High-stability motor of warm air blower

Abstract

A high-stability motor of a fan heater belongs to the technical field of motor equipment. Comprising a top motor shell and a bottom motor shell, circular expanded edges are arranged on the side edges, close to each other, of the top motor shell and the bottom motor shell, a power connector is arranged on one side of the bottom motor shell, and the motor is characterized in that a main shaft is arranged on the top of the top motor shell, and a negative pressure cover is arranged on the surface of the main shaft; according to the utility model, the negative pressure cover is arranged at the top of the top motor shell, is made of a material with a better heat insulation effect, is connected with the main shaft through the bearing and is prevented from synchronously rotating with the main shaft, and meanwhile, the negative pressure cavity is formed between the negative pressure cover and the top motor shell; gas discharge is achieved through a plurality of first exhaust holes and second exhaust holes in the top.

Description

Technical Field

[0001] This utility model belongs to the field of motor equipment technology, specifically relating to a high-stability motor for a heater. Background Technology

[0002] A warm air heater is a combined unit consisting of a fan, an electric motor, and an air heater. It is suitable for various types of workshops and can be used for circulating air heating when the air is free of dust and flammable or explosive gases. Warm air heaters can also be used independently for heating, generally to supplement insufficient radiator heating or to utilize radiators for standby heating, with the remaining heat load handled by the warm air heater.

[0003] Because the motor of a heater uses an electric heating wire to heat the air at its output end, some motors require better protection at the front end to ensure that the motor can be used effectively and stably for a long time. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a highly stable motor for a heater.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a high-stability motor for a heater, comprising a top motor housing and a bottom motor housing, wherein the sides of the top motor housing and the bottom motor housing that are close to each other are provided with circular flared edges, and a power connector is provided on one side of the bottom motor housing. The top of the top motor housing is provided with a main shaft, and a negative pressure cover is provided on the surface of the main shaft. The negative pressure cover is fitted onto the outer surface of the top motor housing. The bottom side of the negative pressure cover forms a bend facing the side of the top motor housing. A negative pressure cavity is formed between the interior of the negative pressure cover and the top motor housing. Multiple side washers are provided on the outer ring of the top motor housing, with the side of the side washers being smaller at the top and larger at the bottom. The side washers and the side of the negative pressure cavity form an air intake channel. An auxiliary air outlet structure is provided around the main shaft on the top of the top motor housing, and the auxiliary air outlet structure is located inside the negative pressure cover. Multiple vertically penetrating heat dissipation holes are opened on the outer ring of the top and bottom motor housings, and the top of the heat dissipation holes communicates with the negative pressure cavity.

[0006] Preferably, a limiting shaft is laterally inserted into the middle section of the main shaft, and the negative pressure cover is located below the limiting shaft.

[0007] Preferably, the auxiliary air outlet structure includes a main gear, an auxiliary shaft, an auxiliary gear, and fan blades. The main gear is sleeved on the surface of the main shaft. Multiple auxiliary shafts are arranged on the top of the top motor housing and surround the main shaft. The auxiliary gears are sleeved on the surface of the auxiliary shafts. The auxiliary gears and the main gear mesh with each other. The fan blades are sleeved on the top surface of the auxiliary shafts.

[0008] Preferably, multiple blocks are provided on the side of the top motor housing, and the bottom of the negative pressure cover is in contact with the blocks.

[0009] Preferably, the top outer ring of the negative pressure cover has multiple first exhaust holes, and the top inner ring of the negative pressure cover has multiple second exhaust holes.

[0010] The beneficial effects of this utility model are as follows: By setting a negative pressure cover on the top of the top motor housing, which is made of a material with good heat insulation effect and is connected to the main shaft by a bearing to prevent synchronous rotation with the main shaft, a negative pressure cavity is formed between the negative pressure cover and the top motor housing. Gas is discharged through multiple first and second exhaust holes on the top. Furthermore, by setting an auxiliary air outlet structure inside the negative pressure cavity, the main gear on the main shaft meshes with the auxiliary gears on multiple auxiliary shafts mounted on the side, so that the rotation of the auxiliary shaft drives the fan blades mounted in the opposite direction on the surface to start rotating, thereby achieving an outward blowing effect. At the same time, by opening multiple heat dissipation holes through the side between the top motor housing and the bottom motor housing, the external cold air can be better penetrated through the housing, accelerating the internal heat dissipation effect, thereby making the motor have better stability and service life. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0012] Figure 2 This is a three-dimensional structural diagram of the present invention without the negative pressure cover installed;

[0013] Figure 3 This is a cross-sectional structural schematic diagram of this utility model.

[0014] In the diagram: 11. Top motor housing; 12. Bottom motor housing; 13. Circular flare; 14. Power connector; 15. Main shaft; 16. Limiting shaft; 17. Stop block; 18. Heat dissipation hole; 2. Negative pressure cover; 21. First exhaust port; 22. Second exhaust port; 23. Bending part; 24. Negative pressure chamber; 25. Side washer; 26. Air intake channel; 3. Auxiliary air outlet structure; 31. Main gear; 32. Auxiliary shaft; 33. Fan blade; 34. Auxiliary gear; 35. Weight reduction hole. Detailed Implementation

[0015] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0016] Example: A high-stability motor for a heater, such as... Figures 1-3As shown, the device includes a top motor housing 11 and a bottom motor housing 12. Both the top and bottom motor housings 11 and 12 have circular flared edges 13 along their adjacent sides. The top and bottom motor housings 11 and 12 are secured by mounting bolts and nuts along these flared edges. A power connector 14 is located on one side of the bottom motor housing 12. A main shaft 15 is located at the top of the top motor housing 11. A negative pressure cover 2 is provided on the surface of the main shaft 15. A limiting shaft 16 is laterally inserted into the middle section of the main shaft 15. The negative pressure cover 2 is located below the limiting shaft 16. Multiple stops 17 are provided on the side of the top motor housing 11. The bottom of the negative pressure cover 2 contacts the stops 17. The negative pressure cover 2 is fitted onto the outer surface of the top motor housing 11. The bottom side of the negative pressure cover 2 forms a bend 23 facing the side of the top motor housing 11. A negative pressure cavity 24 is formed between the interior of the negative pressure cover 2 and the top motor housing 11. Multiple side washers 25 are provided on the outer ring of the top motor housing 11. The side of the side washers 25 is set with the upper part smaller and the lower part larger. The side washers 25 and the side of the negative pressure cavity 24 form an air intake channel 26. An auxiliary air outlet structure 3 is provided around the main shaft 15 on the top of the top motor housing 11. The auxiliary air outlet structure 3 is located inside the negative pressure cover 2. Multiple vertically penetrating heat dissipation holes 18 are opened on the outer ring of the top motor housing 11 and the bottom motor housing 12. The top of the heat dissipation holes 18 communicates with the negative pressure cavity 24.

[0017] The auxiliary air outlet structure 3 includes a main gear 31, an auxiliary shaft 32, an auxiliary gear 34, and a fan blade 33. The main gear 31 is sleeved on the surface of the main shaft 15. Multiple auxiliary shafts 32 are arranged on the top of the top motor housing 11 and are arranged around the main shaft 15. The auxiliary gear 34 is sleeved on the surface of the auxiliary shaft 32. The auxiliary gear 34 and the main gear 31 mesh with each other. The fan blade 33 is sleeved on the top surface of the auxiliary shaft 32.

[0018] The top outer ring of the negative pressure cover 2 has multiple first exhaust holes 21, and the top inner ring of the negative pressure cover 2 has multiple second exhaust holes 22.

[0019] The principle of this utility model is as follows: The rotation of the main shaft 15 can drive the main gear 31 to rotate, thereby the auxiliary gear 34 meshing with the main gear 31 will start to rotate. The auxiliary gear 34 is fixedly sleeved on the surface of the auxiliary shaft 32, thereby driving the auxiliary shaft 32 and the auxiliary gear 34 on the surface to start rotating, thereby causing the fan blades 33 at the top of the auxiliary shaft 32 to start rotating. Since the rotation direction of the auxiliary gear 34 is opposite to that of the main gear 31, the fan blades 33 are reversed, so that the exhaust air blows outward, thereby enabling the multiple heat dissipation holes 18 opened on the side of the housing to quickly take in air. The rapid airflow can better dissipate heat from the housing. At the same time, the negative pressure cover 2 is set on the front side of the motor to block the temperature brought by the front heating wire.

[0020] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A high-stability motor for a heater, comprising a top motor housing (11) and a bottom motor housing (12), wherein the sides of the top motor housing (11) and the bottom motor housing (12) adjacent to each other are provided with circular flared edges (13), and a power connector (14) is provided on one side of the bottom motor housing (12), characterized in that: A main shaft (15) is provided on the top of the top motor housing (11). A negative pressure cover (2) is provided on the surface of the main shaft (15). The negative pressure cover (2) is sleeved on the outer surface of the top motor housing (11). A bend (23) is formed on the bottom side of the negative pressure cover (2) facing the side of the top motor housing (11). A negative pressure cavity (24) is formed between the interior of the negative pressure cover (2) and the top motor housing (11). A plurality of side washers (25) are provided on the outer ring of the top motor housing (11). The side gasket (25) is set with the side being smaller at the top and larger at the bottom. The side gasket (25) and the side of the negative pressure chamber (24) form an air intake channel (26). The top of the top motor housing (11) is provided with an auxiliary air outlet structure (3) around the main shaft (15). The auxiliary air outlet structure (3) is located inside the negative pressure cover (2). The outer rings of the top motor housing (11) and the bottom motor housing (12) are provided with multiple vertically penetrating heat dissipation holes (18). The top of the heat dissipation holes (18) communicates with the negative pressure chamber (24).

2. The high-stability motor for a heater according to claim 1, characterized in that: The middle section of the main shaft (15) is laterally inserted with a limiting shaft (16), and the negative pressure cover (2) is located below the limiting shaft (16).

3. The high-stability motor for a heater according to claim 1, characterized in that: The auxiliary air outlet structure (3) includes a main gear (31), an auxiliary shaft (32), an auxiliary gear (34), and a fan blade (33). The main gear (31) is sleeved on the surface of the main shaft (15). Multiple auxiliary shafts (32) are arranged on the top of the top motor housing (11) and are arranged around the main shaft (15). The auxiliary gear (34) is sleeved on the surface of the auxiliary shaft (32). The auxiliary gear (34) and the main gear (31) mesh with each other. The fan blade (33) is sleeved on the top surface of the auxiliary shaft (32).

4. The high-stability motor for a heater according to claim 1, characterized in that: Multiple baffles (17) are provided on the side of the top motor housing (11), and the bottom of the negative pressure cover (2) is in contact with the baffles (17).

5. The high-stability motor for a heater according to claim 1, characterized in that: The top outer ring of the negative pressure cover (2) is provided with a plurality of first exhaust holes (21), and the top inner ring of the negative pressure cover (2) is provided with a plurality of second exhaust holes (22).

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