Heat dissipation shell structure and water pump

Abstract

The utility model belongs to the technical field of water pumps, and particularly relates to a heat dissipation shell structure and a water pump, the heat dissipation shell structure comprises a motor shell used for being connected with a fluid shell in the water pump, and a driving motor is arranged in the motor shell; the heat dissipation shell is arranged outside the motor shell in a covering manner; a first mounting cavity and a second mounting cavity which are communicated with each other are formed in the heat dissipation shell, a heat dissipation fan driven by the driving motor is arranged in the first mounting cavity, and a controller used for controlling the driving motor to work is arranged in the second mounting cavity; the cooling fan is used for cooling the driving motor and the controller located in the cooling shell. According to the utility model, the heat dissipation fan can dissipate heat for the driving motor in the motor shell through the heat dissipation holes in the motor shell, and meanwhile, the heat dissipation fan can dissipate heat for the controller in the second mounting cavity through the first mounting cavity and the second mounting cavity which are connected with each other.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps, in particular to a heat dissipation shell structure and a water pump. Background Art

[0002] Chinese utility model 201420481503.0 discloses a high-speed multi-stage centrifugal water pump, the motor of which adopts a DC brushless permanent magnet high-speed synchronous motor and a pump controller with a DC synchronous frequency conversion technology matched with the pump, so that a single-stage or multi-stage centrifugal pump can operate at a certain high speed range according to a set program.

[0003] However, DC motors all require circuit boards for automatic operation, and most of the circuit boards are installed close to the motors. The heat generated by the DC motors during operation will heat up the circuit boards, thus affecting their normal operation. How to enhance the heat dissipation of the circuit boards is an issue that needs to be addressed urgently. Summary of the invention

[0004] The utility model aims to provide a heat dissipation shell structure and a water pump which can effectively increase the heat dissipation effect of a circuit board.

[0005] The purpose of the utility model is achieved in this way:

[0006] A heat dissipation housing structure, comprising:

[0007] a motor housing, used for connecting to a fluid housing in a water pump, wherein a driving motor is arranged in the motor housing; and

[0008] A heat dissipation shell, whose cover is arranged outside the motor shell; a first installation cavity and a second installation cavity that are connected to each other are formed in the heat dissipation shell, a heat dissipation fan driven by the drive motor is arranged in the first installation cavity, and a controller for controlling the operation of the drive motor is arranged in the second installation cavity, and the heat dissipation fan is used to dissipate heat for the drive motor and the controller located in the heat dissipation shell.

[0009] Furthermore, the heat dissipation housing comprises:

[0010] a first cover, the drive motor is provided with a drive main shaft connected to the cooling fan, the first cover is arranged outside the motor housing and located in the axial direction of the drive main shaft; and

[0011] a second cover body connected to the first cover body, the second cover body being arranged outside the motor housing and located in the radial direction of the driving spindle;

[0012] The first cover body and the second cover body are respectively formed with the first installation cavity and the second installation cavity.

[0013] Furthermore, the first cover body and the second cover body are connected to a support frame which suspends them outside the motor housing, and a heat dissipation gap is formed between the first cover body and the second cover body and the motor housing.

[0014] Furthermore, the support frame includes connecting columns arranged on both sides of the motor housing, the second cover body is arranged outside the motor housing, and the second cover body is provided with connecting holes corresponding to the connecting columns.

[0015] Furthermore, the support frame includes a socket arranged on the top of the motor housing, and the first cover body is provided with a pin opposite to the socket.

[0016] Furthermore, the first cover body includes a mounting frame connected to the second cover body, and the controller is mounted on the mounting frame; the first cover body also includes a sealing cover fixed on the mounting frame.

[0017] Furthermore, an opening is provided in the mounting frame, and the controller includes a circuit board, on which a heat sink passing through the opening is provided.

[0018] Furthermore, the sealing cover is provided with an operation panel, and the operation panel is provided with a plurality of silicone pressing parts; the circuit board is provided with a plurality of key parts, and the silicone pressing parts are connected with pressing columns facing the key parts.

[0019] A water pump comprises a fluid pump housing, a chamber for fluid medium to pass through is arranged in the fluid pump housing, and the above-mentioned heat dissipation housing structure.

[0020] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0021] In this patent, the cooling fan will dissipate heat for the drive motor in the motor housing through the cooling holes on the motor housing. At the same time, the cooling fan will dissipate heat for the controller in the second mounting cavity through the connected first mounting cavity and second mounting cavity. Thus, the cooling fan can dissipate heat for the drive motor and the controller at the same time, so as to reduce the temperature of the controller during operation, thereby reducing damage to the controller and increasing the service life of the controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0024] Figure 3 It is an exploded diagram of the heat dissipation casing.

[0025] Figure 4 2 is a bottom schematic diagram of the first cover body.

[0026] The meaning of the symbols in the figure:

[0027] 1. Motor housing; 2. Driving motor; 21. Cooling fan; 22. Driving spindle; 23. Impeller;

[0028] 3. heat dissipation housing; 31. first mounting cavity; 32. second mounting cavity; 33. first cover; 34. second cover; 341. mounting frame; 342. sealing cover; 343. opening; 344. retaining edge; 35. supporting frame; 351. connecting column; 352. connecting hole; 353. socket; 354. latch; 36. heat dissipation gap;

[0029] 4. controller; 41. circuit board; 42. heat sink; 43. control chip;

[0030] 5. Operation panel; 51. Silicone pressing part; 52. Button part; 53. Pressing column;

[0031] 6. Fluid pump housing; 61. Chamber. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with specific embodiments:

[0033] A heat dissipation housing structure is used in a water pump, the water pump comprises a fluid pump housing 6, the fluid pump housing 6 is provided with a chamber 61 for fluid medium to pass through, an outlet is fixed on the upper side of the fluid pump housing 6, and the heat dissipation housing structure is fixed on the side of the fluid pump housing 6.

[0034] Combination Figure 1 , 2 As shown, the heat dissipation housing structure includes a motor housing 1 and a heat dissipation housing 3, wherein the motor housing is connected to one side of the fluid pump housing 6; a driving motor 2 is arranged in the motor housing 1, and the driving motor 2 drives a driving spindle 22, and both ends of the driving spindle 22 are connected to an impeller 23 located in the motor housing 1, and a heat dissipation fan 21 located in the heat dissipation housing 3. The heat dissipation housing 3 is arranged outside the motor housing 1, and a first installation cavity 31 and a second installation cavity 32 are formed in the heat dissipation housing 3. The first installation cavity 31 is provided with a heat dissipation fan 21 driven by the driving motor 2, and the second installation cavity 32 is provided with a controller 4 for controlling the operation of the driving motor 2, and the heat dissipation fan 21 is used to dissipate heat for the driving motor 2 and the controller 4 located in the heat dissipation housing 3.

[0035] The driving motor 2 in this patent is a DC motor, which is controlled by the controller 4. The controller 4 includes a circuit board 41, on which is provided a control chip 43 and a plurality of button parts 52 installed on the circuit board 41. The control chip 43 can be operated by pressing the button parts 52 to operate the DC motor.

[0036] like Figure 3 , 4 As shown, in this patent, the heat dissipation shell 3 is overall in an "L" shape, and its cover is arranged outside the motor housing 1, and it includes a first cover body 33 and a second cover body 34. The first cover body 33 is arranged outside the motor housing 1 and is located in the axial direction of the driving spindle 22; the second cover body 34 is connected to the first cover body 33, and the second cover body 34 is arranged outside the motor housing 1 and is located in the radial direction of the driving spindle 22. Specifically, the second cover body 34 is arranged above the motor housing 1, and one end of the second cover body 34 is connected to the first cover body 33 to form an "L"-shaped heat dissipation shell 3. At this time, the cooling fan 21 connected to the driving spindle 22 is located in the first installation cavity 31 of the first cover body 33, and the controller 4 is installed in the second installation cavity 32 of the second cover body 34. Since the first installation cavity 31 is connected to the second installation cavity 32, when the cooling fan 21 is working and rotating, the cooling fan 21 will dissipate the heat for the driving motor 2 in the motor housing 1 through the heat dissipation holes on the motor housing 1. At the same time, the cooling fan 21 will dissipate the heat for the controller 4 in the second installation cavity 32 through the connected first installation cavity 31 and second installation cavity 32. Therefore, the cooling fan 21 can dissipate the heat for the driving motor 2 while dissipating the heat for the controller 4, so as to reduce the temperature of the controller 4 during operation, thereby reducing the damage of the controller 4 and increasing the service life of the controller 4.

[0037] Furthermore, the first cover body 33 and the second cover body 34 are connected to a support frame 35 that suspends them outside the motor housing 1, and a heat dissipation gap 36 is formed between the first cover body 33 and the second cover body 34 and the motor housing 1. Figure 3As shown, the support frame 35 includes connecting columns 351 arranged on both sides of the motor housing 1, and the connecting columns 351 are integrally formed on the motor housing 1; the second cover body 34 is square in shape as a whole, and the two sides and the lower end of the second cover body 34 are provided with ribs 344, and the top is open and arranged to be connected with the first cover body 33; the ribs 344 on both sides of the second cover body 34 are provided with connecting holes 352 opposite to the connecting columns 351. During installation, the second cover body 34 is placed outside the motor housing 1, so that the connecting columns 351 are opposite to the connecting holes 352, and the two can be connected by providing a threaded hole in the connecting column 351 and configuring a threaded member, so that the second cover body 34 is suspended outside the motor housing 1.

[0038] Furthermore, the support frame 35 includes a socket 353 disposed on the top of the motor housing 1, and the first cover body 33 is provided with a pin 354 opposite to the socket 353. Figure 3 , 4 As shown, the socket 353 is integrally formed on the top of the motor housing 1, and the plug 354 is also integrally formed and arranged on the first cover 33 and adapted to the plug 354. In fact, a threaded hole structure connected to the second cover 34 is provided on one end of the first cover 33, and one end of the first cover 33 is first fixed on the top of the second cover 34 by setting screws, and the plug 354 is arranged on the other end of the first cover 33, which can be quickly plugged with the socket 353 on the motor housing 1 to achieve rapid positioning.

[0039] Furthermore, the first cover body 33 includes a mounting frame 341 connected to the second cover body 34, and the controller 4 is mounted on the mounting frame 341; the first cover body 33 also includes a sealing cover 342 fixed on the mounting frame 341. Figure 3 , 4 As shown, the edge of the mounting frame 341 is provided with a plurality of mounting posts, and the circuit board 41 in the controller 4 is supported on the mounting posts. The mounting posts are provided with threaded holes, and the circuit board 41 is fixed to the mounting frame 341 by arranging fasteners between the circuit board 41 and the mounting posts; the sealing cover 342 is connected to the mounting frame 341 by arranging fasteners on the edges of the sealing cover 342 and the mounting frame 341, and the controller 4 located on the mounting frame 341 is sealed by the sealing cover 342. Since the first cover body 33 and the second cover body 34 are suspended outside the motor housing 1 through different mounting frames 341, a heat dissipation gap 36 is formed on the edges of the first cover body 33 and the second cover body 34, and the heat dissipation gap 36 helps to discharge the hot air in the first cover body 33 and the second cover body 34, so as to better dissipate heat.

[0040] Furthermore, the mounting frame 341 is provided with an opening 343, and the controller 4 includes a circuit board 41, on which a heat sink 42 is provided that passes through the opening 343. Figure 3 , 4 As shown, the inner cavity of the sealing cover 342 and the inner cavity of the mounting frame 341 are connected through the opening portion 343 to form the second mounting cavity 32. The heat sink 42 is an aluminum block, which is mounted on the control chip 43 in the circuit board 41 to enhance the heat dissipation of the control chip 43. The heat sink 42 is placed externally to better blow air to the heat sink 42 through the cooling fan 21, thereby better dissipating heat.

[0041] Furthermore, the cover 342 is provided with an operation panel 5, and the operation panel 5 is provided with a plurality of silicone pressing parts 51; the circuit board 41 is provided with a plurality of key parts 52, and the silicone pressing parts 51 are connected with pressing posts 53 facing the key parts 52. Figure 3 As shown, the button portion 52 is a silicone pad, on which a plurality of convex portions are integrally formed, and a slot is provided below the convex portion, through which the pressing column 53 is connected. The pressing column 53 is used to face the button portion 52 on the circuit board 41, and the button portion 52 can be pressed to press the pressing column 53 downward on the button portion 52, so as to operate the button portion 52 on the circuit board 41 to control the drive motor 2.

[0042] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat dissipation housing structure, characterized in that: include: A motor housing (1) is used to connect to a fluid housing in a water pump, wherein a drive motor (2) is arranged in the motor housing (1); as well as A heat dissipation housing (3) is provided outside the motor housing (1); a first installation cavity (31) and a second installation cavity (32) are formed in the heat dissipation housing (3); a heat dissipation fan (21) driven by the drive motor (2) is provided in the first installation cavity (31); a controller (4) for controlling the operation of the drive motor (2) is provided in the second installation cavity (32); the heat dissipation fan (21) is used to dissipate heat for the drive motor (2) and the controller (4) located in the heat dissipation housing (3).

2. A heat dissipation housing structure according to claim 1, characterized in that: The heat dissipation housing (3) comprises: a first cover (33), the drive motor (2) being provided with a drive main shaft (22) connected to the cooling fan (21), the first cover (33) being arranged outside the motor housing (1) and located in the axial direction of the drive main shaft (22); and A second cover body (34) connected to the first cover body (33), the second cover body (34) being arranged outside the motor housing (1) and located in the radial direction of the driving main shaft (22); The first cover body (33) and the second cover body (34) are respectively formed with the first installation cavity (31) and the second installation cavity (32).

3. A heat dissipation housing structure according to claim 2, characterized in that: The first cover body (33) and the second cover body (34) are connected to a support frame (35) which suspends them outside the motor housing (1), and a heat dissipation gap (36) is formed between the first cover body (33) and the second cover body (34) and the motor housing (1).

4. A heat dissipation housing structure according to claim 3, characterized in that: The support frame (35) comprises connecting columns (351) arranged on both sides of the motor housing (1); the second cover body (34) is arranged outside the motor housing (1); and the second cover body (34) is provided with connecting holes (352) corresponding to the connecting columns (351).

5. The heat dissipation housing structure according to claim 3, characterized in that: The support frame (35) comprises a socket (353) arranged on the top of the motor housing (1), and the first cover body (33) is provided with a latch (354) opposite to the socket (353).

6. A heat dissipation housing structure according to claim 2, characterized in that: The first cover body (33) comprises a mounting frame (341) connected to the second cover body (34), and the controller (4) is mounted on the mounting frame (341); the first cover body (33) also comprises a sealing cover (342) fixed on the mounting frame (341).

7. A heat dissipation housing structure according to claim 6, characterized in that: An opening (343) is provided in the mounting frame (341), and the controller (4) comprises a circuit board (41), and a heat sink (42) in the opening (343) is provided on the circuit board (41).

8. A heat dissipation housing structure according to claim 7, characterized in that: The sealing cover (342) is provided with an operation panel (5), and the operation panel (5) is provided with a plurality of silicone pressing parts (51); the circuit board (41) is provided with a plurality of key parts (52), and the silicone pressing parts (51) are connected with pressing columns (53) facing the key parts (52).

9. A water pump, characterized in that: The invention comprises a fluid pump housing (6), wherein a chamber for fluid medium to pass through is arranged in the fluid pump housing (6), and a heat dissipation housing structure as claimed in any one of claims 1 to 8.

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