Motor filter capacitor connection structure and motor

Abstract

This application provides a motor filter capacitor connection structure and a motor, relating to the field of motor capacitor installation technology, aiming to solve the technical problem of the difficulty in connecting capacitor leads to brushes. The motor filter capacitor connection structure includes: a ring-shaped circuit board, multiple connectors, and multiple flexible plug-in components. The ring-shaped circuit board is mounted on the motor end cover and has a plate array capacitor. Each brush sleeve has a flexible plug-in component on its side wall, and each flexible plug-in component has a flexible plug-in slot. One end of each of the multiple connectors is connected to the ring-shaped circuit board, and the other end of each connector extends away from the ring-shaped circuit board and plugs into a corresponding flexible plug-in slot. By providing connectors on the ring-shaped circuit board, when the ring-shaped circuit board is mounted on the motor end cover, the connectors can be directly electrically connected to the positive and negative brushes, eliminating the need for additional electrical connection wires when connecting the capacitor to the positive and negative terminals of the motor, thus solving the problem of the difficulty in installing capacitors in small spaces.

Description

Technical Field

[0001] This application relates to the field of motor capacitor installation technology, and more specifically, to a motor filter capacitor connection structure and a motor. Background Technology

[0002] Existing motor capacitors are typically mounted and fixed to the motor end cover using welding or screw connections. The motor capacitor has capacitor leads that connect to the brushes. However, the limited space within the end cover makes connecting the capacitor leads to the brushes difficult and unreliable. Utility Model Content

[0003] The purpose of this application is to provide a brush assembly and a motor to solve the technical problems of high difficulty and low reliability in connecting capacitor leads and brushes.

[0004] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0005] The first aspect of this application provides a motor filter capacitor connection structure, comprising: a ring circuit board, on the front side of which a plate array capacitor assembly is disposed; a plurality of connectors, one end of which is connected to the front side of the ring circuit board, and the other end of which extends away from the ring circuit board; a plurality of resilient plugs, each of which is constructed on the side wall corresponding to a brush sleeve, and each of which has a resilient plug groove; the ring circuit board is constructed on the end cover of the motor, and the other end of each connector is inserted into a corresponding resilient plug groove.

[0006] In one possible implementation, the connector is a conductor.

[0007] In one possible implementation, one end of the resilient connector is formed on the sidewall of the brush sleeve, and the other end of the resilient connector is bent toward one end of the resilient connector to form the resilient connector groove; in a first direction, the resilient connector groove has a first opening and a second opening opposite to each other, the first opening and the second opening communicating with each other; the other end of the connector is inserted into the resilient connector groove from the first opening, and the other end of the connector is welded to the resilient connector groove.

[0008] In one possible implementation, one end of the resilient connector has a connecting protrusion configured to match a groove on the sidewall of the brush sleeve, the connecting protrusion being engaged in the groove.

[0009] In one possible implementation, the connecting protrusion is welded to the groove.

[0010] In one possible implementation, the motor filter capacitor connection structure further includes a threaded connector; the annular circuit board is provided with a through hole that allows the threaded connector to pass through, the through hole being configured to match a threaded hole provided on the end cap, the threaded connector passing through the through hole and connecting to the threaded hole.

[0011] In one possible implementation, the back of the annular circuit board has a grounding point, the location of which corresponds to the location of the through hole; when the threaded connector passes through the through hole and connects to the threaded hole, the grounding point is electrically connected to the end cap.

[0012] In one possible implementation, the plurality of connectors are spaced at different distances along the circumference of the annular circuit board.

[0013] In one possible implementation, the resilient connector is a connector made of bronze.

[0014] The second aspect of this application provides a motor that includes the motor filter capacitor connection structure described above.

[0015] Compared with related technologies, the motor filter capacitor connection structure provided in this application has the following advantages:

[0016] The motor filter capacitor connection structure provided in this application provides a plate array capacitor assembly and connectors on a ring circuit board. When the ring circuit board is installed on the end cover, the connectors can be directly electrically connected to the positive and negative brushes, so that the capacitors and the positive and negative terminals of the motor are connected together. There is no need to introduce additional electrical connection wires, thus solving the problem of the difficulty of installing capacitors in a small space.

[0017] Meanwhile, the motor filter capacitor connection structure provided in this application embodiment also has an elastic plug-in on the side wall of the brush sleeve. When the annular circuit board is installed on the end cover, the connector can be directly inserted into the elastic plug-in slot of the elastic plug-in. The elastic plug-in slot of the elastic plug-in can elastically expand and contract. When the connector is inserted into the elastic plug-in slot of the elastic plug-in, the elastic plug-in slot is in an elastically contracted state. The elastic plug-in slot can provide elastic force to the connector, so that the connector and the brush are firmly and reliably connected together.

[0018] In addition to the technical problems solved by the embodiments of this disclosure, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that the motor filter capacitor connection structure and the motor provided by the embodiments of this application can solve, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a ring circuit board provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the motor filter capacitor connection structure provided in the embodiments of this application;

[0022] Figure 3 for Figure 2 A magnified view of region A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100 - Ring-shaped circuit board; 101 - Through hole; 102 - Threaded connector;

[0025] 200-Plate array capacitor assembly;

[0026] 300-Connector;

[0027] 400 - Flexible connector; 402 - Second opening;

[0028] 500-End Cap;

[0029] 600-Brush;

[0030] 700-Brush sleeve. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] like Figure 1 , Figure 2 and Figure 3As shown, the motor filter capacitor connection structure provided in this application embodiment includes: an annular circuit board 100, the outer diameter of the annular circuit board 100 is the same as the inner diameter of the motor end cover 500, so that the annular circuit board 100 is installed at the bottom of the end cover 500; the annular circuit board 100 has a front and a back, the back is in contact with the bottom of the end cover 500, and the front is exposed inside the end cover 500.

[0033] The front side of the ring circuit board 100 is provided with a plate array capacitor assembly 200, which mainly plays a filtering role for electromagnetic noise in the circuit system.

[0034] The plate array capacitor assembly 200 is soldered to the front side of the annular circuit board 100.

[0035] The motor filter capacitor connection structure also includes: multiple connectors 300, the number of connectors 300 matching the number of brushes 600, so that each connector 300 is electrically connected to a corresponding brush 600.

[0036] In this configuration, one end of each of the multiple connectors 300 is connected to the front of the annular circuit board 100, and the other end of each of the multiple connectors 300 extends away from the annular circuit board 100. When the annular circuit board 100 is installed at the bottom of the end cover 500, the other end of each of the multiple connectors 300 extends out and is electrically connected to the corresponding brush 600 to achieve electrical connection between the motor capacitor and the brush 600.

[0037] In this embodiment, one end of a plurality of connectors 300 can be vertically connected to the front side of the annular circuit board 100.

[0038] Furthermore, multiple connectors 300 are arranged at different intervals along the circumference of the annular circuit board 100.

[0039] The motor filter capacitor connection structure also includes: multiple flexible plugs 400, the number of which matches the number of brushes 600, such that each flexible plug 400 is constructed on the side wall of a corresponding brush sleeve 700, and each flexible plug 400 has a flexible plug groove; the other end of multiple connectors 300 extends out and is inserted into a corresponding flexible plug groove, so that the connectors 300 are electrically connected to the corresponding brushes 600.

[0040] In other words, the connector 300 is electrically connected to the corresponding brush 600 through the elastic plug 400.

[0041] The motor filter capacitor connection structure provided in this application embodiment, by setting a plate array capacitor assembly 200 and a connector 300 on the annular circuit board 100, allows the connector 300 to be directly electrically connected to the brush 600 when the annular circuit board 100 is installed on the end cover 500, so that the capacitor and the motor are connected together; no additional electrical connection wires are required, thus solving the problem of difficulty in installing capacitors in a small space.

[0042] Meanwhile, the motor filter capacitor connection structure provided in this application embodiment also has an elastic plug 400 on the side wall of the brush sleeve 700. When the annular circuit board 100 is installed on the end cover 500, the connector 300 can be directly plugged into the elastic plug groove of the elastic plug 400, so that the connector 300 and the brush 600 are firmly and reliably connected together.

[0043] Furthermore, the elastic insertion groove of the elastic connector 400 can elastically expand and contract. When the connector 300 is inserted into the elastic insertion groove of the elastic connector 400, the elastic insertion groove is in an elastically contracted state. The elastic insertion groove can provide elastic force to the connector 300, so that the connector 300 is firmly connected in the elastic insertion groove.

[0044] In this embodiment, the connector 300 is a conductor, which can be made of copper or a copper alloy.

[0045] The connector 300 can be a conductor made of brass, which has excellent mechanical properties, corrosion resistance and machinability.

[0046] It should be noted that in actual manufacturing, the thickness, length, and width of the conductor are set according to the specific dimensions of the actual end cap 500, and are not limited here.

[0047] Meanwhile, the specific position of the conductor on the annular circuit board 100 is also set according to the specific position of the actual brush 600, so that when the annular circuit board 100 is installed on the end cover 500, the connector 300 can be directly inserted into the elastic insertion slot of the elastic connector 400.

[0048] In this embodiment, the elastic connector 400 can be a conductor made of bronze or copper alloy, which has its own elasticity.

[0049] The flexible connector 400 has opposing inner and outer surfaces, with the inner surface conforming to the sidewall of the brush sleeve 700.

[0050] The inner surface of one end of the elastic connector 400 is in contact with the side wall of the brush sleeve 700, and the other end of the elastic connector 400 is bent toward one end of the elastic connector 400 to form an elastic connector groove; and the end of the other end of the elastic connector 400 is bent to be able to contact the outer surface of the elastic connector 400, so as to form a groove opening of the elastic connector groove between the end of the other end of the elastic connector 400 and the outer surface of the elastic connector 400.

[0051] In the first direction ( Figure 2 and Figure 3 In the direction perpendicular to the paper shown, the elastic insertion slot has a first opening (hidden in the paper and not shown) and a second opening 402, which are connected; the other end of the connector 300 is inserted into the elastic insertion slot from the first opening, and the other end of the connector 300 is located in the groove of the elastic insertion slot.

[0052] In other words, the other end of the connector 300 abuts against both the outer surface of the elastic connector 400 and the end of the other end of the elastic connector 400, so that the connector 300 is inserted into the elastic insertion groove of the elastic connector 400. At the same time, the opening of the elastic insertion groove also provides elastic contraction force to the connector 300, so that the connector 300 is firmly connected in the elastic insertion groove.

[0053] In this embodiment, the other end of the connector 300 is welded to the elastic insertion slot.

[0054] The other end of the connector 300 is welded to the outer surface of the elastic plug 400, and the other end of the connector 300 is also welded to the elastic plug groove; this further improves the connection reliability of the connector 300.

[0055] In this embodiment, after the other end of the connector 300 is inserted into the elastic insertion groove through the first opening, a portion of the connector 300 can extend out of the elastic insertion groove through the second opening to increase the contact area between the other end of the connector 300 and the outer surface of the elastic insertion member 400, and at the same time increase the contact area between the other end of the connector 300 and the end of the other end of the elastic insertion member 400, thereby further improving the connection reliability of the connector 300.

[0056] In this embodiment, the inner surface of one end of the elastic connector 400 has a connecting protrusion, and the side wall of the brush sleeve 700 is provided with a groove. The connecting protrusion is constructed to match the groove, and the connecting protrusion is connected in the groove, so that one end of the elastic connector 400 is connected to the side wall of the brush sleeve 700.

[0057] In this embodiment, after the connecting protrusion is connected to the groove, the connecting protrusion can also be welded to the groove to ensure that one end of the elastic plug 400 is firmly connected to the side wall of the brush sleeve 700.

[0058] In this embodiment of the application, a through hole 101 is provided on the annular circuit board 100, and a threaded hole is provided on the end cap 500. The through hole 101 is configured to match the threaded hole.

[0059] The motor filter capacitor connection structure also includes: a threaded connector 102; a through hole 101 allows the threaded connector 102 to pass through. When the annular circuit board 100 is installed on the end cover 500, the threaded connector 102 passes through the through hole 101 and the threaded hole to connect, so that the annular circuit board 100 is firmly and reliably installed on the bottom of the end cover 500.

[0060] Among them, through hole 101 can be a threaded hole.

[0061] refer to Figure 2 In the motor filter capacitor connection structure provided in this application embodiment, the back of the annular circuit board 100 has a grounding point, the position of which corresponds to the position of the through hole 101. At the same time, the position of the grounding point is also opposite to the threaded hole on the end cover 500. When the threaded connector 102 passes through the through hole 101 and connects to the threaded hole, the annular circuit board 100 is installed on the end cover 500, and the grounding point is electrically connected to the end cover 500. Then, the end cover 500 is connected to the actual ground wire.

[0062] The grounding point is electrically connected to the end cover 500 by means of threaded connector 102, thereby achieving grounding without the need for a separate grounding wire, ensuring circuit stability and safety while avoiding the grounding wire taking up too much space.

[0063] Alternatively, when the threaded connector 102 passes through the through hole 101 and connects to the threaded hole, the end of the threaded connector 102 protrudes from the threaded hole, and then the end of the threaded connector 102 is connected to the actual ground wire. This allows the annular circuit board 100 to be mounted on the end cover 500, with the grounding point connected to the actual ground wire via the threaded connector 102. This achieves grounding without the need for a separate ground wire, ensuring circuit stability and safety while avoiding excessive space occupied by the ground wire.

[0064] Multiple through holes 101 can be provided on the annular circuit board 100, and the multiple through holes 101 are arranged at equal intervals in the circumferential direction of the annular circuit board 100.

[0065] This application also provides a motor that includes the motor filter capacitor connection structure described above.

[0066] In summary, this application provides a motor filter capacitor connection structure and a motor. The motor filter capacitor connection structure includes: an annular circuit board 100, multiple connectors 300, and multiple elastic plug-in connectors 400. A plate array capacitor assembly 200 is disposed on the front side of the annular circuit board 100; one end of each connector 300 is connected to the front side of the annular circuit board 100, and the other end of each connector 300 extends away from the annular circuit board 100; each elastic plug-in connector 400 is constructed on the side wall of a corresponding brush sleeve 700, and each elastic plug-in connector 400 has an elastic plug-in groove; the annular circuit board 100 is constructed on the end cover 500 of the motor, and the other end of each connector 300 is inserted into a corresponding elastic plug-in groove. By setting a plate array capacitor assembly 200 and a connector 300 on the annular circuit board 100, when the annular circuit board 100 is installed on the end cover 500, the connector 300 can be directly electrically connected to the brush 600, so that no additional electrical connection wires are needed when connecting the capacitor and the positive and negative terminals of the motor, thus solving the problem of the difficulty of installing capacitors in a small space.

[0067] Meanwhile, the motor filter capacitor connection structure provided in this application embodiment also has an elastic plug 400 on the side wall of the brush sleeve 700. When the annular circuit board 100 is installed on the end cover 500, the connector 300 can be directly inserted into the elastic plug groove of the elastic plug 400. The elastic plug groove of the elastic plug 400 can elastically expand and contract. When the connector 300 is inserted into the elastic plug groove of the elastic plug 400, the elastic plug groove is in an elastically contracted state. The elastic plug groove can provide elastic force to the connector 300, so that the connector 300 and the brush 600 are firmly and reliably connected together.

[0068] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0069] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0070] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "one" or "" can also be understood to convey either singular or plural usage.

[0071] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A motor filter capacitor connection structure, characterized in that, include: A ring-shaped circuit board, wherein a plate array capacitor assembly is provided on the front side of the ring-shaped circuit board; Multiple connectors, one end of which is connected to the front side of the annular circuit board, and the other end of which extends away from the annular circuit board; Multiple resilient connectors, each of which is constructed on the sidewall of a corresponding brush sleeve, and each of which has a resilient insertion groove; The annular circuit board is constructed on the end cover of the motor, and the other end of each connector is inserted into a corresponding resilient insertion slot.

2. The motor filter capacitor connection structure according to claim 1, characterized in that, The connector is a conductor.

3. The motor filter capacitor connection structure according to claim 1, characterized in that, One end of the elastic connector is formed on the side wall of the brush sleeve, and the other end of the elastic connector is bent toward one end of the elastic connector to form the elastic connector groove. In a first direction, the resilient insertion slot has a first opening and a second opening opposite to each other, the first opening and the second opening being in communication; The other end of the connector is inserted into the elastic insertion groove from the first opening, and the other end of the connector is welded to the elastic insertion groove.

4. The motor filter capacitor connection structure according to claim 3, characterized in that, One end of the resilient connector has a connecting protrusion configured to match a groove provided on the side wall of the brush sleeve, and the connecting protrusion is connected in the groove.

5. The motor filter capacitor connection structure according to claim 4, characterized in that, The connecting protrusion is welded to the groove.

6. The motor filter capacitor connection structure according to claim 1, characterized in that, The motor filter capacitor connection structure also includes threaded connectors; The annular circuit board has a through hole that allows the threaded connector to pass through. The through hole is configured to match the threaded hole on the end cap. The threaded connector passes through the through hole and connects to the threaded hole.

7. The motor filter capacitor connection structure according to claim 6, characterized in that, The back of the annular circuit board has a grounding point, and the position of the grounding point corresponds to the position of the through hole; When the threaded connector passes through the through hole and connects to the threaded hole, the grounding point is electrically connected to the end cap.

8. The motor filter capacitor connection structure according to claim 1, characterized in that, The plurality of connectors are arranged at different distances along the circumference of the annular circuit board.

9. The motor filter capacitor connection structure according to claim 1, characterized in that, The resilient connector is a connector made of copper alloy.

10. An electric motor, characterized in that, Includes the motor filter capacitor connection structure as described in any one of claims 1-9.

Images