Sealing structure of electronic water pump

Abstract

The utility model relates to the technical field of sealing structures of water pumps, in particular to a sealing structure of an electronic water pump, which is characterized in that a gap between a volute and a waterproof casing is tightly blocked by the elastic force of a supporting framework and the elastic force of a sealing ring, so that liquid is always prevented from leaking, the use reliability is improved, and the service life of the electronic water pump is prolonged. Meanwhile, the installation and use convenience is improved; the volute is installed on the outer side wall of the waterproof machine shell. The sealing ring is sleeved on the outer side wall of the supporting framework, and the bottom end of the supporting framework is mounted on the outer side wall of the waterproof casing.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the sealing structure of water pump, in particular to a sealing structure of electronic water pump. BACKGROUND

[0002] At present, electronic water pump is mainly integrated water pump, and the electronic water pump integrates brushless motor, water pump head and controller three parts, but the cooling liquid into the brushless motor stator winding part and the controller part will cause failure, therefore, a waterproof machine shell is added between the motor stator winding part and the rotor part, and in order to ensure that the liquid does not leak, a sealing structure must be added between the waterproof chamber and the volute to completely seal, because the volute is full of liquid.

[0003] At present, in the existing sealing structure, such as the patent with the authorized announcement number CN211009253U, the utility model discloses a sealing structure of drainage pump, including pump shell, connecting ring and connecting plate, the inside threaded connection of connecting plate has the shaft sleeve, one end of the shaft sleeve is fixedly connected with the sealing plate, one side of the sealing plate is fixedly connected with the impeller, one side of the sealing plate is fixedly connected with the guard cover through the connecting hole, one side of the guard cover is provided with the fixed net plate.

[0004] But the connection sealing property between the pump shell and the shell cover of the structure is poor, which reduces the use effect. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a kind of elastic force of support framework and the elastic force of sealing ring, and the gap between volute and waterproof machine shell is tightly sealed, liquid is always guaranteed not to leak, use reliability is improved, and the sealing structure of electronic water pump of installation and use convenience is improved.

[0006] The utility model discloses a kind of sealing structure of electronic water pump, volute and waterproof machine shell, volute is installed on the outer side wall of waterproof machine shell;It further includes sealing ring and support framework, sealing ring is sleeved on the outer side wall of support framework, support framework bottom end is installed on the outer side wall of waterproof machine shell;When assembling, sealing ring is assembled with support framework first, then support framework is installed on the outer side wall of waterproof machine shell, when volute is installed on waterproof machine shell, volute is pressed and mounted in the outer ring of support framework, the elastic force of support framework and the elastic force of sealing ring seal the gap between volute and waterproof machine shell, so that liquid is always guaranteed not to leak, use reliability is improved, and installation and use convenience is improved.

[0007] Preferably, it further includes bending part, and the bending part is arranged at the opening position end of the support framework;By setting bending part, the use strength of support framework is improved, the situation that sealing leaks caused by excessive elastic deformation is avoided, and the contact area of the bottom of support framework and waterproof machine shell is increased.

[0008] Preferably, the cross section of the sealing ring and the support skeleton is U-shaped respectively; the assembly convenience between the sealing ring and the support skeleton is improved, and the elastic deformation reliability of the support skeleton is improved.

[0009] Preferably, the material of the sealing ring is rubber; the sealing effect is improved.

[0010] Preferably, the material of the support skeleton is stainless steel; the corrosion resistance is improved, and the service life is improved.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: during assembly, the sealing ring is assembled with the support skeleton first, then the support skeleton is installed on the outer side wall of the waterproof casing, when the volute is installed on the waterproof casing, the volute is pressed and assembled on the outer ring of the support skeleton, the elastic force of the support skeleton and the elastic force of the sealing ring tightly seal the gap between the volute and the waterproof casing, so that the situation that the liquid does not leak is always ensured, the use reliability is improved, and the installation and use convenience are improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the axonometric structure schematic view of the utility model;

[0013] Figure 2 is the axonometric structure schematic view of the volute and the waterproof casing connection;

[0014] Figure 3 is the axonometric local structure schematic view of the sealing ring and the support skeleton connection;

[0015] Figure 4 is the explosion structure schematic view of the sealing ring and the support skeleton;

[0016] Figure 5 is the side view structure schematic view of the waterproof casing and the support skeleton connection.

[0017] Markings in the drawings: 1, volute; 2, waterproof casing; 3, sealing ring; 4, support skeleton; 5, bending part. DETAILED DESCRIPTION

[0018] In order to facilitate 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.

[0019] Example 1

[0020] As Figures 1 to 5As shown, the utility model discloses a sealing structure of electronic water pump, volute 1 and waterproof machine shell 2, volute 1 is installed on the outer lateral wall of waterproof machine shell 2, still including sealing ring 3 and support skeleton 4, sealing ring 3 is sleeved on the outer lateral wall of support skeleton 4, support skeleton 4 bottom end is installed on the outer lateral wall of waterproof machine shell 2,

[0021] As Figure 3 Sealing ring 3 and support skeleton 4's cross section are U-shaped respectively as shown,

[0022] In this embodiment, when assembling, first, sealing ring 3 is assembled with support skeleton 4, then support skeleton 4 is installed on the outer lateral wall of waterproof machine shell 2, when volute 1 is installed on waterproof machine shell 2, volute 1 is pressed and assembled on the outer ring of support skeleton 4, the elastic force of support skeleton 4 and the elastic force of sealing ring 3 tightly seal the gap between volute 1 and waterproof machine shell 2, so that the situation that liquid does not leak is always ensured, use reliability is improved, and installation and use convenience are improved.

[0023] Example 2

[0024] On the basis of example 1, the utility model discloses a sealing structure of electronic water pump, as shown, Figure 3 Sealing ring 3 and support skeleton 4's cross section are U-shaped respectively as shown,

[0025] As Figure 4 The material of sealing ring 3 is rubber as shown,

[0026] As Figure 4 The material of support skeleton 4 is stainless steel as shown,

[0027] In this embodiment, by setting bending part 5, the use strength of support skeleton 4 is improved, the situation that sealing leaks caused by excessive elastic deformation is avoided, the convenience of assembling between sealing ring 3 and support skeleton 4 is improved, and the elastic deformation reliability of support skeleton 4 is improved.

[0028] The utility model discloses a sealing structure of electronic water pump, when working, when assembling, first, sealing ring 3 is assembled with support skeleton 4, then support skeleton 4 is installed on the outer lateral wall of waterproof machine shell 2, when volute 1 is installed on waterproof machine shell 2, volute 1 is pressed and assembled on the outer ring of support skeleton 4, the elastic force of support skeleton 4 and the elastic force of sealing ring 3 tightly seal the gap between volute 1 and waterproof machine shell 2.

[0029] The preferred embodiments of the utility model are described above, and it should be noted that, for ordinary skilled persons in the technical field, without departing from the technical principles of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the utility model.

Claims

1. A sealing structure for an electronic water pump, comprising a volute (1) and a waterproof housing (2), wherein the volute (1) is mounted on the outer wall of the waterproof housing (2); characterized in that, It also includes a sealing ring (3) and a support frame (4). The sealing ring (3) is fitted on the outer wall of the support frame (4), and the bottom end of the support frame (4) is installed on the outer wall of the waterproof housing (2).

2. The sealing structure of an electronic water pump as described in claim 1, characterized in that, It also includes a curved part (5), which is located at the end of the opening of the support frame (4).

3. The sealing structure of an electronic water pump as described in claim 1, characterized in that, The sealing ring (3) and the supporting frame (4) have U-shaped cross sections.

4. The sealing structure of an electronic water pump as described in claim 1, characterized in that, The sealing ring (3) is made of rubber.

5. The sealing structure of an electronic water pump as described in claim 1, characterized in that, The supporting frame (4) is made of stainless steel.

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