Water pump and water heater

Abstract

The water pump comprises a pump body and a motor assembly, the motor assembly comprises a shielding sleeve, the shielding sleeve and the pump body are connected so that an impeller cavity can be formed between the shielding sleeve and the pump body, and shielding sleeve reinforcing ribs are arranged on the portion, surrounding the impeller cavity, of the shielding sleeve. According to the water pump, the shielding sleeve is connected to the pump body, so that connection and assembly of the motor assembly and the pump body are achieved, the impeller cavity is formed between the shielding sleeve and the pump body, and therefore the part, surrounding the impeller cavity, of the shielding sleeve bears water pressure, and the shielding sleeve reinforcing ribs are arranged at the part, surrounding the impeller cavity, of the shielding sleeve; the structural strength of the shielding sleeve can be enhanced on the premise that the material of the shielding sleeve does not need to be changed, the shielding sleeve is effectively prevented from being broken under the limiting working condition, and the reliability and stability of operation of the water pump are improved.

Description

Technical Field

[0001] The present application relates to the technical field of pumping devices, and in particular to a water pump and a water heater. Background Art

[0002] The water pump includes a pump body and a motor assembly. The motor assembly includes a shielding sleeve, an iron core component and a rotor component assembled together. The motor assembly is connected to the pump body through the shielding sleeve, so that an impeller cavity is formed between the shielding sleeve and the pump body. The impeller cavity can accommodate the impeller of the pump body. The part of the structure where the shielding sleeve surrounds the impeller cavity directly bears the water pressure. Therefore, it is necessary to ensure the structural strength of the shielding sleeve, otherwise the shielding sleeve is prone to rupture and cause the water pump to malfunction. Utility Model Content

[0003] The present application aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present application proposes a water pump.

[0004] To achieve the above-mentioned purpose, the present application discloses a water pump, which includes a pump body and a motor assembly. The motor assembly includes a shielding sleeve. The shielding sleeve and the pump body are connected to form an impeller cavity between the shielding sleeve and the pump body. The shielding sleeve is provided with shielding sleeve reinforcement ribs at the position where the shielding sleeve surrounds the impeller cavity.

[0005] In some embodiments of the present application, the motor assembly further includes a core component and a rotor component;

[0006] The shielding sleeve comprises:

[0007] a first end plate;

[0008] A first ring plate surrounds the rotation axis of the water pump, the first end plate is arranged at one end of the first ring plate, and the first end plate and the first ring plate enclose a first cavity open to the pump body, and the rotor component is rotatably arranged in the first cavity;

[0009] A second end plate, disposed at the other end of the first ring plate and surrounding the first ring plate; and

[0010] A second ring plate, arranged on the second end plate and surrounding the first ring plate, a second cavity open to the pump body is arranged between the second ring plate and the first ring plate, and the core component is arranged in the second cavity;

[0011] The first end plate, the first ring plate and the second end plate constitute the portion where the shielding sleeve surrounds the impeller cavity, and are respectively provided with the shielding sleeve reinforcement ribs.

[0012] In some embodiments of the present application, the shielding sleeve reinforcement rib includes a first reinforcement rib provided on the first end plate, the first reinforcement rib extends in the radial direction of the water pump, and a plurality of the first reinforcement ribs are arranged around the rotation axis of the water pump.

[0013] In some embodiments of the present application, the shielding sleeve reinforcement rib includes a second reinforcement rib provided on the second end plate, the second reinforcement rib extends in the radial direction of the water pump, and a plurality of the second reinforcement ribs are arranged around the rotation axis of the water pump.

[0014] In some embodiments of the present application, the shielding sleeve reinforcement ribs include a plurality of third reinforcement ribs provided on the first ring plate, the third reinforcement ribs extend along the axial direction of the water pump, and the plurality of third reinforcement ribs are arranged around the rotation axis of the water pump.

[0015] In some embodiments of the present application, one end of the third reinforcement rib is connected to the first reinforcement rib, and the other end is connected to the second reinforcement rib.

[0016] In some embodiments of the present application, the shielding sleeve reinforcement rib includes a fourth reinforcement rib surrounding the rotation axis of the water pump, and the first end plate, the first ring plate and / or the second end plate are provided with the fourth reinforcement rib.

[0017] In some embodiments of the present application, the second ring plate is not provided with the shielding sleeve reinforcement rib.

[0018] In some embodiments of the present application, the shielding sleeve reinforcement ribs are arranged on the first end plate, the first ring plate, and the second end plate on one side facing the second cavity.

[0019] In some embodiments of the present application, the first end plate, the first ring plate, the second end plate, the second ring plate and the shielding sleeve reinforcement rib are integrally formed.

[0020] In some embodiments of the present application, the water pump also includes a base, the base and the shielding sleeve are connected to enclose the second cavity, the gap of the second cavity is suitable for filling with potting glue, and the base reinforcement rib is provided on the side of the base facing the second cavity.

[0021] In some embodiments of the present application, the base reinforcement rib includes a fifth reinforcement rib and a sixth reinforcement rib, the fifth reinforcement rib extends in the radial direction of the water pump, and the sixth reinforcement rib surrounds the rotation axis of the water pump.

[0022] In some embodiments of the present application, the base reinforcement rib further includes a reinforcement column, which is protruded relative to the fifth reinforcement rib and the sixth reinforcement rib and is disposed at the intersection of the fifth reinforcement rib and the sixth reinforcement rib.

[0023] A second aspect of the present application discloses a water heater, which comprises the above-mentioned water pump.

[0024] In the technical solution of the present application, the shielding sleeve is connected to the pump body to realize the connection and assembly of the motor assembly and the pump body, and an impeller cavity is formed between the shielding sleeve and the pump body. In this way, the portion where the shielding sleeve surrounds the impeller cavity is subjected to water pressure. By providing shielding sleeve reinforcement ribs at the portion where the shielding sleeve surrounds the impeller cavity, the structural strength of the shielding sleeve can be enhanced without changing the material of the shielding sleeve, thereby effectively preventing the shielding sleeve from rupture under extreme working conditions and improving the reliability and stability of the water pump operation.

[0025] Other advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application 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 present application. For ordinary technicians in this field, other designs can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1 A schematic diagram of a water pump in some embodiments;

[0028] Figure 2 A cross-sectional view of a water pump in some embodiments;

[0029] Figure 3 An exploded view of a water pump in some embodiments;

[0030] Figure 4 A schematic diagram of the assembly of a secondary impeller, a motor assembly and a base in some embodiments;

[0031] Figure 5 for Figure 4 Exploded view of the structure shown;

[0032] Figure 6 for Figure 4 Exploded view of the structure shown (viewing angle and Figure 5 different);

[0033] Figure 7 Schematic diagram of a shielding sleeve in some embodiments;

[0034] Figure 8 Schematic diagram of shielding sleeve in some embodiments (viewing angle and Figure 7 different);

[0035] Fig. 9A cross-sectional view of a shielding sleeve in some embodiments;

[0036] Fig.10 A schematic diagram of a base in some embodiments;

[0037] Fig.11 It is a schematic diagram of assembling the shielding sleeve, the core component and the base in some embodiments;

[0038] Fig.12 It is a schematic diagram of the assembly of the pump casing (pump body), the shielding sleeve and the base in some embodiments.

[0039] Description of Figure Numbers:

[0040] Water pump 100, pump body 1000, pump cover 1100, water inlet interface 1110, pump casing 1200, water outlet interface 1120, primary cavity 1310, secondary cavity / impeller cavity 1320, primary impeller 1410, secondary impeller 1420, motor assembly 2000, shielding sleeve 2100, first cavity 2101, second cavity 2102, first end plate 2110, second end plate 2120, first ring plate 2130, second ring plate 2140, shielding sleeve reinforcement rib 2150, first reinforcement rib 2151, second reinforcement rib 2152, third reinforcement rib 2153, fourth reinforcement rib 2154, core component 2200, rotor component 2300, base 3000, base reinforcement rib 3100, fifth reinforcement rib 3110, sixth reinforcement rib 3120, reinforcement column 3130.

[0041] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0046] The present application proposes a water pump 100, combined with Figure 1 , Figure 2 , Figure 3 , Figure 8 , Fig. 9 and Fig.12 As shown, the water pump 100 includes a pump body 1000 and a motor assembly 2000. The motor assembly 2000 includes a shielding sleeve 2100. The shielding sleeve 2100 is connected to the pump body 1000 to realize the mutual connection and assembly of the motor assembly 2000 and the pump body 1000. An impeller cavity 1320 is formed between the shielding sleeve 2100 and the pump body 1000. The shielding sleeve reinforcement rib 2150 is provided at the portion of the shielding sleeve 2100 surrounding the impeller cavity 1320.

[0047] In the present embodiment, the shielding sleeve 2100 is connected to the pump body 1000 to realize the connection and assembly of the motor assembly 2000 and the pump body 1000. An impeller chamber 1320 is formed between the shielding sleeve 2100 and the pump body 1000, so that the portion of the shielding sleeve 2100 surrounding the impeller chamber 1320 is subjected to water pressure. By providing a shielding sleeve reinforcement rib 2150 at the portion of the shielding sleeve 2100 surrounding the impeller chamber 1320, the structural strength of the shielding sleeve 2100 can be enhanced without changing the material of the shielding sleeve 2100, thereby effectively preventing the shielding sleeve 2100 from rupture under extreme working conditions, and improving the reliability and stability of the operation of the water pump 100.

[0048] Specifically, the pump body 1000 includes a pump cover 1100, a pump casing 1200, a primary impeller 1410 and a secondary impeller 1420. The pump cover 1100 is connected to one side of the pump casing 1200, a primary cavity 1310 is formed between the pump cover 1100 and the pump casing 1200, and the primary impeller 1410 is rotatably disposed in the primary cavity 1310. The motor assembly 2000 is connected to the other side of the pump casing 1200, a secondary cavity 1320 is formed between the motor assembly 2000 and the pump casing 1200 (the secondary cavity 1320 is the impeller cavity 1320 formed between the shielding sleeve 2100 and the pump body 1000 mentioned above), and the secondary impeller 1420 is rotatably disposed in the secondary cavity 1320.

[0049] The connection between the motor assembly 2000 and the pump body 1000 is specifically achieved by connecting the shielding sleeve 2100 of the motor assembly 2000 and the pump housing 1200 of the pump body 1000. The motor assembly 2000 includes a rotor component 2300, a core component 2200 and a shielding sleeve 2100. The rotor component 2300 and the core component 2200 are respectively mounted on the shielding sleeve 2100. The shielding sleeve 2100 is generally made of insulating material. The core component 2200 is fixed relative to the shielding sleeve 2100, and the rotor component 2300 is rotatable relative to the shielding sleeve 2100. It can be understood that the core component 2200 has a wire winding. When the wire winding of the core component 2200 is energized, the rotor component 2300 can be driven to rotate. There are many ways to connect the shielding sleeve 2100 and the pump housing 1200, for example, bolt holes are respectively provided on the periphery of the pump housing 1200 and the shielding sleeve 2100, and the connection is achieved by passing bolts through the bolt holes. Furthermore, the pump cover 1100, the pump housing 1200, the shielding sleeve 2100 and the base 3000 described below can be respectively provided with bolt holes, and the various components are fastened together by passing bolts through the bolt holes.

[0050] After the shielding sleeve 2100 is connected to the pump casing 1200, the rotor component 2300 can cooperate with the primary impeller 1410 and the secondary impeller 1420, thereby driving the primary impeller 1410 and the secondary impeller 1420 to rotate. The cooperation between the rotor component 2300 and the primary impeller 1410 and the secondary impeller 1420 can be found in the relevant technology and will not be described in detail here. The pump cover 1100 is provided with a water inlet interface 1110, which is connected to the primary chamber 1310. The pump housing 1200 is provided with a water outlet interface 1120, which is connected to the secondary chamber 1320 (impeller chamber 1320). The motor assembly 2000 is energized to drive the rotor component 2300 to rotate, and the rotor component 2300 drives the primary impeller 1410 and the secondary impeller 1420 to rotate. Water enters the primary chamber 1310 from the water inlet interface 1110, enters the secondary chamber 1320 (impeller chamber 1320) after being pressurized by the primary impeller 1410, and is discharged from the water outlet interface 1120 after being pressurized by the secondary impeller 1420. The action of the primary impeller 1410 and the secondary impeller 1420 greatly increases the head of the water flow.

[0051] That is to say, after the first-stage impeller 1410 and the second-stage impeller 1420 have done work, the water flow pressure in the second-stage cavity 1320 (impeller cavity 1320) is greatly increased, and the water pressure will directly act on the portion where the shielding sleeve 2100 encloses the second-stage cavity 1320 (impeller cavity 1320). The so-called portion where the shielding sleeve 2100 encloses the second-stage cavity 1320 (impeller cavity 1320) means that the shielding sleeve 2100 has a corresponding structure, and the corresponding structure cooperates with the pump casing 1200 to enclose the second-stage cavity 1320 (impeller cavity 1320). The water pressure directly acts on the portion of the shielding sleeve 2100 surrounding the impeller chamber 1320. The portion of the shielding sleeve 2100 surrounding the impeller chamber 1320 is subjected to greater water pressure. In the present embodiment, shielding sleeve reinforcement ribs 2150 are provided on the portion of the shielding sleeve 2100 surrounding the impeller chamber 1320. Through the action of the shielding sleeve reinforcement ribs 2150, the structural strength of the portion of the shielding sleeve 2100 surrounding the impeller chamber 1320 can be effectively enhanced without changing the material of the shielding sleeve 2100, thereby effectively preventing the shielding sleeve 2100 from rupture.

[0052] Combination Figures 4 to 9 as well as Fig.12 As shown, in some embodiments of the present application, the shielding sleeve 2100 includes a first end plate 2110, a first ring plate 2130, a second end plate 2120 and a second ring plate 2140. The first end plate 2110, the first ring plate 2130, the second end plate 2120 and the second ring plate 2140 cooperate with each other to form a first cavity 2101 and a second cavity 2102. The first cavity 2101 is used for installing the rotor component 2300, and the second cavity 2102 is used for installing the core component 2200.

[0053] Specifically, the first end plate 2110 is generally in the shape of a plate and is perpendicular to the rotation axis of the water pump 100 (the rotation axis of the water pump 100 is the rotation axis of the rotor component 2300). One end of the first ring plate 2130 is arranged at the edge of the first end plate 2110, and the first ring plate 2130 surrounds the rotation axis of the water pump 100. The first ring plate 2130 extends in the direction of the rotation axis of the water pump 100 in a cylindrical shape. In this way, the first end plate 2110 and the first ring plate 2130 cooperate to enclose a first cavity 2101. The first cavity 2101 is 01 is open toward the pump body 1000, the rotor component 2300 is installed in the first cavity 2101 and can rotate in the first cavity 2101, the rotor component 2300 is drivingly connected to the secondary impeller 1420, and the secondary impeller 1420 is drivingly connected to the primary impeller 1410, the rotor component 2300 drives the secondary impeller 1420 to rotate, thereby driving the primary impeller 1410 to rotate through the secondary impeller 1420. Of course, there are many ways for the rotor component 2300 to drive the primary impeller 1410 and the secondary impeller 1420 to rotate, which are not limited to the aforementioned examples.

[0054] The second end plate 2120 is arranged at the other end of the first ring plate 2130, and the second end plate 2120 is roughly perpendicular to the rotation axis of the water pump 100. The second ring plate 2140 is arranged on the second end plate 2120, such as the second ring plate 2140 is arranged on the edge of the second end plate 2120 away from the first ring plate 2130, and the second ring plate 2140 extends in a cylindrical shape along the direction of the rotation axis of the water pump 100 and surrounds the first ring plate 2130, so that a second cavity 2102 is formed between the second ring plate 2140 and the first ring plate 2130, and the second cavity 2102 is open to the back of the pump body 1000.

[0055] The first cavity 2101 is open toward the pump body 1000, that is, the first cavity 2101 has a first opening toward the pump body 1000, and the second cavity 2102 is open away from the pump body 1000, that is, the second cavity 2102 has a second opening away from the pump body 1000, and the rotor component 2300 is embedded in the first cavity 2101 through the first opening of the first cavity 2101, and the core component 2200 is embedded in the second cavity 2102 along the second opening of the second cavity 2102.

[0056] In this embodiment, the first end plate 2110, the first ring plate 2130 and the second end plate 2120 constitute the portion of the shielding sleeve 2100 that surrounds the impeller chamber 1320, that is, the water flow entering the secondary chamber 1320 (impeller chamber 1320) directly applies pressure to the first end plate 2110, the first ring plate 2130 and the second end plate 2120. Therefore, the first end plate 2110, the first ring plate 2130 and the second end plate 2120 are respectively provided with the above-mentioned shielding sleeve reinforcement ribs 2150, which effectively strengthen the structural strength of the first end plate 2110, the first ring plate 2130 and the second end plate 2120. Since the first cavity 2101 is open toward the pump body 1000, that is, the first cavity 2101 constitutes a part of the secondary cavity 1320 (impeller cavity 1320), when the water pump 100 is working, water flows into the first cavity 2101, while the second cavity 2102 is open away from the pump body 1000, and it is difficult for water to enter the second cavity 2102, resulting in damage to electrical components such as the core component 2200.

[0057] Combination Figure 8 and Fig. 9 As shown, in some embodiments of the present application, the shielding sleeve reinforcement rib 2150 includes a first reinforcement rib 2151, which is disposed on the first end plate 2110, and extends a certain length along the radial direction of the water pump 100, and the number of the first reinforcement ribs 2151 is multiple (multiple means two or more, the same below), and the multiple first reinforcement ribs 2151 are distributed around the rotation axis of the water pump 100.

[0058] For example Figure 8 As shown, there are nine first reinforcing ribs 2151 on the first end plate 2110, and the nine first reinforcing ribs 2151 are distributed around the rotation axis of the water pump 100. There is a certain angle between adjacent first reinforcing ribs 2151, so that the nine first reinforcing ribs 2151 are radial with respect to the rotation axis of the water pump 100. Since the first end plate 2110 is arranged at one end of the first ring plate 2130, the first end plate 2110 is basically perpendicular to the rotation axis of the water pump 100. Through such an arrangement of the first reinforcing ribs 2151, the nine first reinforcing ribs 2151 are evenly distributed on the first end plate 2110, thereby facilitating the uniform improvement of the structural strength at different positions on the first end plate 2110.

[0059] Similar to the first end plate 2110, continue to combine Figure 8 and Fig. 9As shown, in some embodiments of the present application, the shielding sleeve reinforcement rib 2150 includes a second reinforcement rib 2152, and the second reinforcement rib 2152 is arranged on the second end plate 2120. Along the radial direction of the water pump 100, the second reinforcement rib 2152 has a certain length, and the number of the second reinforcement ribs 2152 is multiple, and the multiple second reinforcement ribs 2152 are distributed around the rotation axis of the water pump 100.

[0060] It can be understood that the extension direction of the rotation axis of the water pump 100 is the axial direction, and the radial direction is the direction passing through the rotation axis and perpendicular to the rotation axis. There are multiple second reinforcing ribs 2152 on the second end plate 2120, and the multiple second reinforcing ribs 2152 are distributed around the rotation axis of the water pump 100. There is a certain angle between adjacent second reinforcing ribs 2152, so that the multiple second reinforcing ribs 2152 are radial relative to the rotation axis of the water pump 100. Such an arrangement is conducive to the uniform distribution of the multiple second reinforcing ribs 2152 on the second end plate 2120, so that the structural strength of different positions on the second end plate 2120 is uniformly improved.

[0061] Continue to combine Figure 8 and Fig. 9 As shown, in some embodiments of the present application, the shielding sleeve reinforcement rib 2150 also includes a third reinforcement rib 2153, the third reinforcement rib 2153 is arranged on the first ring plate 2130, and the third reinforcement rib 2153 extends along the axial direction of the water pump 100, the number of the third reinforcement ribs 2153 is multiple, and the multiple third reinforcement ribs 2153 are distributed around the rotation axis of the water pump 100.

[0062] In this embodiment, unlike the first reinforcing rib 2151 and the second reinforcing rib 2152, the third reinforcing rib 2153 extends along the axial direction of the water pump 100. This is because the first ring plate 2130 needs to cooperate with the first end plate 2110 to enclose the first cavity 2101, and the rotor component 2300 needs to rotate in the first cavity 2101. Therefore, the first ring plate 2130 is cylindrical as a whole. The third reinforcing rib 2153 extending along the axial direction can effectively strengthen the structural strength of the first ring plate 2130 in the axial direction of the water pump 100. Then, multiple third reinforcing ribs 2153 are arranged around the rotation axis of the water pump 100, so that the multiple third reinforcing ribs 2153 can be evenly distributed, thereby effectively providing the structural strength of the first ring plate 2130.

[0063] Furthermore, combined with Figure 8As shown, in some embodiments of the present application, one end of the third reinforcing rib 2153 is connected to the second reinforcing rib 2152, and the other end of the third reinforcing rib 2153 is connected to the first reinforcing rib 2151. It can be understood that one end of the third reinforcing rib 2153 is connected to the second reinforcing rib 2152, that is, the third reinforcing rib 2153 and the second reinforcing rib 2152 are integrated, and the other end of the third reinforcing rib 2153 is connected to the first reinforcing rib 2151, that is, the third reinforcing rib 2153 and the first reinforcing rib 2151 are integrated, that is, the first reinforcing rib 2151, the second reinforcing rib 2152 and the third reinforcing rib 2153 are integrated. For example, the shielding sleeve reinforcing rib 2150, the second ring plate 2140, the second end plate 2120, the first ring plate 2130 and the first end plate 2110 are integrally formed, so that the first reinforcing rib 2151, the second reinforcing rib 2152 and the third reinforcing rib 2153 form an integrated structure, further enhancing the structural strength of the shielding sleeve 2100.

[0064] In addition, as described above, through the arrangement of the first end plate 2110, the first ring plate 2130 and the second end plate 2120, a corner is formed between the first end plate 2110 and the first ring plate 2130, and a corner is formed between the first ring plate 2130 and the second end plate 2120. The first reinforcing rib 2151, the second reinforcing rib 2152 and the third reinforcing rib 2153 are integrated into one body, which can further enhance the structural strength between the first end plate 2110, the first ring plate 2130 and the second end plate 2120, and more effectively strengthen the supporting effect of the corner between the first end plate 2110 and the first ring plate 2130, and the corner between the first ring plate 2130 and the second end plate 2120, thereby effectively avoiding cracks at the corner positions.

[0065] Combination Figure 8 and Fig. 9 As shown, in some embodiments of the present application, the shielding sleeve reinforcement rib 2150 also includes a fourth reinforcement rib 2154, the fourth reinforcement rib 2154 surrounds the rotation axis of the water pump 100, and the first end plate 2110, the second end plate 2120 and / or the first ring plate 2130 are respectively provided with the fourth reinforcement rib 2154. Through the action of the fourth reinforcement rib 2154, the structural strength of the shielding sleeve 2100 can be further improved.

[0066] For example, see Figure 8As shown, the first end plate 2110 and the second end plate 2120 are respectively provided with fourth reinforcing ribs 2154, wherein the first end plate 2110 is provided with two fourth reinforcing ribs 2154, wherein one fourth reinforcing rib 2154 surrounds the other fourth reinforcing rib 2154, and since the fourth reinforcing rib 2154 surrounds the rotation axis of the water pump 100, and the first reinforcing rib 2151 extends along the radial direction of the water pump 100, the fourth reinforcing rib 2154 intersects with the first reinforcing rib 2151, and through the intersecting first reinforcing rib 2151 and fourth reinforcing rib 2154, the fourth reinforcing rib 2154 can strengthen the structural strength of the position between the adjacent first reinforcing ribs 2151. Similarly, the second end plate 2120 is also provided with fourth reinforcing ribs 2154, and the fourth reinforcing rib 2154 intersects with the third reinforcing rib 2153.

[0067] It can be understood that the first end plate 2110 and the second end plate 2120 are basically perpendicular to the rotation axis of the water pump 100, while the first ring plate 2130 is parallel to the rotation axis of the water pump 100. The first end plate 2110 and the second end plate 2120 are impacted by the water flow more than the first ring plate 2130. Therefore, the first ring plate 2130 may not be provided with the fourth reinforcing rib 2154, and the fourth reinforcing rib 2154 may only be provided on the first end plate 2110 and the second end plate 2120. This can not only ensure the structural strength of the shielding sleeve 2100, but also reduce the amount of material used.

[0068] Combination Figure 8 As shown, in some embodiments of the present application, the second ring plate 2140 is not provided with the shielding sleeve reinforcement rib 2150, that is, the second ring plate 2140 has a relatively smooth surface. Since the shielding sleeve 2100 directly bears the water pressure through the portion surrounding the impeller chamber 1320 (the first end plate 2110, the first ring plate 2130 and the second end plate 2120), and the second ring plate 2140 does not need to directly bear the water pressure, there is no need to provide the shielding sleeve reinforcement rib 2150 on the second ring plate 2140, and the shielding sleeve reinforcement rib 2150 is only provided on the portion of the shielding sleeve 2100 surrounding the impeller chamber 1320. This can not only ensure the structural strength of the shielding sleeve 2100, but also reduce the amount of material used.

[0069] Combination Figure 8 and Fig. 9As shown, in some embodiments of the present application, the shielding sleeve reinforcement rib 2150 is arranged on the side of the first end plate 2110, the first ring plate 2130 and the second end plate 2120 facing the second cavity 2102. It can be understood that the side of the first end plate 2110, the first ring plate 2130 and the second end plate 2120 facing the pump body 1000 directly contacts the water flow. If the shielding sleeve reinforcement rib 2150 is arranged on the side of the first end plate 2110, the first ring plate 2130 and the second end plate 2120 facing the pump body 1000, the flow of the water flow will be disturbed, and since the rotor component 2300 is arranged in the first cavity 2101, the shielding sleeve reinforcement rib 2150 will also affect the rotation of the rotor component 2300. To this end, by setting the shielding sleeve reinforcement rib 2150 on the side of the first end plate 2110, the first ring plate 2130 and the second end plate 2120 facing the second cavity 2102, the structural strength of the shielding sleeve 2100 can be improved without affecting the flow of water and the rotation of the rotor component 2300.

[0070] Combination Fig.10 and Fig.11 As shown, in some embodiments of the present application, the water pump 100 also includes a base 3000, and the base 3000 is connected to the shielding sleeve 2100. Specifically, the base 3000 is connected to the side of the shielding sleeve 2100 facing away from the pump body 100, so that the base 3000 encloses the second cavity 2102, and a base reinforcement rib 3100 is provided on the side of the base 3000 facing the second cavity 2102.

[0071] Specifically, when the core component 2200 is installed in the second cavity 2102, it does not occupy the entire space of the second cavity 2102. The unoccupied portion of the second cavity 2102 forms a gap. In this embodiment, the gap in the second cavity 2102 is filled with potting glue (potting glue such as epoxy resin) so that the potting glue can contact the shielding sleeve 2100, the core component 2200 and the base 3000 to achieve rapid heat dissipation. The water pump 100 can be installed in the target area through the base 3000.

[0072] In this embodiment, by providing a base reinforcement rib 3100 on the base 3000, in the process of filling the potting glue in the gap toward the second cavity 2102, the contact area between the potting glue and the base 3000 can be increased to enhance the adhesion effect, so that the potting glue is not easy to separate from the base 3000, that is, after the potting glue solidifies, it is not easy to form bubbles between the base 3000 and the core component 2200, and based on the effect of the base reinforcement rib 3100, the structural strength of the entire base 3000 is also greatly improved, so that the base 3000 can better support the shielding cover 2100 and the core component 2200, which is beneficial to improve the water flow impact resistance of the shielding cover 2100 and effectively avoid the rupture of the shielding cover 2100.

[0073] Specifically, the base reinforcement rib 3100 includes a fifth reinforcement rib 3110 and a sixth reinforcement rib 3120, wherein the fifth reinforcement rib 3110 extends along the radial direction of the water pump 100, and the sixth reinforcement rib 3120 surrounds the rotation axis of the water pump 100, so that the fifth reinforcement rib 3110 and the sixth reinforcement rib 3120 form a staggered structure. Since the base 3000 encloses the second cavity 2102, the base 3000 is basically axially pressurized, and the staggered fifth reinforcement rib 3110 and the sixth reinforcement rib 3120 are similar to the staggered first reinforcement rib 2151 and the fourth reinforcement rib 2154, which greatly improve the structural strength of the base 3000.

[0074] Continue to combine Fig.10 and Fig.11 As shown, in some embodiments of the present application, the base reinforcement rib 3100 further includes a reinforcement column 3130, which is substantially convexly arranged relative to the fifth reinforcement rib 3110 and the sixth reinforcement rib 3120 in the axial direction. The arrangement of the reinforcement column 3130 further increases the contact area between the base 3000 and the potting glue, thereby further increasing the adhesion between the base 3000 and the potting glue, and maximally avoiding the formation of bubbles between the core component 2200 and the base 3000. In addition, the reinforcement column 3130 can also be arranged at the intersection of the fifth reinforcement rib 3110 and the sixth reinforcement rib 3120, and the fifth reinforcement rib 3110 and the sixth reinforcement rib 3120 can strengthen the support for the reinforcement column 3130, thereby preventing the reinforcement column 3130 from breaking when the motor assembly 2000 is impacted by water flow.

[0075] The present application also discloses a water heater, for example, the water heater is a gas water heater, the water heater includes a water pump 100, and the water flow is pressurized by setting the water pump 100, the water pump 100 includes a pump body 1000 and a motor assembly 2000, the motor assembly 2000 includes a shielding sleeve 2100, the shielding sleeve 2100 is connected to the pump body 1000 to achieve mutual connection and assembly of the motor assembly 2000 and the pump body 1000, an impeller cavity 1320 is formed between the shielding sleeve 2100 and the pump body 1000, and a shielding sleeve reinforcement rib 2150 is provided at the portion of the shielding sleeve 2100 surrounding the impeller cavity 1320.

[0076] The shielding sleeve 2100 is connected to the pump body 1000 to realize the connection and assembly of the motor assembly 2000 and the pump body 1000. An impeller cavity 1320 is formed between the shielding sleeve 2100 and the pump body 1000, so that the portion of the shielding sleeve 2100 surrounding the impeller cavity 1320 is subjected to water pressure. By providing the shielding sleeve reinforcing rib 2150 at the portion of the shielding sleeve 2100 surrounding the impeller cavity 1320, the structural strength of the shielding sleeve 2100 can be enhanced without changing the material of the shielding sleeve 2100, effectively preventing the shielding sleeve 2100 from rupture under extreme working conditions, and improving the reliability and stability of the operation of the water pump 100. It can be understood that the water pump 100 of the water heater adopts the technical solution of the above embodiment, and therefore has at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0077] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made based on the concept of the present application and the contents of the present application description and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A water pump (100), characterized in that: The water pump (100) comprises a pump body (1000) and a motor assembly (2000); the motor assembly (2000) comprises a shielding sleeve (2100); the shielding sleeve (2100) and the pump body (1000) are connected to form an impeller cavity (1320) between the shielding sleeve (2100) and the pump body (1000); a shielding sleeve reinforcing rib (2150) is provided at a portion of the shielding sleeve (2100) surrounding the impeller cavity (1320).

2. The water pump (100) according to claim 1, characterized in that: The motor assembly (2000) further comprises a core component (2200) and a rotor component (2300); The shielding sleeve (2100) comprises: A first end plate (2110); A first ring plate (2130) surrounds the rotation axis of the water pump (100); the first end plate (2110) is disposed at one end of the first ring plate (2130) to enclose a first cavity (2101) open toward the pump body (1000) with the first ring plate (2130); and the rotor component (2300) is rotatably disposed in the first cavity (2101); A second end plate (2120) is disposed at the other end of the first ring plate (2130) and surrounds the first ring plate (2130); and a second ring plate (2140) disposed on the second end plate (2120) and surrounding the first ring plate (2130); a second cavity (2102) open to the back of the pump body (1000) is disposed between the second ring plate (2140) and the first ring plate (2130); and the core component (2200) is disposed in the second cavity (2102); The first end plate (2110), the first ring plate (2130) and the second end plate (2120) constitute a portion of the shielding sleeve (2100) surrounding the impeller chamber (1320), and are respectively provided with the shielding sleeve reinforcement ribs (2150).

3. The water pump (100) according to claim 2, characterized in that: The shielding sleeve reinforcement rib (2150) comprises a first reinforcement rib (2151) provided on the first end plate (2110), the first reinforcement rib (2151) extending in the radial direction of the water pump (100), and a plurality of the first reinforcement ribs (2151) are arranged around the rotation axis of the water pump (100); And / or, the shielding sleeve reinforcement rib (2150) comprises a second reinforcement rib (2152) provided on the second end plate (2120), the second reinforcement rib (2152) extending in the radial direction of the water pump (100), and a plurality of the second reinforcement ribs (2152) are arranged around the rotation axis of the water pump (100); And / or, the shielding sleeve reinforcement rib (2150) includes a plurality of third reinforcement ribs (2153) provided on the first ring plate (2130), the third reinforcement ribs (2153) extending along the axial direction of the water pump (100), and the plurality of third reinforcement ribs (2153) are arranged around the rotation axis of the water pump (100).

4. The water pump (100) according to claim 3, characterized in that: One end of the third reinforcing rib (2153) is connected to the first reinforcing rib (2151), and the other end is connected to the second reinforcing rib (2152).

5. The water pump (100) according to claim 2, characterized in that: The shielding sleeve reinforcement rib (2150) includes a fourth reinforcement rib (2154) surrounding the rotation axis of the water pump (100), and the first end plate (2110), the first ring plate (2130) and / or the second end plate (2120) are provided with the fourth reinforcement rib (2154).

6. The water pump (100) according to claim 2, characterized in that: The second ring plate (2140) is not provided with the shielding sleeve reinforcement rib (2150).

7. The water pump (100) according to claim 2, characterized in that: The shielding sleeve reinforcement rib (2150) is arranged on the first end plate (2110), the first ring plate (2130) and the second end plate (2120) on one side facing the second cavity (2102).

8. The water pump (100) according to claim 2, characterized in that: The first end plate (2110), the first ring plate (2130), the second end plate (2120), the second ring plate (2140) and the shielding sleeve reinforcement rib (2150) are integrally formed.

9. The water pump (100) according to claim 2, characterized in that: The water pump (100) further comprises a base (3000), wherein the base (3000) and the shielding sleeve (2100) are connected to enclose the second cavity (2102), a gap of the second cavity (2102) is suitable for being filled with potting glue, and a base reinforcing rib (3100) is provided on a side of the base (3000) facing the second cavity (2102).

10. The water pump (100) according to claim 9, characterized in that: The base reinforcement rib (3100) comprises a fifth reinforcement rib (3110) and a sixth reinforcement rib (3120), wherein the fifth reinforcement rib (3110) extends in the radial direction of the water pump (100), and the sixth reinforcement rib (3120) surrounds the rotation axis of the water pump (100).

11. The water pump (100) according to claim 10, characterized in that: The base reinforcement rib (3100) further includes a reinforcement column (3130), wherein the reinforcement column (3130) is protruded relative to the fifth reinforcement rib (3110) and the sixth reinforcement rib (3120), and is disposed at the intersection of the fifth reinforcement rib (3110) and the sixth reinforcement rib (3120).

12. A water heater, characterized in that: The water pump (100) comprises the water pump (100) as claimed in any one of claims 1 to 11.

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