CN218993490U - Warm-air drier - Google Patents

Abstract

The embodiment of the utility model provides a warm air blower, for example, comprising a shell component and a heating component arranged in the shell component, wherein the heating component comprises a bracket, a fixing piece and a heating piece, the bracket is provided with a containing space, and the fixing piece is arranged on the bracket and fixedly connected with the heating piece so as to fix the heating piece in the containing space, and a gap is formed between the heating piece and the peripheral side wall of the containing space. The warm air blower provided by each embodiment of the utility model is arranged in such a way that the heating element is fixedly arranged on the bracket through the fixing element, so that the bracket can be made of conventional temperature-resistant materials, and the material cost of the bracket can be reduced; the gap can avoid the direct contact between the heating element and the bracket, namely, an air gap exists between the heating element and the bracket, and air circulation is facilitated so that heat of the heating element can be emitted outwards.

Description

Warm-air drier

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a warm air blower.

Background

The fan heater is a ventilator capable of emitting warm air, is suitable for forced circulation air heating of families, villas, various workshops and large-scale buildings, and can raise the room temperature to the required temperature in a short time. The current fan heater is widely used and has become a common electrical appliance for people to get warm. The conventional fan heater is generally provided with a shell assembly, and the components such as a fan, a heating assembly and the like in the fan heater are protected through the shell assembly. Wherein, heating element includes the heater of support and lock installation on the support, owing to be direct contact between heater and the support, on the support can be conducted to its heat that produces in the heater during operation, not only caused the heat loss of heater and be unfavorable for the heat to outwards give off, lead to the manufacturing material of support to need high temperature resistant material moreover, and then cause the support cost of manufacture to be higher.

Disclosure of Invention

Therefore, the embodiment of the utility model provides a warm air blower which can reduce the high temperature resistant requirement on the bracket material and is beneficial to outward heat emission of a heating element.

Specifically, the embodiment of the utility model provides a warm air blower, which comprises a shell component and a heating component arranged in the shell component, wherein the heating component comprises a bracket, a fixing piece and a heating piece, the bracket is provided with a containing space, and the fixing piece is arranged on the bracket and fixedly connected with the heating piece so as to fix the heating piece in the containing space, and a gap is formed between the heating piece and the peripheral side wall of the containing space.

In an embodiment of the present utility model, the peripheral sidewall has a plurality of gaps arranged at intervals along a circumferential direction, the number of the fixing members is plural, and the plurality of fixing members are arranged at intervals along the circumferential direction and extend into the accommodating space through the plurality of gaps respectively.

In one embodiment of the present utility model, any of the plurality of holders includes a lower support portion mounted on the bracket and extending into the accommodating space through the corresponding notch, and an upper press portion detachably mounted and fixed to the lower support portion and extending into the accommodating space through the corresponding notch, and the heating member is clamped between the lower support portion and the upper press portion.

In one embodiment of the utility model, the support is provided with a convex column, and the lower support part and the upper pressing part are sequentially sleeved on the convex column.

In one embodiment of the utility model, the stud is connected to a locking member to secure the lower bracket and the upper press together.

In one embodiment of the present utility model, the lower support portion is provided with a limiting portion, and an end of the limiting portion away from the lower support portion contacts the upper pressing portion to maintain a clamping space between the lower support portion and the upper pressing portion for clamping the heating member.

In one embodiment of the present utility model, the upper pressing portion is provided with a limiting portion, and an end of the limiting portion, which is far away from the upper pressing portion, contacts the lower supporting portion to maintain a clamping space between the lower supporting portion and the upper pressing portion for clamping the heating member.

In one embodiment of the present utility model, the limiting portion is disposed in the notch.

In one embodiment of the utility model, the limiting part is provided with a contact part protruding towards the heating part, and the contact part contacts the heating part.

In an embodiment of the utility model, the fan heater further comprises a temperature safety device, the peripheral side wall is provided with a through hole communicated with the accommodating space, the temperature safety device is fixedly arranged on the bracket and is adjacent to the through hole, and the temperature safety device is a temperature fuse or a temperature breaker.

In one embodiment of the utility model, the fan heater further comprises a negative ion generator positioned in the housing assembly, the negative ion generator being fixedly positioned on the support and adjacent to the heating element.

In one embodiment of the utility model, the shell component is provided with an air inlet, an air outlet and an air duct which is communicated with the air inlet and the air outlet, the fan heater also comprises a fan, and the fan and the heating piece are arranged in the air duct; the fan comprises a plurality of fan blades which are arranged at intervals along the circumferential direction of the fan, and the length direction of any fan blade is inclined relative to the central axis of the fan.

According to the warm air blower provided by the embodiments of the utility model, the heating element is arranged and fixed on the bracket through the fixing element, so that the bracket can be made of conventional temperature-resistant materials, and the material cost of the bracket can be reduced; a gap is formed between the heating element and the peripheral side wall of the accommodating space of the bracket, and the gap can prevent the heating element from being in direct contact with the bracket, namely, an air gap exists between the heating element and the bracket, and air circulation is facilitated so that heat of the heating element can be emitted outwards.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used for the embodiments will be briefly described below; it is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic perspective view of a fan heater according to an embodiment of the present utility model.

Fig. 2 is a schematic perspective view of the fan heater of fig. 1 with the housing assembly of the main body removed.

Fig. 3 is a schematic view of another perspective view of the fan heater of fig. 1 with the housing assembly of the main body removed.

Fig. 4 is an exploded perspective view of the fan heater of fig. 1 with the housing assembly removed from the main body.

Fig. 5 is a schematic perspective view showing a heating assembly, a temperature protecting device and a circuit board of the main body of the fan heater shown in fig. 1.

Fig. 6 is an exploded view of a three-dimensional structure of the heating assembly, the temperature safety device and the circuit board shown in fig. 5.

FIG. 7 is a schematic diagram showing a connection relationship between the temperature safety device, the circuit board and the heating element in the heating assembly shown in FIG. 5.

Fig. 8 is a top view of the heating assembly of fig. 5.

Fig. 9 is an enlarged schematic view of the portion C shown in fig. 8.

Fig. 10 is an exploded perspective view of the bracket and holder of the heating assembly of fig. 5.

Fig. 11 is an enlarged schematic view of a perspective structure of the holder shown in fig. 10.

Fig. 12 is an exploded perspective view of the holder of fig. 11.

Fig. 13 is a schematic perspective view showing a combination of a heating assembly, a temperature safety device, a circuit board and a negative ion generator of the main body of the fan heater shown in fig. 1.

Fig. 14 is a schematic perspective view of a fan of the main body of the fan heater shown in fig. 1.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the embodiments of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, an embodiment of the present utility model provides a fan heater 10, which includes a base 11 and a main body 13 connected to the base 11. The main body 13 may be fixedly connected to the base 11 or may be rotatably connected to the base 11. When main part 13 and base 11 swivelling joint, will be provided with the mechanism of shaking head on the base 11 generally, can drive whole main part 13 rotation through the mechanism of shaking head for the warm braw can blow to indoor different places, in order to reach the even purpose of heating. It should be noted that the oscillating mechanism is a mature technology in the prior art, so that the description is omitted here.

Referring to fig. 1 to 3, the main body 13 includes a housing assembly 130 and a heating assembly 132 and a fan 134 disposed within the housing assembly 130.

Referring to fig. 4 to 6 and 8 to 10, the heating assembly 132 includes a bracket 1320, a holder 1322, and a heating member 1323. The support 1320 is, for example, a frame structure, and has a receiving space 13201 at a middle portion thereof. The holder 1322 is fixedly disposed on the bracket 1320 and fixedly connected to the heating element 1323 to fix the heating element 1323 in the accommodating space 13201, and to form a gap having a certain distance d (see fig. 9) between the heating element 1323 and the peripheral sidewall 13200 of the accommodating space 13201. The heating element 1323 is, for example, a positive temperature coefficient (Positive Temperature Coefficient, PTC) heater. It should be noted that the gap herein may avoid direct contact between the heating element 1323 and the support 1320, i.e. an air gap exists between the heating element 1323 and the support 1320, and may also facilitate outward dissipation of heat from the heating element 1323. The fixing member 1322 is selected from thermoplastic engineering plastic, such as PPS plastic (i.e., polyphenylene sulfide plastic), which has the characteristics of high mechanical strength, high temperature resistance, flame retardance, and good thermal stability, and can not only reliably fix the heating member 1323 to the support 1320, but also bear the high temperature of the heating member 1323 and prevent the heat of the heating member 1323 from being transferred to the support 1320, so that the support 1320 can be made of conventional heat-resistant materials, and further the material cost of the support 1320 can be reduced.

More specifically, as shown in fig. 10, the peripheral wall 13200 of the accommodating space 13201 has a plurality of gaps 13202, for example, arranged at intervals along the circumferential direction, the number of the holders 1322 is a plurality of, for example, six, the plurality of holders 1322 are arranged at intervals along the circumferential direction, and extend into the accommodating space 13201 through the plurality of gaps 13202, respectively.

In some embodiments, such as shown in fig. 5 and 10-12, any of the retainers 1322 includes a lower bracket 13221 and an upper press 13223. The lower support portion 13221 is mounted on the support 1320 and extends into the accommodating space 13201 through the corresponding notch 13202, the upper pressing portion 13223 is detachably mounted and fixed to the lower support portion 13221 and extends into the accommodating space 13201 through the corresponding notch 13202, and the heating element 1323 is clamped in a clamping space between the lower support portion 13221 and the upper pressing portion 13223. For example, the support 1320 is provided with a boss 13204 at a position adjacent to the notch 13202 outside the peripheral sidewall 13200 of the accommodating space 13201, and the lower support portion 13221 and the upper pressing portion 13223 are sequentially sleeved on the boss 13204 to be positioned and mounted on the support 1320. Further, the upper pressing portion 13223 and the lower supporting portion 12331 are provided with through holes, and the upper pressing portion 13223 and the lower supporting portion 13221 are fixed together by a locking member (not shown in the drawings) such as a screw and a boss 13204, so that the upper pressing portion 13223 and the lower supporting portion 13221 are detachably mounted and fixed between the locking member and the support 1320, and the detachable connection manner facilitates the mounting and dismounting of the heating element 112. As is clear from fig. 10 to 12, the lower support portion 13221 is provided with a stopper portion 13222, and one end of the stopper portion 13222 away from the lower support portion 13221 contacts the upper pressing portion 13223 to maintain a clamping space between the lower support portion 13221 and the upper pressing portion 13223 for clamping the heating element 1323, and the stopper portion 13222 is mounted in the corresponding notch 13202. In other embodiments, a limiting portion may also be disposed on the upper pressing portion 13223, such that an end of the limiting portion away from the upper pressing portion 13223 contacts the lower supporting portion 13221 to maintain a clamping space between the lower supporting portion 13221 and the upper pressing portion 13223 for clamping the heating element 1323, and the limiting portion is disposed in the corresponding notch 13202.

In some embodiments, the limiting portion 13222 is provided with a contact portion 13224 protruding toward the heating element 1323, and the contact portion 13224 contacts the heating element 1323. By the arrangement of the contact portion 13224, an air gap can be formed between the limiting portion 13222 and the heating element 1323, which is beneficial for the heat of the heating element 1323 to be emitted outwards.

In some embodiments, as shown in fig. 5 and 6, the fan heater 10 further includes a temperature safety device, such as a temperature fuse 1327, where the peripheral wall 13200 has a through hole 13203 communicating with the accommodating space 13201, and the temperature fuse 1327 is fixedly disposed on the support 1320 and adjacent to the through hole 13203. The thermal fuse 1327, also called a thermal fuse, may sense overheating generated during abnormal operation of the heating element 132, thereby cutting off a circuit to prevent a fire from occurring.

In some embodiments, as shown in fig. 5 and 6, the fan heater 10 further includes a temperature safety device, such as a temperature breaker 1329, where the peripheral wall 13200 has a through hole 13205 communicating with the accommodating space 13201, and the temperature breaker 1329 is fixedly disposed on the support 1320 and extends into the through hole 13205. The temperature breaker 1329 belongs to a temperature control instrument, and when the temperature in a line is too high, the circuit is triggered to be disconnected, so that the burning phenomenon of equipment and even electrical accidents are avoided; when the temperature is reduced to be within the normal range, the circuit is closed, and the normal working state is restored.

In some embodiments, as shown in fig. 5-7, the fan heater 10 further includes a circuit board 1325, the circuit board 1325 is fixedly disposed on the support 1320, the heating element 1323 is electrically connected to the circuit board 1325, and the temperature fuse 1327 and the temperature breaker 1329 are connected in series between the positive electrode of the power supply and the circuit board 1325. The circuit board 1325 obtains a power supply voltage by connecting a power supply positive electrode and a power supply negative electrode.

In some embodiments, such as shown in fig. 1-3 and 13, the heater unit 10 further includes a negative ion generator 1328 positioned within the housing assembly 130, the negative ion generator 1328 being fixedly disposed on the support 1320 adjacent to the heating element 1323. By providing the negative ion generator 1328, negative ions can be attached to the warm air blown out by the fan heater 10, and an effect of purifying air can be achieved.

In some embodiments, for example, as shown in fig. 1 to 4 and 10, the housing assembly 130 is provided with an air inlet 1301, an air outlet 1302, and an air duct communicating the air inlet 1301 with the air outlet 1302, and the fan heater 10 further includes a fan 134, where the fan 134 and the heating element 1323 are disposed. The air intake 1301 may even include a dust filter screen, for example, by forming a plurality of air intake holes. The air outlet 1302 is formed with a plurality of air outlet holes, for example. Heating element 1323 may be disposed adjacent air intake 1301 on the air intake side of fan 134 or adjacent air outlet 1302 on the air outlet side of fan 134. The fan 134 includes, for example, a motor, a connection pad, and a plurality of blades 1340 spaced apart along a circumferential direction of the fan 134 (e.g., the connection pad circumferential direction). The length of any of the blades 1340 is inclined with respect to the central axis OO' of the fan 134. Specifically, the fan 134 has a plurality of lands, for example, five as shown in fig. 14, which are disposed at intervals along the central axis OO 'of the fan 134, and each of the blades 1340 is fixed to the five lands and is gradually twisted by a certain angle in the length direction of the blade 1340 from the leftmost land in the rotation direction of the fan 134 until being fixed to the rightmost land, so that the length direction of the blade 1340 can be inclined by a certain angle β, for example, 2 to 15 degrees with respect to the central axis OO' of the fan 134. By adopting the inclined arrangement mode, each fan blade 1340 is a forward-direction blade, so that the wind pressure of the air outlet of the fan 134 can be enhanced, and the wind speed can be increased.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for the sake of brevity, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above embodiments only represent a few embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.

Claims (10)

1. A fan heater (10), characterized by including casing subassembly (130) and set up heating subassembly (132) in casing subassembly (130), heating subassembly (132) are including support (1320), holder (1322) and heating piece (1323), support (1320) have accommodation space (13201), holder (1322) install set up on support (1320) and with heating piece (1323) fixed connection, in order to fix heating piece (1323) in accommodation space (13201) and make heating piece (1323) and be formed with the clearance between peripheral lateral wall (13200) of accommodation space (13201).

2. The fan heater (10) according to claim 1, wherein the peripheral sidewall (13200) has a plurality of gaps (13202) arranged at intervals along the circumferential direction, the number of the holding members (1322) is plural, and the plurality of holding members (1322) are arranged at intervals along the circumferential direction and respectively extend into the accommodating space (13201) through the plurality of gaps (13202).

3. The warm-air drier (10) according to claim 2, wherein the holder (1322) comprises a lower support (13221) and an upper press (13223), the lower support (13221) is mounted on the support (1320) and extends into the accommodating space (13201) through the corresponding notch (13202), the upper press (13223) is mounted and fixed on the lower support (13221) and extends into the accommodating space (13201) through the corresponding notch (13202), and the heater (1323) is clamped between the lower support (13221) and the upper press (1323).

4. A fan heater (10) according to claim 3, wherein the support (1320) is provided with a protruding column (13204), and the lower support portion (13221) and the upper pressing portion (13223) are sequentially sleeved on the protruding column (13204).

5. A fan heater (10) according to claim 4, wherein the stud (13204) is connected to a locking member to secure the lower support portion (13221) and the upper press portion (13223) together.

6. A fan heater (10) according to claim 3, wherein the lower support (13221) is provided with a limiting part (13222), and one end of the limiting part (13222) away from the lower support (13221) contacts the upper pressing part (13223) to maintain a clamping space between the lower support (13221) and the upper pressing part (13223) for clamping the heating element (1323); or,

the upper pressing part (13223) is provided with a limiting part (13222), and one end of the limiting part (13222) away from the upper pressing part (13223) contacts the lower supporting part (13221) so as to keep a clamping space between the lower supporting part (13221) and the upper pressing part (13223) for clamping the heating element (1323).

7. A fan heater (10) according to claim 6, wherein the limit stop (13222) is arranged in the gap (13202); and/or the number of the groups of groups,

the limiting part (13222) is provided with a contact part (13224) protruding towards the heating element (1323), and the contact part (13224) contacts the heating element (1323).

8. The warm-air drier (10) according to claim 1, wherein the warm-air drier (10) further comprises a temperature safety device, the peripheral side wall (13200) is provided with a through hole (13203/13205) communicated with the accommodating space (13201), the temperature safety device is fixedly arranged on the bracket (1320) and is adjacent to the through hole (13203/13205), and the temperature safety device is a temperature fuse (1327) or a temperature breaker (1329).

9. The fan heater (10) of claim 1, wherein the fan heater (10) further comprises a negative ion generator (1328) located within the housing assembly (130), the negative ion generator (1328) being fixedly disposed on the support (1320) adjacent the heating element (1323).

10. The warm-air drier (10) according to any one of claims 1 to 9, wherein the housing assembly (130) is provided with an air inlet (1301) and an air outlet (1302) and an air duct communicating the air inlet (1301) with the air outlet (1302), the warm-air drier (10) further comprises a fan (134), and the fan (134) and the heating element (1323) are arranged in the air duct; the fan (134) comprises a plurality of fan blades (1340) which are arranged at intervals along the circumferential direction of the fan (134), and the length direction of any fan blade (1340) is inclined relative to the central axis (OO') of the fan (134).

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