Fixing structure of brush direct current motor gland spring piece

Abstract

The utility model discloses a fixing structure of a brush direct current motor gland spring piece, which comprises a spring piece (1) and a gland (3), the spring piece (1) and the gland (3) are connected through a connecting copper sheet (2), the connecting copper sheet (2) is split from the middle through a rivet head (4), and the two split connecting copper sheets (2) extend outwards to form a V shape, so that the spring piece (1) is firmly extruded and riveted on the gland (3); the spring piece (1) is preassembled on the connecting copper piece (2) of the gland (3), then is positioned on a positioning tool, and then is split and riveted by the rivet head (4); the rivet head (4) is of a sharp V-shaped structure; the angle of the V-shaped structure of the rivet head (4) is designed according to the requirements of parts. According to the utility model, the operation is simple, the assembly is convenient, preparation time and cleaning of part oxide layers are not needed, auxiliary materials are not needed, the assembly is reliable, and loosening is not easy, so that the production cost of the motor is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, specifically relating to a fixing structure for the pressure spring sheet of a brushed DC motor, which is applicable to all brushed DC motors. Background Technology

[0002] The current method of fixing the motor cover and spring plate is soldering, which welds the spring plate to the injection-molded connection on the cover. Soldering has problems such as poor soldering, missing solder, cold soldering, and air bubbles. It is also difficult to inspect. In addition, the harmful gases produced by soldering can harm the human body. More importantly, the parts are prone to oxidation, which can lead to poor soldering or even failure to solder.

[0003] like Figure 2 As shown, the spring sheet 1 is pre-installed on the connecting copper sheet 2 of the pressure cover 3, and then the two are soldered together. This requires auxiliary materials such as solder, soldering flux, and rosin, as well as a soldering iron. Preparation time is required, and the soldering iron tip needs to be cleaned from time to time during the process. If the surface of the parts is oxidized, an additional step of removing the oxide layer is required. Not only is the cost relatively high, but the efficiency is also low. More importantly, it is affected by the operator's skill, which increases the risk of poor soldering and makes it difficult to detect. Summary of the Invention

[0004] The purpose of this utility model is to provide a fixing structure for the spring sheet of a brushed DC motor cover. This structure can directly rivet the spring sheet to the cover, which not only saves auxiliary materials such as solder, soldering flux, and rosin, thus saving costs, but also simplifies auxiliary processes such as cleaning the solder head. Most importantly, it eliminates concerns about the oxidation of parts and improves production efficiency.

[0005] The technical solution of this utility model is:

[0006] A fixing structure for a brushed DC motor cover spring includes a spring and a cover. The spring and the cover are connected by a connecting copper sheet. The connecting copper sheet is split in the middle by a rivet head, and the two split connecting copper sheets expand outward into a V-shape, so that the spring is firmly riveted onto the cover.

[0007] Furthermore, after the spring sheet is pre-installed on the connecting copper sheet of the pressure cap, it is first placed on the positioning fixture for positioning, and then riveted with a rivet head.

[0008] Furthermore, the rivet head has a sharp V-shaped structure.

[0009] Furthermore, the angle of the V-shaped structure of the rivet head is designed according to the requirements of the part.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] The utility model discloses simple operation, convenient assembly, need not preparation time and clean part oxide layer, need not auxiliary material, and assembly is reliable, and not easy to loosen, thereby reduced motor's production cost. The utility model discloses main features lie in:

[0012] 1, the design of V-shaped rivet head, thereby firmly extruding riveting the spring piece on the gland.

[0013] 2, need not change the existing part structure;

[0014] 3, need not auxiliary material;

[0015] 4, not affected by part oxidation;

[0016] 5, can rivet multiple, and the efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram (including the plan view) of the utility model;

[0018] Figure 2 It is the structural schematic diagram (including the plan view) of prior art.

[0019] Marked in the drawing: 1, spring piece, 2, connecting copper sheet, 3, gland, 4, rivet head. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0021] In the description of the utility model, it is necessary to explain that, unless there is explicit provision and limitation, the term "installation", "connection", "connect" should be broad sense understanding, for example, can be fixed connection, can be detachable connection, or integrally connected;Can be mechanical connection, can be electrical connection;Can be directly connected, can be indirectly connected through intermediate medium, can be the intercommunication of two elements. For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0022] Please refer to the attached Figure 1The application discloses a fixing structure of a spring sheet of a brush DC motor gland, which adopts a riveting structure, the spring sheet 1 is preassembled on the connecting copper sheet 2 of the gland 3, then is placed on a positioning tool, and the rivet head 4 is a sharp V-shaped structure; the connecting copper sheet 2 is split from the middle, and the two split parts are expanded into V-shaped structure outward, so that the spring sheet 1 is firmly riveted on the gland 3; the angle of the V-shaped structure of the rivet head 4 is designed according to the requirement of the part.

[0023] The utility model discloses simple operation, convenient assembly, need not preparation time and clean part oxide layer, need not auxiliary material, and assembly reliable, not easy to loosen, thereby reduced the production cost of motor. The utility model discloses main features are: 1, the design of V-shaped rivet head, thereby firmly extruding riveting the spring sheet on the gland, 2, need not change the existing part structure, 3, need not auxiliary material, 4, not affected by part oxidation, 5, can rivet multiple, and the efficiency is higher.

[0024] The device embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. According to actual needs, part or all of the modules can be selected to achieve the purpose of the embodiment scheme. Those skilled in the art can understand and implement without creative labor.

[0025] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A fixing structure for a pressure cover spring sheet of a brushed DC motor, comprising a spring sheet (1) and a pressure cover (3), characterized in that: The spring sheet (1) and the pressure cap (3) are connected by a connecting copper sheet (2). The connecting copper sheet (2) is split in the middle by a rivet head (4). The two split connecting copper sheets (2) expand outward into a V shape, so that the spring sheet (1) is firmly riveted onto the pressure cap (3).

2. The fixing structure of the brushed DC motor cover spring sheet as described in claim 1, characterized in that: After the spring sheet (1) is pre-installed on the connecting copper sheet (2) of the pressure cover (3), it is first placed on the positioning fixture for positioning, and then riveted with the rivet head (4).

3. The fixing structure of the brushed DC motor cover spring sheet as described in claim 1, characterized in that: The rivet head (4) is a sharp V-shaped structure.

4. The fixing structure of the brushed DC motor cover spring sheet as described in claim 1, characterized in that: The angle of the V-shaped structure of the rivet head (4) is designed according to the requirements of the part.

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