Wiring structure of booster pump

Abstract

The utility model provides a wiring structure of a booster pump, and belongs to the technical field of pumps. The technical problems that a wiring terminal of an existing pump is complex in operation, troublesome to install and the like are solved. The wiring structure of the booster pump comprises a motor, a pump shell and a frequency converter, the motor comprises an integrally-formed motor shell and a stator wrapped in the motor shell, a rotor is arranged in the motor shell, an impeller is fixedly formed at the lower end of the rotor and located in the pump shell, the pump shell comprises a water inlet pipe and a water outlet pipe, and a pressure switch is fixedly arranged on the water outlet pipe; a first plug is arranged on the pressure switch, a second plug is arranged on the motor shell, a first socket and a second socket are arranged on the frequency converter, the first plug is fixedly connected with the first socket, and the second plug is fixedly connected with the second socket. According to the modularized power connection mode, the risk of wrong connection is reduced, and installation and maintenance are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pump, especially point to a kind of wiring structure of booster pump. BACKGROUND

[0002] Booster pump realizes the function of starting boiling water, stopping water automatically by pressure switch and frequency converter. Specifically, when user opens water tap, the pressure in pipeline drops, and pressure switch detects pressure change, triggering booster pump to start;At the same time, frequency converter automatically adjusts the speed of pump according to actual water consumption, to ensure stable water pressure. When user closes water tap, pipeline pressure rises, and pressure switch detects that pressure reaches set value, automatically stops booster pump operation, to achieve the effect of energy saving and prolonging equipment life.

[0003] The existing booster pump generally connects main power line to power input terminal of frequency converter;Then connect output terminal of frequency converter to corresponding terminal of booster pump motor, and then connect output signal line of pressure switch to control terminal of frequency converter. But the wiring terminal operation is complex, installation is troublesome, and there is even the risk of wiring error. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a wiring structure of booster pump. The utility model solves the technical problem of how to make the wiring of pump more convenient.

[0005] The utility model discloses a wiring structure of booster pump, including motor, pump shell and frequency converter, motor includes integrally formed motor shell and stator wrapped in motor shell, rotor is arranged in motor shell, impeller is fixedly formed in the lower end of rotor, impeller is located in pump shell, pump shell includes water inlet pipe and water outlet pipe, pressure switch is fixedly arranged on water outlet pipe, plug one is arranged on pressure switch, plug two is arranged on motor shell, socket one and socket two are arranged on frequency converter, plug one and socket one are fixedly connected, plug two and socket two are fixedly connected.

[0006] Further, the pressure switch includes a control box, a controller is arranged in the control box, a plug one is formed at one end of the control box, an electric sheet one is arranged in the plug one, and the electric sheet one is electrically connected with the controller.

[0007] Further, the stator is fixedly provided with a connecting piece around the periphery, the motor shell is formed with a connecting part, the connecting part wraps the connecting piece, the plug two is formed at one end of the connecting piece away from the stator, an electric sheet two is arranged in the plug two, and the electric sheet two is electrically connected with the stator.

[0008] Further, the frequency converter has a protruding fixing column, the fixing column abuts against the connecting part and is fixedly connected through a fixing piece.

[0009] Further, the control box protrudes a fixing block near one end of the plug one, and the fixing block abuts against the frequency converter.

[0010] Further, a sealing piece one is arranged between the plug one and the socket one, and a sealing piece two is arranged between the plug two and the socket two.

[0011] Compared with the prior art, the technical effect of the utility model is: one, the pressure switch and the frequency converter are connected through the plug one and the socket one, the motor and the frequency converter are connected through the plug two and the socket two, a modular power connection mode is formed, the risk of wrong connection is reduced, installation and maintenance are facilitated, the overall structure is compact, external pipelines and connecting components are reduced, and the failure rate is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the utility model explosion map.

[0013] Figure 2 is the utility model cutaway Figure 1 .

[0014] Figure 3 is the utility model cutaway Figure 2 .

[0015] Figure 4 is the utility model frequency converter perspective drawing.

[0016] Figure 5 is the utility model perspective drawing.

[0017] Figure number mark: 1, pump shell;101, water inlet pipe;102, water outlet pipe;2, frequency converter;201, socket one;202, socket two;203, fixed column;204, positioning block;3, motor shell;301, connecting part;4, stator;5, rotor;6, impeller;7, pressure switch;701, plug one;702, control box;703, controller;704, electric sheet one;705, fixing block;8, connecting piece;801, plug two;802, electric sheet two;9, sealing piece one;10, sealing piece two. DETAILED DESCRIPTION

[0018] The following is the specific embodiment of the utility model and is combined with the drawings, and the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.

[0019] It should be noted that the description of the directions such as "up", "down", "left", "right", "top", "bottom" and the like in the present application are defined based on the position or relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device must be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0020] According to Figures 1 to 5 As shown in the figure, a wiring structure of a booster pump, comprising a motor, a pump shell 1, a frequency converter 2 and a pressure switch 7. The motor comprises an integrally formed motor shell 3, the motor shell 3 comprises a connecting part 301 protruding outward along the radial direction, the motor further comprises a stator 4 and a rotor 5, the motor shell 3 wraps the stator 4 integrally, the rotor 5 is located in the motor shell 3, the impeller 6 is located in the pump shell 1, the rotor 5 and the impeller 6 are integrally formed. The pump shell 1 comprises a water inlet pipe 101 and a water outlet pipe 102, the water outlet pipe 102 is fixedly provided with the pressure switch 7, the pressure switch 7 is provided with a plug one 701, the motor shell 3 is provided with a plug two 801, the frequency converter 2 is provided with a socket one 201 and a socket two 202, the plug one 701 and the socket one 201 are fixedly connected, the plug two 801 and the socket two 202 are fixedly connected. The pressure switch 7 comprises a control box 702, the control box 702 is provided with a controller 703, one end of the control box 702 is formed with the plug one 701, the plug one 701 is provided with an electric sheet one 704, the electric sheet one 704 is electrically connected with the controller 703. A sealing piece one 9 is arranged between the plug one 701 and the socket one 201. The pressure switch 7 monitors the water pressure change of the water outlet pipe 102 in real time through the controller 703 in the control box 702. The electric sheet one 704 in the plug one 701 is electrically connected with the controller 703, and the pressure signal is transmitted to the frequency converter 2. The control box 702 protrudes a fixing block 705 close to one end of the plug one 701 and abuts against the frequency converter 2, the frequency converter 2 protrudes a positioning block 204, the fixing block 705 abuts against the outer side of the positioning block 204, ensuring the stable connection between the pressure switch 7 and the frequency converter 2, and preventing water vapor or dust from entering through the sealing piece one 9, improving the sealing performance.

[0021] A connector 8 is fixedly mounted on the outer periphery of the stator 4. A connecting part 301 is formed on the motor housing 3, which encloses the connector 8. A second plug 801 is formed on the end of the connector 8 away from the stator 4. An electrical contact 802 is disposed inside the second plug 801 and is electrically connected to the stator 4. The frequency converter 2 has a protruding fixing post 203, which abuts against the connecting part 301 and is fixedly connected by a fastener. A fixing block 705 protrudes from the end of the control box 702 near the first plug 701 and abuts against the frequency converter 2. A second seal 10 is provided between the second plug 801 and the second socket 202. Through the fixed connection between the second plug 801 and the second socket 202, the power supply and control signal transmission between the motor and the frequency converter 2 are realized. The frequency converter 2, based on the feedback signal from the pressure switch 7, controls the motor speed by adjusting the power frequency of the motor, thereby precisely adjusting the output pressure of the booster pump. A sealing element 2 10 is provided between plug 2 801 and socket 2 202 to prevent moisture or dust from entering the connection part 301, ensuring a stable and safe connection between the motor and the frequency converter 2. A connecting element 8 is fixedly installed on the outer periphery of the stator 4. The motor housing 3 has a formed connection part 301 that wraps around the connecting element 8; this integrated design enhances the stability and sealing of the motor structure. The motor housing 3 abuts against the fixing post 203 of the frequency converter 2 via the connecting part 301 and is fixedly connected by fasteners, ensuring a firm mechanical connection between the motor and the frequency converter 2 and reducing vibration and loosening. The pressure switch 7 and the frequency converter 2 are connected via plug 1 701 and socket 1 201, and the motor and the frequency converter 2 are connected via plug 2 801 and socket 2 202, forming a modular power connection method that reduces external pipelines and connecting parts 301, making the overall structure of the booster pump more compact and saving space.

[0022] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection defined by the claims of the present utility model.

Claims

1. A wiring structure for a booster pump, comprising a motor, a pump housing (1), and a frequency converter (2), characterized in that: The motor includes an integrally formed motor housing (3) and a stator (4) enclosed in the motor housing (3). A rotor (5) is provided inside the motor housing (3). An impeller (6) is fixedly formed at the lower end of the rotor (5). The impeller (6) is located inside the pump housing (1). The pump housing (1) includes an inlet pipe (101) and an outlet pipe (102). A pressure switch (7) is fixedly provided on the outlet pipe (102). A plug (701) is provided on the pressure switch (7). A plug (801) is provided on the motor housing (3). A socket (201) and a socket (202) are provided on the frequency converter (2). The plug (701) and socket (201) are fixedly connected. The plug (801) and socket (202) are fixedly connected.

2. The wiring structure of a booster pump according to claim 1, characterized in that: The pressure switch (7) includes a control box (702), a controller (703) is provided inside the control box (702), a plug (701) is formed at one end of the control box (702), an electric piece (704) is provided inside the plug (701), and the electric piece (704) is electrically connected to the controller (703).

3. The wiring structure of a booster pump according to claim 2, characterized in that: The stator (4) is fixedly provided with a connector (8) on its outer periphery. The motor housing (3) is formed with a connecting part (301). The connecting part (301) wraps the connector (8). The plug (801) is formed at the end of the connector (8) away from the stator (4). The plug (801) is provided with an electric sheet (802). The electric sheet (802) is electrically connected to the stator (4).

4. The wiring structure of a booster pump according to claim 3, characterized in that: The inverter (2) has a protruding fixing post (203), which abuts against the connecting part (301) and is fixedly connected by a fastener.

5. The wiring structure of a booster pump according to claim 4, characterized in that: The control box (702) has a fixing block (705) protruding from one end near the plug (701), and the fixing block (705) abuts against the frequency converter (2).

6. The wiring structure of a booster pump according to claim 1, characterized in that: A sealing element 1 (9) is provided between plug 1 (701) and socket 1 (201), and a sealing element 2 (10) is provided between plug 2 (801) and socket 2 (202).

Images