Commutator with air cooling function

Abstract

The utility model relates to the technical field of commutators, and discloses a commutator with an air cooling function, which comprises a commutator main body, a heat dissipation structure and a clamping structure, and is characterized in that the commutator main body comprises a base body and commutator segments, one side of the base body is fixedly provided with a plurality of commutator segments which are rotatably distributed around the axis of the base body; a mounting groove is formed in the upper surface of the commutator segment, a clamping structure is arranged on the inner surface of the mounting groove and comprises a handle, a buckle and a spring, one end of the handle penetrates through one side of the base body to be attached to one side of the buckle, the spring is fixedly mounted on one side of the buckle, and the other end of the spring is attached to the inner surface of the mounting groove. According to the utility model, through the clamping structure installed between the commutator main body and the heat radiation structure, the heat radiation structure can be rapidly disassembled when the heat radiation structure is damaged and needs to be replaced, thereby greatly saving operation time.

Description

Technical Field

[0001] The utility model relates to the technical field of commutators, in particular to a commutator with an air cooling function. Background Art

[0002] Commutator, also known as "rectifier". An important part of the armature of DC motors and AC commutator motors. Many copper sheets separated by mica sheets form a cylindrical or disc shape, and each copper sheet is connected to several armature winding elements. When the armature rotates, the copper sheets successively contact the fixed brushes. In DC motors, the AC in the armature winding is converted into DC between the brushes through brushes and commutators. In AC commutator motors, the frequency of the AC between the brushes meets the working requirements.

[0003] The utility model patent application document with publication number "CN217984013U" discloses a commutator, which is mainly composed of commutator segments, insulating sheets, bakelite powder, a long strip body, a first dovetail portion, a second dovetail portion and a third dovetail portion. This technical solution has the advantage of improving the adhesion of bakelite powder, solves the problem of reducing the inter-segment difference of the commutator segments during operation of the existing commutator, improves the mechanical properties of the commutator, and ensures that the commutator does not jump or fly during operation.

[0004] The commutator disclosed in the above document has the following defects: after the commutator has been used for a period of time, the body of the commutator easily generates heat during long-term operation, and the body of the commutator cannot be cooled. Since the heat dissipation structure is mostly fixed at one end of the commutator body by bolts, the process of replacing the heat dissipation structure is relatively troublesome.

[0005] It can be seen from this that the existing commutator cannot easily replace the heat dissipation structure, and it is necessary to improve the existing shortcomings and provide a commutator with air cooling function. Utility Model Content

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a commutator with air cooling function, comprising a commutator body, a heat dissipation structure and a snap-fit ​​structure, wherein the commutator body comprises a substrate and a commutator segment, one side of the substrate is fixedly mounted with the commutator segment, the commutator segment is set to be a plurality of segments and is distributed in rotation about the axis of the substrate, an installation groove is provided on the upper surface of the commutator segment, the inner surface of the installation groove is provided with a snap-fit ​​structure, the snap-fit ​​structure comprises a handle, a buckle and a spring, one end of the handle passes through one side of the substrate and is fitted with one side of the buckle, a spring is fixedly mounted on one side of the buckle, and the other end of the spring is fitted with the inner surface of the installation groove.

[0008] Furthermore, the heat dissipation structure includes a shell, a connecting rod, a bearing, a fan blade and a rotating shaft. A connecting rod is fixedly installed on the upper end of the shell, and the connecting rods are set to four and evenly distributed. A bearing is fixedly installed on one end of the connecting rod, and a rotating shaft is rotatably connected to the axis of the bearing. A fan blade is installed on the other end of the rotating shaft, and the fan blades are set to three and evenly distributed.

[0009] Furthermore, a clamping groove is provided on the inner surface of the shell, and the inner surface of the clamping groove abuts against the outer surface of the buckle.

[0010] Furthermore, the number of the mounting slots is set to three and they are evenly distributed, and a snap-fit ​​structure is provided inside each of the mounting slots.

[0011] Furthermore, the lower end of the commutator segment is set to be in a dovetail shape.

[0012] Furthermore, the outer surface of the commutator body is coated with a wear-resistant coating.

[0013] The utility model has the following beneficial effects:

[0014] (1) The utility model uses a snap-fit ​​structure installed between the commutator body and the heat dissipation structure, so that when the heat dissipation structure is damaged and needs to be replaced, the heat dissipation structure can be quickly disassembled, which greatly saves operation time.

[0015] (2) The utility model controls the temperature of the device through the heat dissipation structure, which can reduce the damage and aging of the internal components of the device caused by heat, thereby extending the service life of the device.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the commutator body of the utility model;

[0020] Figure 3 This is a cross-sectional view of the commutator body of the utility model;

[0021] Figure 4This is a schematic diagram of the heat dissipation structure of the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. commutator body; 101. base; 102. commutator segment; 2. heat dissipation structure; 201. housing; 202. connecting rod; 203. bearing; 204. fan segment; 205. rotating shaft; 206. snap-fit ​​groove; 3. snap-fit ​​structure; 301. handle; 302. buckle; 303. spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 As shown, the utility model is a commutator with air cooling function, including a commutator body 1, a heat dissipation structure 2 and a clamping structure 3. The commutator body 1 includes a substrate 101 and a commutator segment 102. The commutator segment 102 is fixedly installed on one side of the substrate 101. The commutator segment 102 is set to be a plurality of segments and is distributed in rotation about the axis of the substrate 101. A mounting groove is opened on the upper surface of the commutator segment 102. The inner surface of the mounting groove is provided with a clamping structure 3. The clamping structure 3 includes a handle 301, a buckle 302 and a spring 303. One end of the handle 301 passes through one side of the substrate 101 and fits with one side of the buckle 302. A spring 303 is fixedly installed on one side of the buckle 302. The other end of the spring 303 fits with the inner surface of the mounting groove.

[0026] The heat dissipation structure 2 includes a shell 201, a connecting rod 202, a bearing 203, a fan blade 204 and a rotating shaft 205. The connecting rod 202 is fixedly installed on the upper end of the shell 201, and the connecting rod 202 is set to four and evenly distributed. A bearing 203 is fixedly installed on one end of the connecting rod 202, and the rotating shaft 205 is rotatably connected at the axis of the bearing 203. The fan blade 204 is installed on the other end of the rotating shaft 205, and the fan blade 204 is set to three and evenly distributed.

[0027] The inner surface of the housing 201 is provided with a snap-fitting groove 206 , and the inner surface of the snap-fitting groove 206 abuts against the outer surface of the buckle 302 .

[0028] There are three mounting slots which are evenly distributed, and a snap-fit ​​structure 3 is disposed inside each mounting slot.

[0029] The outer surface of the commutator body 1 is coated with a wear-resistant coating.

[0030] When in use, first squeeze the handle 301 installed at one end of the base 101, then the handle 301 slides toward the axis of the base 101, and the spring 303 at one end of the handle 301 drives the buckle 302 to slide synchronously, and then the heat dissipation structure 2 is installed on the upper surface of the base 101, and then the handle 301 is released to make the outer surface of the buckle 302 fit with the inner surface of the snap-fit ​​groove 206. The snap-fit ​​structure 3 installed between the commutator body 1 and the heat dissipation structure 2 can quickly disassemble the heat dissipation structure 2 when the heat dissipation structure 2 is damaged and needs to be replaced, which greatly saves the operation time, and then the heat dissipation structure 2 is started to dissipate the commutator body 1, and the temperature of the equipment is controlled by the heat dissipation structure 2. The heat dissipation structure 2 can reduce the damage and aging of the internal components of the equipment caused by heat, thereby extending the service life of the equipment.

[0031] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A commutator with air cooling function, comprising a commutator body (1), a heat dissipation structure (2) and a clamping structure (3), characterized in that: The commutator body (1) comprises a base (101) and a commutator segment (102); the commutator segment (102) is fixedly mounted on one side of the base (101); the commutator segment (102) is set to be a plurality of segments and is rotatably distributed about the axis of the base (101); a mounting groove is provided on the upper surface of the commutator segment (102); and a clamping structure (3) is provided on the inner surface of the mounting groove; The snap-fit ​​structure (3) comprises a handle (301), a buckle (302) and a spring (303); one end of the handle (301) passes through one side of the base (101) and fits with one side of the buckle (302); a spring (303) is fixedly mounted on one side of the buckle (302); and the other end of the spring (303) fits with the inner surface of the mounting groove.

2. The commutator with air cooling function according to claim 1, characterized in that: The heat dissipation structure (2) comprises a housing (201), a connecting rod (202), a bearing (203), a fan blade (204) and a rotating shaft (205); a connecting rod (202) is fixedly mounted on the upper end of the housing (201); the connecting rods (202) are set to be four and evenly distributed; a bearing (203) is fixedly mounted on one end of the connecting rod (202); the rotating shaft (205) is rotatably connected to the axis of the bearing (203); a fan blade (204) is mounted on the other end of the rotating shaft (205); the fan blades (204) are set to be three and evenly distributed.

3. The commutator with air cooling function according to claim 2, characterized in that: The inner surface of the housing (201) is provided with a snap-fit ​​groove (206), and the inner surface of the snap-fit ​​groove (206) abuts against the outer surface of the buckle (302).

4. The commutator with air cooling function according to claim 1, characterized in that: The number of the installation slots is set to three and they are evenly distributed, and a snap-fit ​​structure (3) is provided inside each of the installation slots.

5. The commutator with air cooling function according to claim 1, characterized in that: One end of the commutator segment (102) is set in a dovetail shape.

6. The commutator with air cooling function according to claim 1, characterized in that: The outer surface of the commutator body (1) is coated with a wear-resistant coating.

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