Heating air outlet device and bath heater

Abstract

The utility model relates to the technical field of heating equipment, and provides a heating air outlet device and a bath heater. The heating air outlet device comprises a mounting bracket and a heating module, a plurality of mounting cavities are formed in the mounting bracket, and air passing channels allowing external airflow to pass through are formed in the mounting cavities; the heating module comprises a plurality of heating blocks, the heating blocks are installed in the installation cavities in a one-to-one correspondence mode in the first direction, the heating blocks are arranged in a staggered mode in the first direction, and the installation heights of at least two heating blocks in the first direction are different. According to the heating air outlet device provided by the invention, heating structures in different shapes can be constructed according to requirements, and the mounting height of each heating block can be correspondingly set according to the difference of the air volume before the air enters each mounting cavity, so that the heat exchange efficiency of heat exchange between airflow at the part with relatively small air volume and the corresponding heating block is improved; the problem that a heating air outlet device is poor in local heat dissipation effect is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating equipment, in particular to a heating air outlet device and a bathroom heater. BACKGROUND

[0002] At present, the heating device of the air-warming bathroom heater mainly adopts a conventional rectangular PTC. The rectangular PTC is relatively easy to process and has a low cost. The air outlet on the panel of the bathroom heater is also designed into a rectangular air outlet accordingly. With the gradual increase of the appearance requirements of the bathroom heater, the air outlet on the panel of the bathroom heater is not limited to the conventional rectangular air outlet. The air outlet is designed into a circular ring shape, etc. The processing difficulty of the circular ring-shaped PTC to be matched is relatively large, and the cost is relatively high. In addition, the bathroom heater usually adopts a centrifugal fan air duct. The PTC is located between the centrifugal fan air duct and the air outlet of the bathroom heater. After the airflow is blown out from the centrifugal fan air duct, the airflow needs to be changed in direction to be blown out from the air outlet of the bathroom heater. As a result, the air volume of the air outlet close to the centrifugal fan air duct is relatively small, which causes the local heat dissipation effect of the PTC to be poor. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a heating air outlet device and a bathroom heater.

[0004] The first aspect of the present application provides a heating air outlet device, comprising:

[0005] A mounting bracket, a plurality of mounting cavities are formed on the mounting bracket, and the mounting cavities form a wind passage for external airflow to pass through;

[0006] A plurality of heating blocks are respectively and one-to-one mounted in the plurality of mounting cavities along a first direction, and the plurality of heating blocks are arranged in a staggered manner along the first direction. At least two of the heating blocks have different mounting heights along the first direction.

[0007] The heating air outlet device provided by the application is characterized in that a plurality of installation cavities are formed on the mounting bracket, and a plurality of heating blocks are installed in the installation cavities one by one, the plurality of heating blocks can jointly form a heating module, that is, the heating module can be jointly formed by a plurality of unit heating blocks, so that the shape of the mounting bracket and the arrangement mode of the plurality of heating blocks arranged on the mounting bracket can be adjusted and set according to the modeling needs of the heating air outlet device, thereby forming a heating structure of other shapes except a rectangular shape, so as to adapt to air outlets of different shapes and sizes, thereby meeting the design needs of different bath heaters for air outlets; the installation cavities form air passing channels for external airflow to pass through, and the heating blocks are located in the installation cavities, so that the external airflow can enter the installation cavities to exchange heat with the heating blocks, the airflow after heat exchange blows out of the installation cavities, thereby taking away the heat of the heating blocks, achieving heat dissipation of the heating blocks, heating the airflow flowing through the heating blocks, and achieving the function of blowing warm air; and the plurality of heating blocks are installed in the plurality of installation cavities one by one along a first direction, and the plurality of heating blocks are arranged in layers along the first direction, at least two heating blocks have different installation heights along the first direction, so that the installation height of each heating block can be set according to the different air volume before entering each installation cavity, thereby increasing the space height of the airflow with relatively small air volume before the airflow contacts the corresponding heating block, thereby improving the heat exchange efficiency of the airflow with relatively small air volume and the corresponding heating block, solving the problem of poor local heat dissipation effect of the heating air outlet device, and thereby improving the overall heat dissipation efficiency of the heating air outlet device.

[0008] In some embodiments, the mounting bracket comprises at least two bracket parts arranged in layers along the first direction, and at least one installation cavity is formed on each bracket part.

[0009] In some embodiments, the plurality of heating blocks are divided into at least two layers along the first direction, the installation height of the heating blocks in the same layer along the first direction is the same, and the installation height of the heating blocks in different layers along the first direction is different.

[0010] In some embodiments, the mounting bracket is a ring-shaped bracket, and the plurality of installation cavities are arranged in the circumferential direction around the axis of the mounting bracket in sequence.

[0011] The plurality of heating blocks are installed in the plurality of installation cavities one by one along the axial direction of the mounting bracket, and the axial direction of the mounting bracket is the first direction.

[0012] In some embodiments, the mounting bracket comprises a first bracket portion and a second bracket portion, the first bracket portion and the second bracket portion are connected end to end to form a ring-shaped structure, and the first bracket portion and the second bracket portion are arranged in a staggered manner along an axial direction of the mounting bracket, and at least one mounting cavity is formed on the first bracket portion and the second bracket portion, respectively.

[0013] In some embodiments, the plurality of heat blocks are divided into two groups along a circumferential direction of the mounting bracket.

[0014] The heat blocks in one group are installed in the mounting cavities formed on the first bracket portion one by one, the heat blocks in the other group are installed in the mounting cavities formed on the second bracket portion one by one, and the installation heights of the heat blocks in the same group along the axial direction of the mounting bracket are the same, and the installation heights of the heat blocks in different groups along the axial direction of the mounting bracket are different.

[0015] In some embodiments, the heating air outlet device further comprises an air outlet duct base.

[0016] The mounting bracket is installed on the air outlet duct base along the first direction, and a guide air space and an air duct air inlet end in communication with the guide air space are formed between the mounting bracket and the air outlet duct base, and the guide air space is in communication with the air passage.

[0017] In some embodiments, at least one of the plurality of heat blocks is arranged adjacent to the air duct air inlet end, and the at least one heat block is arranged in a staggered manner along the first direction away from the air outlet duct base relative to the remaining heat blocks.

[0018] In some embodiments, the air outlet duct base is a ring-shaped base, the ring-shaped base comprises an inner circumferential guide side wall and an outer circumferential side wall surrounding the inner circumferential guide side wall, and one end of the outer circumferential side wall is open to form the air duct air inlet end.

[0019] The inner circumferential guide side wall comprises a first guide side wall segment and a second guide side wall segment, the first guide side wall segment and the second guide side wall segment are connected end to end to form a ring-shaped inner circumferential guide side wall, the first guide side wall segment is arranged adjacent to the air duct air inlet end, and the height of the first guide side wall segment along the axial direction of the air outlet duct base is greater than the height of the second guide side wall segment along the axial direction of the air outlet duct base.

[0020] In some embodiments, the heating air outlet device further comprises a grille cover.

[0021] The grille cover is covered on the mounting bracket along the first direction, and the plurality of heat blocks are located between the grille cover and the mounting bracket.

[0022] In some embodiments, the grid cover is a ring-shaped grid cover, the grid cover comprising at least two grid portions arranged in a staggered manner along the first direction, the shape of the grid cover being adapted to the shape of the mounting bracket.

[0023] The second aspect of the present application provides a bath heater, comprising a cabinet, a centrifugal fan and a heating air outlet device as described in any of the above embodiments.

[0024] The cabinet is provided with an air inlet and an air outlet, the centrifugal fan and the heating air outlet device are located in the cabinet, and the heating air outlet device is located between the centrifugal fan and the air outlet, the shape of the heating air outlet device being adapted to the shape of the air outlet. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and serve to explain the principles of the present application together with the description.

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required to be used in the embodiments or prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor under the premise of these drawings.

[0027] Figure 1 Structure diagram of the heating module of the heating air outlet device according to an embodiment of the present application;

[0028] Figure 2 Assembly structure diagram of the heating module and the mounting bracket of the heating air outlet device according to an embodiment of the present application;

[0029] Figure 3 Exploded structure diagram of the heating air outlet device according to an embodiment of the present application;

[0030] Figure 4 Sectional structure diagram of the heating air outlet device according to an embodiment of the present application after assembly on the bath heater;

[0031] Figure 5 Exploded structure diagram of the heating air outlet device according to an embodiment of the present application after assembly on the bath heater.

[0032] Wherein, 100, heating air outlet device; 100a, air duct air inlet end; 200, centrifugal fan air duct; 200a, air duct air outlet end;

[0033] 1, heating module; 10, heating block; 1a, first layer of heating block; 1b, second layer of heating block; 2, mounting bracket; 20, mounting cavity; 2a, first layer of mounting cavity; 2b, second layer of mounting cavity; 21, first bracket part; 22, second bracket part; 3, air outlet duct base; 31, inner circumferential air guide side wall; 3a, first air guide side wall segment; 3b, second air guide side wall segment; 32, outer circumferential side wall; 4, grille cover; 41, first grille part; 42, second grille part; 5, box body; 51, volute; 6, box cover; 61, box cover air inlet; 7, motor; 8, centrifugal fan wheel; 9, panel; 91, panel air inlet; 92, panel air outlet. DETAILED DESCRIPTION

[0034] In order to enable a clearer understanding of the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein; obviously, the embodiments in the description are only some of the embodiments of the present application, not all the embodiments.

[0036] REFERENCE Figures 1 to 5 As shown in the drawings, some embodiments of the present application provide a heating air outlet device which can be applied to a bath heater to heat the air entering the bath heater, so as to achieve the purpose of blowing warm air into the room; of course, the heating air outlet device can also be applied to other heating devices.

[0037] REFERENCE Figures 1 to 3 As shown in the drawings, the heating air outlet device 100 includes a mounting bracket 2 and a plurality of heating blocks 10. Among them, a plurality of mounting cavities 20 are formed on the mounting bracket 2, and the plurality of heating blocks 10 are installed one by one in the plurality of mounting cavities 20, and the mounting cavities 20 form a through-air channel for external airflow to pass through.

[0038] The plurality of heating blocks 10 can be collectively configured as a heating module 1, that is, the heating module 1 can be collectively configured by a plurality of unit heating blocks 10. In this way, the shape of the mounting bracket 2 and the arrangement of the plurality of heating blocks 10 provided thereon can be adjusted and set according to the modeling needs of the heating air outlet device, so as to be configured into a heating structure of other shapes other than a rectangular shape, so as to adapt to different shapes and sizes of air outlets, so as to meet the design needs of different bath heaters for air outlets.

[0039] And, the plurality of heat blocks 10 are one-to-one corresponding installed in the plurality of installation cavities 20, and the installation cavities 20 form the air passing channels for the external airflow to pass through. In this way, the external airflow can enter the installation cavities 20 to exchange heat with the heat blocks 10, and the airflow after heat exchange blows out of the installation cavities 20, thereby taking away the heat of the heat blocks 10, achieving the heat dissipation of the heat blocks 10, and heating the airflow flowing through the heat blocks 10, achieving the function of blowing warm air.

[0040] Exemplarily, referring to Figure 2 It is shown that the installation support 2 can be a ring-shaped support, and the plurality of heat blocks 10 are arranged in sequence along the circumferential direction around the axial direction of the installation support 2, so as to form a circular ring-shaped heating structure; in addition, the size of the circular ring-shaped heating structure formed can be adjusted by adjusting the number of the heat blocks 10, so as to form circular ring-shaped heating structures of different sizes. Of course, the installation support 2 can also be other shapes, such as circular, rectangular, trapezoidal, etc., and a plurality of installation cavities 20 can be arranged on the installation support 2 according to the shape of the installation support 2, and a corresponding heat block 10 can be installed in each installation cavity 20, so as to form a heating structure of a required shape and size.

[0041] It should be noted that the heat block 10 can be a PTC heat block. Each heat block 10 can adopt a conventional rectangular shape, and the plurality of heat blocks 10 can adopt the same shape and size, so that the processing of the plurality of heat blocks 10 is more convenient; of course, the heat block 10 can also adopt a non-rectangular shape, such as a trapezoidal shape, a triangular shape, or other shapes, and the sizes of the plurality of heat blocks 10 can also be different, so as to utilize the plurality of heat blocks 10 to form more heating structures of different shapes, so as to meet different shape requirements.

[0042] Referring to Figures 1 to 3 It is shown that the plurality of heat blocks 10 are one-to-one corresponding installed in the plurality of installation cavities 20 along the first direction, and the plurality of heat blocks 10 are arranged in layers along the first direction, and at least two heat blocks 10 have different installation heights along the first direction. Figures 1 to 3 Referring to the arrow in

[0043] That is, the installation heights of the plurality of heat blocks 10 on the mounting bracket 2 are not completely the same, or in other words, the plurality of heat blocks 10 are not all on the same plane on the mounting bracket 2, and the installation heights of the plurality of heat blocks 10 on the mounting bracket 2 are high and low, so that the plurality of heat blocks 10 form staggered layers on the mounting bracket 2, and the plurality of heat blocks 10 are arranged in staggered layers along the first direction, that is, the plurality of heat blocks 10 are arranged in staggered layers along the installation direction. In this way, the installation heights of the heat blocks 10 can be set according to the different air volumes before entering each mounting cavity 20, so as to increase the space height for guiding the air flow before the air flow with a relatively small air volume contacts the corresponding heat block 10, thereby improving the heat exchange efficiency of the air flow with a relatively small air volume and the corresponding heat block 10, solving the problem of poor local heat dissipation effect of the heating air outlet device, and thereby improving the overall heat dissipation efficiency of the heating air outlet device.

[0044] Exemplarily, the air volume of the part corresponding to a certain heat block (or a plurality of heat blocks) 10 in the plurality of heat blocks 10 is relatively small, which causes the air flow to pass through the heat block 10 corresponding to the part with a relatively small air volume, and the heat dissipation effect of the heat block 10 in this part is poor, thereby causing the local heat dissipation effect of the heating air outlet device to be poor. The heating air outlet device provided in the embodiment of the present application can arrange the heat block 10 corresponding to the part with a relatively small air volume and the heat blocks 10 of the remaining parts in staggered layers, for example, the heat block 10 corresponding to the part with a relatively small air volume is arranged to be raised along the first direction, that is, the installation height of the heat block 10 corresponding to the part with a relatively small air volume on the mounting bracket 2 is relatively high. In this way, the space height for guiding the air flow before the air flow with a relatively small air volume contacts the corresponding heat block 10 can be increased, thereby increasing the air volume of the part with a relatively small air volume, and further improving the heat exchange efficiency of the air flow with a relatively small air volume and the corresponding heat block 10, solving the problem of poor local heat dissipation effect of the heating air outlet device, and thereby improving the overall heat dissipation efficiency of the heating air outlet device.

[0045] In specific implementation, referring to Figure 3As shown, the mounting cavity 20 forms a wind passage for external airflow to pass through, and the wind passage can be arranged to extend along the first direction, so that the external airflow can be blown into the mounting cavity 20 along the first direction, and after heat exchange with the heat blocks 10 in the mounting cavity 20, the airflow can be blown out of the mounting cavity 20 along the first direction. For example, the mounting cavity 20 has a mounting opening and a wind opening opposite along the first direction, and the heat blocks 10 can be mounted in the mounting cavity 20 along the first direction through the mounting opening and opposite to the wind opening, so that the external airflow can enter the mounting cavity 20 through the wind opening and contact the heat blocks 10 for heat exchange, and the airflow after heat exchange can be blown out of the mounting cavity 20 through the mounting opening. Specifically, the wind opening can be a grid-shaped wind opening, so as to support the heat blocks 10 mounted in the mounting cavity 20 by the grid-shaped wind opening, and also to enable the external airflow to enter the mounting cavity 20 through the grid-shaped wind opening.

[0046] It should be noted that the number of layers of the plurality of heat blocks 10 arranged in the first direction in a staggered manner can be two, or three, four or more, and can be reasonably set and adjusted according to actual needs.

[0047] In addition, the "plurality" in the above embodiments refers to two or more, that is, the number of heat blocks 10 can be two, three or more, and can be reasonably set and adjusted according to actual needs. For example, referring to Figure 2 As shown, the number of heat blocks 10 is eight.

[0048] In some embodiments, referring to Figure 2 and Figure 3 As shown, the mounting bracket 2 includes at least two bracket portions arranged in the first direction in a staggered manner, and at least one mounting cavity 20 is formed on each bracket portion.

[0049] For example, taking the first direction as the height direction of the mounting bracket 2, the mounting bracket 2 includes at least two bracket portions arranged in the first direction in a staggered manner, that is, the mounting bracket 2 includes at least two bracket portions having different height positions along the height direction of the mounting bracket 2, and at least one mounting cavity 20 is formed on each bracket portion, and one heat block 10 is mounted in each mounting cavity 20, so that at least part of the plurality of heat blocks 10 has different mounting heights on the mounting bracket 2 from the remaining heat blocks 10, and the staggered arrangement of the plurality of heat blocks 10 on the mounting bracket 2 is achieved.

[0050] Of course, in specific implementations, the plurality of heat blocks 10 can also be mounted at different height positions of the mounting bracket 2 by setting support ribs of different heights at the bottom of different mounting cavities 20 and the like.

[0051] In some embodiments, referring to Figure 1 and Figure 2As shown, the plurality of heat blocks 10 are divided into at least two layers along the first direction, the heat blocks 10 in the same layer have the same mounting height along the first direction, and the heat blocks 10 in different layers have different mounting heights along the first direction.

[0052] Exemplarily, referring to Figure 1 and Figure 2 As shown, the plurality of heat blocks 10 are divided into two layers along the first direction, which are the first layer heat block 1a and the second layer heat block 1b, the first layer heat block 1a includes 2 heat blocks 10, and the second layer heat block 1b includes 6 heat blocks 10, the 2 first layer heat blocks 1a have the same mounting height along the first direction, the 6 second layer heat blocks 1b have the same mounting height along the first direction, and the first layer heat block 1a and the second layer heat block 1b have different mounting heights along the first direction.

[0053] In this way, the plurality of heat blocks 10 are arranged in staggered layers along the first direction, so as to be arranged in staggered layers according to the size of the air volume of different parts, thereby improving the problem of poor local heat dissipation effect of the heating air outlet device.

[0054] In some embodiments, referring to Figure 2 and Figure 3 As shown, the mounting bracket 2 is a ring-shaped bracket, and the plurality of mounting cavities 20 are arranged in sequence along the circumferential direction around the axis of the mounting bracket 2; and the plurality of heat blocks 10 are respectively and one-to-one mounted in the plurality of mounting cavities 20 along the axial direction of the mounting bracket 2. The axial direction of the mounting bracket 2 is the first direction. In this way, the plurality of heat blocks 10 are arranged in sequence along the circumferential direction around the axial direction of the mounting bracket 2 to form a circular heating structure, thereby matching the circular air outlet.

[0055] In some embodiments, referring to Figure 2 and Figure 3 As shown, the mounting bracket 2 includes a first bracket portion 21 and a second bracket portion 22, the first bracket portion 21 and the second bracket portion 22 are connected end to end to form a ring-shaped structure, and the first bracket portion 21 and the second bracket portion 22 are arranged in staggered layers along the axial direction of the mounting bracket 2, and at least one mounting cavity 20 is formed on the first bracket portion 21 and the second bracket portion 22 respectively.

[0056] Exemplarily, taking the axial direction of the mounting bracket 2 as the height direction of the mounting bracket 2, the first bracket part 21 and the second bracket part 22 are arranged in layers along the axial direction of the mounting bracket 2, that is, one of the first bracket part 21 and the second bracket part 22 is arranged higher than the other of the first bracket part 21 and the second bracket part 22 along the height direction of the mounting bracket 2; at least one mounting cavity 20 is formed on each of the first bracket part 21 and the second bracket part 22, and one heating block 10 is mounted in each mounting cavity 20. The mounting cavities 20 formed on the first bracket part 21 can be referred to as first-layer mounting cavities 2a, the mounting cavities 20 formed on the second bracket part 22 can be referred to as second-layer mounting cavities 2b, the first-layer heating blocks 1a are mounted in the first-layer mounting cavities 2a, and the second-layer heating blocks 1b are mounted in the second-layer mounting cavities 2b. In this way, at least part of the plurality of heating blocks 10 are mounted on the first bracket part 21, and the rest of the heating blocks 10 are mounted on the second bracket part 22, so that the plurality of heating blocks 10 are arranged in layers along the axial direction of the mounting bracket 2.

[0057] In some embodiments, referring to Figure 2 and Figure 3 , the plurality of heating blocks 10 are divided into two groups along the circumferential direction of the mounting bracket 2; the heating blocks 10 in one group are one-to-one mounted in the mounting cavities 20 formed on the first bracket part 21, the heating blocks 10 in the other group are one-to-one mounted in the mounting cavities 20 formed on the second bracket part 22, and the heating blocks 10 in the same group have the same mounting height along the axial direction of the mounting bracket 2, and the heating blocks 10 in different groups have different mounting heights along the axial direction of the mounting bracket 2.

[0058] The heating blocks 10 in one group have the same mounting height, which can be referred to as first-layer heating blocks 1a, the heating blocks 10 in the other group have the same mounting height, which can be referred to as second-layer heating blocks 1b, and the first-layer heating blocks 1a and the second-layer heating blocks 1b have different mounting heights along the axial direction of the mounting bracket 2. In this way, the plurality of heating blocks 10 are arranged in layers along the first direction and divided into two layers, so that the heating blocks 10 are arranged in layers according to the size of the air volume of the air outlet at different positions, thereby improving the problem of poor local heat dissipation effect of the heating air outlet device.

[0059] In some embodiments, referring to Figure 3 and Figure 4As shown, the heating air outlet device 100 further comprises an air outlet duct base 3; the mounting bracket 2 is mounted on the air outlet duct base 3 along the first direction, and a guide air space and an air duct air inlet end 100a in communication with the guide air space are formed between the mounting bracket 2 and the air outlet duct base 3, and the guide air space is in communication with the air passing channel. In this way, the external airflow can enter the guide air space formed between the air outlet duct base 3 and the mounting bracket 2 through the air duct air inlet end 100a, and then enter the air passing channel in communication with the guide air space, contact and exchange heat with the heating block 10 located in the air passing channel, realize the heat dissipation of the heating block 10, and blow out warm air.

[0060] In some embodiments, with reference to Figure 3 As shown, at least one heating block 10 of the plurality of heating blocks 10 is arranged adjacent to the air duct air inlet end 100a, and the at least one heating block 10 is arranged in a staggered manner along the first direction away from the air outlet duct base 3 relative to the remaining heating blocks 10.

[0061] It should be understood that in the case of external airflow being the airflow blown by the centrifugal fan, the external airflow will change direction at the air duct air inlet end 100a when entering the air outlet duct base 3, resulting in relatively small air volume near the air duct air inlet end 100a, thereby causing poor heat dissipation effect of one or more heating blocks 10 near the air duct air inlet end 100a. The above-mentioned embodiments of the present application arrange one or more heating blocks 10 near the air duct air inlet end in a staggered manner along the first direction away from the air outlet duct base 3 relative to the remaining heating blocks 10, which can increase the space height of the guide air space formed between the mounting bracket 2 and the air outlet duct base 3 at this part, thereby increasing the air volume at this part, and further improving the heat exchange efficiency of the airflow with relatively small air volume at this part and the corresponding heating block 10, thereby solving the problem of poor local heat dissipation effect of the heating air outlet device.

[0062] In some embodiments, with reference to Figure 3 , Figure 4 and Figure 5 As shown, the air outlet duct base 3 is an annular base, which comprises an inner guide air side wall 31 and an outer peripheral side wall 32 surrounding the inner guide air side wall 31, and one end of the outer peripheral side wall 32 is open to form the air duct air inlet end 100a; the inner guide air side wall 31 comprises a first guide air side wall segment 3a and a second guide air side wall segment 3b, the first guide air side wall segment 3a and the second guide air side wall segment 3b are connected end to end to form the annular inner guide air side wall 31, the first guide air side wall segment 3a is arranged adjacent to the air duct air inlet end 100a, and the height of the first guide air side wall segment 3a along the axial direction of the air outlet duct base 3 is greater than the height of the second guide air side wall segment 3b along the axial direction of the air outlet duct base 3.

[0063] In specific implementation, with reference to Figure 4 and Figure 5As shown, when the mounting bracket 2 is mounted on the air outlet duct base 3 along the first direction, the mounting bracket 2 can abut against the inner surrounding air guide side wall 31 and the outer surrounding side wall 32 of the air outlet duct base 3, so as to form an air guide space between the side surface of the mounting bracket 2 facing the air outlet duct base 3 and the bottom wall of the air outlet duct base 3. By setting the height of the first air guide side wall section 3a along the axial direction of the air outlet duct base 3 to be greater than the height of the second air guide side wall section 3b along the axial direction of the air outlet duct base 3, the space of the air guide space near the air duct air inlet end 100a can be relatively large, so as to increase the air volume of this part and improve the heat dissipation effect of the airflow flowing through this part and the corresponding heat generating block 10.

[0064] In some embodiments, referring to Figure 3 As shown, the heating air outlet device 100 further comprises a grid cover 4; the grid cover 4 is covered on the mounting bracket 2 along the first direction, and the plurality of heat generating blocks 10 are located between the grid cover 4 and the mounting bracket 2. In this way, the grid cover 4 is used to position the heat generating blocks 10 in the mounting cavity 20 of the mounting bracket 2, and the grid cover 4 is used to form a grid-shaped air outlet structure, so that the external airflow can be blown out through the grid cover 4 after being heated with the heat generating blocks 10 in the mounting cavity 20.

[0065] In some embodiments, referring to Figure 3 As shown, the grid cover 4 is an annular grid cover, and the grid cover 4 comprises at least two grid parts connected end to end along the circumference of the grid cover 4, and at least two grid parts are arranged in a staggered manner along the first direction. The shape of the grid cover 4 is matched with the shape of the mounting bracket 2.

[0066] Exemplarily, referring to Figure 3 As shown, the mounting bracket 2 is an annular bracket, and the mounting bracket 2 comprises a first bracket part 21 and a second bracket part 22 connected end to end along the circumference, and the first bracket part 21 and the second bracket part 22 are arranged in a staggered manner along the axial direction of the mounting bracket 2. The grid cover 4 is an annular grid cover, and the shape of the grid cover 4 is matched with the shape of the mounting bracket 2. The grid cover 4 comprises a first grid part 41 and a second grid part 42 connected end to end along the circumference of the grid cover 4, and the first grid part 41 and the second grid part 42 are arranged in a staggered manner along the axial direction of the grid cover 4.

[0067] In some embodiments, referring to Figures 1 to 3 As shown, the heating air outlet device 100 comprises a heat generating module 1, and the heat generating module 1 comprises a plurality of unit heat generating blocks 10. The plurality of heat generating blocks 10 are arranged in layers, and at least comprise a first layer of heat generating blocks 1a and a second layer of heat generating blocks 1b.

[0068] The heating air outlet device 100 further comprises a mounting bracket 2, the mounting bracket 2 is provided with a plurality of mounting cavities 20 for mounting the heating blocks 10 of the unit, and the plurality of mounting cavities 20 are arranged in layers, wherein 2a is a first layer of mounting cavities, and 2b is a second layer of mounting cavities; the mounting cavities 20 on the mounting bracket 2 are composed of at least two or more mounting cavities 20 according to requirements, and the mounting cavities 20 in different layers are spliced in space to form a ring shape.

[0069] The heating air outlet device 100 further comprises an air outlet duct base 3, the air outlet duct base 3 is a ring-shaped air outlet duct base, and the heights of the first air guide side wall segment 3a and the second air guide side wall segment 3b of the air outlet duct base 3 are also different; the first air guide side wall segment 3a and the second air guide side wall segment 3b of different heights correspond to the mounting bracket 2 respectively, the first air guide side wall segment 3a corresponds to the first layer of mounting cavities 2a and the first layer of heating blocks 1a, and the second air guide side wall segment 3b corresponds to the second layer of mounting cavities 2b and the second layer of heating blocks 1b.

[0070] The heating air outlet device 100 further comprises a grille cover 4, the grille cover 4 is a ring-shaped grille cover, and the grille cover 4 is also arranged in layers correspondingly; the first grille part 41 corresponds to the first layer of mounting cavities 2a and the first layer of heating blocks 1a, and the second grille part 42 corresponds to the second layer of mounting cavities 2b and the second layer of heating blocks 1b.

[0071] Specific assembly, referring to Figure 3 , the plurality of heating blocks 10 of the heating module 1 are correspondingly mounted in the plurality of mounting cavities 20 of the mounting bracket 2, the grille cover 4 is arranged on the mounting bracket 2, and the assembly formed by the heating module 1, the mounting bracket 2 and the grille cover 4 is correspondingly arranged on the air outlet duct base 3; the front surface of the grille cover 4 is a grille window structure, and finally a multi-layer space ring-shaped heating air outlet structure is formed.

[0072] Referring to Figure 4 and Figure 5 , some other embodiments of the present application provide a bath heater, which comprises a box body, a centrifugal fan and a heating air outlet device 100 according to any one of the above embodiments. The box body is provided with an air inlet and an air outlet, the centrifugal fan and the heating air outlet device 100 are located in the box body, the heating air outlet device 100 is located between the centrifugal fan and the air outlet, and the shape of the heating air outlet device 100 is matched with the shape of the air outlet.

[0073] The bath heater provided by the above embodiments of the present application has the beneficial effects of the heating air outlet device of any one of the above embodiments, and thus the beneficial effects of the heating air outlet device of any one of the above embodiments are not repeated here.

[0074] In some embodiments, referring to Figure 4 and Figure 5As shown, the box body includes a box body main body 5 and a box cover 6, the inner side of the box body main body 5 is formed with a volute 51, a centrifugal fan (including a motor 7 and a centrifugal fan wheel 8 in transmission connection with the motor 7) is installed in the volute 51, the box cover 6 is covered on the box body main body 5, the box cover 6 is provided with a box cover air inlet 61, and the volute 51 in the box body main body 5, the box cover air inlet 61, the motor 7 and the centrifugal fan wheel 8 jointly form a centrifugal fan air duct 200.

[0075] Continuing to refer to Figure 4 and Figure 5 As shown, the heating air outlet device 100 is arranged in the box body main body 5, and the air duct air outlet end 200a of the centrifugal fan air duct 200 is connected with the air duct air inlet end 100a of the heating air outlet device 100. The bath heater further includes a panel 9, the panel 9 is covered on the box cover 6, the panel 9 is provided with a panel air inlet 91 and a panel air outlet 92, the panel air inlet 91 corresponds to and communicates with the box cover air inlet 61, and the grille cover 4 of the heating air outlet device 100 is arranged correspondingly to the panel air outlet 92.

[0076] In specific work, after the motor 7 in the box body main body 5 is electrified and starts to rotate, the motor 7 drives the centrifugal fan wheel 8 to start to rotate, air enters from the panel air inlet 9a of the panel 9, then enters the centrifugal fan wheel 8 through the box cover air inlet 61, and then is blown out from the radial direction of the centrifugal fan wheel 8, i.e. the air duct air outlet end 200a of the centrifugal fan air duct 200. The air duct air inlet end 100a of the centrifugal fan air duct 200 is connected with the air duct air inlet end 100a of the heating air outlet device 100, and the air entering from the air duct air inlet end 100a will enter the heating air outlet device 100. The air entering the air outlet air duct base 3 will change direction, and then be heated by the heating module 1, pass through the air outlet window of the grille cover 4, and then be further blown to the panel air outlet 92, so as to blow the heated air to the room.

[0077] According to the characteristics of the centrifugal fan air duct, the centrifugal fan air duct is driven by the motor to enter air from the axial direction of the centrifugal fan wheel, and then blow air out from the radial direction away from the centrifugal fan wheel. The air blown out from the centrifugal fan wheel can change direction only under the guidance of the air outlet air duct guide structure. According to the structural characteristics, the air blown out needs to change direction by 90 degrees (parallel to the air inlet) before it can be blown to the room. According to this characteristic, the air volume is usually the largest at the air outlet air duct guide structure, and the air volume is smaller away from the guide structure. The guide structure is usually arranged at the end of the air outlet according to the requirement, so the air volume of the air blown out at the front end of the air outlet (i.e. the air just out of the centrifugal fan wheel) is smaller.

[0078] According to the characteristics of the air duct of the centrifugal fan, the air duct inlet end 100a of the heating air outlet device 100 is the place with the minimum air volume change in the same plane. If the first layer of heating blocks 1a and the second layer of heating blocks 1b are arranged in the same plane, the air passing through the first layer of heating blocks 1a is less than the air passing through the second layer of heating blocks 1b. The characteristics of the PTC heating block are that the better the ventilation, the better the heat dissipation effect, and the power of the heating module can reach the theoretical set value. Otherwise, if the air volume is small and the ventilation effect is poor, the power and heating efficiency will decrease.

[0079] In order to achieve the optimal heating efficiency of the heating module 1 at different positions, the heating module 1 of the present application is arranged at different positions according to the air volume at the corresponding position, and the installation height of the heating module 1 on the mounting bracket 2 is different. The first layer of heating blocks 1a with small air volume is appropriately raised to increase the space height of the air guide. After increasing the height space of the air guide, the air volume of the air outlet is appropriately increased, thereby improving the heating efficiency of the heating block 10. Finally, the height of the heating block is set according to the air volume of the air outlet, the overall heating efficiency is improved, and the heating effect of the bathroom heater with the layered heating block is better.

[0080] It should be noted that, in the present document, relational terms such as“first” and“second”, and the like, can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms“comprises”,“comprising”, or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by“comprises a...” does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0081] The above description is merely that of a specific implementation of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heating air outlet device, characterized by, The mounting bracket comprises a plurality of mounting cavities formed thereon, and the mounting cavities form a through air passage for external airflow to pass through; A plurality of heat blocks are respectively and one-to-one mounted in the plurality of mounting cavities along a first direction, and the plurality of heat blocks are arranged in different layers along the first direction, and at least two of the heat blocks have different mounting heights along the first direction. The mounting bracket comprises at least two bracket portions arranged in different layers along the first direction, and each of the bracket portions comprises at least one mounting cavity.

2. The heating air outlet device according to claim 1, characterized in that, The plurality of heat blocks are divided into at least two layers along the first direction, the heat blocks in the same layer have the same mounting height along the first direction, and the heat blocks in different layers have different mounting heights along the first direction.

3. The heating, air outlet device of claim 1, wherein, The mounting bracket is a ring-shaped bracket, and the plurality of mounting cavities are arranged in sequence along the circumferential direction around the axis of the mounting bracket.

4. The heating, air outlet device of claim 1, wherein, The plurality of heat blocks are respectively and one-to-one mounted in the plurality of mounting cavities along the axial direction of the mounting bracket, and the axial direction of the mounting bracket is the first direction. The mounting bracket comprises a first bracket portion and a second bracket portion, the first bracket portion and the second bracket portion are connected end to end to form a ring-shaped structure, and the first bracket portion and the second bracket portion are arranged in different layers along the axial direction of the mounting bracket, and the first bracket portion and the second bracket portion respectively comprise at least one mounting cavity.

5. The heating, air outlet device of claim 4, wherein, The plurality of heat blocks are divided into two groups along the circumferential direction of the mounting bracket.

6. The heating, air outlet device of claim 5, wherein, The heat blocks in one group are one-to-one mounted in the mounting cavities formed in the first bracket portion, the heat blocks in the other group are one-to-one mounted in the mounting cavities formed in the second bracket portion, and the heat blocks in the same group have the same mounting height along the axial direction of the mounting bracket, and the heat blocks in different groups have different mounting heights along the axial direction of the mounting bracket. Further comprising an air outlet duct base; 7. The heating air outlet device according to any one of claims 1 to 6, characterized in that, The mounting bracket is mounted on the air outlet duct base along the first direction, and a guide air space and an air duct air inlet end in communication with the guide air space are formed between the mounting bracket and the air outlet duct base, and the guide air space is in communication with the through air passage. At least one of the plurality of heat blocks is arranged adjacent to the air duct air inlet end, and the at least one heat block is arranged in different layers along the first direction away from the air outlet duct base relative to the remaining heat blocks.

8. The heating, air outlet device of claim 7, wherein, The air outlet duct base is a ring-shaped base, which comprises an inner circumferential guide side wall and an outer circumferential side wall surrounding the inner circumferential guide side wall, and one end of the outer circumferential side wall is open to form the air duct air inlet end; 9. The heating, air outlet device of claim 7, wherein, The inner circumferential guide side wall comprises a first guide side wall segment and a second guide side wall segment, the first guide side wall segment and the second guide side wall segment are connected end to end to form a ring-shaped inner circumferential guide side wall, the first guide side wall segment is arranged adjacent to the air duct air inlet end, and the height of the first guide side wall segment along the axial direction of the air outlet duct base is greater than the height of the second guide side wall segment along the axial direction of the air outlet duct base. Further comprising a grille cover; 10. The heating air outlet device according to any one of claims 1 to 6, characterized in that, ​ The grid cover is arranged on the mounting support along the first direction, and a plurality of the heat blocks are located between the grid cover and the mounting support.

11. The heating, air outlet device of claim 10, wherein, The grid cover is a ring-shaped grid cover, the grid cover comprises at least two grid parts connected head to tail along the circumference of the grid cover, and at least two of the grid parts are arranged in a staggered manner along the first direction, and the shape of the grid cover is matched with the shape of the mounting support.

12. A bath heater, characterized by, The air conditioner comprises a cabinet, a centrifugal fan and a heating air outlet device as claimed in any one of claims 1 to 11. The cabinet is provided with an air inlet and an air outlet, the centrifugal fan and the heating air outlet device are located in the cabinet, and the heating air outlet device is located between the centrifugal fan and the air outlet, and the shape of the heating air outlet device is matched with the shape of the air outlet.

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