A booster pump motor

Abstract

This utility model relates to a booster pump motor, including a housing, an upper cover, and a bottom cover. A rotating shaft is inserted through the housing, upper cover, and bottom cover. A rotor is located in the center of the housing, and a magnet is installed outside the rotor. A control board is located at the upper end of the bottom cover. A commutator is located in the center of the control board and is axially connected to the rotating shaft. A positive brush group and a negative brush group are provided at the upper end of the control board corresponding to the outer edge of the commutator. A wire connected to the control board passes through the bottom cover. By placing the control board between the brushes and the commutator, and by setting the four brushes into two groups of positive and negative poles, and connecting the wires of the two groups of brushes to the center line area of ​​the control board, the whole machine can be stabilized, thereby improving the motor efficiency.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a booster pump motor. Background Technology

[0002] A booster pump is a pump installed in pipelines to increase water pressure. Its main applications include boosting water pressure in water heaters, addressing low water pressure in high-rise buildings, pressurizing saunas and showers, increasing water pressure on the top floor of apartments, automatic boosting for solar water heaters, and boosting pressure in reverse osmosis water purifiers, among others. Booster pumps are generally driven by an electric motor.

[0003] The booster pump motor is a permanent magnet DC motor, which consists of stator poles, rotor, brushes, and housing. The stator poles use permanent magnets, such as ferrite, AlNiCo, and NdFeB. Currently, a four-pole motor is formed by setting two pairs of poles on the permanent magnet DC motor. Most existing four-pole motors have four brushes. Since the four brushes are directly connected to the power lines, and the power lines are offset from the rotor center, it is easy to cause the motor to be unstable, thus affecting the motor efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a booster pump motor, which can stabilize the whole machine and improve motor efficiency by setting a control board between the brushes and the commutator, and by setting the four brushes into two groups of positive and negative poles, and connecting the wires of the two groups of brushes to the center line area of ​​the control board.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a booster pump motor, comprising a housing, an upper cover, and a bottom cover, wherein a rotating shaft is disposed between the housing, the upper cover, and the bottom cover; a rotor is disposed in the middle of the housing; a magnet is disposed outside the rotor; a control board is disposed at the upper end of the bottom cover; a commutator is disposed in the middle of the control board and is axially connected to the rotating shaft; a positive brush group and a negative brush group are disposed at the upper end of the control board corresponding to the outer edge of the commutator; and a wire connected to the control board is disposed through the bottom cover.

[0006] Preferably, the control board includes an electronic control board, both the upper and lower layers of which are provided with copper foil sheets. The electronic control board is provided with brush connection positions to facilitate the installation of the positive brush group and the negative brush group. A positive wire connection hole is formed between the electronic control board and one of the copper foil sheets to facilitate the connection of the positive wire. A negative wire connection hole is formed between the electronic control board and the other copper foil sheet to facilitate the connection of the negative wire. A positive line is formed between the positive wire connection hole and the positive brush group, and a negative line is formed between the negative wire connection hole and the negative brush group.

[0007] More preferably, the rotor includes a plurality of inclined rotor segments, the commutator is composed of a plurality of commutator segments, and the center point of the inclination angle of the rotor segments is corresponding to the center line of the commutator segment pin.

[0008] More preferably, the positive brush group and the negative brush group each include two positive brushes and two negative brushes, and the four brushes are evenly distributed and connected to the outer wall of the commutator, with the two positive brushes and the two negative brushes arranged opposite to each other.

[0009] More preferably, both the positive and negative brushes include a housing, a brush holder, and a brush box, with a spring provided between the brush holder and the brush box.

[0010] More preferably, the outer wall of the inclined rotor blades is provided with four magnets.

[0011] The beneficial effects of this utility model are as follows: It includes a shell, a top cover, and a bottom cover. A rotating shaft is inserted between the shell, the top cover, and the bottom cover. A rotor is located in the center of the shell, and a magnet is located outside the rotor. A control board is located at the upper end of the bottom cover. A commutator is located in the center of the control board and is axially connected to the rotating shaft. A positive brush group and a negative brush group are provided at the upper end of the control board corresponding to the outer edge of the commutator. A wire connected to the control board is inserted through the bottom cover. By placing the control board between the brushes and the commutator, and by setting the four brushes into two groups of positive and negative poles, and connecting the wires of the two groups of brushes to the center line area of ​​the control board, the whole machine can be stabilized, thereby improving the motor efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the present invention, showing the angle between the tilted rotor blades and the commutator pins.

[0014] Figure 3 This is a schematic diagram of the control board of this utility model.

[0015] Figure 4 This is a schematic diagram of the other side of the control board of this utility model. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] like Figure 1-4As shown, a booster pump motor includes a housing 1, an upper cover 2, and a bottom cover 3. A rotating shaft 4 is inserted through the housing 1, the upper cover 2, and the bottom cover 3. A rotor 5 is located in the center of the housing 1, and a magnet 6 is located outside the rotor 5. A control plate 7 is located at the upper end of the bottom cover 3. A commutator 8, which is axially connected to the rotating shaft 4, is located in the center of the control plate 7. A positive brush group and a negative brush group are provided on the upper end of the control plate 7 corresponding to the outer edge of the commutator 8. A wire 9 connected to the control plate 7 is inserted through the bottom cover 3. By placing the control plate 7 between the brushes and the commutator 8, and by setting the four brushes into two groups of positive and negative poles, and connecting the wires 9 of the two groups of brushes to the center line area of ​​the control plate 7, the whole machine can be stabilized, thereby improving the motor efficiency.

[0018] In this embodiment, the control board 7 includes an electrical control board 71. Both the upper and lower layers of the electrical control board 71 are provided with copper foil sheets 72. The electrical control board 71 has brush connection positions 73 for easy installation of the positive and negative brush groups. A positive wire connection hole 74 is formed between the electrical control board 71 and one of the copper foil sheets 72 to facilitate the connection of the positive wire 9. A negative wire connection hole 75 is formed between the electrical control board 71 and the other copper foil sheet 72 to facilitate the connection of the negative wire 9. A positive line 76 is formed between the positive wire connection hole 74 and the positive brush group, and a negative line 77 is formed between the negative wire connection hole 75 and the negative brush group. Both the positive line 76 and the negative line 77 are located on the control board 7 at the center line position corresponding to the commutator 8. This ensures stable coordination between the rotor 5, windings, and brushes and the commutator 8 during rotation, effectively improving motor speed and output power.

[0019] In this embodiment, the rotor 5 includes a plurality of inclined rotor segments 51, and the outer wall of the inclined rotor segments 51 is provided with four magnets 6. The commutator 8 is composed of a plurality of commutator segments. The center point of the inclination angle of the rotor segments 51 is set to correspond to the center line of the commutator segment pin, so that the current magnitude of each commutator segment connected to the armature winding is stable when it passes through the brush.

[0020] In this embodiment, the positive brush group and the negative brush group each include two positive brushes 78 and two negative brushes 79. The four brushes are evenly distributed and connected to the outer wall of the commutator 8. The two positive brushes 78 and the two negative brushes 79 are respectively arranged opposite to each other on the corresponding brush connection positions 73 and are respectively connected to the positive line 76 and the negative line 77. This reasonably staggers the positive and negative poles to avoid mutual interference. The positive brushes 78 and the negative brushes 79 each include a housing 104, a brush holder 101 and a brush box 102. A spring 103 is provided between the brush holder 101 and the brush box 102, and the spring 103 causes the brush box 102 to abut against the commutator 8.

[0021] Based on the concept of this utility model, there may be changes in the specific implementation methods and application scope. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A booster pump motor, characterized in that: The device includes an outer shell, a top cover, and a bottom cover. A rotating shaft passes through the middle of the outer shell, the top cover, and the bottom cover. A rotor is located in the middle of the inner part of the outer shell, and a magnet is located outside the rotor. A control board is located at the upper end of the inner part of the bottom cover. A commutator is located in the middle of the control board and is axially connected to the rotating shaft. A positive brush group and a negative brush group are provided at the upper end of the control board corresponding to the outer edge of the commutator. A wire connected to the control board passes through the bottom cover.

2. The booster pump motor according to claim 1, characterized in that: The control board includes an electronic control board, with copper foil sheets on both its upper and lower layers. The electronic control board has brush connection positions for easy installation of the positive and negative brush groups. A positive wire connection hole is formed between the electronic control board and one of the copper foil sheets to facilitate the connection of the positive wire. A negative wire connection hole is formed between the electronic control board and the other copper foil sheet to facilitate the connection of the negative wire. A positive line is formed between the positive wire connection hole and the positive brush group, and a negative line is formed between the negative wire connection hole and the negative brush group.

3. A booster pump motor according to claim 1, characterized in that: The rotor includes several inclined rotor segments, and the commutator is composed of several commutator segments. The center point of the inclination angle of the rotor segments is set to correspond to the center line of the commutator segment pin.

4. A booster pump motor according to claim 2, characterized in that: The positive brush group and the negative brush group each include two positive brushes and two negative brushes. The four brushes are evenly distributed and connected to the outer wall of the commutator, and the two positive brushes and the two negative brushes are respectively arranged opposite to each other.

5. A booster pump motor according to claim 4, characterized in that: Both the positive and negative brushes include a housing, a brush holder, and a brush box, with a spring provided between the brush holder and the brush box.

6. A booster pump motor according to claim 3, characterized in that: The inclined rotor blades have four magnets on their outer wall.

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