Bath heater

Abstract

The utility model relates to the technical field of household appliances, and discloses a bath heater which comprises a bath heater body and an air blowing assembly. The air blowing assembly is arranged in the length direction of an air outlet in the bath heater body. The blowing assembly comprises an air duct; the heating cross-flow wind wheel is arranged in the air duct and comprises a fixing ring and a plurality of blades which are arranged and fixed along the circumferential direction of the fixing ring; the blades can emit heat after being electrified; a motor shaft of the driving motor is connected with the fixing ring, and the driving motor is used for driving the heating cross-flow wind wheel to rotate; the power supply assembly comprises a conductive rotor, a conductive stator and a conductive elastic sheet; the conductive rotor and the motor shaft are coaxially arranged, and the conductive rotor is electrically connected with the conductive elastic sheet; the conductive stator is fixed on the bath heater main body and rotates relative to the conductive rotor; and the conductive elastic sheet is fixed on the fixing ring and is electrically connected with each blade, so that each blade becomes a mutually independent heating unit. According to the bath heater, the cross-flow wind wheel with the heating function is adopted, noise is reduced, meanwhile, the length of the air outlet can not be limited, the air supply range is wider, and air outlet is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a bathroom heater. Background Art

[0002] In traditional bathroom heating equipment, especially bathroom heater products, the heating mechanism is mostly based on the combination design of centrifugal fan and PTC (Positive Temperature Coefficient) heater. The PTC heater generates heat through the action of electric current, while the centrifugal fan is responsible for sucking in the surrounding air and blowing it out after heating through the heater, so as to quickly increase the temperature of the bathroom. However, this structure has several shortcomings: First, the air must pass through the narrow gap of the PTC component for heating. This process not only limits the smoothness of the air flow, but also causes significant noise problems due to the vibration caused by the expansion of the air flow due to heat, affecting the user's comfort experience. Secondly, the design characteristics of the centrifugal fan result in a relatively limited length of its air outlet, which cannot provide uniform heating over long distances or over large areas, making the heat distribution in the bathroom uneven. Utility Model Content

[0003] Based on the technical problems of high noise and uneven air output of bathroom heaters in the prior art, the utility model provides a bathroom heater which reduces noise by setting a heating cross-flow fan wheel. At the same time, there is no length limit for the air outlet, so the air supply range is wider and the air output is more uniform.

[0004] The utility model provides a bathroom heater, comprising: a bathroom heater body and a blowing assembly; the bathroom heater body is provided with an air inlet and an air outlet, and the blowing assembly is arranged along the length direction of the air outlet; the blowing assembly comprises:

[0005] Air duct;

[0006] The heat-generating crossflow impeller is arranged in the air duct and comprises a fixing ring and a plurality of blades arranged and fixed along the circumference of the fixing ring; the blades can generate heat when electrified;

[0007] A driving motor, whose motor shaft is connected to the fixing ring, and is used to drive the heating crossflow impeller to rotate;

[0008] A power supply assembly, comprising a conductive rotor, a conductive stator and a conductive spring;

[0009] The conductive rotor is coaxially arranged with the motor shaft and is electrically connected with the conductive spring sheet; the conductive stator is fixed on the bathroom heater body and rotates relative to the conductive rotor; the conductive spring sheet is fixed on the fixing ring and is electrically connected with each blade, so that each blade becomes an independent heating unit.

[0010] In some embodiments, the blowing assembly further includes a spring fixing member, the conductive spring is fixed on the spring fixing member, and the spring fixing member is fixedly connected to the fixing ring.

[0011] In some embodiments, the elastic sheet fixing member is provided with a plurality of bayonet holes corresponding to the blades along its circumferential direction, and the blades are inserted into the bayonet holes corresponding to the bayonet holes;

[0012] The spring sheet fixing member is provided with a plurality of elastic legs along its circumferential direction, and the elastic legs extend out of one side of the bayonet and abut against the blade.

[0013] In some embodiments, the spring sheet fixing member is provided with a retaining wall portion along its outer peripheral edge, a notch is provided on the retaining wall portion on one side of the bayonet, the elastic support foot is embedded in the retaining wall portion and extends out of the notch to abut against the blade.

[0014] In some embodiments, a plurality of positioning posts are disposed on the spring sheet fixing member, a plurality of positioning holes are disposed on the conductive spring sheet corresponding to the positioning posts, and the positioning posts are correspondingly disposed in the positioning holes.

[0015] In some embodiments, the conductive spring sheet, the spring sheet fixing member and the fixing ring are fixedly connected by fasteners.

[0016] In some embodiments, the air duct is formed by a blowing volute, a blowing volute tongue, and side walls arranged on both sides.

[0017] In some embodiments, a ventilation port is disposed on the bathroom heater body, and a ventilation wind wheel assembly is disposed inside the bathroom heater body, and the ventilation wind wheel assembly includes a ventilation volute and a ventilation wind wheel.

[0018] In some embodiments, a partition is provided between the ventilation wheel assembly and the blowing assembly.

[0019] In some embodiments, the material of the blade is a heat-generating metal material or a conductive heating film is provided on the surface of the blade.

[0020] Compared with the prior art, the advantages and positive effects of the utility model are:

[0021] The above-mentioned bathroom heater adopts a cross-flow fan with heating function and abandons the traditional PTC heating module. It not only significantly reduces the noise during heating, but also realizes an unlimited design of the air outlet length, ensuring a wider air supply range and more uniform air output. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the utility model bathroom heater;

[0024] Figure 2 It is a top view of the bathroom heater of the utility model;

[0025] Figure 3 for Figure 2 Middle AA section;

[0026] Figure 4 for Figure 3 The enlarged image at point I in the middle;

[0027] Figure 5 for Figure 3 Enlarged view of II in the middle;

[0028] Figure 6 It is a partial structural schematic diagram of the blowing component in the bathroom heater of the utility model;

[0029] Figure 7 for Figure 2 Middle BB cross section;

[0030] Figure 8 This is a schematic diagram of the structure of the conductive spring in the bathroom heater of the utility model;

[0031] Fig. 9 It is a three-dimensional diagram of the spring piece fixing part in the bathroom heater of the utility model;

[0032] Fig.10 It is a front view of the spring piece fixing member in the bathroom heater of the utility model;

[0033] Fig.11 It is a schematic diagram of the assembly structure of the heating crossflow fan wheel, the spring fixing part and the conductive spring in the bathroom heater of the utility model;

[0034] Description of reference numerals:

[0035] Heater main body 100; air inlet 110; air outlet 120; ventilation port 130; partition 140;

[0036] Blowing assembly 200;

[0037] Air duct 210; blowing volute 211; blowing volute tongue 212;

[0038] Heat-generating crossflow impeller 220; fixing ring 221; blades 222;

[0039] Driving motor 230; motor shaft 231;

[0040] Power supply assembly 240; conductive rotor 241; conductive stator 242; conductive spring 243; elastic support foot 2431; protrusion 2431a; positioning hole 2432; first mounting through hole 2433;

[0041] Shrapnel fixing member 250; bayonet 251; retaining wall portion 252; notch 2521; positioning column 253; second mounting through hole 254;

[0042] Ventilation wind wheel assembly 300; ventilation volute 310; ventilation wind wheel 320. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0045] In the description of the present utility model, 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. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0046] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0047] Reference Figure 1-Figure 11 , is an embodiment of the bathroom heater of the present utility model.

[0048] See also Figure 1-Figure 3 The bathroom heater includes a bathroom heater body 100 and a blowing assembly 200 .

[0049] The main body 100 of the bathroom heater is provided with an air inlet 110 and an air outlet 120. The air outlet 120 is arranged along the length direction of the main body 100 of the bathroom heater.

[0050] The blowing assembly 200 is arranged along the length direction of the air outlet 120. Specifically, the blowing assembly 200 includes an air duct 210, a heat-generating crossflow impeller 220, a driving motor 230 and a power supply assembly 240.

[0051] The air duct 210 is provided in the main body 100 of the bathroom heater. Figure 7 As shown, the air duct 210 is surrounded by a blowing volute 211, a blowing volute tongue 212 and side walls. The air inlet 110 of the air duct 210 is connected to the air inlet 110 of the bathroom heater body 100, and the air outlet 120 of the air duct 210 is connected to the air outlet 120 of the bathroom heater body 100.

[0052] like Figure 4 and Figure 6 As shown, the heat-generating crossflow impeller 220 is disposed in the air duct 210 and includes a fixing ring 221 and a plurality of blades 222 arranged and fixed along the circumference of the fixing ring 221. A plurality of fixing rings 221 are disposed along the length direction of the blades 222.

[0053] The material of the blade 222 is a heatable metal material or a conductive heating film is provided on the surface of the blade 222, and the blade 222 can generate heat after being energized.

[0054] The driving motor 230 has a motor shaft 231 fixedly connected to the fixing ring 221, and is used to drive the heating crossflow impeller 220 to rotate. Specifically, the motor shaft 231 can be fixedly connected to the fixing ring 221 via a shaft sleeve.

[0055] The power supply assembly 240 includes a conductive rotor 241 , a conductive stator 242 and a conductive spring 243 . The power supply assembly 240 appears in pairs and is disposed at both ends of the heat-generating crossflow impeller 220 .

[0056] The conductive rotor 241 is coaxially disposed with the motor shaft 231 and relatively fixed, and the conductive rotor 241 is electrically connected to the conductive spring sheet 243 via a wire.

[0057] The conductive stator 242 is fixed on the bathroom heater body 100 and connected to the whole circuit of the bathroom heater body 100 through a wire. The conductive stator 242 and the conductive rotor 241 rotate relative to each other.

[0058] The conductive spring piece 243 is fixed on the fixing ring 221 , which is an insulating member. The conductive spring piece 243 contacts each blade 222 to achieve electrical connection, so that each blade 222 becomes an independent heating unit.

[0059] During operation, the driving motor 230 drives the heating crossflow fan wheel 220 to rotate, and the conductive rotor 241 rotates relative to the conductive stator 242 to generate current, which supplies power to the blades 222 to make the blades 222 heat up. After the air is sucked into the air duct 210 through the air inlet 110, it flows through the blades 222 of the heating crossflow fan wheel 220 and is heated, and is blown out from the air outlet 120.

[0060] The above-mentioned bathroom heater adopts a cross-flow fan with heating function and abandons the traditional PTC heating module. It not only significantly reduces the noise during heating, but also realizes an unlimited design of 120 length of the air outlet, ensuring a wider air supply range and more uniform air output.

[0061] In this embodiment, the blowing assembly 200 further includes a spring fixing member 250 , which is an insulating member. The conductive spring 243 is fixed on the spring fixing member 250 , and the spring fixing member 250 is fixedly connected to the fixing ring 221 .

[0062] Specifically, Fig. 9 As shown, the elastic sheet fixing member 250 is provided with a plurality of slots 251 corresponding to the blades 222 along the circumferential direction thereof, and the blades 222 are inserted into the slots 251 corresponding to the slots 251 .

[0063] See also Figure 8 The spring fixing member 250 is provided with a plurality of elastic legs 2431 along its circumferential direction. The elastic legs 2431 extend out of one side of the bayonet 251 and abut against the blade 222 .

[0064] Furthermore, the spring sheet fixing member 250 is provided with a retaining wall portion 252 along its outer peripheral edge, a notch 2521 is provided on the retaining wall portion 252 on one side of the bayonet 251, and the elastic support leg 2431 is embedded in the retaining wall portion 252. One side of the elastic support leg 2431 has a protrusion 2431a, and the protrusion 2431a extends out of the notch and abuts against the blade 222. The retaining wall portion 252 has a certain height, and the elastic support leg 2431 is embedded in the retaining wall portion 252, which can play a limiting role, so that the elastic support leg 2431 and the blade 222 are kept in close contact to avoid short circuit.

[0065] A plurality of positioning posts 253 are further provided on the spring fixing member 250 , and a plurality of positioning holes 2432 are provided on the conductive spring 243 corresponding to the positioning posts. The positioning posts are correspondingly arranged in the positioning holes 2432 to play a positioning role when the conductive spring 243 is assembled.

[0066] In this embodiment, the conductive spring sheet 243, the spring sheet fixing member 250 and the fixing ring 221 are respectively provided with a first mounting through hole 2433, a second mounting through hole 254 and a third mounting through hole, and screws and other fasteners pass through the mounting through holes to fasten the three together. The conductive spring sheet 243 maintains close contact with the blade 222 on the fixing ring 221 through the spring sheet fixing member 250, which is highly safe and easy to assemble.

[0067] In this embodiment, if Figure 1 and Figure 3 As shown, a ventilation port 130 is also provided on the bathroom heater body 100, and a ventilation wheel assembly 300 is provided inside the bathroom heater body 100. The ventilation wheel assembly 300 includes a ventilation volute 310 and a ventilation wheel 320. The air outlet of the ventilation volute 310 is connected to the ventilation port 130, and the air inlet of the ventilation volute 310 is connected to the air inlet 110 of the bathroom heater body 100.

[0068] In order to reduce the wind rush between blowing and ventilation, Figure 3 As shown, a partition 140 is further provided between the ventilation wheel assembly 300 and the blowing assembly 200. The partition 140 divides the air inlet 110 into two parts, the part close to the ventilation wheel assembly 300 is used for ventilation and the part close to the blowing assembly 200 is used for blowing.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A bathroom heater, comprising a bathroom heater body and a blowing assembly; the bathroom heater body is provided with an air inlet and an air outlet, and the blowing assembly is arranged along the length direction of the air outlet; characterized in that: The blowing assembly comprises: Air duct; The heat-generating crossflow impeller is arranged in the air duct and comprises a fixing ring and a plurality of blades arranged and fixed along the circumference of the fixing ring; the blades can generate heat when electrified; A driving motor, whose motor shaft is connected to the fixing ring, and is used to drive the heating crossflow impeller to rotate; A power supply assembly, comprising a conductive rotor, a conductive stator and a conductive spring; The conductive rotor is coaxially arranged with the motor shaft and is electrically connected with the conductive spring sheet; the conductive stator is fixed on the bathroom heater body and rotates relative to the conductive rotor; the conductive spring sheet is fixed on the fixing ring and is electrically connected with each blade, so that each blade becomes an independent heating unit.

2. The bathroom heater according to claim 1, characterized in that: The blowing assembly also includes an elastic sheet fixing part, the conductive elastic sheet is fixed on the elastic sheet fixing part, and the elastic sheet fixing part is fixedly connected to the fixing ring.

3. The bathroom heater according to claim 2, characterized in that: The spring-piece fixing member is provided with a plurality of bayonet holes corresponding to the blades along its circumferential direction, and the blades are inserted into the bayonet holes corresponding to the bayonet holes; The spring sheet fixing member is provided with a plurality of elastic legs along its circumferential direction, and the elastic legs extend out of one side of the bayonet and abut against the blade.

4. The bathroom heater according to claim 3, characterized in that: The spring sheet fixing piece is provided with a retaining wall portion along its outer peripheral edge, a notch is provided on the retaining wall portion on one side of the bayonet, the elastic support foot is embedded in the retaining wall portion, and extends out of the notch to abut against the blade.

5. The bathroom heater according to claim 4, characterized in that: The spring sheet fixing member is provided with a plurality of positioning posts, the conductive spring sheet is provided with a plurality of positioning holes corresponding to the positioning posts, and the positioning posts are correspondingly arranged in the positioning holes.

6. The bathroom heater according to claim 5, characterized in that: The conductive spring sheet, the spring sheet fixing piece and the fixing ring are fixedly connected by fasteners.

7. The bathroom heater according to claim 1, characterized in that: The air duct is formed by a blowing volute, a blowing volute tongue and side walls arranged on both sides.

8. The bathroom heater according to claim 1, characterized in that: The bathroom heater body is provided with a ventilation port, and the bathroom heater body is provided with a ventilation wind wheel assembly, and the ventilation wind wheel assembly includes a ventilation volute and a ventilation wind wheel.

9. The bathroom heater according to claim 8, characterized in that: A partition is arranged between the ventilation wind wheel assembly and the blowing assembly.

10. The bathroom heater according to claim 1, characterized in that: The material of the blade is a heat-generating metal material or a conductive heating film is arranged on the surface of the blade.

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