Water pump motor start controller box

Abstract

This utility model belongs to the technical field of motor controller equipment, and relates to a water pump motor starter controller box. This utility model includes a box body and a cover. The end of the box body has two parallel power cord interfaces, and the outer edge of each power cord interface has threads. This utility model replaces the screw connection structure on the cover by setting a snap-locking structure and locking element. The power cord is firmly fixed inside the box body's power cord interface through the interaction of the box body's power cord interface, a rubber-plastic seal, and a plastic nut, replacing the screw posts used to fix the power cord inside the box body. This eliminates the need for four screws and two studs, saving installation time and improving efficiency. It also reduces the space occupied by screws and studs, making the internal installation space of the controller box more spacious, facilitating the installation and wiring of internal components, and improving the utilization of internal space.

Description

Technical Field

[0001] This utility model belongs to the technical field of motor controller equipment, and relates to a water pump motor starter controller box. Background Technology

[0002] In the starting control of water pump motors, the controller box plays a crucial role. It houses and protects various electronic components of the controller and provides an interface for connecting to external devices. Traditional water pump motor starter controller boxes typically use a structure where the cover and body are connected by screws. This connection method requires a significant amount of time and effort during installation and disassembly. In particular, when installing internal components, workers need to tighten each screw individually, which is cumbersome and inefficient. Users also need to unscrew the screws connecting the cover and body, connect the power cable inside the box, and then retighten the screws, which is time-consuming and can easily damage the screw connection points, leading to loose connections. Furthermore, traditional controller boxes also have cable clamping posts inside, which not only increases the number of components but also occupies installation space, making the internal layout less efficient and further affecting the convenience of installing internal components. With the increasing demands for production efficiency and product performance, the traditional water pump motor starter controller box structure can no longer meet the needs of actual production and use. Therefore, there is an urgent need to design a water pump motor starter controller box that can overcome the above shortcomings.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a novel electronic timed water pump controller [Application No.: 201922200254.9], which includes a cover, a body, a terminal block fixing plate, a capacitor, and a control board. The cover and body are fixed with screws, and the cover and body are sealed with resin around their perimeter. The body has slots, and a motor connection port is fixed to one side of the terminal block fixing plate, which is installed inside the body. The control board has a reed switch and a microcontroller. The reed switch detects the water flow switch signal on the external motor and controls the motor rotation and water pump operation. The microcontroller controls the timing of the water pump motor's operation. However, this solution still requires screws and studs to connect and fix the body and cover, which consumes a lot of time and effort during installation and disassembly, and still occupies a certain amount of installation space in the body, making the internal space layout unreasonable and further affecting the convenience of workers installing internal components. Summary of the Invention

[0004] The purpose of this utility model is to address the above-mentioned problems by providing a water pump motor starter controller box.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A water pump motor starter controller box includes a box body and a cover. The box body has two parallel power cord interfaces at its ends. The outer edge of each power cord interface has threads, and the inner diameter of each interface gradually decreases from the outside in. A rubber-plastic seal is placed inside each power cord interface, and the inner diameter of the seal also gradually decreases from the outside in. The power cord passes through a threaded plastic nut, which is then tightened onto the power cord interface. Tightening secures the power cord in place through the interaction of the power cord interface, the rubber-plastic seal, and the plastic nut. The bottom of the box body has a threaded connection fastener. The cover has rotatable snap-fit ​​fastening structures at both ends. The box body has locking components at both ends that engage with the snap-fit ​​fastening structures. A motor switch connection is located on the side of the box body.

[0007] In the aforementioned water pump motor starter controller box, the buckle fixing structure includes connecting legs and a rotating shaft located at both ends of the box cover. The rotating shaft is installed and fixed inside the connecting legs. The rotating shaft is provided with a buckle plate integrally formed with the rotating shaft. When the buckle plate is flipped down, it can engage with the locking component.

[0008] In the aforementioned water pump motor starter controller box, a buckle groove is provided in the buckle plate, and the rotating shaft is rotatably engaged with the connecting support leg.

[0009] In the aforementioned water pump motor starter controller box, the locking component includes outward-folding plates disposed at both ends of the box body. The outward-folding plates are L-shaped, and the bottom of the outward-folding plates is provided with locking protrusions. When the outward-folding plates enter the locking groove, the locking protrusions engage with the bottom wall of the locking groove.

[0010] In the aforementioned water pump motor starter controller box, the threaded connection fastener includes four parallel threaded feet located at the bottom of the box, each threaded foot having a threaded hole.

[0011] In the aforementioned water pump motor starter controller box, the motor switch connection part includes a motor switch connection socket and a power indicator light connection socket located on the side of the box body.

[0012] In the aforementioned water pump motor starter controller box, a terminal block fixing seat is provided inside the box, and a terminal block positioning post is provided on the terminal block fixing seat.

[0013] In the aforementioned water pump motor starter controller box, the box body is also provided with two parallel capacitor positioning baffles and a capacitor positioning post, and the capacitor positioning post is provided with an anti-loosening fixing part.

[0014] In the aforementioned water pump motor starter controller box, the anti-loosening fixing part includes two baffles disposed on the capacitor positioning post. The two baffles are located on the side of the capacitor positioning post near the capacitor positioning baffle, and a sliding groove is formed between the baffles and the capacitor positioning post.

[0015] In the aforementioned water pump motor starter controller box, two capacitor positioning post base reinforcement parts are provided on the side of the capacitor positioning post away from the retaining edge, and the two capacitor positioning post base reinforcement parts and the terminal block fixing seat form an installation area.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This invention replaces the screw connection structure on the box cover with a snap-fit ​​fixing structure and locking components. The power cord is firmly fixed inside the box's power cord interface through the interaction of the box body's power cord interface, replacing the internal screw posts that fix the power cord. This eliminates the need for four screws and two studs, saving installation time and improving efficiency. It also reduces the space occupied by screws and studs, making the internal installation space of the controller box more spacious, facilitating the installation and wiring of internal components, and improving the utilization of internal space. Users no longer need to unscrew the screws connecting the box cover to the box body, nor do they need to unscrew the screw posts fixing the power cord. They only need to open the snap-fit, connect the power output wire to the terminal block, and lock the snap-fit ​​back in place, providing users with a simpler and more convenient option.

[0018] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a structural diagram of the box.

[0021] Figure 3 This is a structural diagram of the box from another direction.

[0022] Figure 4 This is a structural diagram of the box lid.

[0023] In the diagram: 1. Box body; 2. Box cover; 200. Power cord interface; 3. Threaded connection fastener; 4. Buckle fastening structure; 5. Locking element; 6. Motor switch connection part; 7. Rotating shaft; 8. Buckle plate; 9. Buckle groove; 10. Connecting support foot; 11. Outward-folding buckle plate; 12. Locking protrusion; 13. Threaded support foot; 14. Motor switch connection socket; 15. Power indicator light connection socket; 16. Terminal block mounting base; 17. Terminal block positioning post; 18. Capacitor positioning baffle; 19. Capacitor positioning post anti-loosening fixing part; 20. Edge; 21. Capacitor positioning post base reinforcement part; 22. Installation area; 23. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown, a water pump motor starter controller box includes a box body 1 and a box cover 2. The box body 1 has two parallel power cord interfaces 200 at its end. The outer edge of the power cord interface 200 has threads, and the inner diameter of the power cord interface 200 gradually decreases from the outside to the inside. A rubber and plastic seal is placed inside the power cord interface 200, and the inner diameter of the rubber and plastic seal gradually decreases from the outside to the inside. The power cord passes through a plastic nut with internal threads, and the plastic nut is tightened to the power cord interface 200. After tightening, the power cord is firmly fixed by the interaction of the power cord interface 200, the rubber and plastic seal, and the plastic nut. The bottom of the box body 1 has a threaded connection fixing part 3. The two ends of the box cover 2 have rotatable buckle fixing structures 4. The two ends of the box body 1 have locking parts 5 that engage with the buckle fixing structures 4. The side of the box body 1 has a motor switch connection part 6.

[0026] In this embodiment, the end of the housing 1 is provided with two parallel power cord interfaces 200. The outer edge of the power cord interface 200 has threads, which can be easily connected to an external power cord. This threaded connection method is stable and reliable. The inner diameter of the power cord interface 200 gradually decreases from the outside to the inside. A rubber and plastic seal needs to be placed inside the power cord interface. The inner diameter of the rubber and plastic seal gradually decreases from the outside to the inside. The power cord passes through a plastic nut with internal threads. The plastic nut is tightened to the power cord interface. After tightening, the power cord interface, the rubber and plastic seal, and the plastic nut interact to firmly fix the power cord and prevent it from loosening. This replaces the screw posts for fixing the cable inside the housing, eliminating the need for four screws and two screw posts for fixing the cable. This effectively ensures the stability of the power connection, prevents the power cord from falling off, and further improves the waterproof function. The bottom of the housing 1 is provided with a threaded connection fastener 3, which is used to fix the controller box in the required installation position to ensure its operation. During operation, there will be no displacement. The cover 2 has rotatable buckle fixing structures 4 at both ends, and the body 1 has locking parts 5 at both ends that engage with the buckle fixing structures 4. Through the cooperation of the buckle fixing structures 4 and the locking parts 5, the cover 2 and the body 1 can be quickly connected and disassembled without the need for screws. The operation is simple and replaces the screw connection structure on the cover, eliminating the need for four screws. Workers no longer need to perform tedious screw tightening operations, which greatly saves installation time and improves installation efficiency. At the same time, it reduces the space occupied by screws and studs, making the installation space inside the controller box more spacious. This makes it easier for workers to install and wire the internal components, improving the utilization rate of internal space. In addition, users no longer need to unscrew and screw back the screws connecting the cover and the body, nor do they need to unscrew the screws securing the power cord. They only need to open the buckle and directly connect the power output wire to the terminal block and lock the buckle back, providing users with a simpler and more convenient option.

[0027] The side of the housing 1 is provided with a motor switch connection part 6, which is used to connect a terminal block to control the motor switch.

[0028] Combination Figure 1-4 As shown, the buckle fixing structure 4 includes connecting legs 10 and rotating shaft 7 disposed at both ends of the box cover 2. The rotating shaft 7 is installed and fixed inside the connecting legs 10. The rotating shaft 7 is provided with a buckle plate 8 integrally formed with the rotating shaft 7. When the buckle plate 8 is flipped down, it can be engaged with the locking member 5.

[0029] Specifically, the rotating shaft 7 allows the buckle plate 8 to rotate flexibly, and the connecting leg 10 provides support and a base for the rotating shaft 7, ensuring the smooth rotation of the buckle plate 8. When it is necessary to close the box cover 2, the buckle plate 8 is flipped down, and the buckle plate 8 can engage with the locking piece 5, thereby firmly fixing the box cover 2 to the box body 1. This structure is simple and reliable, and compared with the traditional screw connection, it greatly improves the speed of installation and disassembly.

[0030] Combination Figure 1 , Figure 4 As shown, the buckle plate 8 has a buckle groove 9, and the rotating shaft 7 is rotatably engaged with the connecting leg 10.

[0031] In this embodiment, the design of the buckle groove 9 is to better cooperate with the locking member 5 and improve the stability of the buckle.

[0032] The locking component 5 includes outward-folding latches 11 disposed at both ends of the box body 1. The outward-folding latches 11 are L-shaped and have locking protrusions 12 at the bottom. When the outward-folding latches 11 enter the buckle groove 9, the locking protrusions 12 engage with the bottom wall of the buckle groove 9.

[0033] In this embodiment, when the buckle plate 8 is flipped down, the outward-flipping latch plate 11 enters the latch groove 9. At this time, the locking protrusion 12 engages with the bottom wall of the latch groove 9, further enhancing the locking effect of the latch, preventing the box cover 2 from being opened accidentally, and ensuring the safety of the internal components of the controller box.

[0034] Combination Figure 3 As shown, the threaded connection fastener 3 includes four parallel threaded legs 13 disposed at the bottom of the box body 1, and each threaded leg 13 has a threaded hole.

[0035] In this embodiment, the controller box can be firmly fixed on the mounting surface by installing screws and other connecting parts in the threaded holes. The design of the four threaded feet 13 ensures the stability and balance of the fixation.

[0036] The motor switch connection part 6 includes a motor switch connection socket 14 and a power indicator light connection socket 15 located on the side of the housing 1.

[0037] In this embodiment, the motor connection socket 14 is used to directly insert into the motor connection socket to achieve quick connection, and the power indicator connection socket 15 can be used to connect the power supply auxiliary circuit to reflect whether the power supply is normal. The box 1 is provided with a terminal block fixing seat 16, and the terminal block fixing seat 16 is provided with a terminal block positioning post 17.

[0038] The box 1 is provided with a terminal block fixing seat 16, and the terminal block fixing seat 16 is provided with a terminal block positioning post 17.

[0039] In this embodiment, the terminal block fixing seat 16 is used to fix the terminal block and prevent it from shaking inside the box 1, while the positioning post 17 can more accurately determine the installation position of the terminal block, ensuring the accuracy of the terminal block installation and thus ensuring its normal operation.

[0040] Combination Figure 2As shown, the box body 1 is also provided with two parallel capacitor positioning baffles 18 and a capacitor positioning post 19, and the capacitor positioning post 19 is provided with an anti-loosening fixing part 20.

[0041] In this embodiment, the capacitor positioning baffle 18 is used to position the capacitor and prevent it from moving back and forth within the housing 1; the capacitor positioning post 19 enters the anti-loosening fixing part 20 along the groove through the capacitor pressure plate foot, so that the capacitor pressure plate presses the capacitor down, preventing the capacitor from shaking up and down, thus improving the stability of the entire controller box's internal structure. Furthermore, the internal space is further divided, optimizing the layout.

[0042] Combination Figure 1 , Figure 2 As shown, the anti-loosening fixing part 20 includes two baffles 21 disposed on the capacitor positioning post 19. The two baffles 21 are located on the side of the capacitor positioning post 19 near the capacitor positioning baffle 18, and a sliding groove is formed between the baffles 21 and the capacitor positioning post 19.

[0043] In this embodiment, the capacitor pressure plate is installed and fixed by a sliding groove, and the retaining edge 21 plays a role in blocking and preventing loosening, thus ensuring the stability of the component during operation.

[0044] Combination Figure 2 As shown, the capacitor positioning post 19 has two capacitor positioning post base reinforcement parts 22 on the side away from the flange 21, and the two capacitor positioning post base reinforcement parts 22 and the terminal block fixing seat 16 form an installation area 23.

[0045] In this embodiment, the mounting area 23 can be used to mount other electronic components, making reasonable use of the space inside the box 1, and making the internal layout more compact and reasonable.

[0046] The working principle of this utility model is as follows:

[0047] When installing the water pump motor starter controller box, first fix the box 1 in the installation position using the threaded fastener 3 at the bottom of the box 1. Then, install the built-in electronic components, such as the terminal block, on the terminal block mounting base 16, and use the positioning pin 17 to ensure the accurate position of the terminal block. Place the capacitor between the capacitor positioning baffle 18 and the positioning partition 19, and use the capacitor pressure plate foot to enter the anti-loosening fixing part 20 along the groove so that the capacitor pressure plate presses and fixes the capacitor. Next, connect the motor switch connection part 6 to the terminal block, and connect the power cord interface 200 to the external... Connect the power cord to the power supply, connect the external power cord to the junction box, and connect the water pump motor wire to the junction box through the power connector 22. Finally, close the cover 2, rotate the buckle plates 8 at both ends of the cover 2 to flip the buckle plates 8 down, and the buckle groove 9 in the buckle plate 8 engages with the outward flip-out buckle plate 11 of the locking piece 5 at both ends of the box body 1. The locking protrusion 12 engages with the bottom wall of the buckle groove 9 to complete the fixing of the cover 2 and the box body 1. During operation, the electronic components in the controller box start the water pump motor through the motor switch connection part 6 to realize the normal operation of the water pump motor.

[0048] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0049] Although this document frequently uses terms such as box body 1, box cover 2, power cord interface 200, threaded connection fastener 3, snap-fit ​​fastening structure 4, locking element 5, motor switch connection part 6, rotating shaft 7, buckle plate 8, buckle groove 9, connecting support foot 10, outward-folding buckle plate 11, locking protrusion 12, threaded support foot 13, motor switch connection socket 14, power indicator light connection socket 15, terminal block mounting base 16, terminal block positioning post 17, capacitor positioning baffle 18, capacitor positioning post 19, capacitor positioning pressure plate anti-loosening fixing part 20, stop edge 21, capacitor positioning post base reinforcement part 22, and installation area 23, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A water pump motor start controller box comprising a box body (1) and a box cover (2), characterized in that, The box body (1) has two parallel power cord interfaces (200) at its end. The outer edge of the power cord interface (200) has threads. The inner diameter of the power cord interface (200) gradually decreases from the outside to the inside. A rubber and plastic seal needs to be placed inside the power cord interface (200). The inner diameter of the rubber and plastic seal gradually decreases from the outside to the inside. The power cord passes through a plastic nut with internal threads. The plastic nut is tightened with the power cord interface (200). After tightening, the power cord is firmly fixed by the interaction of the power cord interface (200), the rubber and plastic seal, and the plastic nut. The bottom of the box body (1) is provided with a threaded connection fixing part (3). The two ends of the box cover (2) are provided with a rotatable buckle fixing structure (4). The two ends of the box body (1) are provided with a locking part (5) that engages with the buckle fixing structure (4). The side of the box body (1) is provided with a motor switch connection part (6).

2. The water pump motor start controller box of claim 1, wherein, The buckle fixing structure (4) includes connecting legs (10) and rotating shaft (7) set at both ends of the box cover (2). The rotating shaft (7) is installed and fixed in the connecting legs (10). The rotating shaft (7) is provided with a buckle plate (8) integrally formed with the rotating shaft (7). When the buckle plate (8) is flipped down, it can be engaged with the locking part (5).

3. The water pump motor start controller box of claim 2, wherein, The buckle plate (8) has a buckle groove (9) and the rotating shaft (7) is rotatably engaged with the connecting leg (10).

4. The water pump motor start controller box of claim 3, wherein, The locking component (5) includes an outward-folding plate (11) disposed at both ends of the box body (1). The outward-folding plate (11) is L-shaped and has a locking protrusion (12) at the bottom. When the outward-folding plate (11) enters the buckle groove (9), the locking protrusion (12) engages with the bottom wall of the buckle groove (9).

5. The water pump motor start controller box of claim 4, wherein, The threaded connection fastener (3) includes four parallel threaded legs (13) located at the bottom of the box body (1), and each threaded leg (13) has a threaded hole.

6. The water pump motor start controller box of claim 5, wherein, The motor switch connection part (6) includes a motor switch connection socket (14) and a power indicator light connection socket (15) located on the side of the housing (1).

7. The water pump motor start controller box of claim 6, wherein, The box (1) is provided with a terminal block fixing seat (16), and the terminal block fixing seat (16) is provided with a terminal block positioning post (17).

8. The water pump motor start controller box of claim 7, wherein, The box (1) is also provided with two parallel capacitor positioning baffles (18) and a capacitor positioning post (19), and the capacitor positioning post (19) is provided with an anti-loosening fixing part (20).

9. The water pump motor start controller box of claim 8, wherein, The anti-loosening fixing part (20) includes two baffles (21) disposed on the capacitor positioning post (19). The two baffles (21) are located on the side of the capacitor positioning post (19) near the capacitor positioning baffle (18), and a groove is formed between the baffles (21) and the capacitor positioning post (19).

10. The water pump motor start controller box of claim 9, wherein, The capacitor positioning post (19) is provided with two capacitor positioning post base reinforcement parts (22) on the side away from the flange (21), and the two capacitor positioning post base reinforcement parts (22) and the terminal block fixing seat (16) form an installation area (23).

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