Water pump with novel structure

Abstract

A shell comprises a side wall part and a liquid flow channel part arranged on the inner periphery of the side wall part, the side wall part is connected with a water inlet connector and a water outlet connector, and a first connecting groove and a second connecting groove which are arranged in the circumferential direction are formed in the two ends of the side wall part in the height direction correspondingly; a cavity part communicated to the water inlet connector is arranged between the side wall part and the liquid flow channel part, and the water outlet connector is communicated to the liquid flow channel part; the bracket is arranged between the liquid flow channel part and the second end cover; the stator core assembly is arranged between the support and the second end cover. The circuit board assembly is arranged between the bracket and the second end cover and is electrically connected with the stator iron core assembly; the impeller assembly is rotationally arranged on the support and located in the liquid flow channel part. The first glue pouring fixing body is arranged in the first connecting groove and is used for fixedly connecting the first end cover with the shell; the second glue pouring fixing body is arranged in the second connecting groove and used for fixedly connecting the second end cover, the support and the shell. The water pump is simple in structure, and the sealing performance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water pumps, in particular to a new structure water pump. BACKGROUND

[0002] At present, the thickness of water pumps on the market is very large, and it is difficult to use in small space equipment after being thinned. The common structure is also combined with the upper and lower, and the rubber ring seal is easy to age, the locking screw compression structure is easy to deform to cause water leakage, and the assembly is difficult, the assembly time is high, and there is a risk of water leakage and seepage. SUMMARY

[0003] Based on the above problems, the purpose of the present application is to provide a new structure water pump, which is simple to assemble, has good sealing performance and corrosion resistance.

[0004] In order to overcome the shortcomings of the prior art, the technical scheme provided by the present application is:

[0005] A new structure water pump comprises:

[0006] A housing comprising a side wall portion and a liquid flow passage portion provided in the inner periphery of the side wall portion, the side wall portion being connected with a water inlet joint and a water outlet joint, the side wall portion being provided with a first connecting groove and a second connecting groove arranged in the circumferential direction at both ends in the height direction respectively, the side wall portion and the liquid flow passage portion being a cavity portion communicated to the water inlet joint, and the water outlet joint being communicated to the liquid flow passage portion;

[0007] A first end cover fixed in the first connecting groove;

[0008] A second end cover fixed in the second connecting groove;

[0009] A bracket provided between the liquid flow passage portion and the second end cover;

[0010] A stator core assembly provided between the bracket and the second end cover;

[0011] A circuit board assembly provided between the bracket and the second end cover and electrically connected with the stator core assembly;

[0012] An impeller assembly rotationally provided on the bracket and located inside the liquid flow passage portion;

[0013] A first glue filling fixing body provided in the first connecting groove for fixedly connecting the first end cover with the housing;

[0014] A second glue filling fixing body provided in the second connecting groove for fixedly connecting the second end cover, the bracket and the housing.

[0015] In one of the embodiments, the bracket comprises a first supporting part recessed from the first end cover to the second end cover, a second supporting part arranged at the periphery of the first supporting part and protruding to the first end cover, a third supporting part arranged at one side of the second supporting part and abutting against the second end cover, a fourth supporting part arranged at the other side of the second supporting part and protruding to the first end cover, and a fifth supporting part connecting the second supporting part and the fourth supporting part.

[0016] The impeller assembly is installed in a first accommodating cavity formed by the first supporting part, the stator core assembly is installed in a second accommodating cavity formed by the second supporting part, the circuit board assembly is installed in a third accommodating cavity formed by the fourth supporting part, and the fifth supporting part is provided with a plurality of wire grooves for the wires to pass through.

[0017] In one of the embodiments, the outer end of the third supporting part is bent and limited on a limiting step on the shell and connected with the second glue filling fixing body.

[0018] In one of the embodiments, the outer end of the fourth supporting part abuts on the second end cover and the side part is connected with the second glue filling fixing body.

[0019] In one of the embodiments, a mandrel is fixed in the first accommodating cavity of the first supporting part, and the impeller assembly is supported on the mandrel through a bearing.

[0020] In one of the embodiments, a mandrel positioning table is arranged in the first accommodating cavity, and the mandrel is fixedly connected with the mandrel positioning table.

[0021] In one of the embodiments, the impeller assembly comprises an impeller and a magnet fixed on the inner periphery of the impeller, and the impeller cover is arranged at the periphery of the second supporting part.

[0022] In one of the embodiments, a plurality of reinforcing ribs are connected between the liquid flow channel part and the side wall part.

[0023] In one of the embodiments, the first end cover comprises a first cover body and a first fixing leg arranged at the periphery of the first cover body, and the first fixing leg extends into the first connecting groove and is fixedly connected with the first glue filling fixing body.

[0024] In one of the embodiments, the second end cover comprises a second cover body and a second fixing leg arranged at the periphery of the second cover body, and the second fixing leg extends into the second connecting groove and is fixedly connected with the second glue filling fixing body.

[0025] Compared with the prior art, the advantages of the present application are:

[0026] 1. The glue sealing technology of two end covers is adopted, the rubber sealing ring and fixing screw are not needed to be arranged, the structure of the water pump is simplified, the sealing performance of the water pump is improved, and the service life of the water pump is improved;

[0027] 2. The support structure is adopted, the stator core assembly, the circuit board assembly and the impeller assembly are arranged in zones, and the compactness and stability of the structure are improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 It is a structural schematic diagram of a new structure water pump embodiment of the present application;

[0030] Figure 2 It is a disassembled structural schematic diagram of the embodiment of the present application;

[0031] Figure 3 It is one of the structural schematic diagrams of the shell in the embodiment of the present application;

[0032] Figure 4 It is the second structural schematic diagram of the shell in the embodiment of the present application;

[0033] Figure 5 It is one of the structural schematic diagrams of the support in the embodiment of the present application;

[0034] Figure 6 It is the second structural schematic diagram of the support in the embodiment of the present application;

[0035] Figure 7 It is the third structural schematic diagram of the support in the embodiment of the present application;

[0036] Among them:

[0037] 1. The shell; 1-1, the outer side wall; 1-2, the inner side wall; 1-3, the first connecting groove; 1-4, the second connecting groove; 1-5, the liquid flow passage part; 1-6, the water inlet joint; 1-7, the water outlet joint; 1-8, the reinforcing rib;

[0038] 2. The first end cover; 2-1, the first cover body; 2-2, the first fixing foot;

[0039] 3. The second end cover; 3-1, the second end cover; 3-2, the second fixing foot;

[0040] 4, support; 4-1, first support part; 4-1a, first accommodating cavity; 4-2, second support part; 4-2a, second accommodating cavity; 4-3, third support part; 4-4, fourth support part; 4-4a, third accommodating cavity; 4-5, fifth support part; 4-6, mandrel positioning table;

[0041] 5, stator core assembly; 5-1, stator core; 5-2, stator winding;

[0042] 6, impeller assembly; 6-1, impeller; 6-2, magnet;

[0043] 7, circuit board assembly;

[0044] 8, mandrel;

[0045] 9, bearing;

[0046] 10, first glue filling fixing body;

[0047] 11, second glue filling fixing body. DETAILED DESCRIPTION

[0048] The above scheme will be further described in combination with specific examples. It should be understood that these examples are used to illustrate the present application and do not limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the specific conditions of the manufacturer, and the implementation conditions not mentioned are usually the conditions in the conventional experiments.

[0049] Reference Figure 1 and Figure 2 is a structural schematic diagram of an embodiment of the present application, and provides a new structure water pump, which comprises a shell 1, a first end cover 2, a second end cover 3, a first glue filling fixing body 10, a second glue filling fixing body 11, and a support 4, a stator core assembly 5, a circuit board assembly 7, and an impeller assembly 6 arranged in the shell 1, wherein the first glue filling fixing body 10 is fixedly connected with the first end cover 2 and the shell 1, and the second glue filling fixing body 11 is fixedly connected with the second end cover 3, the support 4 and the shell 1.

[0050] As shown in Figure 3 and Figure 4 , the shell 1 comprises a side wall part and a liquid flow channel part 1-5 arranged in the inner periphery of the side wall part, the water inlet connector 1-6 and the water outlet connector 1-7 are respectively connected to the opposite ends of the side wall part, the first connecting groove 1-3 and the second connecting groove 1-4 are respectively arranged in the circumferential direction at the two ends of the side wall part in the height direction, the cavity part is communicated to the water inlet connector 1-6 between the side wall part and the liquid flow channel part 1-5, and the water outlet connector 1-7 is communicated to the liquid flow channel part 1-5.

[0051] The side wall part comprises an outer side wall 1-1 and an inner side wall 1-2, the first connecting groove 1-3 and the second connecting groove 1-4 are arranged between the outer side wall 1-1 and the inner side wall 1-2, and are both recesses with the end part of the side wall part recessed to the middle part, and the first connecting groove 1-3 and the second connecting groove 1-4 are separated from each other.

[0052] In order to improve the stability of the structure, a plurality of reinforcing ribs 1-8 are connected between the liquid flow channel part 1-5 and the inner side wall 1-2.

[0053] The first end cover 2 is fixed in the first connecting groove 1-3 and comprises a first cover body 2-1 and a first fixing leg 2-2 arranged on the outer periphery of the first cover body 2-1, the first fixing leg 2-2 extends into the first connecting groove 2-1 and is connected with the first glue pouring fixing body 10. In order to improve the compactness of the structure, the height of the inner side wall 1-2 of the side wall part is smaller than that of the outer side wall 1-1, so that the first cover body 2-1 is overlapped on the inner side wall 1-2, and the outer end surface of the first cover body 2-1 is flush with the outer side wall 1-1.

[0054] The second end cover 3 is fixed in the second connecting groove 1-4 and comprises a second cover body 3-1 and a second fixing leg 3-2 arranged on the outer periphery of the second cover body 3-1, the second fixing leg 3-2 extends into the second connecting groove 1-4 and is connected with the second glue pouring fixing body 11, and the outer end surface of the second cover body 3-1 is flush with the outer side wall 1-1.

[0055] The bracket 4 is arranged between the liquid flow channel part 1-5 and the second end cover 3, as shown in the figure, comprising a first support part 4-1 recessed from the first end cover 2 to the second end cover 3, a second support part 4-2 arranged on the outer periphery of the first support part 4-1 and protruding to the first end cover 2, a third support part 4-3 arranged on one side of the second support part 4-2 and abutting against the second end cover 3, a fourth support part 4-4 arranged on the other side of the second support part 4-2 and protruding to the first end cover 2, and a fifth support part 4-5 connecting the second support part 4-2 and the fourth support part 4-4. Figures 5 to 7 The impeller assembly 6 is installed in the first accommodating cavity 4-1a formed by the first support part 4-1, the stator core assembly 5 is installed in the second accommodating cavity 4-2a formed by the second support part 4-2, the circuit board assembly 7 is installed in the third accommodating cavity 4-4a formed by the fourth support part 4-4, and the fifth support part 4-5 is provided with a plurality of wire grooves for the wires to pass through, so that the impeller assembly 6, the stator core assembly 5 and the circuit board assembly 7 are installed in different zones, and the compactness and stability of the structure are improved.

[0056]

[0057] ​In order to improve the compactness of the structure, the outer end of the third support part 4-3 is bent and limited on the limiting step of the inner side wall 1-2 and connected with the second glue filling fixing body 11. The outer end of the fourth support part 4-4 abuts on the second end cover 2 and the side part is connected with the second glue filling fixing body 11. Preferably, the outer periphery of the fourth support part 4-4 abuts between the liquid flow channel part 1-4 and the inner side wall 1-2, so as to improve the compactness and stability of the structure.

[0058] The impeller assembly 6 is rotatably arranged on the support 4 and located in the liquid flow channel part 1-5, which comprises an impeller 6-1 and a magnet 6-2 fixed on the inner periphery of the impeller 6-1. A core shaft 8 is fixed in the first accommodating cavity 4-1a of the first support part 4-1. The impeller 6-1 is rotatably supported on the core shaft 8 through a bearing 9 and covers the outer periphery of the second support part 4-2. Specifically, a core shaft positioning table 4-6 is arranged in the first accommodating cavity 4-1a, and the core shaft 8 is fixedly connected with the core shaft positioning table 4-6. In order to improve the stability of the structure, a plurality of reinforcing connecting pieces are arranged between the core shaft positioning table 4-6 and the first accommodating cavity 4-1a.

[0059] The stator core assembly 5 is arranged between the support 4 and the second end cover 3, which comprises a stator core 5-1 and a stator winding 5-2 arranged on the stator core 5-1. The stator core assembly 5 is installed in the second accommodating cavity 4-2a formed by the second support part 4-2. In this way, the stator core assembly 5 is arranged correspondingly with the magnet 6-2. The magnetic field generated by energizing the stator core assembly 5 can drive the impeller 6-1 to rotate, so as to bring the fluid into the liquid flow channel part 1-5 through the water inlet joint 1-6 and then discharge it through the water outlet joint 1-7.

[0060] The circuit board assembly 7 is arranged between the support 4 and the second end cover 3 and electrically connected with the stator core assembly 5. The circuit board assembly 7 is connected to the external circuit by wires and the stator winding 5-2 and the power supply, so as to realize the connection between the stator winding 5-2 and the external circuit. Correspondingly, the through slots for the wires to pass through are arranged on the shell 1 and the support 4 respectively, so that the circuit board assembly 7 is connected to the external control circuit.

[0061] The first glue filling fixing body 10 is arranged in the first connecting groove 1-3 and obtained by injecting and naturally curing the commonly used potting glue into the first connecting groove 1-3. The second glue filling fixing body 11 is arranged in the second connecting groove 1-4 and obtained by injecting and naturally curing the commonly used potting glue into the second connecting groove 1-4. The commonly used potting glue includes epoxy resin potting glue, organic silicon resin potting glue, polyurethane potting glue, etc., which can be selected according to the needs.

[0062] In the installation, the stator core assembly 5 is installed in the second accommodating cavity 4-2a, the circuit board assembly 7 is installed in the third accommodating cavity 4-4a, the connecting wires are connected, the support 4 is placed on the second end cover 3, the impeller assembly 6 is installed on the mandrel 8 in the first accommodating cavity 4-1a, then the liquid flow channel part 1-5 of the shell 1 is covered outside the impeller assembly 6, the first end cover 2 is placed in the first connecting groove 1-3, the potting glue is poured into the first connecting groove 1-3, after the potting glue is naturally solidified to form the first glue-potted fixing body 10, the shell 1 is turned over, the potting glue is injected into the second connecting groove 1-4, and the second glue-potted fixing body 11 is obtained after natural solidification.

[0063] In summary, the water pump is simple and compact in structure, the production process is simplified, the production efficiency is improved, and the sealing performance of the product is improved.

[0064] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable the person skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent transformation or modification according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A new structure water pump, characterized in that, The application relates to a shell, a first end cover, a second end cover, a support, a stator core assembly, a circuit board assembly, and an impeller assembly. The shell comprises a side wall part and a liquid flow channel part arranged in the periphery of the side wall part, the side wall part is connected with a water inlet joint and a water outlet joint, the side wall part is respectively provided with a first connecting groove and a second connecting groove arranged in the circumferential direction at the two ends in the height direction, a cavity part is arranged between the side wall part and the liquid flow channel part and is communicated with the water inlet joint, and the water outlet joint is communicated with the liquid flow channel part; The first end cover is fixed in the first connecting groove; The second end cover is fixed in the second connecting groove; The support is arranged between the liquid flow channel part and the second end cover; The stator core assembly is arranged between the support and the second end cover; The circuit board assembly is arranged between the support and the second end cover and is electrically connected with the stator core assembly; The impeller assembly is rotatably arranged on the support and is located in the interior of the liquid flow channel part; The first glue filling fixing body is arranged in the first connecting groove and is used for fixedly connecting the first end cover with the shell; The second glue filling fixing body is arranged in the second connecting groove and is used for fixedly connecting the second end cover, the support and the shell.

2. The new construction water pump according to claim 1, characterized in that: The support comprises a first supporting part recessed from the first end cover to the second end cover, a second supporting part arranged in the periphery of the first supporting part and protruding from the first end cover, a third supporting part arranged on one side of the second supporting part and abutting against the second end cover, a fourth supporting part arranged on the other side of the second supporting part and protruding from the first end cover, and a fifth supporting part connecting the second supporting part with the fourth supporting part; The impeller assembly is arranged in a first accommodating cavity formed by the first supporting part, the stator core assembly is arranged in a second accommodating cavity formed by the second supporting part, the circuit board assembly is arranged in a third accommodating cavity formed by the fourth supporting part, and a plurality of wire grooves are arranged on the fifth supporting part and are used for passing wires.

3. The new construction water pump according to claim 2, characterized in that: The outer end of the third supporting part is bent and is limited on a limiting step on the shell and is connected with the second glue filling fixing body.

4. The new construction water pump according to claim 2, characterized in that: The outer end of the fourth supporting part abuts against the second end cover and the side part is connected with the second glue filling fixing body.

5. The new construction water pump according to claim 2, characterized in that: A core shaft is fixed in the first accommodating cavity of the first supporting part, and the impeller assembly is supported on the core shaft through a bearing.

6. The new construction water pump according to claim 5, characterized in that: A core shaft positioning table is arranged in the first accommodating cavity, and the core shaft is fixedly connected with the core shaft positioning table.

7. The new construction water pump according to claim 5, characterized in that: The impeller assembly comprises an impeller and a magnet fixed in the periphery of the impeller, and the impeller is arranged in the periphery of the second supporting part.

8. The new construction water pump of claim 1, wherein: A plurality of reinforcing ribs are arranged between the liquid flow channel part and the side wall part.

9. The new construction water pump of claim 1, wherein: The first end cover comprises a first cover body and a first fixing leg arranged in the periphery of the first cover body, and the first fixing leg extends into the first connecting groove and is fixedly connected with the first glue filling fixing body.

10. The new construction water pump of claim 1, wherein: The second end cover comprises a second cover body and a second fixing leg arranged in the periphery of the second cover body, and the second fixing leg extends into the second connecting groove and is fixedly connected with the second glue filling fixing body.

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