Portable fan heater

Abstract

The utility model discloses a portable fan heater which comprises a shell, a bottom shell arranged at the bottom in the shell, an upper cover arranged above the shell, a heating part arranged on the front side in the shell, an air outlet part arranged on the rear side in the shell, a driving part arranged in the bottom shell, and ventilation parts arranged on the front side and the rear side of the shell. Compared with the prior art, the fan heater has the advantages that the size is smaller than that of an existing fan heater, the fan heater is portable and movable, a user can be prevented from being scalded when touching the air outlet, meanwhile, the fan heater can be quickly mounted, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air heaters, in particular to a portable air heater. Background Art

[0002] Heaters are widely used for heating in cold areas. Common heaters use a fan to draw air from outside the heater into the heater, heat the drawn air through the heating element, and blow the heated air out of the heater by the fan, thereby heating the surrounding environment.

[0003] Portable fan heaters have the advantages of simple structure, low cost, small size and light weight. This type of fan heater can be moved at will and has a stylish appearance, and is deeply loved by consumers.

[0004] However, the existing fan heater is too large and not convenient to move and carry, and its heating method may cause burns when the user touches the air outlet. At the same time, the assembly and installation method of the existing fan heater is relatively complicated, which reduces production efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a portable air heater that can solve at least one of the above technical problems. The technical solution of this utility model is as follows:

[0006] A portable air heater comprises: a shell, a bottom shell is provided at the bottom of the shell, an upper cover is provided above the shell, a heating part is provided on the front side of the shell, an air outlet part is provided on the rear side of the shell, a driving part is provided in the bottom shell, ventilation parts are provided on the front and rear sides of the shell, and mounting mechanisms are provided on the upper and lower sides of the shell to respectively fix the upper cover and the bottom shell.

[0007] Furthermore, the heating unit includes an air guide cover fixedly mounted on the rear side of the housing, a metal mesh is bonded to the rear side of the air guide cover, and a ceramic PTC heating sheet is provided on the front side of the metal mesh.

[0008] Furthermore, the air outlet portion includes a fan fixed on the front side of the shell, a first air collection shell is wrapped on the ceramic PTC heating plate, a second air collection shell is provided on the rear side of the first air collection shell, a plurality of screw holes are provided on the air guide cover, a first screw is inserted into the first air collection shell, and the first screw thread is fitted on the adjacent screw hole.

[0009] Furthermore, the driving part includes a driver fixedly arranged in the bottom shell, an air avoidance groove is provided on the front side of the bottom shell, a power cord is provided on one side of the driver and connected through the air avoidance groove, a buckle groove is provided above the first air collecting shell, a power-carrying plate is buckled in the buckle groove, the power-carrying plate is connected to the ceramic PTC heating plate, connecting wires are provided on both sides of the power-carrying plate, each of the connecting wires is connected to the power cord, and a driving circuit is provided on the rear side of the bottom shell.

[0010] Furthermore, the ventilation portion includes a first ventilation port provided on the front side of the shell, a mounting port provided on the rear side of the shell, a second ventilation port provided on the rear side of the air guide cover, and the second ventilation port is provided in the mounting port.

[0011] Furthermore, the mounting mechanism includes a plurality of connecting screw holes fixed at the bottom of the shell, a plurality of plug-in slots are provided on the bottom shell, a second screw is inserted into each of the plug-in slots, the second screw thread is engaged with the connecting screw hole, a snap-fit ​​groove is provided above the shell, and a clamping block is fixed around the upper cover, and the upper cover is clamped in the snap-fit ​​groove through the clamping block.

[0012] Preferably, the shell is divided into front and back parts.

[0013] In summary, the present invention has the following beneficial effects compared to the prior art:

[0014] The utility model provides a portable air heater, which, when in use, drives the heating part and the air outlet part to operate through the driving part. At this time, the heating part generates heat and transmits the heat to the ventilation part through the air outlet part. The ventilation part can prevent the user from accidentally touching the air outlet and causing burns. At the same time, during assembly, the user can respectively install the upper cover and the bottom shell on the upper and lower sides of the shell through the installation mechanism. Compared with the existing technology, the portable air heater is smaller in size than the existing air heater, can be portable and movable, and can prevent the user from touching the air outlet and causing burns. At the same time, it can be quickly installed, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the present utility model.

[0016] Figure 2 It is a half-section schematic diagram of the present utility model.

[0017] Figure 3 This is one of the exploded schematic diagrams of the present invention.

[0018] Figure 4 This is the second exploded diagram of the present invention.

[0019] Explanation of the accompanying drawings: 1. Shell; 2. Bottom shell; 3. Upper cover; 5. Heating part; 6. Air outlet part; 7. Driving part; 8. Ventilation part; 9. Installation mechanism; 51. Air guide cover; 52. Metal mesh; 53. Ceramic PTC heating plate; 61. Fan; 62. First air collection shell; 63. Second air collection shell; 64. Screw hole; 65. First screw; 71. Driver; 72. Air avoidance groove; 73. Power cord; 74. Buckle groove; 75. Power-on plate; 76. Connecting line; 77. Driving circuit; 81. First ventilation port; 82. Installation port; 83. Second ventilation port; 91. Connecting screw hole; 92. Plug slot; 93. Second screw; 94. Block; 95. Buckle groove. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1 to 4 The portable air heater shown is characterized in that it includes: a shell 1, the shell 1 is arranged in a front and rear split manner, a bottom shell 2 is provided at the bottom of the shell 1, an upper cover 3 is provided above the shell 1, a heating part 5 is provided on the front side of the shell 1, an air outlet part 6 is provided on the rear side of the shell 1, a driving part 7 is provided in the bottom shell 2, ventilation parts 8 are provided on the front and rear sides of the shell 1, and mounting mechanisms 9 are provided on the upper and lower sides of the shell 1, which can respectively fix the upper cover 3 and the bottom shell 2.

[0022] The portable air heater of the above structure drives the heating part 5 and the air outlet part 6 to operate through the driving part 7 when in use. At this time, the heating part 5 generates heat and transmits the heat to the ventilation part through the air outlet part 6. The ventilation part 6 can prevent the user from accidentally touching the air outlet and causing burns. At the same time, during assembly, the user can respectively install the upper cover 3 and the bottom shell 2 on the upper and lower sides of the shell 1 through the installation mechanism 9. Compared with the existing technology, its volume is smaller than the existing air heater, it is portable and movable, and can prevent the user from touching the air outlet and causing burns. At the same time, it can be installed quickly to improve production efficiency.

[0023] like Figure 3 As shown, in some embodiments of the present invention, the heating unit 5 includes an air guide cover 51 fixedly mounted on the rear side of the housing 1, a metal mesh 52 is attached to the rear side of the air guide cover 51, and a ceramic PTC heating plate 53 is provided in front of the metal mesh 52. An external power source is connected via the driving unit 7, so that the driving unit 7 generates heat for the ceramic PTC heating plate 53. The metal mesh 52 can prevent external debris from touching the ceramic PTC heating plate 53 and causing spontaneous combustion. Figure 3As shown, in some embodiments of the present invention, the air outlet 6 includes a fan 61 fixed to the front side of the shell 1, a first air collection shell 62 is wrapped on the ceramic PTC heating plate 53, and a second air collection shell 63 is provided on the rear side of the first air collection shell 62. A plurality of screw holes 64 are provided on the air guide cover 51, and a first screw 65 is inserted into the first air collection shell 62. The first screw 65 is threadedly fitted on the adjacent screw hole 64. An external power supply is connected through the driving part 7, so that the driving part 7 drives the fan 61 to rotate, and the fan 61 performs negative pressure extraction on the outside air through the ventilation part 8. At this time, the outside air is collected and transported to the ceramic PTC heating plate 53 through the first air collection shell 62. At the same time, the outside air and the ceramic PTC heating plate 53 are heat exchanged, and then the hot air is transported to the ventilation part 8 through the second air collection shell 63, so that the hot air is transported to the outside of the shell 1.

[0024] like Figure 3 As shown, in some embodiments of the present invention, the driving part 7 includes a driver 71 fixedly arranged in the bottom shell 2, an air avoidance groove 72 is provided on the front side of the bottom shell 2, a power cord 73 is connected on one side of the driver 71 and through the air avoidance groove 72, a buckle groove 74 is provided above the first air collecting shell 62, and a power-on piece 75 is buckled in the buckle groove 74, the power-on piece 75 is connected to the ceramic PTC heating piece 53, and connecting lines 76 are provided on both sides of the power-on piece 75, each of the connecting lines 76 is connected to the power cord 73, and a driving circuit 77 is provided on the rear side of the bottom shell 2, which is connected to an external power supply through the power cord 73, so that the external power supply drives the fan 61 through the driver 71, and at the same time, the driver 71 is connected to the connecting line 76, so that the connecting line 76 connects the power-on piece 75 to the power supply, and the power-on piece 75 drives the ceramic PTC heating piece 53, and the power-on piece 75 is stuck in the buckle groove 74.

[0025] like Figure 3 and 4 As shown, in some embodiments of the present invention, the ventilation portion 8 includes a first ventilation port 81 provided on the front side of the shell 1, a mounting port 82 provided on the rear side of the shell 1, and a second ventilation port 83 provided on the rear side of the air guide cover 51. The second ventilation port 83 is provided in the mounting port 82. The outside air is drawn into the shell 1 through the first ventilation port 81 provided on the front side of the shell 1, and the hot air is discharged to the outside of the shell 1 through the second ventilation port 83. The first ventilation port 81 and the second ventilation port 83 are both grille-type, which can prevent the user from touching the ceramic PTC heating plate 53 or the fan 61.

[0026] like Figure 4As shown, in some embodiments of the present utility model, the mounting mechanism 9 includes a plurality of connecting screw holes 91 fixed to the bottom of the shell 1, a plurality of plug-in slots 92 are provided on the bottom shell 2, and a second screw 93 is inserted on each of the plug-in slots 92, and the second screw 93 is threadedly engaged with the connecting screw hole 91, and a snap-fit ​​slot 95 is provided above the shell 1, and a clamping block 94 is fixed around the upper cover 3, and the upper cover 3 is clamped in the snap-fit ​​slot 95 through the clamping block 94. Since the shell 1 is arranged in a front and rear split body, when assembling the heater, the user first places the mounting part of the upper cover 3 between the front and rear split bodies of the shell 1. At this time, the user merges the shell 1 so that the mounting part of the upper cover 3 is clamped above the shell 1, and the upper cover 3 is clamped in the snap-fit ​​slot 95 provided above the shell 1 through the clamping block 94 thereon. Then the user places the bottom shell 2 under the shell 1 and inserts the second screw 93 on the plug-in slot 92 at the same time. The user twists the bottom shell 2 to fix it under the shell 1 through the second screw 93.

[0027] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable air heater, characterized in that: include: A housing (1) is provided with a bottom shell (2) at the bottom of the housing (1), an upper cover (3) is provided above the housing (1), a heating portion (5) is provided at the front side of the housing (1), an air outlet portion (6) is provided at the rear side of the housing (1), a driving portion (7) is provided in the bottom shell (2), ventilation portions (8) are provided at the front and rear sides of the housing (1), and mounting mechanisms (9) are provided at the upper and lower sides of the housing (1) for respectively fixing the upper cover (3) and the bottom shell (2).

2. A portable air heater according to claim 1, characterized in that The heating unit (5) comprises an air guide cover (51) fixedly mounted on the rear side of the housing (1), a metal mesh (52) is attached to the rear side of the air guide cover (51), and a ceramic PTC heating plate (53) is provided on the front side of the metal mesh (52).

3. A portable air heater according to claim 2, characterized in that The air outlet portion (6) includes a fan (61) fixed to the front side of the shell (1); a first air collecting shell (62) is wrapped on the ceramic PTC heating plate (53); a second air collecting shell (63) is provided on the rear side of the first air collecting shell (62); a plurality of screw holes (64) are provided on the air guide cover (51); a first screw (65) is inserted into the first air collecting shell (62); and the first screw (65) is threadedly arranged on an adjacent screw hole (64).

4. A portable air heater according to claim 3, characterized in that The driving portion (7) comprises a driver (71) fixedly arranged in the bottom shell (2); a space-avoiding groove (72) is provided on the front side of the bottom shell (2); a power line (73) is provided on one side of the driver (71) and passes through the space-avoiding groove (72) and is connected; a buckle groove (74) is provided above the first air collecting shell (62); a power supply plate (75) is buckled in the buckle groove (74); the power supply plate (75) is connected to the ceramic PTC heating plate (53); connecting lines (76) are provided on both sides of the power supply plate (75); each of the connecting lines (76) is connected to the power supply line (73); and a driving circuit (77) is provided on the rear side of the bottom shell (2).

5. A portable air heater according to claim 2, characterized in that The ventilation portion (8) comprises a first ventilation opening (81) provided on the front side of the housing (1), a mounting opening (82) provided on the rear side of the housing (1), and a second ventilation opening (83) provided on the rear side of the air guide cover (51), wherein the second ventilation opening (83) is provided in the mounting opening (82).

6. A portable air heater according to claim 1, characterized in that The mounting mechanism (9) comprises a plurality of connecting screw holes (91) fixed below the shell (1); a plurality of plug-in slots (92) are provided on the bottom shell (2); a second screw (93) is plugged into each of the plug-in slots (92); the second screw (93) is threadedly engaged with the connecting screw hole (91); a buckling slot (95) is provided above the shell (1); a clamping block (94) is fixed around the upper cover (3); and the upper cover (3) is clamped in the buckling slot (95) through the clamping block (94).

7. A portable air heater according to claim 6, characterized in that The housing (1) is arranged in a split front and rear configuration.

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