Stepping motor encoder

Abstract

The utility model discloses a stepping motor encoder, comprising a stepping motor body, the front side of the stepping motor body is provided with a heat dissipation mechanism, the heat dissipation mechanism comprises an encoder body which is fixedly installed at the front end of the stepping motor body and is close to the center position, the front end of the stepping motor body is fixedly provided with a protective cover, and the front end of the stepping motor body is provided with a heat dissipation mechanism. A plurality of groups of exhaust outlets are formed in the outer side of the protective cover, fixing blocks are fixedly arranged at the positions, close to the two sides, of the inner side of the protective cover, mounting frames are fixedly arranged on the inner sides of the two groups of fixing blocks, and cooling fans are mounted on the inner sides of the mounting frames. According to the stepping motor encoder of the utility model, the encoder body is subjected to heat dissipation in a circulating manner, so that heat can be prevented from being accumulated in the encoder body, and the aging rate of an internal circuit of the encoder body can be slowed down, and therefore, the service life of the encoder body can be prolonged, and the encoder body can be prevented from being burnt easily; the use efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stepping motors, in particular to a stepping motor encoder. Background Art

[0002] A stepper motor is an electric motor that converts an electrical pulse signal into a corresponding angular displacement or linear displacement. Each time a pulse signal is input, the rotor rotates an angle or moves forward one step. The angular displacement or linear displacement output is proportional to the number of pulses input, and the speed is proportional to the pulse frequency. Therefore, a stepper motor is also called a pulse motor. A stepper motor is also called a pulse motor. Based on the most basic electromagnet principle, it is an electromagnet that can rotate freely. Its operating principle is to generate electromagnetic torque by relying on the change of air gap magnetic permeability. In the early 20th century, stepper motors were widely used in telephone automatic exchanges. Due to the development of the European Industrial Revolution, stepper motors have been widely used in independent systems such as ships and aircraft that lack AC power. The invention of transistors in the late 1950s was gradually applied to stepper motors, making digital control easier. After the 1980s, due to the emergence of cheap microcomputers with multifunctional postures, the control methods of stepper motors became more flexible and diverse. Existing stepper motor encoders generate a lot of heat during operation. If the heat is not dissipated in time, the heat will accumulate inside the encoder and accelerate the aging rate of the internal circuit of the encoder. This will not only shorten the service life of the encoder, but once the temperature exceeds the upper limit of the encoder, it will easily cause the encoder to burn out, which has great limitations. Utility Model Content

[0003] The main purpose of the utility model is to provide a stepping motor encoder, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A stepper motor encoder comprises a stepper motor body, a heat dissipation mechanism is arranged on the front side of the stepper motor body, the heat dissipation mechanism comprises an encoder body fixedly mounted at a position near the center of the front end of the stepper motor body, a protective cover is fixedly arranged at the front end of the stepper motor body, a plurality of exhaust ports are arranged on the outer side of the protective cover, fixed blocks are fixedly arranged on the inner side of the protective cover near both sides, a mounting frame is fixedly arranged on the inner side of the two groups of the fixed blocks, a heat dissipation fan is installed on the inner side of the mounting frame, a heat conducting fin is fixedly arranged on the inner side of the protective cover near the rear side of the mounting frame, and the rear end of the heat conducting fin is close to the rear end of the mounting frame. A heat conducting plate is fixedly connected to the front end of the encoder body, a heat dissipation pipe is fixedly arranged inside the heat conducting fins, a liquid storage chamber is fixedly connected to one end of the protective cover, an installation chamber is fixedly connected to the lower corner of the liquid storage chamber, a circulating pump is fixedly installed on the inner side of the installation chamber, a connecting pipe is fixedly connected to the lower end of the circulating pump, a cover body is movably arranged at the upper end of the liquid storage chamber near the rear side, a cover plate is movably connected to the front side of the protective cover, a plurality of groups of air inlets are provided on the inner side of the cover plate, blocks are fixedly connected to the rear end of the cover plate near the two sides, and card slots are provided on the front side of the protective cover corresponding to the two groups of card blocks.

[0006] Preferably, the rear end of the encoder body is in contact with the heat conducting plate, the shape of the heat conducting fins is a grid type, and the heat conducting plate is adapted to the encoder body.

[0007] Preferably, both sides of the heat dissipation pipe are respectively connected with the liquid storage chamber and the circulation pump, and refrigerant is arranged inside the heat dissipation pipe, the liquid storage chamber, the circulation pump and the connecting pipe.

[0008] Preferably, the liquid storage chamber is made of heat-conductive metal material, and the two sides of the circulation pump are respectively connected to the liquid storage chamber and the circulation pump.

[0009] Preferably, the air inlet is configured for dust-proof ventilation.

[0010] Preferably, the card block is engaged with the card slot.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The encoder body is cooled by reciprocating cycles to achieve timely heat dissipation of the encoder body, avoiding heat accumulation inside the encoder body, and then slowing down the aging rate of the internal circuit of the encoder body, thereby increasing the service life of the encoder body, preventing it from being easily burned, and improving its use efficiency.

[0013] 2. Clean the cover by buckling the two groups of card blocks from the inside of the two groups of card slots. The refrigerant inside the liquid storage chamber may be damaged after long-term use. The cover can be replaced by rotating it to achieve the purpose of continuous use of the heat dissipation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a stepping motor encoder of the utility model;

[0015] Figure 2 It is a partial cross-sectional structural schematic diagram of a stepping motor encoder of the utility model;

[0016] Figure 3 This is a schematic diagram of a partial explosion structure of a heat dissipation mechanism of a stepping motor encoder of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the A-part amplification structure of a stepping motor encoder.

[0018] In the figure: 1. stepper motor body; 2. heat dissipation mechanism; 21. encoder body; 22. protective cover; 23. exhaust port; 24. fixing block; 25. mounting frame; 26. cooling fan; 27. heat conducting fins; 28. heat conducting plate; 29. ​​heat dissipation pipe; 210. liquid storage chamber; 211. mounting chamber; 212. circulation pump; 213. connecting pipe; 214. cover body; 215. cover plate; 216. air inlet; 217. card block; 218. card slot. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-4As shown, a stepper motor encoder comprises a stepper motor body 1, a heat dissipation mechanism 2 is arranged on the front side of the stepper motor body 1, the heat dissipation mechanism 2 comprises an encoder body 21 fixedly mounted at the front end of the stepper motor body 1 near the center, a protective cover 22 is fixedly mounted at the front end of the stepper motor body 1, a plurality of groups of exhaust ports 23 are provided on the outer side of the protective cover 22, fixing blocks 24 are fixedly mounted on the inner side of the protective cover 22 near the two sides, a mounting frame 25 is fixedly mounted on the inner side of the two groups of fixing blocks 24, a heat dissipation fan 26 is installed on the inner side of the mounting frame 25, a heat conducting fin 27 is fixedly mounted on the inner side of the protective cover 22 near the rear side of the mounting frame 25, and the rear end of the heat conducting fin 27 is near the front end of the encoder body 21. A heat conducting plate 28 is fixedly connected to the protective cover 22, and a heat dissipation pipe 29 is fixedly arranged inside the heat conducting fins 27. A liquid storage chamber 210 is fixedly connected to one end of the protective cover 22, and an installation chamber 211 is fixedly connected to the lower corner of the liquid storage chamber 210. A circulating pump 212 is fixedly installed on the inner side of the installation chamber 211, and a connecting pipe 213 is fixedly connected to the lower end of the circulating pump 212. A cover body 214 is movably arranged near the rear side of the upper end of the liquid storage chamber 210, and a cover plate 215 is movably connected to the front side of the protective cover 22. A plurality of groups of air inlets 216 are provided on the inner side of the cover plate 215, and blocks 217 are fixedly connected to the rear end of the cover plate 215 near the two sides, and card slots 218 are provided on the front side of the protective cover 22 corresponding to the two groups of card blocks 217.

[0021] In this embodiment, the rear end of the encoder body 21 is in contact with the heat conducting plate 28, the shape of the heat conducting fins 27 is a grid type, the heat conducting plate 28 is adapted to the encoder body 21, and the two sides of the heat dissipation pipe 29 are respectively connected to the liquid storage chamber 210 and the circulating pump 212, and the heat dissipation pipe 29 and the liquid storage chamber 210, the circulating pump 212, and the inner side of the connecting pipe 213 are all provided with refrigerant, the liquid storage chamber 210 is made of heat-conductive metal, and the two sides of the circulating pump 212 are respectively connected to the liquid storage chamber 210 and the circulating pump 212, the air inlet 216 is a dust-proof ventilation arrangement, and the card block 217 is engaged with the card slot 218.

[0022] Specifically, firstly, the circulating pump 212 installed inside the installation chamber 211 is started to make the refrigerant arranged inside the liquid storage chamber 210 circulate inside the heat dissipation pipe 29, and at the same time, the heat dissipation fan 26 installed inside the installation frame 25 is started to make the air with lower temperature outside the cover plate 215 flow into the inner side of the protective cover 22 from the inner side of the air inlet 216 of several groups, and when passing through the heat-conducting fins 27, the heat-conducting fins 27 are cooled by the refrigerant inside the heat-conducting pipe 29, and then the air passing through the heat-conducting fins 27 is further cooled by conduction, so that the heat around the encoder body 21 is dissipated as a whole, and the heat of the encoder body 21 can be directly transferred to the inner side of the heat-conducting fins 27 by the heat-conducting plate 28 for rapid cooling, and the air heated by the heat conduction of the encoder body 21 will eventually be discharged from the exhaust ports 23 of several groups, and the refrigerant after the heat conduction by the air will flow into the liquid storage chamber 210. On the inside, a large amount of refrigerant and the heat-conducting material of the liquid storage chamber 210 are used to quickly restore it to its original low-temperature state, and the encoder body 21 is used for heat dissipation in a reciprocating manner, thereby achieving timely heat dissipation of the encoder body 21 and avoiding heat accumulation inside the encoder body 21, thereby slowing down the aging rate of the internal circuit of the encoder body 21, thereby increasing the service life of the encoder body 21, preventing it from being easily burned, and improving the use efficiency. In addition, after using the heat dissipation mechanism 2 for a long time, the several groups of air inlets 216 opened on the inside of the cover plate 215 may be blocked by dust, affecting the use efficiency. At this time, the two groups of card blocks 217 can be buckled out from the inside of the two groups of card slots 218, and the cover plate 215 can be cleaned. The refrigerant inside the liquid storage chamber 210 may be damaged after long-term use, and it can be replaced by rotating the cover body 214 to achieve the purpose of facilitating the continuous use of the heat dissipation mechanism 2.

[0023] Working principle:

[0024] When in use, first start the circulation pump 212 installed on the inner side of the installation chamber 211 to make the refrigerant set on the inner side of the liquid storage chamber 210 circulate on the inner side of the heat dissipation pipe 29, and at the same time start the cooling fan 26 installed on the inner side of the installation frame 25 to make the air with lower temperature on the outer side of the cover plate 215 flow into the inner side of the protective cover 22 from the inner side of the plurality of groups of air inlets 216. When passing through the heat-conducting fins 27, the heat-conducting fins 27 are cooled by the refrigerant on the inner side of the heat-conducting pipes 29, and then the air passing through the heat-conducting fins 27 is further cooled by conduction, so that the heat around the encoder body 21 is dissipated as a whole, and the heat of the encoder body 21 can be directly transferred by the heat-conducting plate 28 to the inner side of the heat-conducting fins 27 for rapid cooling, and the air heated by the heat conduction of the encoder body 21 will eventually be discharged from the plurality of groups of exhaust ports 23, and the refrigerant after the heat conduction by the air will flow into the liquid storage chamber 210. On the inside, a large amount of refrigerant and the heat-conducting material of the liquid storage chamber 210 are used to quickly restore it to its original low-temperature state, and the encoder body 21 is used for heat dissipation in a reciprocating manner, thereby achieving timely heat dissipation of the encoder body 21 and avoiding heat accumulation inside the encoder body 21, thereby slowing down the aging rate of the internal circuit of the encoder body 21, thereby increasing the service life of the encoder body 21, preventing it from being easily burned, and improving the use efficiency. In addition, after using the heat dissipation mechanism 2 for a long time, the several groups of air inlets 216 opened on the inside of the cover plate 215 may be blocked by dust, affecting the use efficiency. At this time, the two groups of card blocks 217 can be buckled out from the inside of the two groups of card slots 218, and the cover plate 215 can be cleaned. The refrigerant inside the liquid storage chamber 210 may be damaged after long-term use, and it can be replaced by rotating the cover body 214 to achieve the purpose of facilitating the continuous use of the heat dissipation mechanism 2.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A stepper motor encoder, comprising a stepper motor body (1), characterized in that: A heat dissipation mechanism (2) is arranged at the front side of the stepper motor body (1), and the heat dissipation mechanism (2) comprises an encoder body (21) fixedly mounted at a position near the center of the front end of the stepper motor body (1); a protective cover (22) is fixedly mounted at the front end of the stepper motor body (1); a plurality of groups of exhaust ports (23) are provided on the outer side of the protective cover (22); fixed blocks (24) are fixedly mounted on the inner side of the protective cover (22) near both sides; mounting frames (25) are fixedly mounted on the inner side of the two groups of the fixing blocks (24); a heat dissipation fan (26) is mounted on the inner side of the mounting frame (25); a heat conducting fin (27) is fixedly mounted on the inner side of the protective cover (22) near the rear side of the mounting frame (25); a heat conducting plate (28) is fixedly connected to the rear end of the heat conducting fin (27) near the front end of the encoder body (21); A heat dissipation pipe (29) is fixedly arranged inside the heat-conducting fin (27); one end of the protective cover (22) is fixedly connected to a liquid storage chamber (210); a mounting chamber (211) is fixedly connected to a lower corner of the liquid storage chamber (210); a circulating pump (212) is fixedly installed inside the mounting chamber (211); a connecting pipe (213) is fixedly connected to the lower end of the circulating pump (212); a cover body (214) is movably arranged near the rear side of the upper end of the liquid storage chamber (210); a cover plate (215) is movably connected to the front side of the protective cover (22); a plurality of groups of air inlets (216) are provided on the inner side of the cover plate (215); a clamping block (217) is fixedly connected to the rear end of the cover plate (215) near both sides; and a clamping groove (218) is provided on the front side of the protective cover (22) at positions corresponding to the two groups of clamping blocks (217).

2. A stepper motor encoder according to claim 1, characterized in that: The rear end of the encoder body (21) is in contact with the heat conducting plate (28), the heat conducting fins (27) are in a grid shape, and the heat conducting plate (28) is compatible with the encoder body (21).

3. A stepper motor encoder according to claim 1, characterized in that: Both sides of the heat dissipation pipe (29) are respectively connected to the liquid storage chamber (210) and the circulation pump (212); and refrigerant is provided inside the heat dissipation pipe (29), the liquid storage chamber (210), the circulation pump (212), and the connecting pipe (213).

4. A stepper motor encoder according to claim 1, characterized in that: The liquid storage chamber (210) is made of a heat-conducting metal material, and two sides of the circulation pump (212) are respectively connected to the liquid storage chamber (210) and the circulation pump (212).

5. A stepper motor encoder according to claim 1, characterized in that: The air inlet (216) is provided for dust-proof ventilation.

6. A stepper motor encoder according to claim 1, characterized in that: The clamping block (217) is engaged with the clamping slot (218).

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