Automobile electronic water pump volute chamber sealing structure

Abstract

An automobile electronic water pump volute chamber sealing structure comprises a volute and an outer shell, the volute is provided with a sealing connection structure, the sealing connection structure comprises a sealing ring and a buckle connection end arranged on the volute, the two ends of the sealing ring are connected with the volute and the outer shell in a sealing mode respectively, the outer shell is provided with a buckle groove corresponding to the buckle connection end, and the buckle connection end is connected with the sealing ring in a sealing mode. According to the automobile electronic water pump volute chamber sealing structure, the buckle connecting end is arranged on the volute, and the buckle groove corresponding to the buckle connecting end is formed in the shell, so that the volute and the shell can be in buckle connection convenient to disassemble, and the practicability and convenience of the automobile electronic water pump volute chamber sealing structure are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic water pumps, in particular to a volute sealing structure of an automobile electronic water pump. Background Art

[0002] The connection between the volute and the outer shell in the existing automotive electronic water pump usually requires opening corresponding screw holes on the outer shell and the volute, and connecting the two with screws. Although such a structure can achieve the connection between the volute and the outer shell, the arrangement of the screw holes and screws makes the sealing between the outer shell and the volute poor, and it is easy to produce a gap between the volute and the outer shell, which causes water to flow out of the gap when the water pump is working, causing leakage of the water pump and even affecting the normal operation of the water pump. At the same time, the use of screws for connection will also increase the assembly steps and costs of the water pump, which is not conducive to the production and application of the water pump. Utility Model Content

[0003] In view of this, the utility model provides a sealing structure for a volute of an automotive electronic water pump.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A sealing structure for a volute chamber of an automotive electronic water pump comprises a volute and an outer shell. The volute is provided with a sealing connection structure, the sealing connection structure comprises a sealing ring and a snap-on connection end arranged on the volute, the two ends of the sealing ring are respectively sealed with the volute and the outer shell, a snap-on groove corresponding to the snap-on connection end is arranged on the outer shell, and the snap-on connection end extends into the snap-on groove and is snap-connected with the outer shell.

[0006] Preferably, a plurality of snap-on connecting ends are provided, and the snap-on connecting ends are evenly spaced on the outer wall of the volute, and the snap-on connecting end has a connecting portion and a snap-on portion, and a snap-on opening is provided on a groove wall on one side of the snap-on groove away from the center of the outer shell, and the snap-on opening connects the inside of the snap-on groove with the outside of the snap-on groove, and the connecting portion of the snap-on connecting end extends into the connecting groove to be connected with the outer shell, and the snap-on portion extends out of the snap-on connecting groove through the snap-on opening, and the snap-on portion presses against the inner wall of the snap-on opening to realize snap-on connection with the outer shell.

[0007] Preferably, the volute has an end close to the outer shell and is concave to form a sealing ring groove, the sealing ring is arranged in the sealing ring groove, the upper part of the sealing ring is sealingly connected to the groove wall of the sealing ring groove, and the lower part of the sealing ring is sealingly connected to the outer shell.

[0008] Preferably, the top edge of the housing protrudes to form a sealing ring positioning end, the sealing ring positioning end is arranged in an annular structure, and the sealing ring positioning end extends into the sealing ring groove to abut against the sealing ring.

[0009] Preferably, the buckle portion has an inclined arc surface, and the inclination direction of the arc surface is that the bottom end of the buckle portion is inclined toward the upper part of the buckle portion away from the central axis of the shell.

[0010] Preferably, an impeller is arranged between the outer shell and the volute, and an impeller mounting groove is formed in the outer shell, a groove wall on one side of the impeller mounting groove away from the volute protrudes to form an impeller positioning end, an impeller ring groove is formed between the impeller positioning end and the side groove wall of the impeller mounting groove, one end of the impeller extends into the impeller ring groove and is sleeved on the impeller positioning end, and a pressing gap is formed between the impeller and the groove wall of the impeller ring groove for the snap connection end to be separated from the snap groove.

[0011] Preferably, the volute is integrally formed by injection molding.

[0012] The beneficial effect of the utility model is that by arranging a snap connection end on the volute and arranging a snap groove corresponding to the snap connection end on the outer shell, a snap connection that is easy to disassemble can be made between the volute and the outer shell, thereby further improving the practicality and convenience of the volute chamber sealing structure of the automotive electronic water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Attached Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Attached Figure 2 For attachment Figure 1 Sectional view at AA;

[0016] Attached Figure 3 For attachment Figure 1 Schematic diagram of structural decomposition. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The utility model will be further described below in conjunction with the accompanying drawings of the specification.

[0019] The utility model provides the following technical solutions:

[0020] As attached Figure 1-3 As shown, the utility model discloses a sealing structure of a volute chamber of an automotive electronic water pump, comprising a volute 1 and a shell 2, wherein a sealing connection structure is arranged on the volute 1, wherein the sealing connection structure comprises a sealing ring 3 and a buckle connection end 4 arranged on the volute 1, wherein the two ends of the sealing ring 3 are respectively sealed with the volute 1 and the shell 2, and a buckle groove 5 corresponding to the buckle connection end 4 is arranged on the shell 2, wherein the buckle connection end 4 extends into the buckle groove 5 and is buckled with the shell 2. Specifically, in the present design, by arranging the buckle connection end 4 on the volute 1 and arranging the buckle groove 5 corresponding to the buckle connection end 4 on the shell 2, the volute 1 and the shell 2 can be buckled for easy disassembly, thereby further improving the practicality and convenience of the sealing structure of the volute chamber of an automotive electronic water pump. In practical applications, the user only needs to simply insert the buckle connection end 4 into the buckle groove 5 to complete the connection between the volute 1 and the shell 2, without the need to use additional tools or equipment. At the same time, in order to ensure the sealing performance between the volute 1 and the shell 2, the present design arranges a sealing ring 3 between the volute 1 and the shell 2. The two ends of the sealing ring 3 are in close contact with the volute 1 and the outer shell 2 respectively, forming an effective sealing structure, which can effectively prevent liquid or gas from leaking out of the volute chamber, thereby ensuring the normal operation of the automotive electronic water pump.

[0021] Furthermore, the snap-on connection ends 4 are provided in plurality, and the snap-on connection ends 4 are evenly spaced on the outer wall of the volute 1, and the snap-on connection ends 4 have a connection portion 6 and a snap-on portion 7, and a snap-on opening 8 is provided on the groove wall on one side of the snap-on groove 5 away from the center of the outer shell 2, and the snap-on opening connects the inside of the snap-on groove 5 and the outside of the snap-on groove 5, and the connection portion 6 of the snap-on connection end 4 extends into the connection groove to connect with the outer shell 2, and the snap-on portion 7 extends out of the snap-on connection groove through the snap-on opening 8, and the snap-on portion 7 is against the inner wall of the snap-on opening 8 to realize snap-on connection with the outer shell 2. Specifically, in the present embodiment, in order to improve the stability and reliability of the sealing structure of the volute chamber of the automotive electronic water pump, a plurality of snap-on connection ends 4 are provided on the outer wall of the volute 1, and these snap-on connection ends 4 are evenly spaced to ensure that the connection between the volute 1 and the outer shell 2 is more uniform and firm. Each snap-on connection end 4 includes a connection portion 6 and a snap-on portion 7. The connection portion 6 is responsible for connecting the snap-on connection end 4 to the connection groove of the housing 2, while the snap-on portion 7 is responsible for realizing the snap-on connection with the housing 2. A snap-on opening 8 is provided on the groove wall of the snap-on groove 5 away from the center of the housing 2. These snap-on openings 8 allow the snap-on portion 7 to be easily inserted into the inside of the snap-on groove 5 and extend out of the snap-on groove 5 through the snap-on openings 8. When the snap-on portion 7 extends out of the snap-on opening 8, it will abut against the inner wall of the snap-on opening 8, thereby realizing a firm snap-on connection with the housing 2. This design not only makes the connection between the volute 1 and the housing 2 more stable, but also improves the convenience of disassembly and installation.

[0022] Further, the end of the volute 1 close to the outer shell 2 is concave to form a sealing ring groove 9, the sealing ring 3 is arranged in the sealing ring groove 9, the upper part of the sealing ring 3 is sealed with the groove wall of the sealing ring groove 9, and the lower part of the sealing ring 3 is sealed with the outer shell 2. Specifically in this embodiment, in order to improve the sealing performance of the sealing structure of the volute chamber of the automotive electronic water pump, the present design forms a sealing ring groove 9 by concave on the end of the volute 1 close to the outer shell 2. The design of the sealing ring groove 9 enables the sealing ring 3 to be better embedded therein to form a tight sealing structure. The upper part of the sealing ring 3 is in close contact with the groove wall of the sealing ring groove 9 to ensure that liquid or gas cannot leak from there. At the same time, the lower part of the sealing ring 3 is also tightly sealed with the outer shell 2, further enhancing the overall sealing effect. This design not only improves the sealing performance of the sealing structure of the volute chamber of the automotive electronic water pump, but also effectively prolongs the service life and reduces the frequency of maintenance and replacement.

[0023] Furthermore, the top edge of the housing 2 protrudes to form a sealing ring positioning end 10, and the sealing ring positioning end 10 is arranged in an annular structure, and the sealing ring positioning end 10 extends into the sealing ring groove 9 to abut against the sealing ring 3. Specifically, in the present embodiment, by protruding from the top edge of the housing 2 to form the sealing ring positioning end 10, further positioning and fixing of the sealing ring 3 is achieved. The sealing ring positioning end 10 is arranged in an annular structure, which can evenly abut against the sealing ring 3 to ensure that it is stably located in the sealing ring groove 9. This design not only enhances the sealing effect, but also improves the overall stability of the sealing structure of the volute chamber of the automotive electronic water pump. At the same time, due to the existence of the sealing ring positioning end 10, the user can also more conveniently locate and place the sealing ring 3 during the installation and disassembly process, thereby improving the convenience of operation.

[0024] Furthermore, the buckle portion 7 has an inclined arc surface 11, and the inclination direction of the arc surface 11 is such that the bottom end of the buckle portion 7 is inclined toward the upper part of the buckle portion 7 away from the central axis of the housing 2. Specifically, in this embodiment, the design of the buckle portion 7 takes into account the convenience of installation and disassembly, and it has an inclined arc surface 11. The inclination direction of the arc surface 11 makes the bottom end of the buckle portion 7 face upward and away from the central axis of the housing 2. This design is conducive to the buckle portion 7 being smoothly inserted into the buckle groove 5 during installation, and when the housing 2 and the volute 1 are close, the arc surface 11 can gradually guide the buckle portion 7 into the buckle opening 8, thereby achieving a quick and accurate buckle connection.

[0025] Further, an impeller 12 is arranged between the outer shell 2 and the volute 1, and an impeller mounting groove 13 is formed in the outer shell 2. An impeller positioning end 14 is formed on the groove wall of the impeller mounting groove 13 on one side away from the volute 1. An impeller ring groove 15 is formed between the impeller positioning end 14 and the side groove wall of the impeller mounting groove 13. One end of the impeller 12 extends into the impeller ring groove 15 and is sleeved on the impeller positioning end 14. A pressing gap 16 is formed between the impeller 12 and the groove wall of the impeller ring groove 15 for the snap-on connection end 4 to be separated from the snap-on groove 5. Specifically, in this embodiment, an impeller 12 is arranged between the outer shell 2 and the volute 1 for driving the flow of liquid. In order to ensure the stable installation and positioning of the impeller 12, a special impeller mounting groove 13 is formed inside the outer shell 2. On the groove wall of the impeller mounting groove 13 on one side away from the volute 1, we designed a protruding impeller positioning end 14. An impeller ring groove 15 is formed between this positioning end and the side groove wall of the impeller installation groove 13, providing an accurate position for the installation of the impeller 12. When installing the impeller 12, one end of it will extend into the impeller ring groove 15 and be sleeved on the impeller positioning end 14 to achieve stable positioning. At the same time, a certain pressing gap 16 is left between the impeller 12 and the groove wall of the impeller ring groove 15. This design is so that during the installation or disassembly process, the user can press the buckle connection end 4 so that the buckle connection end 4 squeezes the housing 2, so that the housing 2 is squeezed toward the impeller 12, so that the buckle connection end 4 has enough space to break away from the buckle groove 5, so as to facilitate the disassembly or installation operation.

[0026] Furthermore, the volute 1 is integrally formed by injection molding. Specifically, in this embodiment, the volute 1 is manufactured by an integral injection molding process, which can ensure the structural integrity and stability of the volute 1. Injection molding can make the various parts of the volute 1 tightly combined, avoiding leakage problems that may be caused by welding or assembly.

[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing structure for a volute of an automotive electronic water pump, comprising a volute and a housing, characterized in that: A sealing connection structure is provided on the volute, and the sealing connection structure includes a sealing ring and a snap-on connection end provided on the volute, two ends of the sealing ring are respectively sealed with the volute and the outer shell, a snap-on groove corresponding to the snap-on connection end is provided on the outer shell, the snap-on connection end extends into the snap-on groove and is snap-connected with the outer shell, a plurality of snap-on connection ends are provided, and the snap-on connection ends are evenly spaced on the outer wall of the volute, the snap-on connection end has a connecting portion and a snap-on portion, a snap-on opening is provided on a groove wall on one side of the snap-on groove away from the center of the outer shell, the snap-on opening connects the inside of the snap-on groove and the outside of the snap-on groove, the connecting portion of the snap-on connection end extends into the connecting groove and is connected with the outer shell, the snap-on portion extends out of the snap-on connection groove through the snap-on opening, and the snap-on portion presses against the inner wall of the snap-on opening to realize snap-on connection with the outer shell.

2. The automotive electronic water pump volute sealing structure according to claim 1, characterized in that: The upper end of the volute close to the outer shell is concave to form a sealing ring groove, the sealing ring is arranged in the sealing ring groove, the upper part of the sealing ring is sealed with the groove wall of the sealing ring groove, and the lower part of the sealing ring is sealed with the outer shell.

3. The automotive electronic water pump volute sealing structure according to claim 2, characterized in that: The top edge of the housing protrudes to form a sealing ring positioning end, and the sealing ring positioning end is arranged in an annular structure. The sealing ring positioning end extends into the sealing ring groove to abut against the sealing ring.

4. The automotive electronic water pump volute sealing structure according to claim 1, characterized in that: The buckle portion has an inclined arc surface, and the inclination direction of the arc surface is that the bottom end of the buckle portion is inclined toward the upper part of the buckle portion away from the central axis of the shell.

5. The automotive electronic water pump volute sealing structure according to claim 1, characterized in that: An impeller is arranged between the outer shell and the volute, an impeller mounting groove is formed in the outer shell, an impeller positioning end is protruded on the groove wall on one side of the impeller mounting groove away from the volute, an impeller ring groove is formed between the impeller positioning end and the side groove wall of the impeller mounting groove, one end of the impeller extends into the impeller ring groove and is sleeved on the impeller positioning end, and a pressing gap is formed between the impeller and the groove wall of the impeller ring groove for the snap connection end to be separated from the snap groove.

6. The automotive electronic water pump volute sealing structure according to claim 1, characterized in that: The volute is integrally formed by injection molding.

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