Permanent magnet shield pump

Abstract

The utility model belongs to the technical field of water pump equipment, and particularly relates to a permanent magnet shield pump. The rear shell comprises a main body and a footstand plate, the main body is configured to be mutually butted and buckled with the front cover along the front-back direction, the footstand plate is positioned at the bottom of the rear shell and is used for supporting a whole body after the front cover and the rear shell are mutually butted, and the bottom of the main body is connected with the footstand plate; the main body is in a column shape extending in the front-back direction, and a square notch with a backward opening is formed in the bottom of the main body. According to the permanent magnet shielding pump, the cylindrical structural design is adopted for the main body, the square notch with the backward opening in the bottom of the main body can enable the flowing direction of internal stress of the rear shell to be changed when the rear shell is poured, then the rear shell can counteract part of stress automatically, and it is guaranteed that the overall structure of the rear shell does not deform.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pump equipment, in particular to a permanent magnet shielded pump. Background Art

[0002] A permanent magnet canned motor pump is a specially designed pump that utilizes magnetic drive to achieve contactless fluid transmission. The key feature of this pump is that there is no direct mechanical connection between the drive and fluid sections of the pump. Instead, power is transmitted through magnetic coupling. This pump offers advantages such as zero leakage, high safety, high efficiency, corrosion resistance, low noise, and a compact design.

[0003] For existing permanent magnet shielded pumps, the support structure connected to the bottom of the main structure is plate-shaped, and the thickness of the support structure is often greater than the wall thickness of the bottom of the main structure. Since the main structure and the support structure of the permanent magnet shielded pump are cast as one piece, therefore, during the molding process, due to the inconsistent wall thickness of the support structure and the main structure, it is easy to cause stress accumulation at the connection between the two, and eventually lead to deformation of the main structure, affecting the appearance of the product and even affecting the normal use of the product. Utility Model Content

[0004] The purpose of the utility model is to provide a permanent magnet canned pump, aiming to solve the technical problem in the prior art that the permanent magnet canned pump housing is easily deformed due to uneven stress, thereby affecting the appearance and product quality.

[0005] To achieve the above-mentioned purpose, an embodiment of the present invention provides a permanent magnet shielded pump, comprising: a front cover; a rear shell, comprising a main body and a foot plate, the main body being configured to be docked and engaged with the front cover in the front-to-back direction, the foot plate being located at the bottom of the rear shell, the foot plate being used to support the front cover and the rear shell as a whole after they are docked with each other, the bottom of the main body being connected to the foot plate, the main body being in the shape of a column extending in the front-to-back direction, and the bottom of the main body being provided with a square notch opening facing backward.

[0006] Optionally, a thin-walled portion extends backward from the rear end of the main body, and a cross-section of the thin-walled portion in a vertical plane in the left-right direction is in the shape of a major arc.

[0007] Optionally, a motor junction box is installed at the rear of the main body, and the thin-walled portion is configured to shield the motor junction box in the left-right direction.

[0008] Optionally, a plurality of ribs are arranged in a circumferential array on the outer surface of the main body, and the ribs extend in the front-to-back direction.

[0009] Optionally, the square notch is opened at the bottom of the thin-walled portion.

[0010] Optionally, the front cover is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is provided at the front of the front cover and extends in the front-to-back direction, the water outlet pipe is provided at the upper part of the front cover and extends in the vertical direction, the axis of the water outlet pipe is coaxially provided with the axis of the front cover, and the axis of the water inlet pipe and the axis of the water outlet pipe are located in the same plane.

[0011] Optionally, an inclined surface is provided at the connection between the base plate and the bottom of the main body, the inclined surface has an acute angle with the horizontal plane, and both ends of the inclined surface extend to the bottom of the base plate and the main body respectively.

[0012] Optionally, the surface of the slope is configured to place a LOGO logo.

[0013] Optionally, the length of the base plate in the front-to-back direction is greater than the length of the inclined surface in the front-to-back direction.

[0014] Optionally, the front cover and the rear shell are connected to each other via a plurality of studs, and the plurality of studs are evenly distributed on the edge of the front cover around the circumference of the front cover.

[0015] Compared with the prior art, the above one or more technical solutions in a permanent magnet shielded pump provided by an embodiment of the present invention have at least one of the following technical effects: the main body of the permanent magnet shielded pump in the present invention adopts a cylindrical structure design, and the square notch with an opening facing backward at the bottom of the main body can change the flow direction of the stress inside the rear shell when the rear shell is cast, thereby enabling the rear shell to offset part of the stress by itself and ensure that the overall structure of the rear shell is not deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a schematic structural diagram of the permanent magnet canned pump in the present utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure from another perspective.

[0019] Among them, the reference numerals in the figures are:

[0020] Front cover 100, water inlet pipe 110, water outlet pipe 120;

[0021] Rear housing 200, main body 210, thin-walled portion 211, ribs 212, square notch 213, and base plate 220;

[0022] Motor junction box 300;

[0023] bevel 400;

[0024] Stud 500. DETAILED DESCRIPTION

[0025] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0028] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0029] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a permanent magnet canned pump, including a front cover 100 and a rear shell 200 .

[0030] Among them, the rear shell 200 includes a main body 210 and a base plate 220. The main body 210 is configured to be docked and engaged with the front cover 100 in the front-to-back direction. The base plate 220 is located at the bottom of the rear shell 200. The base plate 220 is used to support the entire front cover 100 and the rear shell 200 after they are docked with each other. The bottom of the main body 210 is connected to the base plate 220. The main body 210 is cylindrical and extends in the front-to-back direction. The bottom of the main body 210 is provided with a square notch 213 with an opening facing backward.

[0031] It can be understood that the main body 210 of the permanent magnet shielded pump in the present invention adopts a cylindrical structure design. The square notch 213 with an opening facing backward at the bottom of the main body 210 can change the flow direction of the internal stress of the rear shell 200 when the rear shell 200 is cast, thereby enabling the rear shell 200 to offset part of the stress by itself, ensuring that the overall structure of the rear shell 200 is not deformed, thereby ensuring the appearance and quality of the product.

[0032] It should be noted that the main body 210 and the base plate 220 are not connected to each other at the square notch 213, so that the main body 210 can release stress at the square notch 213, making it less likely for the main body 210 to be excessively deformed. In addition, the columnar shape referred to in the present invention includes cylindrical and prismatic shapes. Of course, the present invention is not limited to Figure 1 and Figure 2 The preferred cylindrical structure is shown.

[0033] like Figure 1 and Figure 2 As shown in one embodiment of the present invention, a thin-walled portion 211 is extended backward from the rear end of the main body 210. The cross section of the thin-walled portion 211 in the vertical plane in the left and right directions is in the shape of an arc. In other words, the cross-sectional profile of the thin-walled portion 211 is not a complete circle, but is as follows: Figure 1 The arc shape with an opening at the bottom shown in the figure can further reduce the stress generated during the casting process of the rear shell 200 and prevent the rear shell 200 from excessive deformation. Figure 1 As shown, the square notch 213 penetrates the thin-walled portion 211 on the left and right sides and penetrates the thin-walled portion 211 backward.

[0034] It can be understood that the aforementioned base plates 220 are provided in two, and the two base plates 220 are symmetrically arranged on the left and right sides of the rear shell 200 and are respectively connected to the left and right sides of the thin-walled portion 211. The thin-walled portion 211 is provided with square notches 213 at the positions corresponding to the two base plates 220.

[0035] Furthermore, if Figure 1As shown, in one embodiment of the present invention, a motor junction box 300 is installed at the rear of the main body 210, and the thin-walled portion 211 is configured to shield the motor junction box 300 in the left and right directions, so that the permanent magnet shielded pump in the present invention is more beautiful, and the shielded motor junction box 300 can also increase the safety of the permanent magnet shielded pump when in use.

[0036] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, a plurality of ribs 212 are arranged in a circumferential array on the outer surface of the main body 210, and the ribs 212 extend in the front-to-back direction. The evenly distributed ribs 212 can offset the injection stress and make the appearance more neat and beautiful.

[0037] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, a square notch 213 is provided at the bottom of the thin-walled portion 211. Due to the significant difference in thickness between the thin-walled portion 211 and the base plate 220, stress is easily generated at the connection between the two, leading to deformation. Therefore, providing the square notch 213 at the bottom of the thin-walled portion 211 is more effective in preventing deformation of the permanent magnet canned pump's appearance due to stress.

[0038] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the front cover 100 is provided with an inlet pipe 110 and an outlet pipe 120. The inlet pipe 110 is provided at the front of the front cover 100 and extends in the front-to-back direction. The outlet pipe 120 is provided at the upper portion of the front cover 100 and extends in the vertical direction. The axis of the outlet pipe 120 is coaxial with the axis of the front cover 100, and the axis of the inlet pipe 110 and the axis of the outlet pipe 120 are located in the same plane. It can be understood that by optimizing the interface layout of the inlet pipe 110 and the outlet pipe 120, the fluid drawn into the permanent magnet canned pump can be pumped out through the outlet pipe 120, and the structural layout is more reasonable and compact.

[0039] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, an inclined surface 400 is provided at the connection between the base plate 220 and the bottom of the main body 210. The inclined surface 400 forms an acute angle with the horizontal plane, and the ends of the inclined surface 400 extend to the bottom of the base plate 220 and the bottom of the main body 210, respectively. It can be understood that the inclined surface 400 structure can connect the base plate 220 and the main body 210 of the permanent magnetic canned pump, which can reduce the amount of raw materials used and is more consistent with the mechanical structure, so that the entire body composed of the front cover 100 and the rear shell 200 of the permanent magnetic canned pump can withstand greater forces.

[0040] like Figure 1 and Figure 2As shown, in one embodiment of the present invention, the surface of the inclined surface 400 is configured to accommodate a logo. The inclined surface 400 makes it easier to display the logo and effectively utilizes existing space, eliminating the need for an additional logo placement surface. The logos referred to in this invention include, but are not limited to, patterns and text used to represent product trademarks or specifications.

[0041] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the length of the base plate 220 in the front-to-back direction is greater than the length of the inclined surface 400 in the front-to-back direction, which can increase the supporting strength of the base plate 220, making the overall center of gravity of the permanent magnet shielded pump more stable and not easy to tip over.

[0042] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the front cover 100 and the rear shell 200 are connected to each other by a plurality of studs 500, and the plurality of studs 500 are evenly distributed around the circumference of the front cover 100 at the edge of the front cover 100. Connecting the front cover 100 and the rear shell 200 by the studs 500 facilitates installation and removal and provides a stable connection structure.

[0043] The above description further details the present invention in conjunction with specific preferred embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. A person skilled in the art of the present invention will appreciate that its architecture is flexible and adaptable, allowing for the development of a series of products without departing from the present invention's concept. Simple deductions or substitutions should be considered within the scope of patent protection for the present invention as defined by the submitted claims.

Claims

1. A permanent magnet canned pump, characterized in that: include: front cover; The rear shell includes a main body and a base plate. The main body is configured to be docked and engaged with the front cover in the front-to-back direction. The base plate is located at the bottom of the rear shell. The base plate is used to support the front cover and the rear shell as a whole after they are docked with each other. The bottom of the main body is connected to the base plate. The main body is cylindrical extending in the front-to-back direction, and a square notch with an opening facing backward is opened at the bottom of the main body.

2. The permanent magnet canned pump according to claim 1, characterized in that: A thin-walled portion is extended backward from the rear end of the main body, and a cross section of the thin-walled portion in a vertical plane in the left-right direction is in a superior arc shape.

3. The permanent magnet canned pump according to claim 2, characterized in that: A motor junction box is installed at the rear of the main body, and the thin-walled portion is configured to shield the motor junction box in the left-right direction.

4. The permanent magnet canned pump according to claim 2, characterized in that: The outer surface of the main body is provided with a plurality of ribs in a circumferential array, and the ribs extend along the front-to-back direction.

5. The permanent magnet canned pump according to claim 2, characterized in that: The square notch is formed at the bottom of the thin-walled portion.

6. The permanent magnet canned pump according to claim 1, characterized in that: The front cover is provided with a water inlet pipe and a water outlet pipe. The water inlet pipe is provided at the front of the front cover and extends in the front-to-back direction. The water outlet pipe is provided at the upper part of the front cover and extends in the vertical direction. The axis of the water outlet pipe is coaxially arranged with the axis of the front cover, and the axis of the water inlet pipe and the axis of the water outlet pipe are located in the same plane.

7. The permanent magnet canned pump according to claim 1, characterized in that: The base plate and the bottom of the main body are connected at a position where an inclined surface is provided. The inclined surface has an acute angle with a horizontal plane. The two ends of the inclined surface extend to the base plate and the bottom of the main body respectively.

8. The permanent magnet canned pump according to claim 7, characterized in that: The surface of the slope is configured to place a LOGO logo.

9. The permanent magnet canned pump according to claim 7, characterized in that: The length of the footrest plate in the front-to-back direction is greater than the length of the inclined surface in the front-to-back direction.

10. The permanent magnet canned pump according to claim 1, characterized in that: The front cover and the rear shell are connected to each other through a plurality of studs, and the plurality of studs are evenly distributed on the edge of the front cover around the circumference of the front cover.

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