An electromagnetic pump capable of automatic power-off after plugging
By introducing a microcontroller into the electromagnetic pump, the power-off function triggered by the pump pressure is used to solve the problems of wear and scale buildup in the electromagnetic pump under pressure blockage, thus extending the pump's lifespan and reducing noise and power consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN AIDI ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-08-04
AI Technical Summary
Existing electromagnetic pumps cannot automatically shut off power when under pressure blockage, leading to high-temperature wear, dry pumping, and scale formation, which affects their lifespan and performance.
An electromagnetic pump including a microcontroller was designed. The pump pressure triggers a microcontroller switch to automatically cut off power after pressure blockage. The pressure transmission and power-off triggering functions are achieved through a diaphragm and spring structure.
It achieves automatic power-off after pressure blockage, extending the life of the water pump, reducing power consumption and noise, and is suitable for long-term pressure blockage application scenarios.
Smart Images

Figure CN224592312U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electromagnetic pumps and relates to an electromagnetic pump that can automatically cut off power after pressure blockage. Background Technology
[0002] Existing electromagnetic pumps cannot achieve the function of shutting off power when pressure is blocked. In many application scenarios, the water pump is constantly blocked. Under long-term high temperature and pressure blockage, the internal components of the electromagnetic pump wear down. The temperature rise under pressure blockage is very high, and it is very easy to dry pump, produce scale, and affect the life of the water pump. Summary of the Invention
[0003] To address the aforementioned problems, this invention provides an electromagnetic pump that can automatically cut off power after pressure blockage.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] An electromagnetic pump that can automatically cut off power after pressure blockage includes a pump body. A microcontroller is provided at the outlet end of the pump body. The microcontroller includes a switch housing. A microcontroller switch is provided inside the switch housing. A spring is provided on one side of the microcontroller switch. A trigger pad is provided at one end of the spring near the outlet end, and a spring fixing block is provided at the other end. A diaphragm is provided on the side of the trigger pad away from the spring.
[0006] Preferably, the switch housing is provided with a first connecting piece and a negative connecting piece.
[0007] Preferably, the pump body is provided with a second connecting piece and a positive electrode connecting piece.
[0008] Preferably, the pump body includes a pump housing, and a working structure is provided inside the pump housing.
[0009] Preferably, the pump housing and the switch housing are fixedly connected by bolts.
[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0011] The new water pump can automatically shut off power when pressure is blocked and automatically open when pressure is released;
[0012] It perfectly solves the performance and lifespan deficiencies of electromagnetic pumps caused by pressure blockage in environments such as fabric cleaning machines and floor scrubbers where water pumps need to be powered on and pressure blocked for a long time.
[0013] In applications with long-term pressure buildup, this water pump can have a longer lifespan than other water pumps.
[0014] Implementing on / off switching can reduce power consumption and noise in terminal products. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional structural diagram of an electromagnetic pump;
[0017] Figure 2 This is the front view of the electromagnetic pump;
[0018] Figure 3 for Figure 2 Sectional view of CC;
[0019] Figure 4 for Figure 3 A magnified view of a portion of the Z-axis;
[0020] Figure 5 for Figure 2 Sectional view of DD;
[0021] Figure 6 This is an exploded view of an electromagnetic pump. Detailed Implementation
[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0024] Example 1, as Figures 1-6 As shown, this utility model provides an electromagnetic pump that can automatically cut off power after pressure blockage, including a pump body. A microcontroller is provided at the water outlet end of the pump body. The microcontroller includes a switch housing, and a microcontroller switch is provided inside the switch housing. A spring is provided on one side of the microcontroller switch. A trigger pad is provided at one end of the spring near the water outlet end, and a spring fixing block is provided at the other end. A diaphragm is provided on the side of the trigger pad away from the spring.
[0025] Preferably, the switch housing is provided with a first connecting piece and a negative connecting piece.
[0026] Preferably, the pump body is provided with a second connecting piece and a positive electrode connecting piece.
[0027] Preferably, the pump body includes a pump housing, and a working structure is provided inside the pump housing.
[0028] Preferably, the pump housing and the switch housing are fixedly connected by bolts.
[0029] The working principle of the electromagnetic pump that automatically shuts off power after pressure blockage:
[0030] 1. A normally closed micro-switch is selected, and the switch terminals are connected to the electromagnetic pump terminals to form a closed-loop circuit.
[0031] 2. The automatic power-off electromagnetic pump uses the water pump pressure to trigger a micro-control switch to achieve power-off.
[0032] As shown in the figure, if the outlet is blocked, pressure will be generated in cavity A. The pressure is transmitted to diaphragm cavity B. When the pressure in the cavity is greater than the spring force, diaphragm B expands and pushes out trigger pad 6. Trigger pad 6 opens the trigger point of the micro-control switch to realize the power-off function.
[0033] When the outlet is opened, the pressure inside the cavity disappears, and the spring force pushes the 6 trigger pads back. The starting point of the micro-switch is not affected by the pressure, and the natural push back realizes the automatic power-on function.
[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An electromagnetic pump which can be automatically powered off after plugging, comprising a pump machine body, characterized in that, The water outlet end of the pump body is provided with a micro-control device, the micro-control device comprises a switch shell, the inside of the switch shell is provided with a micro-control switch, one side of the micro-control switch is provided with a spring, one end of the spring close to the water outlet end is provided with a trigger gasket, the other end of the spring is provided with a spring fixing block, and the side of the trigger gasket away from the spring is provided with a diaphragm.
2. The electromagnetic pump of claim 1, wherein, The switch shell is provided with a first connecting sheet and a negative connecting sheet.
3. The electromagnetic pump of claim 2, wherein, The pump body is provided with a second connecting sheet and a positive connecting sheet.
4. The electromagnetic pump of claim 3, wherein, The pump body comprises a pump shell, and the inside of the pump shell is provided with a working structure.
5. The electromagnetic pump of claim 4, wherein, The pump shell and the switch shell are fixedly connected through bolts.