket 129 for supporting the fan damping sleeve 128. The bracket 129 includes a support ring 1291 and a rib 1292. The support ring 1291 is sandwiched between the top cover 1212 and the top cover 1212. Between the intermediate casings 1211 , one end of the rib 1292 is connected to the inner side of the support ring 1291 , and the other end is connected to the outer side wall of the fan damping sleeve 128 .

As an improvement of this embodiment, two air guide pipes 126 are provided, and the two air guide pipes 126 are arranged on the partition plate 127 at intervals. By arranging two air guide pipes 126 , the air intake volume can be increased, and the effect of accelerating and taking away the heat generated by the motor 1223 can be achieved.

As an improvement of this embodiment, the volute 1221 includes a bottom case 1227 and a top case 1228 connected to the bottom case 1227. The bottom case 1227 and the top case 1228 are enclosed to form an accommodating cavity 1229 for accommodating the impeller 122, The top case 1228 is recessed toward the bottom case 1227 with a mounting groove 1214 for installing the fan. The second air inlet 124 is provided in the bottom case 1227 and communicates with the accommodating cavity 1229 . With this design, the size of the fan assembly 122 can be effectively reduced, so that the structure of the entire fan mechanism 12 is more compact.

As an improvement of this embodiment, the fan mechanism 12 further includes a sound-absorbing cotton member 1214 disposed in the second inner cavity. Preferably, the sound-absorbing cotton member 1214 is attached to the inner side wall of the intermediate housing 1211 . The sound-absorbing cotton has the characteristics of sound absorption. By arranging the sound-absorbing cotton member 1214 in the second inner cavity, the sound-absorbing cotton member 1214 can absorb the noise generated when the fan mechanism 12 operates.

As an improvement of this embodiment, the volute 1221 includes the following components in parts by weight:

Thermoplastic 60%-90%;

Thermally conductive filler 10%-40%.

Among them, the thermoplastic can be polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyoxymethylene, polycarbonate, polyamide, acrylic plastic, other polyolefins and their copolymers, polysulfone, polyether plastics A combination of one or more; the thermally conductive filler can be a combination of one or more of aluminum nitride, silicon carbide, aluminum oxide, graphite, fibrous high thermal conductivity carbon powder, and flake-like high thermal conductivity carbon powder. Preferably, the thermoplastic and thermally conductive filler may be a combination of polyamide and graphite, or a combination of polyether plastic and graphite.

By setting the volute 1221 to include 60%-90% thermoplastic and 10%-40% thermally conductive filler, the volute 1221 has a better thermal conductivity effect, so that the heat generated by the operation of the motor 1223 can be quickly transferred to the volute 1221, The heat on the volute 1221 diffuses out from the second air outlet 125 along with the circulating airflow, so as to have a better heat dissipation effect on the fan assembly 122 and prolong the service life of the fan assembly 122 . Experiments show that the mixing ratio of thermoplastic and thermally conductive filler can make the heat dissipation coefficient of the volute 1221 reach 3W/(m*K).

Please refer to FIGS. 1-3 and 10-12. As an improvement of this embodiment, the housing 11 includes a bottom plate 114, a top shell 115, a cover plate 116, and a button assembly 117. The bottom plate 114 and the top shell 115 are enclosed to form a first an inner cavity, the top shell 115 includes a top plate 1151 opposite to the bottom plate 114 and a first side plate 1152 connected to one side of the top plate 1151, the top plate 1151 is provided with a first opening 1153 communicating with the first inner cavity and a An opening 1153 is away from the side of the first side plate 1152 and communicates with the installation opening 1154 of the first inner cavity. There is a card slot 1161, and the cover plate 116 is used to cover the first opening 1153; the button assembly 117 includes a mounting seat 1171 installed on the side of the top plate 1151 facing the first inner cavity, a clip 1172 with one end disposed in the mounting seat 1171, The elastic member 1173 for pressing the buckle member 1172 so that the buckle member 1172 is clamped in the card slot 1161 , and the button 1174 movably connected to the mounting seat 1171 for driving the buckle member 1172 to withdraw from the card slot 1161 , one end of the button 1174 protrudes out of the installation opening 1154 . When the cover 116 is closed, the clip 1172 is clamped in the slot 1161 to lock the cover 116. When the cover 116 is opened, only the button 1174 is pressed, and the button 1174 drives the clip 1172 from the slot 1161. The cover plate 116 can be opened by withdrawing from the middle, which is simple and convenient, and when the cover plate 116 is closed, the clip 1172 is clamped in the card slot 1161, which can prevent the cover plate 116 from being opened by mistake.

As an improvement of this embodiment, one end of the latching member 1172 away from the elastic member 1173 is provided for cooperating with the cover plate 116 so that the cover plate 116 can push the latching member 1172 toward the elastic member 1173 the first slope 101. By setting the first inclined surface 101 , when the cover plate 116 is closed, pressing the cover plate 116 , the cover plate 116 and the first inclined surface 101 can push the latch 1172 toward the elastic member 1173 until the latch groove 1161 and the latch member 1172 are aligned When the elastic member 1173 pushes the latching member 1172 , the latching member 1172 and the latching groove 1161 are inserted into the latching groove 1161 .

As an improvement of this embodiment, the mounting seat 1171 includes a bottom plate 1175 spaced from the top plate 1151 and a vertical plate 1176 extending from the bottom plate 1175 toward the top plate 1151. The bottom plate 1175 and the vertical plate 1176 enclose a receiving cavity 1177, and the vertical plate The side of the 1176 facing the cover 116 is provided with a notch 1178 for one end of the clip 1172 to pass through.

As an improvement of this embodiment, the clip 1172 includes a main body 11721 whose one end is used for snap-fitting with the clip slot 1161 , extension parts 11722 respectively extending oppositely from two sides of the main body 11721 , and extending away from the extension part 11722 One side of the cover plate 116 is a protruding post 11723 extending away from the cover plate 116 , the extension portion 11722 and the protruding post 11723 are both located in the receiving cavity 1177 , the elastic piece 1173 is sleeved outside the protruding post 11723 and both ends of the elastic piece 1173 The extension part 11722 and the vertical plate 1176 are respectively abutted.

As an improvement of this embodiment, the main body 11721 is provided with a second slope 102 on the side facing the button 1174 , and the button 1174 includes a pressing portion 11741 and a push block 11742 on the side of the pressing portion 11741 facing the second slope 102 . , the push block 11742 is used to cooperate with the second inclined surface 102 to push the main body 11721 to withdraw from the card slot 1161 . When the cover plate 116 is opened, the user presses the pressing part 11741, the push block 11742 moves along the pressing direction, and pushes the second inclined surface 102 to form a thrust on the main body 11721 away from the card slot 1161, so that the main body 11721 is withdrawn from the card slot 1161 .

As an improvement of this embodiment, the button assembly 117 further includes a pressing block 1179, and the pressing portion 11741 is formed by two injection molding of soft glue and hard glue. Specifically, the side of the pressing portion 11741 facing the first inner cavity is soft Glue, the pressing block 1179 is arranged between the pressing part 11741 and the main body 11721, and the pressing block 1179 is used to press the soft glue after the button 1174 is installed to achieve the sealing effect.

As an improvement of this embodiment, the side of the push block 11742 away from the pressing portion 11741 is provided with a third inclined surface 103 that cooperates with the second inclined surface 102 .

As an improvement of the present embodiment, the main body 11721 is provided with a second opening 11724 for the push block 11742 to pass through. It can be understood that the main body 11721 may not be provided with the second opening 11724, the main body 11721 may be provided with a protrusion, and the protrusion may be provided with the second inclined surface 102.

As an improvement of this embodiment, the button 1174 further includes a plurality of guide columns 11743 disposed around the push block 11742, and a plurality of hollow columns 11751 are protruded from the bottom plate 1175. The guide columns 11743 can be movably passed through the hollow columns. 1178. The hollow cylinder 1178 forms a guiding effect on the button 1174, so that the pressing of the button 1174 is more convenient.

As an improvement of this embodiment, the main body 11721 located on the side of the extension portion 11722 facing the cover plate 116 includes a first extension portion 11725 extending toward the cover plate 116 , a second extension portion 11725 bent and extending from the first extension portion 11725 toward the top plate 1151 . The two extending portions 11726 and the third extending portion 11727 extending from the second extending portion 11726 toward the cover plate 116 are provided with a plurality of reinforcing ribs 11728 at intervals between the first extending portion 11725 and the second extending portion 11726 . In this design, by providing the reinforcing rib 11728, the reinforcing rib 11728 can enhance the strength of the main body 11721 at the end of the extension portion 11722 facing the cover plate 116, thereby prolonging the service life of the main body 11721.

As an improvement of this embodiment, the side of the pressing portion 11741 away from the push block 11742 is provided with an anti-slip pattern 11744 . By setting the anti-slip stripes 11744, the friction force is increased, and it is convenient for the user to press the pressing portion 11741.

Please refer to FIGS. 1-3 and 13-16. As an improvement of this embodiment, the top of the first side plate 1152 is provided with a downwardly extending groove 11521, and one end of the cover plate 116 is rotatably installed in the groove 11521. , the groove 11521 has two groove side walls 11522 arranged opposite to each other and a groove bottom wall 11523 located between the two groove side walls 11522. The groove bottom wall 11523 is protruded upwardly to limit the rotation angle of the cover plate 116 relative to the top plate 1151 exceeding 180° ° limit protrusion 11524. In this embodiment, by arranging a groove 11521 on the top of the first side plate 1152, one end of the cover plate 116 is rotatably connected to the groove 11521, and the bottom wall 11523 of the groove 11521 is provided with a limit protrusion 11524 extending upward, and The limiting protrusion 11524 is protruded from the outer side of the bottom wall 11523 of the groove, so that when the cover plate 116 is rotated to contact with the limiting protrusion 11524, the limiting protrusion 11524 will prevent the cover plate 116 from continuing to rotate, preventing the cover plate 116 from rotating. The rotation angle exceeds 180°, reducing the risk of damage to the cover plate 116 due to user error. In addition, by controlling the height of the limiting protrusion 11524, the rotation angle of the cover plate 116 can be controlled.

As an improvement of this embodiment, the housing 11 further includes a rotating shaft 136 , one end of the rotating shaft 136 is connected to the side wall 11522 of the groove, and the other end is connected to the cover plate 116 , so that the cover plate 116 can rotate around the axial direction of the rotating shaft 136 . The rotating shaft 136 has a simple structure, which is convenient for production and assembly, and also reduces the production cost.

As an improvement of this embodiment, the water tank mechanism 13 further includes an anti-backflow pipe 137 and an elastic seal 138, and the housing 11 further includes a surrounding frame 118 protruding from the side of the bottom plate 114 facing the first inner cavity. The water tank housing 131 is installed In the enclosure frame 118 , the elastic seal 138 is provided on the side of the enclosure frame 118 away from the first side plate 1152 , and the anti-backflow pipe 137 is installed in the water tank shell 131 , and the anti-backflow pipe 137 is close to the elastic seal 138 . One end is provided with an annular flange 1371 that is bent outward, and an annular groove 1381 for inserting the annular flange 1371 is arranged on the elastic sealing member 138 in alignment. One side wall of the water tank shell 131 is provided with an air intake hole for air intake. One end of the anti-backflow pipe 137 provided with an annular flange 1371 passes through the water tank shell 131 and is located in the air intake hole, and the other end is located in the water tank shell. The middle part of 131 can prevent the water in the water tank shell 131 from being poured back; the elastic seal 138 is made of silicone material, and the annular groove 1381 is located in the air intake hole, and the gap between the anti-backflow pipe 137 and the air intake hole is blocked. The sealing can effectively prevent the problem of air leakage from the gap between the anti-backflow pipe 137 and the air inlet hole.

As an improvement of this embodiment, the cover plate 116 includes a plate body 1162 rotatably installed in the groove 11521 and a limiting portion 1163 disposed on the side of the plate body 1162 facing the first inner cavity, and the water tank housing 131 is close to the first side One side of the plate 1152 is provided with a limiting groove 1311 , and the groove wall of the limiting groove 1311 facing the first side plate 1152 is provided for cooperating with the limiting portion 1163 so that the limiting portion 1163 pushes the water tank shell 131 toward the elastic seal 138 the fourth slope 104. During the process of closing the cover 116, the limiting portion 1163 can easily slide into the limiting groove 1311 through the fourth inclined surface 104, and produces a pressing effect on the water tank housing 131 toward the elastic sealing member 138 to prevent backflow. The tube 137 is tightly fitted with the elastic sealing member 138 , thereby improving the sealing effect of the elastic sealing member 138 .

As an improvement of this embodiment, the cover plate 116 further includes a bump 1164 , a fifth slope 105 is provided on the side of the limiting portion 1163 facing the fourth slope 104 , and the fifth slope 105 faces the first side plate from the plate body 1162 The 1152 extends obliquely, and the bump 1164 is disposed on the fifth inclined surface 105 . Specifically, the part where the bump 1164 contacts the fourth inclined surface 104 is a smooth curved surface, which facilitates the bump 1164 to slide into the groove 11521 and withdraw from the groove 11521 .

Referring to FIG. 5 , as an improvement of this embodiment, the ventilator 100 further includes an air inlet duct 15 , a throttle member 16 and a differential pressure sensor (not shown), and the air inlet duct 15 is connected to the first air inlet 112 and the differential pressure sensor (not shown). In the second inner cavity, the throttling member 16 is arranged in the air inlet pipe 15, and the air inlet duct 15 is provided with a first collecting port 151 on the side of the throttling member 16 close to the first air inlet 112 and a first collecting port 151 on the side of the throttling member 16 away from the first air inlet 112 The second collection port 152 on one side of the air inlet 112, the differential pressure sensor has two ports, and the two ports are respectively connected with the first collection port 151 and the second collection port 152. Preferably, the throttle member 16 includes a mounting plate 161 and a plurality of fins 162 arranged side by side on one side of the mounting plate 161 at intervals.

As an improvement of this embodiment, the ventilator 100 further includes an air intake cover 17 and a dust filter cotton 18 , the air intake cover 17 is covered at the first air inlet 112 , and the dust filter cotton 18 is provided on the air intake cover 17 toward the side of the throttle 16 .

Referring to FIG. 17 , as an improvement of this embodiment, the housing 11 further includes a second side plate 1155 disposed on the side of the top plate away from the first side plate 1152 , and the second side plate 1155 includes a second side plate body 11551 and A plastic cover 11552 is detachably connected to the second side plate body 11551. The second side plate body 11551 is provided with a recess 11553. The plastic cover 11552 can be opened to cover the recess 11553. The recess 11553 is provided with DC power input ports 201, PS/ 2 interface 202, micro USB interface 203 and SD card slot 204.

As an improvement of this embodiment, the ventilator 100 further includes a display screen 301 and a transparent cover plate 302 . Preferably, the transparent cover plate 302 is an acrylic plate.

The above-mentioned embodiments are only the preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited by this. Any insubstantial changes and replacements made by those skilled in the art on the basis of the present invention belong to the scope of the present invention. The scope of protection of the present utility model.

Claims (16)

1. a ventilator, is characterized in that, comprises: a casing, comprising a first inner cavity, a first air inlet communicating with the first inner cavity, and a first air outlet communicating with the first inner cavity; a fan mechanism for driving gas to flow from the first air inlet to the first air outlet through the first inner cavity, and the fan mechanism is arranged in the first inner cavity; a water tank mechanism for humidifying the gas passing through the fan mechanism, and the water tank mechanism is arranged in the first inner cavity; The rectifier box is used to rectify and reduce noise for the gas flowing from the fan mechanism to the water tank mechanism, and the rectifier box is arranged between the fan mechanism and the water tank mechanism. 2 . The ventilator according to claim 1 , wherein the fan mechanism comprises a fan casing and a fan assembly, the fan casing has a second inner cavity and a second inner cavity communicating with the second inner cavity. 3 . Two air inlets, and a second air outlet communicating with the second inner cavity, the fan assembly is arranged in the second inner cavity for driving air to enter the second inner cavity from the second air inlet and diffuse out from the second air outlet, and the second air inlet communicates with the first air inlet. 3 . The ventilator according to claim 2 , wherein the water tank mechanism comprises a water tank housing and a heating assembly, the water tank housing has a third inner cavity and a third inlet communicating with the third inner cavity. 4 . an air outlet and a third air outlet communicating with the third inner cavity, the third air outlet communicates with the first air outlet, and the heating assembly is installed in the water tank housing for use in the water supply tank housing water heating. 4 . The ventilator according to claim 3 , wherein the rectifier box comprises a fourth inner cavity, a fourth air inlet that communicates with the fourth inner cavity, and a fourth air inlet that communicates with the fourth inner cavity. 5 . An air outlet, the fourth air inlet communicates with the second air outlet, and the fourth air outlet communicates with the third air inlet. 5. The ventilator according to claim 4, wherein the rectifier box comprises a first casing and a second casing connected with the first casing, the first casing and the second casing The fourth inner cavity is formed by enclosing two shells, the fourth air inlet is opened on the first shell, the fourth air outlet is opened on the second shell, and the fourth air inlet is opened on the second shell. A first arc baffle is arranged on the side of the air outlet away from the fourth air outlet, and a second arc baffle is arranged between the fourth air inlet and the fourth air outlet. 6 . The ventilator according to claim 2 , wherein the fan mechanism further comprises an air duct, the fan assembly comprises a volute, an impeller and a motor, and the volute has a fifth inner cavity that communicates with the The fifth air inlet of the fifth inner cavity and the fifth air outlet communicated with the fifth inner cavity, the five air outlets are communicated with the second air outlet, and the motor is installed in the volute away from the On one side of the fifth air inlet, the air guide pipe is used for guiding the air entering the second inner cavity from the second air inlet to the motor. 7 . The ventilator according to claim 6 , wherein the fan mechanism further comprises a baffle plate arranged in the second inner cavity, and the baffle plate divides the second inner cavity into an upper cavity. 8 . chamber and lower chamber, the second air inlet communicates with the lower chamber, the fan assembly is arranged in the upper chamber, the fifth air inlet faces the baffle, the air duct is One end is connected to the separator, and the other end extends to the motor. 8 . The ventilator according to claim 2 , wherein the fan mechanism further comprises a fan shock-absorbing sleeve, the fan shock-absorbing sleeve has a receiving cavity, and the fan assembly is installed in the receiving cavity. The outer side wall of the fan damping sleeve is connected with the fan casing. 9 . The ventilator according to claim 8 , wherein the fan shock-absorbing sleeve is integrally formed of silicone. 10 . 10. The ventilator according to claim 3, wherein the casing comprises a bottom plate, a top casing, a cover plate and a button assembly, the bottom plate and the top casing enclose the first inner cavity, and the The top shell includes a top plate opposite to the bottom plate and a first side plate connected with one side of the top plate, the top plate is provided with a first opening communicating with the inner cavity and a first opening located in the first opening. A side away from the first side plate and connected to the installation opening of the inner cavity, one side of the cover plate is rotatably connected with the first side plate, and the side of the cover plate away from the first side plate A card slot is provided, and the cover plate is used to cover the first opening; the button assembly includes a mounting seat installed on the side of the top plate facing the inner cavity, and a card with one end disposed in the mounting seat A fastener, an elastic member for pressing the fastener to make the fastener be clamped in the card slot, and movably connected with the mounting seat for driving the fastener from the The button is withdrawn from the card slot, and one end of the button is protruded out of the installation opening. 11. The ventilator according to claim 10, wherein the top of the first side plate is provided with a downwardly extending groove, and one end of the cover plate is rotatably installed in the groove, and the concave The groove has two groove side walls arranged opposite to each other and a groove bottom wall located between the two groove side walls. the limit protrusion. 12 . The ventilator according to claim 11 , wherein the water tank mechanism further comprises an anti-backflow pipe and an elastic seal, and the casing further comprises a side protruding from the bottom plate facing the first inner cavity. 13 . the enclosure frame, the water tank shell is installed in the enclosure frame, the elastic seal is arranged on the side of the enclosure frame away from the first side plate, and the anti-backflow pipe is installed in the water tank shell and the end of the anti-backflow pipe close to the elastic sealing member is provided with an outwardly bent annular flange, and the elastic sealing member is provided with an annular groove for the annular flange to be inserted in a corresponding position. 13 . The ventilator according to claim 12 , wherein the cover plate comprises a plate body rotatably installed in the groove and a limiter protruding from the side of the plate body facing the first inner cavity. 14 . The position part, the side of the water tank shell close to the first side plate is provided with a limit groove, and the groove wall of the limit groove facing the first side plate is provided with the limit part for cooperating with the limit part to make The limiting portion pushes the water tank shell toward the inclined surface of the elastic seal. 14. The ventilator according to claim 2, wherein the ventilator further comprises an air inlet pipe, a throttle and a differential pressure sensor, and the air inlet pipe communicates with the first air inlet and the first air inlet. Two inner cavities, the throttling member is arranged in the air inlet pipe, and the air inlet duct is provided with a first collection port on the side of the throttling member close to the first air inlet and a first collection port on the side of the throttling member. A second collection port on the side of the component away from the first air inlet, the differential pressure sensor has two ports, and the two ports are respectively communicated with the first collection port and the second collection port. 15. The ventilator according to claim 14, wherein the ventilator further comprises an air intake cover and a dust filter cotton, the air intake cover cover is provided at the first air inlet, and the dust filter The cotton is arranged on the side of the intake cover facing the throttle. 16. The ventilator according to claim 2, wherein the fan mechanism further comprises a sound-absorbing cotton member disposed in the second inner cavity.

Images