Heat preservation and insulation fan

Abstract

The utility model discloses a heat preservation and insulation fan, which relates to the field of air blowers, and comprises an outer case, an inner case, a case cover, a driving motor, a volute, an air inlet pipe and an air outlet pipe, a first heat insulation filler is arranged between the inner case and the outer case, and the case cover comprises a cover plate and a sealing cover part; one end of the sealing cover part is fixedly arranged at the center position, close to the surface of the inner case, of the cover plate, one end of the air inlet pipe is arranged on the outer wall of the inner case, the other end of the air inlet pipe penetrates through the outer case, and the two ends of the volute are fixedly connected with the driving motor and the sealing cover part correspondingly; a gap between every two adjacent heat dissipation structures forms a heat dissipation channel, and the extending direction of each heat dissipation channel is parallel to the axis of the air inlet pipe. The heat insulation filler is arranged between the inner case and the outer case, external airflow enters the inner case through the air inlet pipe, the airflow entering the inner case can be directly blown into the heat dissipation channel, the airflow finally collides with the air collision face of the volute, and heat dissipation of the motor is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of blowers, in particular to a heat-insulating blower. Background Art

[0002] Since the blower has a fan inside, and the traditional blower lacks thermal insulation, when the outside is in high-temperature air or low-temperature air, the heat of the external air will be transferred to the inside of the blower through the shell, causing the air temperature inside the blower to rise or fall, which cannot meet the purpose of constant temperature effect. In addition, the blower will generate huge noise and violent vibration when working. Therefore, it is urgent to develop a thermal insulation blower. Utility Model Content

[0003] The purpose of the utility model is to provide a heat-insulating fan to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a thermal insulation fan, comprising an outer case, an inner case, a case cover, a driving motor, a volute, an air inlet pipe and an air outlet pipe, the inner case is arranged inside the outer case, the volute and the driving motor are both arranged inside the inner case, a first thermal insulation filler is arranged between the inner case and the outer case, the case cover comprises a cover plate and a sealing portion, one end of the sealing portion is fixedly arranged at the center position of the surface of the cover plate close to the inner case, and the other end of the sealing portion is detachably arranged at the opening position of the inner case, one end of the air inlet pipe is arranged on the outer wall of the inner case, the other end of the air inlet pipe passes through the outer case, the air outlet pipe is arranged on the surface of the cover plate away from the inner case, the two ends of the volute are respectively fixedly connected to the driving motor and the sealing portion, the driving motor comprises a motor case, a plurality of heat dissipation structures are arranged on the surface of the motor case at intervals along the circumference of the motor case, the gaps between adjacent heat dissipation structures form a heat dissipation channel, and the extension direction of the heat dissipation channel is parallel to the axis of the air inlet pipe.

[0005] Preferably, the sealing cover portion includes a first box body and a second thermal insulation filler, one end of the first box body is fixedly connected to the cover plate, the other end of the first box body is fixedly connected to the volute, and the second thermal insulation filler is arranged inside the box body.

[0006] Preferably, the chassis cover further comprises a first pipe, two ends of which respectively penetrate the cover plate and the first box body, and the air inlet pipe is connected to the volute through the first pipe.

[0007] Preferably, it also includes a control box, which is electrically connected to the drive motor through a cable, and the control box is arranged on the surface of the cover plate away from the inner chassis. The chassis cover also includes a second pipe for the cable to pass through, and both ends of the second pipe respectively pass through the cover plate and the first box body.

[0008] Preferably, a wind impact surface is provided at one end of the volute, an air inlet is provided at the other end of the volute, and one end of the heat dissipation channel abuts against the wind impact surface.

[0009] Preferably, the heat dissipation structure is integrally formed on the outer wall of the motor housing, the motor housing is a heat dissipation metal shell, and the heat dissipation structure is a heat dissipation metal sheet.

[0010] Preferably, the heat dissipation structure is a rectangular flat plate or a wavy plate, and the length direction of the heat dissipation structure is parallel to the axis of the motor housing.

[0011] Preferably, the projection of the motor housing on the inner wall of the inner chassis intersects or is concentrically arranged with the air inlet duct.

[0012] Preferably, the inner chassis includes a box body and a second slot body, two ends of the second slot body are respectively fixedly connected to the box body and the outer chassis, the second slot body is provided with a second opening connecting the interior of the second slot body and the interior of the box body, the first box body is arranged in the second slot body, and the first box body and the second opening are interference fit.

[0013] Preferably, one end of the second slot body is provided with a folded edge which is interference fit with the outer chassis.

[0014] It also includes an impeller, which includes a base plate, a conical annular plate, long blades and short blades. The long blades and the short blades are evenly spaced around the center of the base plate, the long blades and the short blades are staggered, and the two ends of the long blades and the short blades are detachably arranged on the base plate and the conical annular plate respectively, and an air inlet hole is provided at the center of the conical annular plate.

[0015] The beneficial effects of the utility model are as follows: there is a heat-insulating filler between the inner case and the outer case, and the heat-insulating filler is used to insulate the inside of the blower, and the heat-insulating filler can isolate some noise, but the heat-insulating filler will cause the heat dissipation performance to decrease, so the heat-insulating blower is additionally designed with a heat-dissipating structure to avoid overheating of the motor. The external airflow enters the inner case through the air inlet pipe, and the airflow entering the inner case will be directly blown into the heat dissipation channel, and the airflow will eventually hit the wind-impacting surface of the volute, which is beneficial to the heat dissipation of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings further illustrate the present invention, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0017] Figure 1 A three-dimensional diagram provided for an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the structure provided for an embodiment of the utility model;

[0019] Figure 3A cross-sectional view provided for an embodiment of the utility model;

[0020] Figure 4 A schematic structural diagram of an impeller provided in one embodiment of the utility model.

[0021] Figure numerals: 1: outer chassis, 2: inner chassis, 4: driving motor, 5: volute, 6: air inlet pipe, 7: air outlet pipe, 8: first thermal insulation filler, 9: heat dissipation structure, 10: wind impact surface, 31: cover plate, 32: sealing part, 33: first pipeline, 321: second thermal insulation filler 321. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0023] It should be noted that in the present invention, when an element is referred to as being "fixed to" or "set on" another element, unless otherwise stated, it may be directly on the other element or there may be a central element at the same time. "Inside and outside" refer to inside and outside on a specific contour. "Far and near" refer to far and near relative to a certain component.

[0024] like Figure 1-Figure 3 As shown in, an embodiment of the utility model provides a heat-insulating fan, including an outer case 1, an inner case 2, a case cover, a drive motor 4, a volute 5, an air inlet pipe 6 and an air outlet pipe 7, wherein the inner case 2 is arranged inside the outer case 1, the volute 5 and the drive motor 4 are both arranged inside the inner case 2, a first heat-insulating filler 8 is arranged between the inner case 2 and the outer case 1, the case cover includes a cover plate 31 and a sealing portion 32, one end of the sealing portion 32 is fixedly arranged at the center position of the surface of the cover plate 31 close to the inner case 2, and the sealing portion 32 The other end is detachably arranged at the opening position of the inner chassis 2, one end of the air inlet pipe 6 is arranged on the outer wall of the inner chassis 2, the other end of the air inlet pipe 6 passes through the outer chassis 1, and the air outlet pipe 7 is arranged on the surface of the cover plate 31 away from the inner chassis 2. The two ends of the volute 5 are respectively fixedly connected to the drive motor 4 and the cover part 32. The drive motor 4 includes a motor shell, and a plurality of heat dissipation structures 9 are arranged on the surface of the motor shell at intervals along the circumference of the motor shell. The gaps between adjacent heat dissipation structures 9 form a heat dissipation channel, and the extension direction of the heat dissipation channel is parallel to the axis of the air inlet pipe 6.

[0025] The sealing cover 32 includes a first box body and a second heat-insulating filler 321 , wherein one end of the first box body is fixedly connected to the cover plate 31 , and the other end of the first box body is fixedly connected to the volute 5 , and the second heat-insulating filler 321 is disposed inside the box body.

[0026] The chassis cover further includes a first pipe 33 , two ends of which penetrate the cover plate 31 and the first box body respectively, and the air inlet pipe 6 is connected to the volute 5 through the first pipe 33 .

[0027] It also includes a control box, which is electrically connected to the drive motor 4 through a cable. The control box is arranged on the surface of the cover 31 away from the inner chassis 2. The chassis cover also includes a second pipe for the cable to pass through, and both ends of the second pipe pass through the cover 31 and the first box body respectively.

[0028] A wind impact surface 10 is provided at one end of the volute 5 , and an air inlet is provided at the other end of the volute 5 . One end of the heat dissipation channel abuts against the wind impact surface 10 .

[0029] The heat dissipation structure 9 is integrally formed and arranged on the outer wall of the motor housing. The motor housing is a heat dissipation metal shell, and the heat dissipation structure 9 is a heat dissipation metal sheet.

[0030] The heat dissipation structure 9 is a rectangular flat plate or a wavy plate, and the length direction of the heat dissipation structure 9 is parallel to the axis of the motor housing.

[0031] The projection of the motor housing on the inner wall of the inner case 2 intersects or is concentrically arranged with the air inlet pipe 6 .

[0032] The inner chassis 2 includes a box body and a second slot body, the two ends of the second slot body are respectively fixedly connected to the box body and the outer chassis 1, the second slot body is provided with a second opening connecting the interior of the second slot body and the interior of the box body, the first box body is arranged in the second slot body, and the first box body and the second opening are interference fit.

[0033] One end of the second slot body is provided with a folded edge which is interference fit with the outer chassis 1 .

[0034] It also includes an impeller, which includes a base plate, a conical annular plate, long blades and short blades. The long blades and the short blades are evenly spaced around the center of the base plate, the long blades and the short blades are staggered, and the two ends of the long blades and the short blades are detachably arranged on the base plate and the conical annular plate respectively, and an air inlet hole is provided at the center of the conical annular plate.

[0035] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, which should be considered as the scope of this specification.

Claims

1. A heat insulation fan, characterized in that: The invention comprises an outer case, an inner case, a case cover, a driving motor, a volute, an air inlet duct and an air outlet duct, the inner case being arranged inside the outer case, the volute and the driving motor being arranged inside the inner case, a first heat insulating filler being arranged between the inner case and the outer case, the case cover comprising a cover plate and a sealing portion, one end of the sealing portion being fixedly arranged at a central position of a surface of the cover plate close to the inner case, the other end of the sealing portion being detachably arranged at an opening position of the inner case, one end of the air inlet duct being arranged on an outer wall of the inner case, the other end of the air inlet duct penetrating the outer case, the air outlet duct being arranged on a surface of the cover plate away from the inner case, two ends of the volute being fixedly connected to the driving motor and the sealing portion respectively, the driving motor comprising a motor case, a plurality of heat dissipation structures being arranged on the surface of the motor case at intervals along the circumference of the motor case, the gaps between adjacent heat dissipation structures forming a heat dissipation channel, the extension direction of the heat dissipation channel being parallel to the axis of the air inlet duct.

2. The heat insulation fan according to claim 1, characterized in that: The sealing cover portion includes a first box body and a second heat-insulating filler, one end of the first box body is fixedly connected to the cover plate, the other end of the first box body is fixedly connected to the volute, and the second heat-insulating filler is arranged inside the box body.

3. The heat insulation fan according to claim 2, characterized in that: The chassis cover also includes a first pipe, two ends of which penetrate the cover plate and the first box body respectively, and the air inlet pipe is connected to the volute through the first pipe.

4. The heat insulation fan according to claim 2, characterized in that: It also includes a control box, which is electrically connected to the drive motor through a cable. The control box is arranged on the surface of the cover plate away from the inner chassis. The chassis cover also includes a second pipe for the cable to pass through, and both ends of the second pipe respectively pass through the cover plate and the first box body.

5. The heat insulation fan according to claim 1, characterized in that: A wind impact surface is provided at one end of the volute, an air inlet is provided at the other end of the volute, and one end of the heat dissipation channel abuts against the wind impact surface.

6. The heat insulation fan according to claim 1, characterized in that: The heat dissipation structure is integrally formed and arranged on the outer wall of the motor shell. The motor shell is a heat dissipation metal shell, and the heat dissipation structure is a heat dissipation metal sheet.

7. The heat insulation fan according to claim 3, characterized in that: The heat dissipation structure is a rectangular flat plate or a wavy plate, and the length direction of the heat dissipation structure is parallel to the axis of the motor housing.

8. The heat insulation fan according to claim 1, characterized in that: The projection of the motor housing on the inner wall of the inner case intersects or is concentrically arranged with the air inlet pipe.

9. The heat insulation fan according to claim 2, characterized in that: The inner chassis includes a box body and a second slot body, the two ends of the second slot body are respectively fixedly connected to the box body and the outer chassis, the second slot body is provided with a second opening connecting the interior of the second slot body and the interior of the box body, the first box body is arranged in the second slot body, the first box body and the second opening are interference fit, and one end of the second slot body is provided with a folded edge that is interference fit with the outer chassis.

10. The heat insulation fan according to claim 1, characterized in that: It also includes an impeller, which includes a base plate, a conical annular plate, long blades and short blades. The long blades and the short blades are evenly spaced around the center of the base plate, the long blades and the short blades are staggered, and the two ends of the long blades and the short blades are detachably arranged on the base plate and the conical annular plate respectively, and an air inlet hole is provided at the center of the conical annular plate.

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