Capacitor fixing and mounting structure for soft start of single-phase asynchronous motor

Abstract

The utility model discloses a capacitor fixing and mounting structure for soft start of a single-phase asynchronous motor, which comprises a mounting bracket, a capacitor, a grounding piece and a pressing mechanism, and is characterized in that the mounting bracket is provided with a mounting table, and the mounting table is provided with a sleeving hole extending and penetrating along a first direction; the capacitor is sleeved in the sleeving hole along the first direction, the capacitor is provided with a capacitor metal shell and a plurality of capacitor joints, and the periphery of the capacitor metal shell is provided with a limiting part extending outwards; the grounding piece sleeves the periphery of the capacitor metal shell, is clamped between the limiting part and the mounting table, and is provided with a grounding joint; the pressing mechanism is arranged on the installation support and provided with a pressing part, the pressing part and the limiting part are located on the same end side of the sleeving hole, and the pressing part is used for pressing the end of the capacitor in the first direction. And the capacitor and the grounding piece can be effectively prevented from falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to capacitor installation technical field of single -phase asynchronous motor, especially in single -phase asynchronous motor soft start with capacitor fixed mounting structure for soft start. BACKGROUND

[0002] At present, capacitor is used in the starting, running, protection and energy saving of single -phase asynchronous motor, and the installation mode of capacitor in the prior art is unreasonable, and the capacitor and the grounding wire are prone to falling off. INNOVATION

[0003] The utility model discloses a capacitor fixed mounting structure for soft start of single -phase asynchronous motor to solve one or more technical problems existing in the prior art, at least provide a beneficial choice or create conditions.

[0004] The technical scheme adopted to solve the above technical problems is:

[0005] The utility model provides a capacitor fixed mounting structure for soft start of single -phase asynchronous motor, including:

[0006] The mounting bracket is equipped with the installation platform, and the installation platform is equipped with the sleeve joint hole extending through along the first direction;

[0007] The capacitor is sleeved in the sleeve joint hole along the first direction, and the capacitor is equipped with capacitor metal shell and a plurality of capacitor joints, and the outer periphery of the capacitor metal shell is equipped with the limit portion extending outward;

[0008] The grounding piece is sleeved on the outer periphery of the capacitor metal shell, and the grounding piece is clamped between the limit portion and the installation platform, and the grounding piece is equipped with the grounding joint;

[0009] The pressing mechanism is arranged on the mounting bracket, and the pressing mechanism is equipped with the pressing portion, and the pressing portion and the limit portion are located on the same end side of the sleeve joint hole, and the pressing portion is used for pressing the end portion of the capacitor along the first direction.

[0010] The capacitor fixed mounting structure has the beneficial effects that:

[0011] When the capacitor is installed and fixed, first, the grounding member is sleeved on the outer periphery of the capacitor metal shell, then the capacitor is sleeved on the sleeving hole in the first direction, and then the end of the capacitor is pressed in the first direction by the pressing part, so that the grounding member is clamped and fixed between the limiting part and the mounting table, and the capacitor is clamped and fixed on the sleeving hole, so that the grounding installation of the capacitor metal shell is realized, and the fixation of the capacitor on the mounting bracket is also realized. In use, the capacitor connector is used for connecting the PCB of the motor, so as to realize the electric control connection of the capacitor, and the grounding connector is used for grounding, so as to realize the grounding of the capacitor metal shell. The utility model realizes the quick fixation and grounding installation of the capacitor, improves the efficiency of assembly, and effectively avoids the falling of the capacitor and the grounding member under the action of the limiting part and the pressing part.

[0012] As a further improvement of the above technical solution, the pressing mechanism comprises a cover and a fixed pin, the cover is arranged above the mounting table, the pressing part is arranged in the cover, the mounting table is provided with at least one first positioning part and a first pin hole, an inner side of the cover is provided with a second positioning part matched with the first positioning part and a second pin hole opposite to the first pin hole, and the fixed pin is inserted into the second pin hole and the first pin hole.

[0013] As a further improvement of the above technical solution, the outer periphery of one end of the capacitor metal shell is provided with a turned-up edge to form the limiting part.

[0014] As a further improvement of the above technical solution, the mounting table is provided with a fastening sleeve sleeved between the inner peripheral wall of the sleeving hole and the outer peripheral wall of the capacitor metal shell, and the fastening sleeve is an elastic member.

[0015] As a further improvement of the above technical solution, the grounding member is clamped between the limiting part and the fastening sleeve.

[0016] As a further improvement of the above technical solution, one end of the sleeving hole towards the limiting part is provided with an annular stepped groove, and the fastening sleeve is sleeved in the stepped groove.

[0017] As a further improvement of the above technical solution, the grounding member is an annular ring structure, and the grounding member is provided with a grounding connector.

[0018] As a further improvement of the above technical solution, the grounding member is a spring structure, and the two ends of the spring structure are respectively in contact with the limiting part and the fastening sleeve.

[0019] As a further improvement of the above technical solution, at least one fastening belt is further included, the two ends of the fastening belt are respectively connected with the mounting bracket, and the fastening belt is tightly held on the outer peripheral wall of one end of the capacitor metal shell away from the limiting part.

[0020] As a further improvement of the above technical solution, the side surface of the mounting bracket is provided with a plurality of limiting plates arranged in intervals, and the ends of the plurality of limiting plates away from the mounting bracket abut against the outer circumferential wall of the capacitor metal shell.

[0021] As a further improvement of the above technical solution, the outer circumferential wall of the capacitor metal shell away from the limiting part is provided with a damping pad between the side surface of the mounting bracket, so that the capacitor metal shell is clamped between the damping pad and the fastening belt.

[0022] Other features and advantages of the present application will be described in the following description and become apparent from the description, or can be learned from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described below in conjunction with the drawings and examples.

[0024] Figure 1 is an exploded view of an embodiment of the capacitor fixing and mounting structure provided by the present application Figure 1 ;

[0025] Figure 2 is a sectional view of an embodiment of the capacitor fixing and mounting structure provided by the present application

[0026] Figure 3 is Figure 2 a partial enlarged view of part A in the figure

[0027] Figure 4 is an exploded view of an embodiment of the capacitor fixing and mounting structure provided by the present application Figure 2 ;

[0028] Figure 5 is a structure schematic diagram of an embodiment of the capacitor fixing and mounting structure provided by the present application after the cover is removed

[0029] Figure 6 is a structure schematic diagram of an embodiment of the cover provided by the present application

[0030] Figure 7 is a structure schematic diagram of an embodiment of the capacitor fixing and mounting structure provided by the present application

[0031] Figure 8 is a structure schematic diagram of an embodiment of the spring structure provided by the present application Figure 1 ;

[0032] Figure 9The spring structure is provided by the utility model, and the structure of one embodiment is shown in the figure Figure 2 ;

[0033] Reference signs:

[0034] mounting support 100, mounting table 110, first positioning part 111, first pin hole 112, sleeve joint hole 120, stepped groove 121, buckle 130, limiting plate 140

[0035] capacitor 200, capacitor metal shell 210, flange 211, capacitor connector 220, limiting part 230

[0036] grounding part 300, grounding connector 310

[0037] fastening sleeve 400

[0038] spring structure 500

[0039] fastening belt 600, bayonet 610

[0040] vibration damping pad 700

[0041] cover 800, second pin hole 810, second positioning part 820

[0042] fixed bolt 900 DETAILED DESCRIPTION

[0043] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0044] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of the indication of up and down, is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as the limitation of the utility model.

[0045] In the description of the utility model, multiple means more than two. If the first, the second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0046] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing, connecting should be understood broadly, and the specific meaning of the above words in the utility model can be determined by the person skilled in the art in combination with the specific content of the technical scheme.

[0047] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the following described embodiments are part of the embodiments of the utility model, not all embodiments.

[0048] At present, capacitor 200 is used in the starting, running, protection and energy saving of single-phase asynchronous motor, the installation mode of capacitor 200 in the prior art is unreasonable, and it is inconvenient to assemble, and capacitor 200 and its grounding wire are easy to fall off, therefore, the utility model provides a capacitor fixed mounting structure for single-phase asynchronous motor soft start, which can realize the quick fixed mounting and grounding installation of capacitor 200, improve the efficiency and firmness of assembly.

[0049] As Figures 1 to 9 The capacitor fixed mounting structure of the embodiment comprises an installation support 100, a capacitor 200, a grounding piece 300 and a pressing mechanism.

[0050] The installation support 100 is provided with an installation table 110, and the installation table 110 of the embodiment is arranged at the upper portion of the installation support 100, and the installation table 110 is horizontally arranged, in other embodiments, the installation table 110 can be arranged at other positions of the installation support 100, and the installation table 110 can be arranged obliquely, according to the installation posture of the capacitor 200.

[0051] The installation table 110 is provided with a sleeve joint hole 120 extending through along a first direction, specifically, the sleeve joint hole 120 of the embodiment extends through along the up-down direction, and the capacitor 200 in the embodiment is vertically installed, in other embodiments, the capacitor 200 can be horizontally installed, and at this time, the sleeve joint hole 120 extends through along the left-right direction or the front-rear direction.

[0052] And the sleeve joint hole 120 of the embodiment is a circular hole structure, mainly according to the shape of the capacitor 200, the capacitor 200 of the embodiment is cylindrical, and in other embodiments, the capacitor 200 can have other shapes.

[0053] The capacitor 200 of the embodiment is sleeved in the sleeve joint hole 120 along the up-down direction, specifically, the capacitor 200 of the embodiment is sleeved in the sleeve joint hole 120 from top to bottom, and in other embodiments, the capacitor 200 can be sleeved from bottom to top.

[0054] The capacitor 200 of the embodiment is provided with a capacitor metal shell 210 and a plurality of capacitor connectors 220 for connecting with a PCB of the motor. The capacitor connectors 220 of the embodiment are arranged at the upper end of the capacitor 200. The outer periphery of the capacitor metal shell 210 is provided with an outwardly extending limiting portion 230. The limiting portion 230 of the embodiment is arranged at the upper portion of the capacitor metal shell 210 and above the mounting table 110, so that the lower portion of the capacitor 200 can pass through the sleeving hole 120.

[0055] The grounding member 300 is sleeved on the outer periphery of the capacitor metal shell 210 and clamped between the limiting portion 230 and the mounting table 110. The grounding member 300 is provided with a grounding connector 310 for grounding, so that the capacitor metal shell 210 forms a grounding loop.

[0056] The pressing mechanism is arranged on the mounting bracket 100. The pressing mechanism is provided with a pressing portion. The pressing portion and the limiting portion 230 are located at the same end side of the sleeving hole 120, i.e., above the mounting table 110. The pressing portion is used to press the upper end portion of the capacitor 200 up and down.

[0057] During the installation and fixation of the capacitor 200, the grounding member 300 is first sleeved on the outer periphery of the capacitor metal shell 210, then the capacitor 200 is sleeved on the sleeving hole 120 in the first direction, and then the upper end portion of the capacitor 200 is pressed by the pressing portion, so that the grounding member 300 is clamped and fixed between the limiting portion 230 and the mounting table 110, and the capacitor 200 is clamped and fixed on the sleeving hole 120, thereby achieving the grounding installation of the capacitor metal shell 210 and the fixation of the capacitor 200 on the mounting bracket 100. The capacitor 200 is quickly fixed and installed, the efficiency of assembly is improved, and the capacitor 200 and the grounding member 300 can be effectively prevented from falling off under the limiting action of the limiting portion 230 and the pressing portion.

[0058] As Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, the compression mechanism of the embodiment includes a cover 800 and a fixed pin 900. The cover 800 is arranged above the mounting table 110, and the compression part is arranged in the cover 800. The mounting table 110 is provided with at least one first positioning part 111 and a first pin hole 112. An inner side of the cover 800 is provided with a second positioning part 820 for clamping the first positioning part 111 and a second pin hole 810 opposite to the first pin hole 112. The fixed pin 900 is inserted into the second pin hole 810 and the first pin hole 112. After the capacitor 200 is sleeved, the second positioning part 820 in the cover 800 is clamped with the first positioning part 111 on the mounting table 110, and then the pin is inserted into the second pin hole 810 and the first pin hole 112, so as to realize the quick assembly and fixation of the cover 800.

[0059] In some embodiments, the compression part can adopt an outer threaded ring tightening structure. It can be understood that the cover 800 is provided with a threaded pressing hole, and an outer threaded ring is threaded in the threaded pressing hole. The lower end of the outer threaded ring abuts against the upper end of the capacitor 200.

[0060] Alternatively, in some other embodiments, the compression part is designed as N barbs on the inner side of the cover 800 or a double bar on the bottom edge of the cover 800 to compress the upper end of the capacitor 200.

[0061] As shown in Figure 5 and Figure 6 , the first positioning part 111 of the embodiment is a clamping groove structure arranged transversely, and the second positioning part 820 is a clamping block structure matched with the clamping groove structure.

[0062] Further, as shown in Figure 3 , the upper end of the capacitor metal shell 210 is provided with a flange 211 folded outward to form a limiting part 230. The flange 211 of the embodiment is annular. The flange 211 is used for limiting installation of the grounding member 300 and limiting the capacitor 200, so as to avoid the capacitor 200 from falling down along the sleeve hole 120.

[0063] In some other embodiments, the limiting part 230 can adopt a ring-shaped boss structure, that is, a circular ring structure is welded on the capacitor metal shell 210, and the limiting part 230 can be arranged at a middle position of the capacitor metal shell 210.

[0064] In order to improve the fastening of the capacitor metal shell 210, as shown in Figure 1As shown, the mounting table 110 of the embodiment is provided with a fastening sleeve 400 sleeved between the inner peripheral wall of the sleeving hole 120 and the outer peripheral wall of the capacitor metal shell 210, wherein the fastening sleeve 400 is an elastic member, and in other embodiments, the fastening sleeve 400 can adopt a soft metal ring structure, and the fastening sleeve 400 of the embodiment adopts a silica gel ring, which has a circular or oval cross section to facilitate assembly. In the embodiment, the sleeving between the capacitor metal shell 210 and the sleeving hole 120 is achieved by elastic deformation of the fastening sleeve 400, and when assembling, the fastening sleeve 400 can be sleeved on the outer periphery of the capacitor metal shell 210 in advance to pre-tighten the grounding member 300, and then the capacitor 200 is sleeved in the sleeving hole 120 to further improve the efficiency of assembly.

[0065] In other embodiments, the fastening sleeve 400 can be sleeved in the sleeving hole 120 in advance, the grounding member 300 is sleeved on the capacitor metal shell 210, and then the capacitor 200 is sleeved in the sleeving hole 120.

[0066] The grounding member 300 of the embodiment is clamped between the limiting portion 230 and the fastening sleeve 400, which can lock the grounding member 300 and make the inner and outer peripheral walls of the fastening sleeve 400 abut with the outer peripheral wall of the capacitor metal shell 210 and the inner peripheral wall of the sleeving hole 120, respectively, to improve the fastness of the sleeving between the capacitor metal shell 210 and the sleeving hole 120.

[0067] Further, as shown in Figure 1 and 3 , the sleeving hole 120 of the embodiment is provided with an annular stepped groove 121 at one end towards the limiting portion 230, that is, the stepped groove 121 is arranged at the upper end of the sleeving hole 120, and the stepped groove 121 is matched with the fastening sleeve 400 in shape and size, the fastening sleeve 400 is sleeved in the stepped groove 121, and the stepped groove 121 is used for limiting installation of the fastening sleeve 400.

[0068] In some embodiments, as shown in Figure 4 , the grounding member 300 is an annular ring structure.

[0069] As shown in Figure 1 , Figure 3 , Figure 8 , the grounding member 300 of the embodiment is a spring structure 500, and the two ends of the spring structure 500 abut with the limiting portion 230 and the fastening sleeve 400, respectively. In the embodiment, the spring structure 500 is kept clamped between the limiting portion 230 and the fastening sleeve 400 by the elastic force in the up-down direction, so that the spring structure 500 keeps abutting with the limiting portion 230.

[0070] When assembling, the spring structure 500 and the fastening sleeve 400 can be mounted on the capacitor metal shell 210 in advance, and then are sleeved in the sleeve joint hole 120 together.

[0071] As shown in the drawings, in some embodiments, the grounding connector 310 on the spring structure 500 is a spring wire in a straight rod structure. Figure 8 As shown in the drawings, in some other embodiments, the grounding connector 310 is a bend arranged in an inverted U-shaped bending manner. Figure 9

[0072] In order to improve the firmness of the capacitor 200 installation, as shown in the drawings, the present embodiment further comprises at least one fastening belt 600, both ends of the fastening belt 600 are connected with the mounting bracket 100 respectively, and the fastening belt 600 is tightly held on the outer peripheral wall of the lower end of the capacitor metal shell 210 to reinforce the capacitor 200. Figure 1 Figure 5 The mounting bracket 100 is provided with buckles 130 on both sides, and the buckles 130 are clamped with the buckling holes 610 at the ends of the fastening belt 600.

[0073] The fastening belt 600 of the present embodiment adopts an elastic belt, and reinforces the capacitor 200 through the elastic force, and also has a certain damping effect.

[0074] In addition, the mounting bracket 100 of the present embodiment is provided with a plurality of limiting plates 140 arranged in an interval manner on the side surface, and the adjacent two limiting plates 140 form a linear slot for guiding through, and the end of the plurality of limiting plates 140 away from the mounting bracket 100 abuts against the outer peripheral wall of the lower part of the capacitor metal shell 210, and under the tight holding of the fastening belt 600, the capacitor metal shell 210 abuts against the plurality of limiting plates 140, and the present embodiment can limit the capacitor metal shell 210 through the plurality of limiting plates 140.

[0075] In addition, in order to avoid the loosening of the capacitor 200, the damping pad 700 is arranged between the outer peripheral wall of the lower end of the capacitor metal shell 210 and the side surface of the mounting bracket 100, so that the capacitor metal shell 210 is clamped between the damping pad 700 and the fastening belt 600, and the damping pad 700 of the present embodiment is arranged between the plurality of limiting plates 140.

[0076]

[0077] ​​​In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0078] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the purpose of the present application.

Claims

1. A capacitor fixing and mounting structure for soft starting a single-phase asynchronous motor, characterized in that, The capacitor fixing and mounting structure comprises a mounting bracket (100) provided with a mounting table (110) provided with a sleeve joint hole (120) extending through along a first direction; a capacitor (200) sleeved in the sleeve joint hole (120) along the first direction, the capacitor (200) being provided with a capacitor metal shell (210) and a plurality of capacitor joints (220), and the outer periphery of the capacitor metal shell (210) being provided with a limiting portion (230) extending outward; a grounding member (300) sleeved on the outer periphery of the capacitor metal shell (210), the grounding member (300) being clamped between the limiting portion (230) and the mounting table (110), and the grounding member (300) being provided with a grounding joint (310); and a pressing mechanism provided on the mounting bracket (100), the pressing mechanism being provided with a pressing portion, the pressing portion being located on the same end side of the sleeve joint hole (120) as the limiting portion (230), and the pressing portion being used for pressing an end portion of the capacitor (200) along the first direction.

2. The capacitor fixing and mounting structure according to claim 1, wherein the pressing mechanism comprises a cover (800) and a fixed pin (900), the cover (800) being arranged above the mounting table (110), the pressing portion being arranged in the cover (800), the mounting table (110) being provided with at least one first positioning portion (111) and a first pin hole (112), an inner side of the cover (800) being provided with a second positioning portion (820) matched with the first positioning portion (111) and a second pin hole (810) opposite to the first pin hole (112), and the fixed pin (900) being inserted into the second pin hole (810) and the first pin hole (112).

3. The capacitor fixing and mounting structure according to claim 1, wherein the outer periphery of one end of the capacitor metal shell (210) is provided with a flange (211) folded outward to form the limiting portion (230).

4. The capacitor fixing and mounting structure according to claim 3, wherein the mounting table (110) is provided with a fastening sleeve (400) sleeved between an inner peripheral wall of the sleeve joint hole (120) and an outer peripheral wall of the capacitor metal shell (210), and the fastening sleeve (400) is an elastic member.

5. The capacitor fixing and mounting structure according to claim 4, wherein the grounding member (300) is clamped between the limiting portion (230) and the fastening sleeve (400).

6. The capacitor fixing and mounting structure according to claim 5, wherein one end of the sleeve joint hole (120) towards the limiting portion (230) is provided with an annular stepped groove (121), and the fastening sleeve (400) is sleeved in the stepped groove (121).

7. The capacitor fixing and mounting structure according to claim 5, wherein the grounding member (300) is an annular ring structure, and the grounding member (300) is provided with the grounding joint (310). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 8. The capacitor fixing mounting structure according to claim 5, characterized in that: The grounding member (300) is a spring structure (500), and two ends of the spring structure (500) are respectively in abutment with the limiting portion (230) and the fastening sleeve (400).

9. The capacitor fixing mounting structure according to claim 1, characterized in that: Further comprising at least one fastening band (600), two ends of the fastening band (600) are respectively connected with the mounting bracket (100), and the fastening band (600) is tightly embraced around the outer peripheral wall of the capacitor metal shell (210) at an end away from the limiting portion (230).

10. The capacitor fixing mounting structure according to claim 9, characterized in that: The outer peripheral wall of the capacitor metal shell (210) at an end away from the limiting portion (230) is provided with a damping pad (700) between the side surface of the mounting bracket (100), so that the capacitor metal shell (210) is clamped between the damping pad (700) and the fastening band (600).

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