Warm air structure and electric water heater

Abstract

The utility model relates to hot water supply equipment, and discloses a warm air structure and an electric water heater, the warm air structure is used for the electric water heater, the warm air structure mainly comprises a warm air shell and a fan assembly, the inner wall of the warm air shell is provided with a first support and a second support which are arranged at an interval, the first support is provided with a first clamping groove, and the second support is provided with a second clamping groove. A second clamping groove is formed in the second support; one end of the fan assembly is arranged in the first clamping groove and fixedly connected with the first support through a first hoop, and the other end of the fan assembly is arranged in the second clamping groove and fixedly connected with the second support through a second hoop. According to the warm air structure, the two opposite ends of the fan assembly are installed in the first clamping groove of the first support and the second clamping groove of the second support respectively and are fixed through the first hoop and the second hoop, the fastening performance is high, connection is stable, noise generated by the fan assembly can be lowered, and the use experience of the warm air structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot water supply equipment, in particular to a warm air structure and an electric water heater. Background Art

[0002] In order to satisfy the user to use the electric water heater more comfortably in cold weather, the electric water heater is provided with a warm air blowing function. For example, a warm air structure is integrated in the electric water heater.

[0003] The heater of the warm air structure heats the outside air introduced by the fan assembly, and then blows it out by the fan assembly to achieve the warm air function. However, the fan assembly of the existing warm air structure is generally fixed inside the warm air structure with a buckle, which has weak fastening and is prone to noise due to unreliable fixation, resulting in a poor user experience. Utility Model Content

[0004] The first technical problem solved by the utility model is to provide a warm air structure, which effectively solves the problem that the fan assembly of the warm air structure is fixed with a clip, which has weak fastening, is prone to noise, and leads to a poor user experience. The first clamp and the second clamp are used to fix the opposite ends of the fan assembly on the first support and the second support respectively, thereby improving the connection fastening of the fan assembly, reducing noise, and providing a better user experience.

[0005] The second technical problem solved by the utility model is to provide an electric water heater, which effectively solves the problem that the fan assembly of the warm air structure is fixed with a clip, which has weak fastening and is prone to noise, resulting in a poor user experience. The first clamp and the second clamp are used to fix the opposite ends of the fan assembly on the first support and the second support respectively, thereby improving the connection fastening of the fan assembly, reducing noise and providing a better user experience.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] A warm air structure, used for an electric water heater, comprising:

[0008] A heater housing, wherein the inner wall of the heater housing is provided with a first support and a second support arranged at intervals, the first support is provided with a first slot, and the second support is provided with a second slot;

[0009] A fan assembly, one end of which is disposed in the first slot and fixedly connected to the first support via a first clamp, and the other end of which is disposed in the second slot and fixedly connected to the second support via a second clamp.

[0010] Compared with the background technology, the warm air structure described in the utility model has the following beneficial effects: one end of the fan assembly is fixed in the first slot of the first support by a first clamp, and the other opposite end of the fan assembly is fixed in the second slot of the second support by a second clamp, and the two ends of the fan assembly can be reliably fixed by positioning the slot and fastening the clamp, thereby reducing the vibration noise of the fan assembly caused by loose fastening and improving the user experience of the warm air structure.

[0011] In one embodiment, the two ends of the first clamp are fixedly connected to the two ends of the first support through a first fastener, and the two ends of the second clamp are fixedly connected to the two ends of the second support through a second fastener, and the tightness of the first fastener and the second fastener is adjustable.

[0012] In one embodiment, the fan assembly includes a motor and a cross-flow fan, the output shaft of the motor is connected to one end of the rotating shaft of the cross-flow fan, the motor is disposed in the first slot and fixedly connected to the first support via a first clamp, and the other end of the rotating shaft of the cross-flow fan is sleeved with a flexible pad, the flexible pad is disposed in the second slot and fixedly connected to the second support via the second clamp.

[0013] In one of the embodiments, the flexible pad is provided with a through hole, and the rotating shaft of the cross-flow fan passes through the through hole and is rotatable relative to the through hole.

[0014] In one of the embodiments, the first card slot includes a first sub-card slot and a second sub-card slot spaced apart along its axial direction; the motor is provided with a first flange and a second flange spaced apart along its axial direction, and the first flange and the second flange are in contact with the side walls opposite to the first sub-card slot and the second sub-card slot.

[0015] In one embodiment, the first flange and the second flange are both annular.

[0016] In one embodiment, the heater housing comprises:

[0017] A bottom plate is provided with an air inlet, the first support and the second support are respectively arranged on the bottom plate, and the fan assembly is arranged near the air inlet;

[0018] The side panels are arranged around the bottom plate, and the side panels are provided with air outlets.

[0019] In one embodiment, it further includes a heater and a guide portion, wherein the heater is arranged on one side of the base plate close to the air outlet, the fan assembly is arranged on the other side of the base plate, and the guide portion is arranged on the base plate and located between the fan assembly and the heater.

[0020] In one of the embodiments, it further includes an air guide plate, wherein the air guide plate is disposed on the bottom plate between a pair of the air inlets, and the heater is disposed on the air guide plate.

[0021] The above second technical problem is solved by the following technical solution:

[0022] An electric water heater, comprising:

[0023] Water heater housing;

[0024] In the above-mentioned warm air structure, the warm air housing is arranged on the outside of the water heater housing.

[0025] Compared with the background technology, the electric water heater described in the utility model has the following beneficial effects: the electric water heater installed with the warm air structure fixes the opposite ends of the fan assembly in the first slot of the first support and the second slot of the second support of the warm air shell through the first clamp and the second clamp respectively; compared with the existing electric water heater, the fan assembly is reliably connected, the vibration noise caused by loose fastening of the fan assembly is reduced, and a better user experience is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a structural schematic diagram of a warm air structure according to an embodiment of the utility model;

[0028] Figure 2 for Figure 1 A structural diagram from another perspective;

[0029] Figure 3 This is an exploded view of an electric water heater according to an embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 1. Warm air housing; 101. First support; 102. Second support; 103. First slot; 1031. First sub-slot; 1032. Second sub-slot; 104. Second slot; 105. Bottom plate; 106. Air inlet; 107. Side plate; 108. Air outlet; 2. Fan assembly; 201. Motor; 2011. First flange; 2012. Second flange; 202. Crossflow fan; 3. First clamp; 4. Second clamp; 5. Flexible pad; 6. Heater; 7. Guide portion; 8. Air guide plate; 9. Water heater housing. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] In the description of the present application, it should be understood that the terms "upper", "lower", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Combine the following Figures 1 to 3 , describing an embodiment of the utility model.

[0037] According to an embodiment of the present utility model, on the one hand, as Figure 1As shown, a warm air structure is provided, which mainly includes: a warm air housing 1 and a fan assembly 2.

[0038] The warm air structure described in this embodiment is mainly used for electric water heaters. The fan assembly 2 is reliably connected, generates low noise, and provides a good user experience.

[0039] Furthermore, if Figure 3 As shown, the inner wall of the heater housing 1 is provided with a first support 101 and a second support 102 which are spaced apart. The first support 101 is provided with a first clamping groove 103, and the second support 102 is provided with a second clamping groove 104. One end of the fan assembly 2 is provided in the first clamping groove 103 and is fixedly connected to the first support 101 through a first clamp 3. The other end of the fan assembly 2 is provided in the second clamping groove 104 and is fixedly connected to the second support 102 through a second clamp 4.

[0040] It can be seen that the warm air structure provided in the embodiment of the present application fixes one end of the fan assembly 2 in the first slot 103 of the first support 101 through the first clamp 3, and then fixes the other end of the fan assembly 2 in the second slot 104 of the second support 102 through the second clamp 4. By utilizing the slot positioning and the clamp fastening, the two ends of the fan assembly 2 can be reliably fixed, thereby reducing the vibration noise of the fan assembly 2 caused by loose fastening, thereby improving the user experience of the warm air structure.

[0041] It should be noted that the embodiment of the present application does not limit the shapes of the first slot 103 and the second slot 104, and can be adapted according to the shapes of the two ends of the fan assembly 2. For example, the first slot 103 and the second slot 104 can be U-shaped slots, V-shaped slots, etc.

[0042] In one embodiment, the two ends of the first clamp 3 are fixedly connected to the two ends of the first support 101 through a first fastener (not shown in the figure). The two ends of the second clamp 4 are fixedly connected to the two ends of the second support 102 through a second fastener (not shown in the figure). The tightness of the first fastener and the second fastener is adjustable. By tightening the first fastener and the second fastener, the rotation balance of the fan assembly 2 can be fine-tuned, thereby reducing the noise generated by the fan assembly 2 due to unbalanced rotation, and is also conducive to the stable output of air volume, further improving the user experience of the warm air structure.

[0043] It is understandable that the first fastener and the second fastener can be any existing fasteners as required, such as screws, bolts, etc. Correspondingly, the first support 101 and the second support 102 are respectively provided with threaded holes or round holes.

[0044] It should be noted that the embodiment of the present application does not limit the structure of the fan assembly 2, and any existing structure can be selected as needed.

[0045] In one embodiment, Figure 3 As shown, the fan assembly 2 includes a motor 201 and a crossflow fan 202. The output shaft of the motor 201 is connected to one end of the rotating shaft of the crossflow fan 202. The motor 201 is used to drive the crossflow fan 202 to rotate so that the crossflow fan 202 generates airflow. The outer peripheral wall of the motor 201 is arranged in the first clamping groove 103 and is fixedly connected to the first support 101 through the first clamping hoop 3. The other end of the rotating shaft of the crossflow fan 202 is sleeved with a flexible pad 5. The flexible pad 5 is arranged in the second clamping groove 104 and is fixedly connected to the second support 102 through the second clamping hoop 4. Since the crossflow fan 202 is arranged on the second support 102 through the flexible pad 5, the flexibility of the flexible pad 5 can be used to reduce the vibration of the motor 201, thereby further reducing the noise of the fan assembly 2.

[0046] It should be noted that the embodiment of the present application does not limit the material of the flexible pad 5. For example, the flexible pad 5 can be made of conventional flexible materials such as silicone, rubber, etc.

[0047] Further, in one embodiment, the flexible pad 5 is provided with a through hole. The rotating shaft of the crossflow fan 202 is passed through the through hole and can rotate relative to the through hole. That is, when the crossflow fan 202 is working, the crossflow fan 202 rotates relative to the flexible pad 5 to generate airflow, and the flexible pad 5 is fixed relative to the second support 102.

[0048] In addition, a protrusion adapted to the second slot 104 is provided on the peripheral side of the flexible pad 5. The protrusion is clamped in the second slot 104 and then fixed to the second support 102 through the second clamp 4, which can further improve the connection stability of the cross-flow fan 202.

[0049] In one embodiment, Figure 3 As shown, the first slot 103 includes a first sub-slot 1031 and a second sub-slot 1032 spaced apart along its axial direction. The peripheral walls at opposite ends of the motor 201 are respectively disposed in the first sub-slot 1031 and the second sub-slot 1032, and are respectively fixed to the second support 102 by the second clamp 4, so as to further improve the installation stability of the motor 201.

[0050] In addition, the motor 201 is provided with a first flange 2011 and a second flange 2012 at intervals along its axial direction. The first flange 2011 and the second flange 2012 are in contact with the side walls opposite to the first sub-slot 1031 and the second sub-slot 1032. The first flange 2011 and the second flange 2012 are used to further fix the motor 201 to prevent the motor 201 from shaking along the axial direction.

[0051] Specifically, a gap is left between the first sub-slot 1031 and the second sub-slot 1032, and the distance between the first flange 2011 and the second flange 2012 is equal to the gap width between the first sub-slot 1031 and the second sub-slot 1032, so that the first flange 2011 and the second flange 2012 are clamped in the gap.

[0052] Furthermore, in one embodiment, the first flange 2011 and the second flange 2012 are both ring-shaped, with a simple structure and convenient use.

[0053] It should be noted that the embodiment of the present application does not limit the structure of the heater housing 1. Figure 3 As shown, the heater housing 1 mainly includes: a bottom plate 105 and side plates 107 arranged around the bottom plate 105. The bottom plate 105 is provided with an air inlet 106. The first support 101 and the second support 102 are respectively arranged on the bottom plate 105. The fan assembly 2 is arranged near the air inlet 106. The side plate 107 is provided with an air outlet 108.

[0054] Since the fan assembly 2 is arranged near the air inlet 106 and is installed above the first support 101 and the second support 102, the fan assembly 2 can effectively introduce outside air from the air inlet 106 and generate airflow toward the air outlet 108 to meet the air intake requirements of the warm air structure. In addition, the airflow first passes upward from the air inlet 106 through the fan assembly 2 and then flows to the air outlet 108, which can also dissipate heat for the fan assembly 2, prevent the motor 201 from being damaged due to excessive temperature, and is conducive to improving the service life and safety of the motor 201.

[0055] Specifically, in order to reduce the space occupied by the fan assembly 2, the bottom plate 105 is provided with a first support 101 and a second support 102 at opposite ends along the length direction. Figure 1 As shown by arrow A in FIG. 1 , in order to improve the connection stability between the first support 101 , the second support 102 and the bottom plate 105 , the first support 101 , the second support 102 and the bottom plate 105 may be integrally formed.

[0056] In order to further improve the heat dissipation effect of the fan assembly 2, in one embodiment, Figure 2 and Figure 3 As shown, an air inlet 106 is respectively provided at opposite ends of the bottom plate 105 along the length direction. The first support 101 and the second support 102 are respectively arranged near the inner side of one of the air inlets 106, that is, the fixed connection of the fan assembly 2 is arranged near the air inlet 106. The outside air enters the heater housing 1 from both ends of the fan assembly 2, which can improve the heat dissipation uniformity of the fan assembly 2, thereby further improving the service life and safety of the motor 201.

[0057] In one embodiment, Figure 2 As shown, the air outlet 108 is arranged on the side plate 107 located on one side of the width direction of the bottom plate 105. The width direction of the bottom plate 105 is as shown in FIG. Figure 1 As shown by arrow B in FIG. 1 , the air outlet 108 extends along the length direction of the side plate 107. The air outlet 108 is used in conjunction with the air inlet 106 to achieve uniform air inflow and outflow.

[0058] In one embodiment, Figure 3 As shown, the warm air structure also includes a heater 6. The heater 6 is used to heat the outside air introduced from the fan assembly 2 to form warm air at the air outlet 108. The heater 6 is arranged on one side of the base plate 105 close to the air outlet 108, and the fan assembly 2 is arranged on the other opposite side of the base plate 105. In other words, the fan assembly 2 and the heater 6 are separately arranged on opposite sides of the base plate 105. Compared with the traditional structure in which the fan assembly 2 and the heater 6 are integrated, the warm air structure provided in the embodiment of the present application separately arranges the fan assembly 2 and the heater 6, occupies less space, is convenient for installation and use, and is more beautiful.

[0059] Specifically, the heater 6 can be a PTC (Positive Temperature Coefficient) heater. The PTC heater has stable resistance, high safety, small size, and easy installation. It is understandable that in some other embodiments, the heater 6 can also adopt any other conventional structure, and the embodiments of the present application do not impose too many restrictions on this.

[0060] In one embodiment, Figures 1 to 3 As shown, the warm air structure also includes a guide part 7. The guide part 7 is provided with a guide hole, one end of which is provided on the bottom plate 105, and the other end is in contact with the water heater housing 9 of the electric water heater. The water inlet pipe and the water outlet pipe of the electric water heater respectively pass through the guide hole and extend to the outside of the warm air housing 1. The guide part 7 is used to isolate the water inlet pipe and the water outlet pipe from the fan assembly 2 and the heater 6 respectively, so as to prevent the water inlet pipe and the water outlet pipe from leaking or forming condensed water and entering the warm air housing 1, causing the fan assembly 2 and / or the heater 6 to short-circuit, thereby improving safety and reliability.

[0061] Specifically, the air guide 7 is disposed on the bottom plate 105 and is located between the fan assembly 2 and the heater 6. That is, the fan assembly 2 and the heater 6 are respectively located at opposite ends of the air guide 7, so that the air guide 7 is installed by utilizing the gap between the fan assembly 2 and the heater 6, further reducing the occupied space of the warm air structure.

[0062] In one embodiment, Figure 1 and Figure 3As shown, the warm air structure further includes an air guide plate 8. The air guide plate 8 is disposed on the bottom plate 105 between a pair of air inlets 106. The heater 6 is disposed on the air guide plate 8. The fan assembly 2 inhales outside air from the air inlet 106 and blows it toward the air guide plate 8. The air guide plate 8 guides the airflow to the heater 6, which is heated by the heater 6 and blown out to form warm air at the air outlet 108.

[0063] Furthermore, in one embodiment, the inner surface of the base plate 105 is provided with an inclined surface inclined toward the fan assembly 2. The inclined surface is used to install the air guide plate 8 so that the airflow generated by the fan assembly 2 is blown toward the heater 6 through the air guide plate 8. Specifically, the air guide plate 8 can be fixed on the inclined surface of the base plate 105 by a slot structure and a plurality of fasteners. The fasteners can be screws. A plurality of screw holes are correspondingly opened on the inclined surface. The air guide plate 8 and the inclined surface are also provided with avoidance grooves of the guide part 7. The heater 6 can be fixed to the air guide plate 8 by buckles for easy installation.

[0064] According to an embodiment of the present invention, on the other hand, an electric water heater is provided, which mainly comprises: a water heater housing 9 and a warm air structure. The warm air housing 1 is arranged outside the water heater housing 9 .

[0065] The embodiment of the present application is equipped with an electric water heater with the warm air structure, and the opposite ends of the fan assembly 2 are fixed in the first slot 103 of the first support 101 and the second slot 104 of the second support 102 of the warm air housing 1 by the first clamp 3 and the second clamp 4 respectively. Compared with the existing electric water heater, the fan assembly 2 is reliably connected, and the vibration noise caused by the loose fastening of the fan assembly 2 is reduced, which has a better user experience.

[0066] Specifically, the upper end of the side plate 107 of the heater housing 1 is detachably connected to the lower end of the water heater housing 9. The detachable fixed connection can be a snap-fit ​​fixed structure or a fastener fixed structure, and the embodiment of the present application does not impose too many restrictions on this.

[0067] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The specific contents of the above specific implementations only express several implementations of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A warm air structure for an electric water heater, characterized in that: include: A warm air housing (1), wherein the inner wall of the warm air housing (1) is provided with a first support (101) and a second support (102) which are arranged at intervals, the first support (101) is provided with a first card slot (103), and the second support (102) is provided with a second card slot (104); A fan assembly (2), wherein one end of the fan assembly (2) is arranged in the first clamping groove (103) and is fixedly connected to the first support (101) via a first clamp (3), and the other end of the fan assembly (2) is arranged in the second clamping groove (104) and is fixedly connected to the second support (102) via a second clamp (4).

2. The warm air structure according to claim 1, characterized in that: The two ends of the first clamp (3) are fixedly connected to the two ends of the first support (101) via a first fastener, and the two ends of the second clamp (4) are fixedly connected to the two ends of the second support (102) via a second fastener, and the tightness of the first fastener and the second fastener is adjustable.

3. The warm air structure according to claim 2, characterized in that: The fan assembly (2) comprises a motor (201) and a cross-flow fan (202); the output shaft of the motor (201) is connected to one end of a rotating shaft of the cross-flow fan (202); the motor (201) is arranged in the first clamping groove (103) and is fixedly connected to the first support (101) via a first clamp (3); the other end of the rotating shaft of the cross-flow fan (202) is sleeved with a flexible pad (5); the flexible pad (5) is arranged in the second clamping groove (104) and is fixedly connected to the second support (102) via the second clamp (4).

4. The warm air structure according to claim 3, characterized in that: The flexible pad (5) is provided with a through hole, and the rotating shaft of the cross-flow fan (202) is passed through the through hole and is rotatable relative to the through hole.

5. The warm air structure according to claim 3, characterized in that: The first card slot (103) comprises a first sub-card slot (1031) and a second sub-card slot (1032) which are spaced apart along its axial direction; the motor (201) is spaced apart along its axial direction and has a first flange (2011) and a second flange (2012), the first flange (2011) and the second flange (2012) abutting against the side walls of the first sub-card slot (1031) and the second sub-card slot (1032) which are opposite to each other.

6. The warm air structure according to claim 5, characterized in that: The first flange (2011) and the second flange (2012) are both ring-shaped.

7. The warm air structure according to any one of claims 1 to 6, characterized in that: The heater housing (1) comprises: A bottom plate (105) is provided with an air inlet (106), the first support (101) and the second support (102) are respectively arranged on the bottom plate (105), and the fan assembly (2) is arranged close to the air inlet (106); The side panels (107) are arranged around the bottom panel (105), and the side panels (107) are provided with air outlets (108).

8. The warm air structure according to claim 7, characterized in that: It also includes a heater (6) and a guide portion (7), wherein the heater (6) is arranged on one side of the base plate (105) close to the air outlet (108), the fan assembly (2) is arranged on the other side opposite to the base plate (105), and the guide portion (7) is arranged on the base plate (105) and located between the fan assembly (2) and the heater (6).

9. The warm air structure according to claim 8, characterized in that: It also includes an air guide plate (8), wherein the air guide plate (8) is arranged on the bottom plate (105) between a pair of air inlets (106), and the heater (6) is arranged on the air guide plate (8).

10. An electric water heater, characterized in that: include: Water heater housing (9); The warm air structure according to any one of claims 1 to 9, wherein the warm air housing (1) is arranged on the outside of the water heater housing (9).

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