Permanent magnet variable frequency water pump

Abstract

A kind of permanent magnet variable frequency water pump, including pump shell, circuit board being arranged in the upper portion of pump shell, the upper surface of the pump shell is equipped with a sliding groove;The upper portion of the sliding groove is equipped with the sliding cover matched with it;The right outer wall of the pump shell is equipped with a clamping groove vertically through the sliding groove;The right end of the sliding cover extends a clamping portion matched with the clamping groove downwards;The clamping groove is equipped with the anti-falling mechanism matched with the clamping portion;The upper surface of the sliding cover is equipped with a panel slot;The control panel matched with the panel slot is arranged in the panel slot;The outer edge of the lower surface of the sliding cover extends a baffle downwards, and the lower end surface of the baffle is attached with the groove bottom of the sliding groove;The inner wall of the lower portion of the sliding groove is equipped with the guide groove symmetrical with each other;The baffle of front and back sides is equipped with several guide blocks matched with the guide groove.The permanent magnet variable frequency water pump of the utility model not only can realize the quick disassembly of control panel, but also can guarantee the stability of control panel.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, and in particular to a permanent magnet variable frequency water pump. Background Technology

[0002] Permanent magnet variable frequency water pumps are widely used due to their high efficiency and energy saving. They typically include a pump casing, motor unit, control circuit board, and control panel. In the current technology, the control panel is mostly directly fixed to the pump casing with screws, or it forms an inseparable integrated structure with the pump casing. Therefore, when the control panel needs to be repaired or the user wants to upgrade the function, disassembly is extremely inconvenient, often requiring professional tools and personnel, or even the replacement of the entire water pump, resulting in extremely high maintenance costs. At the same time, if the control panel adopts a simple plug-in or snap-fit ​​connection method, the control panel is very easy to loosen under the long-term vibration working environment of the water pump, resulting in poor contact or panel detachment. Utility Model Content

[0003] The present invention aims to solve the existing technical problem by providing a permanent magnet variable frequency water pump that not only enables quick disassembly of the control panel but also ensures the stability of the control panel.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: This utility model discloses a permanent magnet variable frequency water pump, including a pump casing and a circuit board disposed in the upper part of the pump casing. The upper surface of the pump casing is provided with a sliding groove; the upper part of the sliding groove is provided with a matching sliding cover; the right outer wall of the pump casing is provided with a slot that is perpendicular to the sliding groove; the right end of the sliding cover extends downward to a locking part that matches the slot; the slot is provided with an anti-detachment mechanism that matches the locking part; the upper surface of the sliding cover is provided with a panel groove; the panel groove is provided with a control panel that matches it; the outer edge of the lower surface of the sliding cover extends downward to a retaining edge, the lower end face of the retaining edge being in contact with the bottom of the sliding groove; the inner walls of the front and rear sides of the lower part of the sliding groove are provided with symmetrical guide grooves; the retaining edges on the front and rear sides are provided with a plurality of guide blocks that match the guide grooves; the left side wall of the sliding groove is provided with a lead wire hole that communicates with the internal space of the pump casing; the middle of the left retaining edge is provided with a notch corresponding to the position of the lead wire hole; the lower surface of the sliding cover is provided with a connecting hole that communicates with the panel groove; the control panel and the sliding cover are fixed together by a fixing structure.

[0005] The anti-fall-off mechanism includes a telescopic hole located at the lower end of the locking part; a fixing hole communicating with the telescopic hole is provided on the inner wall of the pump housing; a matching limiting tube is provided in the fixing hole; symmetrical inner guide grooves are provided on the upper and lower inner walls of the limiting tube; corresponding outer guide grooves are provided on the upper and lower inner walls of the telescopic hole; symmetrical limiting grooves are provided on the front and rear sides of the left end of the limiting tube; the left end of a locking rod passes through the telescopic hole and the limiting tube sequentially to the left; limiting blocks matching the limiting grooves are provided on the upper and lower sides of the outer wall of the left end of the locking rod; a limiting head is provided on the right end of the locking rod; a limiting spring is provided on the left end face of the limiting head and the right side wall of the locking part, which is fitted outside the locking rod.

[0006] The center of the right end face of the limiting head is provided with a handle; the center of the right end face of the locking rod is provided with a screw hole; the center of the left end face of the limiting head is provided with a screw connector screwed into the screw hole.

[0007] The left end of the limiting tube has a positioning part that fits against the right inner wall of the pump casing; the positioning part has a number of positioning through holes evenly distributed in a circle; the right inner wall of the pump casing has a number of positioning screw holes coaxial with the positioning through holes; a positioning screw passes through the positioning through hole to the right and is screwed into the positioning screw hole, and the head of the positioning screw presses against the left side wall of the positioning part.

[0008] The fixing structure includes several fixing screw holes located on the outer edge of the lower surface of the control panel; the lower surface of the sliding cover is provided with several fixing through holes that communicate with the fixing screw holes; a fixing screw passes upward through the fixing through hole and is screwed into the fixing screw hole, with the head of the fixing screw pressing against the lower surface of the sliding cover.

[0009] The guide block has an inclined surface at its lower part, with one end of the inclined surface extending into the guide groove and tilting upwards.

[0010] This utility model has the following beneficial effects: Compared with the prior art, the permanent magnet variable frequency water pump with the structure of this utility model installs the control panel on the sliding cover. When the anti-detachment mechanism is not unlocked, the anti-detachment mechanism can firmly fix the sliding cover in the slide groove through the locking part, thereby ensuring the stability of the control panel. When the control panel needs to be disassembled, simply unlock the anti-detachment mechanism, and the sliding cover can be easily moved out of the slide groove, thereby realizing the quick disassembly of the control panel and facilitating the maintenance and replacement of the control panel. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the permanent magnet variable frequency water pump of this utility model; Figure 2 yes Figure 1 An enlarged view of part A; Figure 3 yes Figure 1 An enlarged view of part B; Figure 4 This is a cross-sectional view of the limiting block and the limiting groove in action; Figure 5 This is a schematic diagram of the pump casing; Figure 6 This is a schematic diagram of the sliding cover; Figure 7 This is a structural schematic diagram of the permanent magnet variable frequency water pump of this utility model. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Please see Figures 1 to 7 This utility model provides a permanent magnet variable frequency water pump, including a pump housing 1 and a circuit board 2 disposed in the upper part of the pump housing 1. The upper surface of the pump housing 1 is provided with a sliding groove 3; a matching sliding cover 4 is provided in the upper part of the sliding groove 3; a slot 5 perpendicularly penetrating the sliding groove 3 is provided on the right outer wall of the pump housing 1; a locking part 6 matching the slot 5 extends downward from the right end of the sliding cover 4; an anti-fall-off mechanism matching the locking part 6 is provided in the slot 5; a panel groove 7 is provided on the upper surface of the sliding cover 4; a matching control panel 8 is provided in the panel groove 7; the sliding cover 4... A retaining edge 9 extends downward from the outer edge of the lower surface, and the lower end face of the retaining edge 9 fits against the bottom of the slide groove 3; the inner walls of the front and rear sides of the lower part of the slide groove 3 are provided with symmetrical guide grooves 10; the retaining edge 9 on the front and rear sides is provided with a number of guide blocks 11 that match the guide grooves; the left side wall of the slide groove 3 is provided with a lead wire hole 12 that communicates with the internal space of the pump housing 1; the middle of the left retaining edge 9 is provided with a notch 13 that corresponds to the position of the lead wire hole 12; the lower surface of the sliding cover 4 is provided with a connecting hole 14 that communicates with the panel groove 7; the control panel 8 and the sliding cover 4 are fixed together by a fixing structure.

[0013] The anti-fall-off mechanism includes a telescopic hole 15 located at the lower end of the locking part 6; a fixing hole 16 communicating with the telescopic hole 15 is provided on the inner wall of the pump housing 1; a limiting tube 17 matching the fixing hole 16 is provided in the fixing hole 16; symmetrical inner guide grooves 18 are provided on the upper and lower inner walls of the limiting tube 17; outer guide grooves 19 corresponding to the positions of the inner guide grooves 18 are provided on the upper and lower inner walls of the telescopic hole 15; symmetrical limiting grooves 20 are provided on the front and rear sides of the left end of the limiting tube 17; the left end of a locking rod 21 passes through the telescopic hole 15 and the limiting tube 17 sequentially to the left; limiting blocks 22 matching the limiting grooves 20 are provided on the upper and lower sides of the outer wall of the left end of the locking rod 21; a limiting head 23 is provided on the right end of the locking rod 21; a limiting spring 24 set outside the locking rod 21 is provided on the left end face and the right side wall of the locking part 6.

[0014] The center of the right end face of the limiting head 23 is provided with a handle 25; the center of the right end face of the locking rod 21 is provided with a screw hole 26; the center of the left end face of the limiting head 23 is provided with a screw connector 27 screwed into the screw hole 26.

[0015] The left end of the limiting tube 17 has a positioning part 28 that fits against the right inner wall of the pump housing 1; the positioning part 28 has a plurality of positioning through holes 29 evenly distributed in a circle; the right inner wall of the pump housing 1 has a plurality of positioning screw holes 30 coaxial with the positioning through holes 29; a positioning screw 31 passes through the positioning through hole 29 to the right and is screwed into the positioning screw hole 30, and the head of the positioning screw 31 presses against the left side wall of the positioning part 28.

[0016] The fixing structure includes several fixing screw holes 32 located on the outer edge of the lower surface of the control panel 8; the lower surface of the sliding cover 4 is provided with several fixing through holes 33 that communicate with the fixing screw holes 32; a fixing screw 34 passes upward through the fixing through hole 33 and is screwed into the fixing screw hole 32, with the head of the fixing screw 34 pressing against the lower surface of the sliding cover 4.

[0017] The guide block 11 has an inclined surface 35 at its lower part, and one end of the inclined surface 35 that extends into the guide groove 10 is inclined upward.

[0018] The method of using this utility model is as follows: The wires on the circuit board 2 can be connected to the control panel 8 in sequence through the lead hole 12, the notch 13, the gap between the lower surface of the sliding cover 4 and the bottom of the groove 3, and the connecting hole 14. At this time, the control panel 8 can control the circuit board 2, thereby realizing the control of the water pump.

[0019] The anti-fall-off mechanism securely fixes the sliding cover 4 within the slide groove 3, effectively securing the control panel 8 and preventing it from loosening under long-term vibration of the water pump. When the control panel 8 needs to be disassembled, simply move the sliding cover 4 outside the slide groove 3. Then, press the locking rod 21 to the left using the limiting head 23. The leftward pressure effectively counteracts the elasticity of the limiting spring 24, compressing it. The locking rod 21, along with the limiting block 22, moves to the left, disengaging the limiting block 22 from the limiting groove 20. Then, the locking rod 21 can be rotated, causing the limiting block 22 to rotate to the position corresponding to the inner guide groove 18. At this point, the locking rod 21 is no longer restricted by the limiting groove 20, and the locking part 6 can smoothly disengage from the locking groove 5 to the right, allowing the sliding cover 4 to disengage from the slide groove 3 to the right. Once the sliding cover 4 is removed, the control panel 8 can be easily disassembled for maintenance and replacement.

[0020] When it is necessary to remove the control panel 8 from the slide cover 4, simply unscrew the fixing screw 34 from the fixing screw hole 32 of the control panel 8 to remove the control panel 8. The removal process is extremely simple and efficient.

[0021] In summary, this utility model installs the control panel 8 on the sliding cover 4. When the anti-detachment mechanism is not unlocked, the anti-detachment mechanism can firmly fix the sliding cover 4 in the slide groove 3 through the locking part 6, thereby ensuring the stability of the control panel 8. When the control panel 8 needs to be disassembled, the anti-detachment mechanism can be unlocked, and the sliding cover 4 can be easily moved out of the slide groove 3, thereby realizing the quick disassembly of the control panel 8 and facilitating the maintenance and replacement of the control panel 8.

[0022] The center of the right end face of the limiting head 23 is provided with a handle 25. The presence of the handle 25 facilitates the application of force to the limiting head 23, thereby facilitating the rotation of the locking rod 21. The center of the right end face of the locking rod 21 is provided with a screw hole 26, and the center of the left end face of the limiting head 23 is provided with a screw connector 27 screwed into the screw hole 26. This fixing method of the limiting head 23 facilitates the assembly and disassembly of the limiting head 23, thereby facilitating the assembly and disassembly of the locking rod 21.

[0023] The left end of the limiting tube 17 has a positioning part 28 that fits against the right inner wall of the pump housing 1. The positioning part 28 has several positioning holes 29 evenly distributed in a circle. The right inner wall of the pump housing 1 has several positioning screw holes 30 coaxial with the positioning holes 29. A positioning screw 31 passes through the positioning hole 29 to the right and is screwed into the positioning screw hole 30. The head of the positioning screw 31 presses against the left side wall of the positioning part 28. The fit between the positioning hole 29 and the positioning screw hole 30 on the positioning part 28 can effectively ensure that the position of the inner outlet groove 18 is consistent with the position of the outer outlet groove 19, so that the limiting block 22 can move out of the pump housing 1 in sequence along the inner outlet groove 18 and the outer outlet groove 19, and realize the smooth disassembly of the locking rod 21.

[0024] The guide block 11 has a slope 35 at its lower part. The slope 35 extends into the guide groove 10 and slopes upward. The presence of the slope 35 not only guides the guide block 11 when it enters the guide groove 10, but also effectively avoids the contact area between the bottom of the guide block 11 and the guide groove 10, reducing wear and friction, and ensuring the smoothness of the sliding cover 4 when it slides in the slide groove 3.

Claims

1. A permanent magnet variable frequency water pump, comprising a pump casing and a circuit board disposed in the upper part of the pump casing, characterized in that: The upper surface of the pump casing is provided with a sliding groove; a matching sliding cover is provided in the upper part of the sliding groove; a slot perpendicular to the sliding groove is provided on the outer right side of the pump casing; a locking part matching the slot extends downward from the right end of the sliding cover; an anti-drop mechanism matching the locking part is provided in the slot; a panel groove is provided on the upper surface of the sliding cover; a matching control panel is provided in the panel groove; a stop edge extends downward from the outer edge of the lower surface of the sliding cover, and the lower end face of the stop edge fits against the bottom of the sliding groove; symmetrical guide grooves are provided on the inner walls of the front and rear sides of the lower part of the sliding groove; several guide blocks matching the guide grooves are provided on the stop edges on the front and rear sides; a lead wire hole communicating with the internal space of the pump casing is provided on the left side wall of the sliding groove; a notch corresponding to the position of the lead wire hole is provided in the middle of the stop edge on the left side; a connecting hole communicating with the panel groove is provided on the lower surface of the sliding cover; the control panel and the sliding cover are fixed together by a fixing structure.

2. The permanent magnet variable frequency water pump according to claim 1, characterized in that: The anti-fall-off mechanism includes a telescopic hole located at the lower end of the locking part; a fixing hole communicating with the telescopic hole is provided on the inner wall of the pump housing; a matching limiting tube is provided in the fixing hole; symmetrical inner guide grooves are provided on the upper and lower inner walls of the limiting tube; corresponding outer guide grooves are provided on the upper and lower inner walls of the telescopic hole; symmetrical limiting grooves are provided on the front and rear sides of the left end of the limiting tube; the left end of a locking rod passes through the telescopic hole and the limiting tube sequentially to the left; limiting blocks matching the limiting grooves are provided on the upper and lower sides of the outer wall of the left end of the locking rod; a limiting head is provided on the right end of the locking rod; a limiting spring is provided on the left end face of the limiting head and the right side wall of the locking part, which is fitted outside the locking rod.

3. A permanent magnet variable frequency water pump according to claim 2, characterized in that: The center of the right end face of the limiting head is provided with a handle; the center of the right end face of the locking rod is provided with a screw hole; the center of the left end face of the limiting head is provided with a screw connector screwed into the screw hole.

4. A permanent magnet variable frequency water pump according to claim 2, characterized in that: The left end of the limiting tube has a positioning part that fits against the right inner wall of the pump casing; the positioning part has a number of positioning through holes evenly distributed in a circle; the right inner wall of the pump casing has a number of positioning screw holes coaxial with the positioning through holes; a positioning screw passes through the positioning through hole to the right and is screwed into the positioning screw hole, and the head of the positioning screw presses against the left side wall of the positioning part.

5. A permanent magnet variable frequency water pump according to claim 1, characterized in that: The fixing structure includes several fixing screw holes located on the outer edge of the lower surface of the control panel; the lower surface of the sliding cover is provided with several fixing through holes that communicate with the fixing screw holes; a fixing screw passes upward through the fixing through hole and is screwed into the fixing screw hole, with the head of the fixing screw pressing against the lower surface of the sliding cover.

6. A permanent magnet variable frequency water pump according to claim 1, characterized in that: The guide block has an inclined surface at its lower part, with one end of the inclined surface extending into the guide groove and tilting upwards.

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