An overheat protection device for motor carbon brushes

Abstract

This utility model provides an overheat protection device for motor carbon brushes, comprising: a carbon brush body, a protective cover, a through groove, a heat dissipation assembly, and a protective assembly. The protective cover is fitted onto the surface of the carbon brush body, and the through groove is formed on the surface of the protective cover. The heat dissipation assembly is disposed inside the through groove and includes a heat dissipation mesh, two positioning blocks, two positioning slots, and two fixing bolts. The heat dissipation mesh is disposed inside the through groove, the two positioning blocks are respectively connected to both ends of the heat dissipation mesh, and the two positioning slots are respectively formed on the surface of the protective cover. This utility model provides an overheat protection device for motor carbon brushes. By providing a heat dissipation mesh, two positioning blocks, two positioning slots, and two fixing bolts on the surface of the protective cover with the through groove, when the carbon brush body generates heat after prolonged operation inside the motor, the heat will flow to the outside of the protective cover through the heat dissipation mesh, thus preventing heat from remaining inside the protective cover and being unable to flow.

Description

Technical Field

[0001] This utility model relates to the field of motor carbon brushes, and in particular to a motor carbon brush overheat protection device. Background Technology

[0002] Motor carbon brushes are devices used on motor commutators or slip rings that slide in contact with the surface of rotating parts to transfer electrical energy. In DC motors, they work with the commutator to convert the DC power from the external circuit into the alternating current required by the internal windings of the motor, enabling the motor to rotate continuously. In AC motors, carbon brushes are mainly used to introduce or extract current into the rotor windings of wound-rotor motors to regulate the motor's performance.

[0003] When existing motor carbon brushes are installed inside the motor, a protective cover is installed on the surface of the carbon brush for auxiliary operation in order to protect the carbon brush. However, when the protective cover is placed on the surface of the carbon brush, the carbon brush is in contact with the internal equipment of the motor. After a long period of use, the temperature will increase, and the increased temperature cannot be dissipated from inside the protective cover.

[0004] Therefore, it is necessary to provide a motor carbon brush overheat protection device to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model provides an overheat protection device for motor carbon brushes, which solves the problem that when the protective cover is placed on the surface of the carbon brush, the carbon brush will increase in temperature after a long period of use due to contact with the internal equipment of the motor, and the increased temperature cannot be dissipated from inside the protective cover.

[0006] To solve the above-mentioned technical problems, this utility model provides a motor carbon brush overheat protection device, comprising:

[0007] Carbon brush body, protective cover, through groove, heat dissipation component and protective component;

[0008] The protective cover is fitted onto the surface of the carbon brush body, and the through groove is formed on the surface of the protective cover;

[0009] The heat dissipation component is disposed inside the through groove. The heat dissipation component includes a heat dissipation mesh, two positioning blocks, two positioning slots and two fixing bolts. The heat dissipation mesh is disposed inside the through groove. The two positioning blocks are respectively connected to the two ends of the heat dissipation mesh. The two positioning slots are respectively opened on the surface of the protective cover.

[0010] Preferably, the two fixing bolts are respectively disposed between the two positioning blocks and the protective cover.

[0011] Preferably, the positioning block and the positioning groove are used for positioning the heat dissipation mesh during installation.

[0012] Preferably, a protective component is provided on the surface of the protective cover and above the heat dissipation mesh. The protective component includes two fixed plates and multiple protective plates, with the multiple protective plates respectively connected between the two fixed plates.

[0013] Preferably, an installation assembly is provided between the two fixing plates and the protective cover. The installation assembly includes a mounting sleeve, a mounting block, and bolts. The mounting sleeve is connected to the surface of the protective cover, and the mounting block is disposed inside the mounting sleeve and connected to the fixing plate.

[0014] Preferably, the bolt is disposed between the mounting sleeve and the mounting block.

[0015] Preferably, the mounting sleeve and the mounting block are used for the installation and removal of the protective assembly.

[0016] Compared with related technologies, the motor carbon brush overheat protection device provided by this utility model has the following advantages:

[0017] This utility model provides an overheat protection device for motor carbon brushes. A heat dissipation mesh, two positioning blocks, two positioning grooves, and two fixing bolts are set on the surface of a protective cover with through grooves. When the carbon brush body generates heat after working inside the motor for a long time, the heat will flow to the outside of the protective cover through the heat dissipation mesh on the surface of the protective cover, thereby preventing the heat from being trapped inside the protective cover and affecting the operation of the carbon brush body. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a first embodiment of a motor carbon brush overheat protection device provided by this utility model;

[0019] Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below;

[0020] Figure 3 for Figure 1 A first-view perspective three-dimensional structural diagram of the protective device shown;

[0021] Figure 4 for Figure 3 The enlarged schematic diagram of section B is shown below;

[0022] Figure 5 for Figure 1 A three-dimensional structural diagram of the protective device from a second perspective;

[0023] Figure 6 A schematic diagram of the second embodiment of a motor carbon brush overheat protection device provided by this utility model;

[0024] Figure 7 for Figure 6 The enlarged schematic diagram of section C is shown.

[0025] The diagram shows: 1. Carbon brush body; 2. Protective cover; 3. Through groove;

[0026] 4. Heat dissipation assembly; 41. Heat dissipation mesh; 42. Positioning block; 43. Positioning groove; 44. Fixing bolt;

[0027] 5. Protective components; 51. Fixing plate; 52. Protective plate;

[0028] 6. Mounting components; 61. Mounting sleeve; 62. Mounting block; 63. Bolts. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] First Embodiment

[0031] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a motor carbon brush overheat protection device provided by this utility model; Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below; Figure 3 for Figure 1 A first-view perspective three-dimensional structural diagram of the protective device shown;

[0032] Figure 4 for Figure 3 The enlarged schematic diagram of section B is shown below; Figure 5 for Figure 1 The diagram shows a second-view perspective three-dimensional structural schematic of the protection device. A motor carbon brush overheat protection device includes:

[0033] Carbon brush body 1, protective cover 2, through groove 3, heat dissipation component 4, and protective component 5;

[0034] The protective cover 2 is fitted onto the surface of the carbon brush body 1, and the through groove 3 is formed on the surface of the protective cover 2;

[0035] The heat dissipation component 4 is disposed inside the through groove 3. The heat dissipation component 4 includes a heat dissipation mesh 41, two positioning blocks 42, two positioning grooves 43 and two fixing bolts 44. The heat dissipation mesh 41 is disposed inside the through groove 3. The two positioning blocks 42 are respectively connected to the two ends of the heat dissipation mesh 41. The two positioning grooves 43 are respectively opened on the surface of the protective cover 2.

[0036] The through slot 3 facilitates the installation of the heat dissipation mesh 41. The use of the positioning block 42 and the positioning groove 43 facilitates the positioning of the heat dissipation mesh 41 during installation. When disassembling and cleaning the heat dissipation mesh 41, first remove the fixing bolt 44 between the positioning block 42 and the protective cover 2. After the fixing bolt 44 is removed, the heat dissipation mesh 41 can be separated from the protective cover 2 by pulling it to clean it.

[0037] The two fixing bolts 44 are respectively disposed between the two positioning blocks 42 and the protective cover 2.

[0038] The positioning block 42 and the positioning groove 43 are used for positioning the heat dissipation mesh 41 during installation.

[0039] A protective component 5 is provided on the surface of the protective cover 2 and above the heat dissipation mesh 41. The protective component 5 includes two fixing plates 51 and multiple protective plates 52, with the multiple protective plates 52 respectively connected between the two fixing plates 51.

[0040] Multiple protective plates 51 are diagonally connected between two fixed plates 51, and the fixed plates 51 are threadedly connected to the protective cover 2 by threaded bolts.

[0041] The working principle of the motor carbon brush overheat protection device provided by this utility model is as follows:

[0042] When in use, the carbon brush body 1 generates heat during operation, and the heat is dissipated to the outside through the heat dissipation mesh 41 inside the protective cover 2.

[0043] Compared with related technologies, the motor carbon brush overheat protection device provided by this utility model has the following advantages:

[0044] This utility model provides an overheat protection device for motor carbon brushes. A heat dissipation mesh 41, two positioning blocks 42, two positioning grooves 43, and two fixing bolts 44 are provided on the surface of a protective cover 2 with a through groove 3. When the carbon brush body 1 generates heat after working inside the motor for a long time, the heat will flow to the outside of the protective cover 2 through the heat dissipation mesh 41 on the surface of the protective cover 2, thereby preventing the heat from remaining inside the protective cover 2 and affecting the operation of the carbon brush body 1.

[0045] Second Embodiment

[0046] Please refer to the following: Figure 6 and Figure 7Based on the motor carbon brush overheat protection device provided in the first embodiment of this application, the second embodiment of this application proposes another motor carbon brush overheat protection device. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0047] Specifically, the second embodiment of this application provides a motor carbon brush overheat protection device that differs in that, in a motor carbon brush overheat protection device, an installation component 6 is provided between the two fixing plates 51 and the protective cover 2. The installation component 6 includes an installation sleeve 61, an installation block 62 and a bolt 63. The installation sleeve 61 is connected to the surface of the protective cover 2, and the installation block 62 is disposed inside the installation sleeve 61 and connected to the fixing plate 51.

[0048] The use of mounting sleeve 61 and mounting block 62 facilitates cleaning when the protective component 5 is installed between the protective cover 2. A threaded hole adapted to the bolt 63 is provided between mounting sleeve 61 and mounting block 62.

[0049] The bolt 63 is disposed between the mounting sleeve 61 and the mounting block 62.

[0050] The mounting sleeve 61 and the mounting block 62 are used for the installation and removal of the protective component 5.

[0051] The working principle of the motor carbon brush overheat protection device provided by this utility model is as follows:

[0052] When using the heat dissipation mesh 41, first remove the bolt 63 between the mounting sleeve 61 and the mounting block 62. After the bolt 63 is removed, pull the protective component 5 to separate the mounting block 62 from the mounting sleeve 61, and then remove the protective component 5 to disassemble and clean the heat dissipation mesh 41.

[0053] Compared with related technologies, the motor carbon brush overheat protection device provided by this utility model has the following advantages:

[0054] This utility model provides an overheat protection device for motor carbon brushes. An installation sleeve 61, an installation block 62, and a bolt 63 are provided between the protective cover 2 and the protective component 5 to facilitate the disassembly of the protective component 5 when the heat dissipation mesh 41 is disassembled and cleaned.

[0055] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A motor carbon brush overheat protection device, characterized in that, include: Carbon brush body, protective cover, through groove, heat dissipation component and protective component; The protective cover is fitted onto the surface of the carbon brush body, and the through groove is formed on the surface of the protective cover; The heat dissipation component is disposed inside the through groove. The heat dissipation component includes a heat dissipation mesh, two positioning blocks, two positioning slots and two fixing bolts. The heat dissipation mesh is disposed inside the through groove. The two positioning blocks are respectively connected to the two ends of the heat dissipation mesh. The two positioning slots are respectively opened on the surface of the protective cover.

2. The motor carbon brush anti-overheat protection device according to claim 1, characterized in that, The two fixing bolts are respectively disposed between the two positioning blocks and the protective cover.

3. The motor carbon brush anti-overheat protection device according to claim 1, characterized in that, The positioning block and the positioning groove are used for positioning the heat dissipation mesh during installation.

4. The motor carbon brush anti-overheat protection device according to claim 1, characterized in that, A protective component is provided on the surface of the protective cover and above the heat dissipation mesh. The protective component includes two fixed plates and multiple protective plates, with the multiple protective plates respectively connected between the two fixed plates.

5. The motor carbon brush anti-overheat protection device according to claim 4, characterized in that, An installation assembly is provided between the two fixing plates and the protective cover. The installation assembly includes a mounting sleeve, a mounting block, and bolts. The mounting sleeve is connected to the surface of the protective cover, and the mounting block is disposed inside the mounting sleeve and connected to the fixing plate.

6. The motor carbon brush anti-overheat protection device according to claim 5, characterized in that, The bolt is disposed between the mounting sleeve and the mounting block.

7. The motor carbon brush anti-overheat protection device according to claim 5, characterized in that, The mounting sleeve and the mounting block are used for the installation and removal of the protective components.

Images