CN212962224U

CN212962224U - Water heater cover plate capable of preventing sundries from falling into water heater

Info

Publication number: CN212962224U
Application number: CN202022114984.XU
Authority: CN
Inventors: 李钱生; 林艺锋; 龙欢; 林明培
Original assignee: Wuhan Wanjulong Hvac Equipment Co Ltd
Current assignee: Wuhan Wanjulong Hvac Equipment Co Ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-04-13
Anticipated expiration: 2030-09-24

Abstract

The embodiment of the utility model provides a relate to hot water machine equipment field, disclose a can prevent hot water machine apron that debris fell into. The utility model comprises a cover body, wherein the cover body is provided with a plurality of air inlets, the cover body is also provided with an inclined baffle, the cover body is also provided with a material stopping rod, and each air inlet is provided with a grid net; the precooling device comprises a water collecting box, a connecting part and a plurality of heat exchange plates, an accommodating cavity for mounting a cooling fan is formed between the precooling device and the cover body, the water collecting box is provided with a plurality of vent holes, a flow guide cavity is arranged inside the water collecting box, the number of the heat exchange plates is multiple, and a heat exchange cavity is arranged inside each heat exchange plate; the water collecting tank is communicated with the precooling device. The embodiment of the utility model provides a can prevent hot-water machine apron that debris fell into, the cooling fan department that can solve the hot-water machine has debris to fall into and then gathers on the radiating fin surface easily for radiating efficiency is lower, and the cooling wind temperature that cooling fan sent into simultaneously is when higher, also can influence radiating efficiency's problem.

Description

Water heater cover plate capable of preventing sundries from falling into water heater

Technical Field

The embodiment of the utility model provides a relate to hot water machine equipment field, in particular to can prevent hot water machine apron that debris fell into.

Background

With the development of economy and the improvement of living standard, the use of the water heater in daily life is more and more extensive. A condenser in the water heater is key equipment in the water heater, radiating fins are required to be arranged in the condenser and are inserted between copper pipes in the condenser, and the copper pipes of a plurality of rows of bent disc rows in the condenser are radiated. In order to enable the heat dissipation fins to exchange heat with the condenser copper tubes rapidly, cooling fans are usually arranged at the tops of the condenser and the heat dissipation fins, outside air is arranged on one side of each cooling fan, the condenser and the heat dissipation fins are arranged on the other side of each cooling fan, and cooling air is blown towards the condenser and the heat dissipation fins from top to bottom through the cooling fans, so that the cooling air exchanges heat with the heat dissipation fins when flowing through the condenser and the heat dissipation fins, and heat dissipation is completed. However, the cooling fan is prone to have sundries such as tree branches and leaves or paper scraps on one end in direct contact with the air to fall into the cooling fan, and then the sundries are accumulated on the surface of the fan blade of the cooling fan or the surface of the cooling fin, so that the heat exchange between the cooling fin and the cooling air is affected, and the heat dissipation efficiency is reduced. Meanwhile, when the outside air temperature is high, the temperature of cooling air sent by the cooling fan is relatively high, and heat cannot be sufficiently taken away by exchanging heat with the radiating fins, so that the radiating efficiency is low.

The inventor finds that the following problems exist in the practical operation: the cooling fan of the water heater is easy to have impurities falling into the surface of the radiating fins and accumulating on the surface of the radiating fins, so that the radiating efficiency is low, and meanwhile, when the temperature of cooling air sent by the cooling fan is high, the radiating efficiency is also influenced.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a can prevent hot-water machine apron that debris fell into for cooling fan department that can solve the hot-water machine has debris to fall into and then gathers on the radiating fin surface easily, makes the radiating efficiency lower, and the cooling wind temperature that cooling fan sent into simultaneously is when higher, also can influence the problem of radiating efficiency.

In order to solve the technical problem, an embodiment of the present invention provides a cover plate of a water heater capable of preventing sundries from falling in, including a cover body, wherein the cover body is provided with a plurality of air inlets, the plurality of air inlets are arranged on the cover body at intervals, the cover body is further provided with an inclined baffle, the inclined baffle and the surface of the cover body are arranged at an acute angle, so that the projection of the inclined baffle on the surface where the cover body is connected with the inclined baffle covers the air inlets, the cover body is further provided with a stopper rod, the stopper rod is arranged adjacent to the air inlets, each air inlet is positioned between one stopper rod and one inclined baffle, and each air inlet is provided with a grid net to prevent sundries from falling into; the precooling device comprises a water collecting box, a connecting part and heat exchange plates, one end of the connecting part is connected with the surface of the cover body deviating from the inclined baffle, the other end of the connecting part is connected with the water collecting box, so that the water collecting box is arranged on one side of the cover body deviating from the inclined baffle, an accommodating cavity for installing a cooling fan is formed between the precooling device and the cover body, the water collecting box is provided with a plurality of ventilation holes, the ventilation holes are communicated between the surface of the water collecting box close to the cover body and the surface of the water collecting box far away from the cover body, a flow guide cavity is arranged inside the water collecting box, the heat exchange plates are multiple, a heat exchange cavity is arranged inside each heat exchange plate, the heat exchange plates are respectively connected; the water collecting tank is used for collecting condensed water generated on the surface of the evaporator in the water heater, and the water collecting tank is communicated with the precooling device so as to guide the condensed water into the water collecting box.

In addition, a fan bracket is arranged on the surface of one side, close to the precooling device, of the cover body, and the fan bracket is detachably connected with the cover body. Through setting up the fan bracket that can dismantle the connection with the lid for can dismantle the back with fan bracket earlier when installing cooling fan, earlier with cooling fan and fan bracket combination back, install fan bracket together on the lid together with cooling fan again, make cooling fan's installation convenient and fast.

In addition, the fan support comprises two first baffles, a second baffle and a fan supporting plate which are arranged oppositely and in parallel, two ends of the second baffle are respectively connected with the same side ends of the two first baffles, the first baffles and the second baffles are respectively connected with the fan supporting plate, and the first baffles and the second baffles are perpendicular to the fan supporting plate.

In addition, the surface of the cover body close to one side of the precooling device is provided with a sliding groove, the side walls of the two first baffle plates far away from the fan supporting plate are provided with sliding blocks, and the sliding blocks are matched with the sliding groove so that the fan support and the cover body are relatively separated or combined along the sliding groove. The surface of the cover body close to one side of the precooling device is provided with the sliding groove, and the sliding block is arranged on the fan support, so that the fan support can be installed and detached through the matching of the sliding block and the sliding groove, the mounting and detaching efficiency is improved, and the convenience and the rapidness are realized.

In addition, an acute angle formed by the inclined baffle and the surface of the cover body is set to be within a range of 30 degrees to 60 degrees. The acute angle formed by the inclined baffle and the surface of the cover body is set to be within the range of 30-60 degrees, so that the inclined baffle can shield the air inlet on the surface of the cover body, a certain area of the air inlet is ensured, and dust is prevented from entering while the air inlet amount is ensured.

In addition, there are two connecting parts, and the two connecting parts are respectively connected to two ends of the water collecting box. Through setting up two connecting portion for thereby two connecting portion connect respectively in the both ends of water collection box realize fixed to the water collection box, make the fixed more stable of water collection box.

The water collecting box is provided with a water inlet and a water outlet, the water inlet and the water outlet are both communicated with the flow guide cavity, and the water collecting tank is communicated with the water inlet. Through setting up the water inlet for the water conservancy diversion chamber can communicate with the water inlet, pours into the comdenstion water into through the water inlet to the water conservancy diversion chamber and dispels the heat in advance.

In addition, the heat exchange cavity is provided with absorbent cotton, and the absorbent cotton is attached to the inner surface wall of the heat exchange cavity. Through set up the cotton that absorbs water in the heat transfer chamber for the heat transfer chamber is internal after pouring into the comdenstion water into, is absorbed by the cotton that absorbs water, reduces the comdenstion water and in the evaporation of heat absorption in-process, and it is long when having prolonged the use of comdenstion water.

In addition, the air inlet is a rectangular opening, the inclined baffle is a rectangular plate, the long edge of the inclined baffle is connected with the surface of the cover body, and the long edge of the inclined baffle is parallel to the long edge of the air inlet. The air inlet is a rectangular opening, and the inclined baffle is a rectangular plate, so that the inclined baffle is convenient to be arranged at the edge of the air inlet and shields the whole air inlet.

In addition, the length of the long side of the inclined baffle is larger than that of the long side of the air inlet. The length of the long edge of the inclined baffle is larger than that of the long edge of the air inlet, so that dust is prevented from falling on the edge of the air inlet, and the dust is prevented from falling into the air inlet in a rolling manner, and the dust prevention effect is further improved.

The utility model discloses embodiment sets up air intake and oblique baffle through the surface in lid one side for prior art, and make the projection of oblique baffle on the surface that lid and oblique baffle are connected cover the air intake, make the cooling fan that the lid opposite side set up when drawing the air through the air intake and blowing the cooling wind to radiator fin, the debris that drop in the ambient air are blocked by oblique baffle and ending the thing pole, can't directly fall into cooling fan and radiator fin surface, set up the grid net on the air intake surface simultaneously, further prevent that debris from falling into. The inclined baffle and the surface of the cover body are arranged in an acute angle, so that the air inlet volume is guaranteed, meanwhile, good sundries falling-in preventing effect is achieved, and the heat dissipation capability of the heat dissipation fins and the cooling fan is guaranteed. A water collecting tank is arranged below an evaporator in the water heater, and is used for collecting condensate water with lower temperature generated on the surface of the evaporator, guiding the condensate water into a water collecting box guide cavity in the pre-cooling device, and enabling the condensate water to flow into a heat exchange cavity of each heat exchange plate through the guide cavity. Through setting up precooling apparatus in one side that the lid is close to cooling fan, cooling fan is in between lid and the precooling apparatus, when the fan blows the cooling air towards radiator fin, the cooling air can be through the ventilation hole on the water-collecting box, can flow through the heat transfer plate surface that is equipped with the low temperature comdenstion water simultaneously when flowing through the ventilation hole to cool down in advance to the cooling air, the cooling air after the cooling flows through radiator fin again in order to take away more heats of radiator fin, thereby improved the radiating efficiency.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic structural view of a cover plate of a water heater capable of preventing sundries from falling therein according to a first embodiment of the present invention;

fig. 2 is a schematic bottom view of a cover plate of a water heater according to a first embodiment of the present invention, which can prevent impurities from falling;

fig. 3 is a schematic sectional view of a cover plate of a water heater according to a first embodiment of the present invention, which can prevent foreign materials from falling therein;

fig. 4 is a schematic view illustrating a connection between a precooling apparatus and a water collecting tank according to a first embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present invention, and the embodiments may be mutually incorporated and referred to without contradiction.

The first embodiment of the present invention relates to a cover plate of a water heater, which can prevent sundries from falling into the cover plate, as shown in fig. 1 to 4, and comprises a cover body 100, a pre-cooling device 200 and a water collecting tank 400. The cover 100 is provided with a plurality of air inlets 110, the plurality of air inlets 110 are arranged on the cover 100 at intervals, the cover 100 is further provided with an inclined baffle 120, the inclined baffle 120 and the surface of the cover 100 form an acute angle, so that the projection of the inclined baffle 120 on the surface where the cover 100 is connected with the inclined baffle 120 covers the air inlets 110, the cover 100 is further provided with object stopping rods 140, the object stopping rods 140 are arranged adjacent to the air inlets 110, each air inlet 110 is located between one object stopping rod 140 and one inclined baffle 120, and each air inlet is provided with a grid net 111 to prevent impurities from falling into the air inlets 110. Precooling apparatus 200 includes water collection box 210, connecting portion 220 and heat transfer plate 230, connecting portion 220 one end and lid 100 deviate from the surface connection of inclined baffle 120, the other end is connected with water collection box 210, so that water collection box 210 sets up in the lid 100 and deviates from one side of inclined baffle 120, form the chamber that holds that is used for installing cooling fan between precooling apparatus 200 and the lid 100, water collection box 210 is equipped with a plurality of ventilation holes 211, ventilation holes 211 link up between the surface that is close to lid 100 in water collection box 210 and the surface of keeping away from lid 100, the inside of water collection box 210 is equipped with water conservancy diversion chamber 212, heat transfer plate 230 has a plurality ofly, the inside of every heat transfer plate 230 all is equipped with heat transfer chamber 231, a plurality of heat transfer plates 230 are equallyd divide and are do not keep away from the surface connection of lid 100 with. The water collecting tank 400 is used for collecting the condensed water generated on the surface of the evaporator inside the water heater, and the water collecting tank 400 is communicated with the pre-cooling device 200 to guide the condensed water into the water collecting box 210.

The cover 100 is a flat plate, and may be a circular plate or a rectangular plate according to the specific type of the water heater. The inclined baffle 120 is disposed on a side surface of the cover body 100 facing the outside. The intake vent 110 penetrates between a surface of the cover 100 facing the outside and a surface facing the inside of the hot water machine, so that the cooling fan installed at the side of the cover 100 facing the inside of the hot water machine sucks air through the intake vent 110 and blows cooling air to the heat sink. The inclined baffle 120 and the surface of the cover 100 form an acute angle, and on the surface of the side of the cover 100 facing the outside, the projection of the inclined baffle 120 completely covers the whole of the air inlet 110 to shield the air inlet 110, so that dust can only fall on the inclined baffle 120 and can not fall into the air inlet 110.

The connecting portion 220 is a plate or a rod, so that a certain distance can be formed between the pre-cooling device 200 and a side surface of the cover body 100 facing the inside of the water heater, so as to form an accommodating cavity for installing a cooling fan between the pre-cooling device 200 and the cover body 100, and a certain space is left for installing the cooling fan. A flow guide cavity 212 is formed in the water collection box 210, a certain amount of condensed water substances are guided into the flow guide cavity 212, and the condensed water substances respectively flow into the heat exchange cavities 231 in the heat exchange plates 230 through the flow guide cavity 212. After the cooling fan sucks air and blows out cooling air towards the precooling device 200, the cooling air passes through the water collecting box 210 through the air vents 211 on the water collecting box 210, after the cooling air arrives at one side of the water collecting box 210 departing from the cooling fan, the cooling air can flow through the plurality of heat exchange plates 230 arranged on one side surface of the water collecting box 210 departing from the cooling fan, the cooling air can be cooled in advance by a refrigerant in the heat exchange cavity 231, the cooled cooling air continues to flow to the radiating fins, and therefore more heat of the radiating fins can be taken away, and the radiating efficiency is improved.

The sump 400 is disposed below the evaporator, and after condensed water is condensed on the surface of the evaporator, the condensed water falls into the sump 400, the sump 400 is communicated with the sump case 210, and a pump is disposed in the sump 400 to guide the condensed water into the sump case 210.

The acute angle formed by the inclined baffle 120 and the surface of the cover body 100 is set to be within the range of 30 to 60 degrees. The acute angle formed by the inclined baffle 120 and the surface of the cover body 100 is set to be within the range of 30 degrees to 60 degrees, so that the inclined baffle 120 can shield the air inlet 110 on the surface of the cover body 100, a certain area of the air inlet 110 is ensured, and dust is prevented from entering while the air inlet amount is ensured.

The connection parts 220 are two, and the two connection parts 220 are connected to both ends of the sump case 210, respectively. Through setting up two connecting portion 220 for thereby two connecting portion 220 connect respectively in the both ends of water collection box 210 realize fixed to water collection box 210, make water collection box 210's fixed more stable.

The water collecting box 210 is provided with a water inlet 213 and a water outlet 214, the water inlet 213 and the water outlet 214 are both communicated with the flow guide cavity 212, and the water collecting tank 400 is communicated with the water inlet 213. By arranging the water inlet 213, the diversion cavity 212 can be communicated with the water inlet 213, and condensed water is injected into the diversion cavity 212 through the water inlet 213 to pre-dissipate heat. By arranging the water outlet 214, the condensed water is guided out of the water heater through the water outlet 214 after absorbing heat and raising temperature in the diversion cavity 212 and the heat exchange cavity 231, and new low-temperature condensed water is guided in from the water inlet 213, so that the pre-cooling device 200 can continuously pre-cool the cooling air.

The heat exchange cavity 231 is provided with absorbent cotton 232, and the absorbent cotton 232 is attached to the inner surface wall of the heat exchange cavity 231. Through set up the cotton 232 that absorbs water in heat transfer chamber 231 for heat transfer chamber 231 is internal after pouring into the comdenstion water, is absorbed by the cotton 232 that absorbs water, reduces the comdenstion water and in the evaporation of heat absorption in-process, and it is long when having prolonged the use of comdenstion water.

The air inlet 110 is a rectangular opening, the inclined baffle 120 is a rectangular plate, the long side of the inclined baffle 120 is connected with the surface of the cover 100, and the long side of the inclined baffle 120 is parallel to the long side of the air inlet 110. By arranging the air inlet 110 as a rectangular opening and the inclined baffle 120 as a rectangular plate, the inclined baffle 120 is convenient to be arranged at the edge of the air inlet 110 and shields the whole air inlet 110.

The length of the long side of the inclined baffle 120 is greater than that of the long side of the air inlet 110. The length of the long edge of the inclined baffle 120 is larger than that of the long edge of the air inlet 110, so that dust is prevented from falling on the edge of the air inlet 110 and falling into the air inlet 110, and the dust prevention effect is further improved.

The surface of the cover 100 near the side of the pre-cooling device 200 is provided with a fan bracket 300, and the fan bracket 300 is detachably connected to the cover 100. Through setting up the fan bracket 300 that can dismantle the connection with lid 100 for can dismantle fan bracket 300 earlier the back when installing cooling fan, earlier with cooling fan and fan bracket 300 combination back, install fan bracket 300 together with cooling fan on lid 100 again, make cooling fan's installation convenient and fast.

The fan bracket 300 includes two first baffles 310, a second baffle 320 and a fan supporting plate 330 which are arranged oppositely and in parallel, two ends of the second baffle 320 are respectively connected with the same side ends of the two first baffles 310, the first baffles 310 and the second baffles 320 are respectively connected with the fan supporting plate 330, and the first baffles 310 and the second baffles 320 are both arranged perpendicular to the fan supporting plate 330.

The surface of the cover 100 near one side of the pre-cooling device 200 is provided with a sliding groove 130, the side walls of the two first baffles 310 far from the fan supporting plate 330 are provided with sliding blocks 131, and the sliding blocks 131 are matched with the sliding groove 130, so that the fan bracket 300 is relatively separated from or combined with the cover 100 along the sliding groove 130. The sliding groove 130 is formed in the surface, close to the precooling device 200, of the cover body 100, and the sliding block 131 is arranged on the fan support 300, so that the fan support 300 can be mounted and dismounted through the matching of the sliding block 131 and the sliding groove 130, the mounting and dismounting efficiency is improved, and the convenience and the rapidness are realized.

In this embodiment, the air inlet 110 and the inclined baffle 120 are disposed on the surface of one side of the cover 100, and the projection of the inclined baffle 120 on the surface of the cover 100 connected to the inclined baffle 120 covers the air inlet 110, so that when the cooling fan disposed on the other side of the cover 100 sucks air through the air inlet 110 and blows cooling air to the heat dissipation fins, dust in the outside air is blocked by the inclined baffle 120 and the stopper rod 140, and cannot directly fall into the surfaces of the cooling fan and the heat dissipation fins, and meanwhile, the grid mesh 111 is disposed on the surface of the air inlet 110, thereby further preventing impurities from falling into the surface. The inclined baffle 120 and the surface of the cover body 100 are arranged at an acute angle, so that the air inlet volume is ensured, meanwhile, good sundries falling-in prevention effect is achieved, and the heat dissipation capability of the heat dissipation fins and the cooling fan is ensured. A water collection tank 400 is disposed below the evaporator inside the water heater, and collects the condensed water with a low temperature generated on the surface of the evaporator, and guides the condensed water into the diversion cavity 212 of the water collection box 210 in the pre-cooling device 200, and flows into the heat exchange cavity 231 of each heat exchange plate 230 through the diversion cavity 212. Meanwhile, the precooling device 200 is arranged on one side, close to the cooling fan, of the cover body 100, the cooling fan is located between the cover body 100 and the precooling device 200, when the fan blows cooling air towards the radiating fins, the cooling air can pass through the vent holes 211 on the water collecting box 210 and can simultaneously flow through the surface of the heat exchange plate 230 filled with condensed water when flowing through the vent holes 211, so that the cooling air is cooled in advance, and the cooled cooling air flows through the radiating fins again to take away more heat of the radiating fins, so that the radiating efficiency is improved.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.

It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims

1. The utility model provides a can prevent hot water machine apron that debris fell into which characterized in that includes:

the cover body is provided with a plurality of air inlets at intervals, the cover body is also provided with an inclined baffle plate, the inclined baffle plate and the surface of the cover body form an acute angle, so that the projection of the inclined baffle plate on the surface of the cover body connected with the inclined baffle plate covers the air inlets, the cover body is also provided with an object stopping rod, the object stopping rod and the air inlets are adjacently arranged, each air inlet is positioned between one object stopping rod and one inclined baffle plate, and each air inlet is provided with a grid net to prevent sundries from falling into the air inlet;

the precooling device comprises a water collecting box, a connecting part and a heat exchange plate, one end of the connecting part is connected with the surface of the cover body, which is far away from the inclined baffle plate, the other end of the connecting part is connected with the water collecting box, so that the water collecting box is arranged at one side of the cover body, which is far away from the inclined baffle plate, an accommodating cavity for installing a cooling fan is formed between the precooling device and the cover body, the water collecting box is provided with a plurality of ventilation holes, the ventilation holes are communicated between the surface of the water collecting box, which is close to the cover body, and the surface of the water collecting box, which is far away from the cover body, a plurality of flow guide cavities are arranged inside the water collecting box, a plurality of heat exchange plates are arranged inside each heat exchange plate, the plurality of heat exchange plates are respectively connected with the surface of the water;

the water collecting tank is used for collecting condensed water generated on the surface of the evaporator in the water heater, and the water collecting tank is communicated with the precooling device so as to guide the condensed water into the water collecting box.

2. The cover plate for a water heater according to claim 1, wherein a fan bracket is disposed on a surface of the cover body near the precooling apparatus, and the fan bracket is detachably connected to the cover body.

3. The cover plate capable of preventing sundries from falling into the water heater according to claim 2, wherein the fan bracket comprises two first baffle plates, a second baffle plate and a fan supporting plate which are arranged oppositely and in parallel, two ends of the second baffle plate are respectively connected with the same side ends of the two first baffle plates, the first baffle plate and the second baffle plate are respectively connected with the fan supporting plate, and the first baffle plate and the second baffle plate are both arranged perpendicular to the fan supporting plate.

4. The cover plate capable of preventing sundries from falling into a water heater as claimed in claim 3, wherein a sliding groove is formed in the surface of one side, close to the pre-cooling device, of the cover body, and sliding blocks are arranged on the side walls, far away from the fan supporting plate, of the two first baffle plates, and are matched with the sliding groove, so that the fan support and the cover body are separated or combined relatively along the sliding groove.

5. The cover plate for a water heater according to claim 1, wherein an acute angle formed between the inclined baffle and the surface of the cover body is set to be in a range of 30 to 60 degrees.

6. The cover plate of a water heater according to claim 1, wherein there are two connecting parts, and the two connecting parts are respectively connected to two ends of the water collecting box.

7. The cover plate of a water heater according to claim 1, wherein the water collecting box is provided with a water inlet and a water outlet, the water inlet and the water outlet are both communicated with the flow guide cavity, and the water collecting tank is communicated with the water inlet.

8. The cover plate capable of preventing sundries from falling into the water heater as claimed in claim 1, wherein the heat exchange cavity is provided with absorbent cotton, and the absorbent cotton is attached to the inner surface wall of the heat exchange cavity.

9. The cover plate capable of preventing sundries from falling into the water heater as claimed in claim 1, wherein the air inlet is a rectangular opening, the inclined baffle is a rectangular plate, the long side of the inclined baffle is connected with the surface of the cover body, and the long side of the inclined baffle is arranged in parallel with the long side of the air inlet.

10. The cover plate of the water heater according to claim 9, wherein the length of the long side of the inclined baffle is greater than the length of the long side of the air inlet.