Air blower assembly
By setting up cavity, heat dissipation fins and ventilation grid plates in the motor controller, the blower airflow takes away heat, solving the problem of poor heat dissipation of the motor controller and achieving a more efficient heat dissipation effect.
Patent Information
- Application Number
- CN202422364552.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The motor controller in the existing blower components has poor heat dissipation effect, mainly relying on the heat dissipation fins, and cannot effectively dissipate heat.
Set a cavity in the housing of the motor controller, install the control circuit board and IGBT module, and heat dissipation fins are installed on the side wall and bottom surface of the housing, and use the high-speed airflow at the volute air inlet to carry away heat, and combine the ventilation grid and the heat dissipation tank to improve heat dissipation efficiency.
By improving the structure and installation position of the motor controller, and using the airflow of the blower to dissipate heat, the heat dissipation efficiency of the motor controller is significantly improved and normal operation is ensured.
Smart Images
Figure CN223152322U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a blower assembly, in particular to a blower assembly with a motor controller. Background Art
[0002] The existing blower assembly includes a motor and a blower. The blower includes a volute with an air inlet and an air outlet, and an impeller installed in the inner cavity of the volute. The motor is installed outside the volute, and the rotating shaft of the motor body extends into the inner cavity to be connected with the impeller. An motor controller is also installed outside the volute. The motor controller includes a housing and a control circuit board installed in the housing. The outer surface of the housing is provided with a plurality of heat dissipation fins. The control circuit board in the motor controller is electrically connected to the motor body and controls the operation of the motor body. For the blower assembly with such a structure, the power components inside the motor controller generate a large amount of heat, and only the heat dissipation fins are used for heat dissipation, so the heat dissipation effect is not good enough and needs to be improved. Content of the Utility Model
[0003] The utility model provides a blower assembly to solve the technical problem that the power components inside the motor controller of the existing blower assembly generate a large amount of heat, and only the heat dissipation fins are used for heat dissipation, so the heat dissipation effect is not good enough.
[0004] The technical solution of the utility model is realized as follows:
[0005] The purpose of the utility model is to provide a blower assembly, including a motor and a blower. The blower includes a volute with an air inlet and an air outlet, and an impeller installed in the volute. The motor includes a motor body and a motor controller. The motor body is installed outside the volute, and the rotating shaft of the motor body extends into the volute to be connected with the impeller. The motor controller is installed on the volute. The motor controller is electrically connected to the motor body and controls the operation of the motor body. Its characteristics are as follows: the motor controller includes a housing, a cavity is arranged inside the housing, a control circuit board is installed in the cavity, a plurality of IGBT modules are installed on the control circuit board, a plurality of heat dissipation fins protrude from the side wall and the bottom surface of the housing, a heat dissipation plate protrudes from the side wall of the housing into the cavity, the heat dissipation surface of the IGBT module is attached to the heat dissipation plate, the heat dissipation plate is close to the air inlet of the volute, and the heat dissipation fins behind the heat dissipation plate extend into the air inlet.
[0006] A plurality of heat dissipation slots are arranged above the heat dissipation plate on the housing, and the heat dissipation slots are arranged between the heat dissipation fins behind the heat dissipation plate.
[0007] Or a plurality of heat dissipation slots are arranged between the heat dissipation fins on the housing.
[0008] An installation plate is arranged at the air outlet of the volute. A plurality of installation feet protrude from the side wall of the housing. The installation feet are connected to the installation plate by screws. The motor controller is installed on the volute through the installation feet.
[0009] The above-mentioned motor controller further includes a ventilation grille plate, which is provided with ventilation grilles. The ventilation grille plate is installed at the opening of the cavity of the housing, and the ventilation grille plate is communicated with the heat dissipation groove through the cavity.
[0010] The ventilation grille plate of the above-mentioned motor controller faces the side of the volute, and there is a ventilation channel between the motor controller and the volute.
[0011] The motor housing of the above-mentioned motor body is provided with a number of heat dissipation ribs.
[0012] Compared with the prior art, the present utility model has the following advantages:
[0013] 1. The blower assembly includes a motor and a blower. The blower includes a volute provided with an air inlet and an air outlet, and a wind wheel installed in the volute. The motor includes a motor body and a motor controller. The motor body is installed outside the volute, and the rotating shaft of the motor body extends into the volute to be connected with the wind wheel. The motor controller is installed on the volute, and the motor controller is electrically connected to the motor body and controls the operation of the motor body. It is characterized in that: the motor controller includes a housing, there is a cavity inside the housing, a control circuit board is installed in the cavity, a number of IGBT modules are installed on the control circuit board, a number of heat dissipation fins protrude from the side wall and the bottom surface of the housing, a heat dissipation plate protrudes from the side wall of the housing into the cavity, the heat dissipation surface of the IGBT module is attached to the heat dissipation plate, the heat dissipation plate is close to the air inlet of the volute, and the heat dissipation fins behind the heat dissipation plate extend into the air inlet. The high-speed inlet air flow of the blower is effectively utilized to quickly take away the heat of the heat dissipation fins, improving the heat dissipation efficiency of the motor controller and ensuring the normal operation of the motor controller.
[0014] 2. Other advantages of the present utility model are described in detail in the embodiment part. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the blower assembly provided in Embodiment 1 of the present utility model;
[0016] Figure 2 is the front view of the blower assembly provided in Embodiment 1;
[0017] Figure 3 is Figure 2 the A-A cross-sectional view of
[0018] Figure 4 is Figure 3 the enlarged view at B of
[0019] Figure 5 is the exploded view of the motor controller in the blower assembly provided in Embodiment 1;
[0020] Figure 6 Schematic diagram of the structure of the housing of the motor controller in the blower assembly provided for the second embodiment. Detailed implementation mode
[0021] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0022] Embodiment 1:
[0023] As Figures 1 to 5 shown, the blower assembly provided in this embodiment is a kind of blower assembly, including a motor and a blower. The blower includes a volute 2 provided with an air inlet 21 and an air outlet 22, and an impeller 23 installed in the volute 2. The motor includes a motor body 3 and a motor controller 1. The motor body 3 is installed outside the volute 2, and the rotating shaft 31 of the motor body 3 extends into the volute 2 and is connected to the impeller 23. The motor controller 1 is installed on the volute 2, and the motor controller 1 is electrically connected to the motor body 3 and controls the operation of the motor body 3. Its characteristics are as follows: the motor controller 1 includes a housing 11, a cavity 10 is provided inside the housing 11, a control circuit board 12 is installed in the cavity 10, a plurality of IGBT modules 121 are installed on the control circuit board 12, a plurality of heat dissipation fins 111 protrude from the side wall and the bottom surface of the housing 11, a heat dissipation plate 112 protrudes from the side wall of the housing 11 into the cavity 10, the heat dissipation surface of the IGBT module 121 is attached to the heat dissipation plate 112, the heat dissipation plate 112 is close to the air inlet 21 of the volute 2, and the heat dissipation fins 111 behind the heat dissipation plate 112 extend into the air inlet 21.
[0024] For the blower assembly, by extending the heat dissipation fins 111 behind the heat dissipation plate 112 into the air inlet 21, the high-speed inlet air flow of the blower is effectively utilized to quickly take away the heat of the IGBT module 121, improving the heat dissipation effect of the motor controller 1.
[0025] In the above-mentioned housing 11, a plurality of heat dissipation grooves 113 are opened above the heat dissipation plate 112, and the heat dissipation grooves 113 are arranged between the heat dissipation fins 111 behind the heat dissipation plate 112. A wind channel is formed between the heat dissipation grooves 113 and the heat dissipation fins 111, further improving the heat dissipation effect.
[0026] The above-mentioned volute 2 is provided with a mounting plate 24 at the air outlet 22. A plurality of mounting feet 114 protrude from the side wall of the outer shell 11. The mounting feet 114 and the mounting plate 24 are connected by screws. The motor controller 1 is mounted on the volute 2 through the mounting feet 114. The installation of the motor controller 1 is convenient.
[0027] The above-mentioned motor controller 1 further includes a ventilation grille plate 13. The ventilation grille plate 13 is provided with ventilation grilles 131. The ventilation grille plate 13 is mounted at the opening of the cavity 10 of the outer shell 11. The ventilation grille plate 13 communicates with the heat dissipation groove 113 through the cavity 10, making the heat inside the cavity 10 flow out more easily and accelerating heat dissipation. At the same time, the motor controller 1 can be reversely buckled or positively buckled on the volute 2 without affecting the heat dissipation effect.
[0028] On the side of the ventilation grille plate 13 of the above-mentioned motor controller 1 facing the volute 2, there is a ventilation channel 14 between the motor controller 1 and the volute 2, and the air flow is smooth.
[0029] The motor housing of the above-mentioned motor body 3 is provided with a plurality of heat dissipation ribs 32. The heat dissipation ribs 32 can accelerate the heat dissipation of the motor body 3.
[0030] In the blower assembly described in this embodiment, by improving the structure and installation position of the motor controller 1 and using the air flow of the blower 2 itself for heat dissipation, the heat dissipation effect of the motor controller 1 is greatly improved.
[0031] Embodiment 2:
[0032] As Figure 6 shown, this embodiment provides a blower assembly, which is similar to the blower assembly described in Embodiment 1. The difference is that:
[0033] The outer shell 11 is provided with heat dissipation grooves 113 between the heat dissipation fins 111. The heat dissipation grooves 113 are distributed on the side of the entire outer shell 11, and the heat dissipation effect is better.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A blower assembly, comprising a motor and a blower. The blower includes a volute (2) provided with an air inlet (21) and an air outlet (22), and an impeller (23) installed in the volute (2). The motor includes a motor body (3) and a motor controller (1). The motor body (3) is installed outside the volute (2), and a rotating shaft (31) of the motor body (3) extends into the volute (2) to be connected to the impeller (23). The motor controller (1) is installed on the volute (2), and the motor controller (1) is electrically connected to the motor body (3) and controls the operation of the motor body (3). It is characterized in that: The motor controller (1) includes a housing (11). A cavity (10) is provided inside the housing (11). A control circuit board (12) is installed in the cavity (10). A number of IGBT modules (121) are installed on the control circuit board (12). A number of heat dissipation fins (111) protrude from the side wall and the bottom surface of the housing (11). A heat dissipation plate (112) protrudes from the side wall of the housing (11) into the cavity (10). The heat dissipation surface of the IGBT module (121) is attached to the heat dissipation plate (112). The heat dissipation plate (112) is close to the air inlet (21) of the volute (2). The heat dissipation fins (111) behind the heat dissipation plate (112) extend into the air inlet (21).
2. The blower assembly according to claim 1, wherein: The housing (11) is provided with a number of heat dissipation grooves (113) above the heat dissipation plate (112). The heat dissipation grooves (113) are arranged between the heat dissipation fins (111) behind the heat dissipation plate (112).
3. A blower assembly according to claim 1, wherein: The housing (11) is provided with heat dissipation grooves (113) between the heat dissipation fins (111).
4. A blower assembly according to claim 2 or 3, characterized in that: The volute (2) is provided with a mounting plate (24) at the air outlet (22). A number of mounting feet (114) protrude from the side wall of the housing (11). The mounting feet (114) and the mounting plate (24) are connected by screws. The motor controller (1) is mounted on the volute (2) through the mounting feet (114).
5. A blower assembly according to claim 4, characterized in that: The motor controller (1) further includes a ventilation grille plate (13). The ventilation grille plate (13) is provided with ventilation grilles (131). The ventilation grille plate (13) is installed at the opening of the cavity (10) of the housing (11). The ventilation grille plate (13) communicates with the heat dissipation grooves (113) through the cavity (10).
6. The blower assembly according to claim 5, characterized in that: The ventilation grille plate (13) of the motor controller (1) faces the side of the volute (2). A ventilation channel (14) is provided between the motor controller (1) and the volute (2).
7. The blower assembly according to claim 6, characterized in that: The motor housing of the motor body (3) is provided with a number of heat dissipation ribs (32).