Electronic water pump structure
By using medium carbon steel inserts and reinforcing ribs laser-welded to the bottom of the waterproof housing of the electronic water pump, the problem of poor rigidity of austenitic stainless steel is solved, the connection rigidity between the housing and the shaft is enhanced, ensuring stable operation of the water pump and extending its service life.
Patent Information
- Application Number
- CN202520594359.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-04-01
AI Technical Summary
In existing electronic water pumps, the austenitic stainless steel water shield has poor rigidity, which makes the shaft prone to skew, affecting the normal operation and service life of the water pump.
The bottom of the waterproof housing is reinforced by laser welding with medium carbon steel inserts and reinforcing ribs to enhance its rigidity, prevent deformation and tilting, and ensure stable rotation of the shaft.
The rigidity of the waterproof housing has been improved, preventing shaft misalignment and pump oscillation, thus extending its service life.
Smart Images

Figure CN223662105U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electronic water pump, in particular to an electronic water pump structure. BACKGROUND
[0002] With the increasingly high energy saving and environmental protection requirements, as the key power source, the pump must also meet the high efficiency, low energy consumption standard.
[0003] The water pump is the mechanical property of conveying liquid or making liquid pressure. It transmits the mechanical energy of the prime mover or other external energy to the liquid, and makes the liquid energy increase, mainly used for conveying liquid including water, oil, acid and alkali liquid, emulsion, suspension emulsion and liquid metal etc.
[0004] At present, the electronic water pump is mainly integrated type water pump, the electronic water pump integrates brushless motor, water pump pump head, controller three parts, but the brushless motor stator winding part and the controller part cooling liquid goes in and will cause failure, therefore, increase a water -proof machine shell in the middle of motor stator winding part and rotor part, but the machine shell generally adopts austenitic stainless steel, because austenitic stainless steel does not magnetize, therefore will not affect the performance of motor, but austenitic stainless steel rigidity is poor, and the deformation is easy to occur, therefore, the shaft assembled on the stainless steel water -proof machine shell is easy to skew, and the water pump failure is caused. UTILITY MODEL CONTENTS
[0005] In order to solve the above technical problems, the utility model provides an electronic water pump structure.
[0006] The utility model discloses an electronic water pump structure, including rotor assembly, waterproof machine shell, stator assembly and shaft, the waterproof machine shell inside is installed with rotor assembly and stator assembly respectively, the rotor assembly is installed with the shaft, still include reinforcing component, the reinforcing component is installed at waterproof machine shell bottom end, reinforcing component strengthens the rigidity of waterproof machine shell bottom, prevents the deformation of waterproof machine shell bottom, avoids the skew of shaft, rotor assembly drives the rotation of shaft, enhances the rigidity of waterproof machine shell and shaft connection, guarantees that electronic water pump will not swing, deformation and other failures in the operation process of rotor assembly.
[0007] Preferably, the reinforcing component is a medium carbon steel insert, the waterproof machine shell bottom end is provided with an inward groove, and the medium carbon steel insert is installed in the inward groove of the waterproof machine shell bottom.
[0008] Preferably, it further includes a reinforcing rib, and the waterproof machine shell bottom end is provided with a plurality of reinforcing ribs in a circumferential direction.
[0009] Preferably, the medium carbon steel insert is installed in the inward recess of the waterproof casing by laser welding; the medium carbon steel insert is installed in the inward recess of the waterproof casing by laser welding.
[0010] Preferably, the number of the reinforcing ribs is eight.
[0011] Compared with the prior art, the beneficial effects of the utility model are that the reinforcing assembly strengthens the rigidity of the bottom of the waterproof casing, prevents the bottom of the waterproof casing from deforming, avoids the skew of the shaft, and the rotor assembly drives the shaft to rotate, thereby enhancing the rigidity of the connection between the waterproof casing and the shaft and ensuring that the electronic water pump does not swing, deform and fail during the operation of the rotor assembly. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 is the cross-sectional structure schematic view of the utility model;
[0013] Fig. 2 is the first axis measurement structure schematic view of the utility model;
[0014] Fig. 3 is the second axis measurement structure schematic view of the utility model.
[0015] Markings in the drawings: 1, rotor assembly; 2, waterproof casing; 3, stator assembly; 4, shaft; 5, medium carbon steel insert; 6, reinforcing rib. DETAILED DESCRIPTION
[0016] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0017] EMBODIMENT
[0018] As Figs. 1 to 3 shown, the utility model discloses an electronic water pump structure, including rotor assembly 1, waterproof casing 2, stator assembly 3 and shaft 4, waterproof casing 2 is installed with rotor assembly 1 and stator assembly 3 respectively in the inside, rotor assembly 1 is installed with shaft 4, still includes reinforcing assembly, reinforcing assembly is installed at waterproof casing 2 bottom end;
[0019] Reinforcing assembly is medium carbon steel insert 5, waterproof casing 2 bottom end is provided with inward recess, and the medium carbon steel insert 5 is installed in the inward recess;
[0020] Still include reinforcing rib 6, waterproof casing 2 bottom end is provided with multiple reinforcing rib 6 circumferentially;
[0021] The medium carbon steel insert 5 is installed in the inward recess of the waterproof casing 2 by laser welding.
[0022] The number of the reinforcing ribs 6 is eight.
[0023] In the embodiment, the medium carbon steel insert 5 is installed in the inward recess of the waterproof casing 2 by laser welding, and the medium carbon steel insert 5 cooperates with the plurality of reinforcing ribs 6 to strengthen the rigidity of the bottom of the waterproof casing 2, prevent the bottom of the waterproof casing 2 from deforming, avoid the skew of the shaft 4, and ensure that the electronic water pump does not swing during the operation of the rotor assembly 1.
[0024] The medium carbon steel insert 5 of the electronic water pump structure is purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.
[0025] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, a number of improvements and modifications can be made without departing from the technical principle of the utility model, and these improvements and modifications should also be regarded as the protection range of the utility model.
Claims
1. An electronic water pump structure, comprising a rotor assembly (1), a waterproof housing (2), a stator assembly (3), and a shaft (4), wherein the rotor assembly (1) and the stator assembly (3) are respectively installed inside the waterproof housing (2), and the shaft (4) is installed on the rotor assembly (1), characterized in that, It also includes a reinforcement component, which is installed at the bottom of the waterproof housing (2).
2. The electronic water pump structure as described in claim 1, characterized in that, The reinforcing component is a medium carbon steel insert (5), and the bottom end of the waterproof housing (2) is provided with an inward groove, in which the medium carbon steel insert (5) is installed.
3. The electronic water pump structure as described in claim 1 or 2, characterized in that, It also includes reinforcing ribs (6), and multiple sets of reinforcing ribs (6) are provided circumferentially at the bottom end of the waterproof housing (2).
4. The electronic water pump structure as described in claim 2, characterized in that, The medium carbon steel insert (5) is installed in the inward groove of the waterproof housing (2) by laser welding.
5. The electronic water pump structure as described in claim 3, characterized in that, The number of the reinforcing ribs (6) is eight.