Linear motor with good heat dissipation effect

Abstract

The utility model relates to the technical field of linear motors, and discloses a linear motor with a good heat dissipation effect, which comprises a motor main body, the outer wall of the motor main body is fixedly connected with a heat conduction protection shell, a plurality of shunting channels are arranged in the heat conduction protection shell, and one side of the heat conduction protection shell is connected with an air blowing assembly. According to the linear motor with the good heat dissipation effect, heat generated by the coil in the motor main body is conducted out through the heat conduction protection shell, so that the heat is taken away when external air passes through the shunting channel, the temperature of the motor main body is reduced, the contact area between the structure and the motor main body is large, and the heat dissipation effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of linear motors, in particular to a linear motor with good heat dissipation effect. Background Technique

[0002] A linear motor, also known as a linear electric machine, is a type of electric machine that directly converts the circular motion of a traditional rotary motor into linear motion. Compared with a rotary motor, the linear motor eliminates the conversion mechanism (such as gears, belts, screws, etc.) required to convert rotary motion into linear motion, thus achieving a simpler and more compact design, as well as more precise and smooth linear motion.

[0003] In the prior art, for example, the patent with the patent authorization announcement number CN219760837U discloses a cylindrical linear motor, including: a coil column, a permanent magnet sleeve and a housing coaxially arranged from inside to outside in sequence. There is a gap between the outer wall of the coil column and the inner wall of the permanent magnet sleeve; the coil column includes a coil column iron core, and a plurality of coil assemblies are arranged at intervals on the coil column iron core. A plurality of support channels are annularly and evenly arranged on the coil column iron core, and lead wire fixing frames are arranged in the support channels. The lead wires of the coil assemblies are fixedly arranged on the outer wall of the lead wire fixing frames. A first cooling medium channel for introducing a cooling medium is arranged inside the lead wire fixing frames, and a plurality of second cooling medium channels for introducing a cooling medium are annularly and evenly arranged on the coil column iron core; the permanent magnet sleeve includes permanent magnets, and the permanent magnets are fixedly arranged on the inner wall of the housing. In the process of relative movement between the permanent magnet sleeve and the coil column of this cylindrical linear motor, the risk of pipeline fatigue damage is eliminated.

[0004] Although the linear motor in the above patent can eliminate the risk of pipeline fatigue damage during the relative movement between the permanent magnet sleeve and the coil column, the existing linear motors still have certain defects: when the linear motor moves at high speed, the coils of the linear motor are very easy to generate heat, and at the same time, the coils of the linear motor are inside the linear motor, which makes it difficult to dissipate these heats. Therefore, it is very easy to cause the coils to overheat. Once the coils overheat, the working efficiency of the linear motor will be reduced. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a linear motor with good heat dissipation effect to solve the problems raised in the background technique and make the heat dissipation effect of the motor body better.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A linear motor with good heat dissipation effect, including a motor body, a heat-conducting protective shell is fixedly connected to the outer wall of the motor body, a plurality of shunt channels are opened inside the heat-conducting protective shell, and a blast component is connected to one side of the heat-conducting protective shell.

[0007] Furthermore, the air blowing assembly includes a heat dissipation fan and a mainstream channel. The heat dissipation fan is fixedly connected to the middle position of one side of the heat-conducting protective shell. The mainstream channel is located in the middle position of the heat-conducting protective shell. Both ends of the mainstream channel are connected to the diversion channel, and the air outlet of the heat dissipation fan is connected to the mainstream channel.

[0008] Furthermore, the distances between the branch channels on both sides of the main channel are equal, and the width of the main channel is equal to the width of the heat dissipation fan outlet.

[0009] Furthermore, both ends of the heat-conducting protective shell are fixedly connected with end plates, and the end plates are provided with air collecting channels penetrating therethrough, and one end of the air collecting channels close to the heat-conducting protective shell is connected with the diversion channel.

[0010] Furthermore, the diversion channels are distributed equidistantly.

[0011] Furthermore, the end of the air collecting channel away from the heat conductive protective shell is inclined toward the center of the motor body, the cross-section of the air collecting channel is open, and the width of the air collecting channel close to the heat conductive protective shell is greater than the width of the air collecting channel away from the heat conductive protective shell.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] This type of linear motor with good heat dissipation effect can dissipate the heat generated by the coil inside the motor body through the heat-conducting protective shell, so that the external air will take away the heat when passing through the diversion channel, thereby reducing the temperature of the motor body. The contact area between this structure and the motor body is large, and the heat dissipation effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a top cross-sectional view of the protective shell of the utility model;

[0016] Figure 3 A side sectional view of the utility model as a whole;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] In the figure: 1. Motor body; 2. Heat-conducting protective shell; 3. End plate; 4. Cooling fan; 5. Main flow channel; 6. Diversion channel; 7. Wind collection channel. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Please refer to Figures 1-4 , a linear motor with good heat dissipation effect, including a motor main body 1, a heat-conducting protective shell 2 is fixedly connected to the outer wall of the motor main body 1, a plurality of shunt channels 6 are opened inside the heat-conducting protective shell 2, and a blower assembly is connected to one side of the heat-conducting protective shell 2.

[0021] In the linear motor with good heat dissipation effect of the present utility model, the blower assembly injects cold air into the heat-conducting protective shell 2. At the same time, the heat-conducting protective shell 2 conducts out the heat generated by the internal coil of the motor main body 1. The cold air injected by the blower assembly will take away the heat when passing through the shunt channels 6, thereby reducing the temperature of the motor main body 1. Since the contact area between the heat-conducting protective shell 2 and the motor main body 1 is large, and the blower assembly improves the air flow rate, it has a good heat dissipation effect; in addition, the structure of the motor main body 1 in the present utility model is similar to that of a cylindrical linear motor structure disclosed in a patent with a patent authorization announcement number of CN219760837U in the prior art, so no more elaboration will be made here.

[0022] As Figure 1 and Figure 2 shown, the blower assembly includes a cooling fan 4 and a main flow channel 5. The cooling fan 4 is fixedly connected to the middle position on one side of the heat-conducting protective shell 2. The main flow channel 5 is located in the middle position of the heat-conducting protective shell 2. Both ends of the main flow channel 5 are communicated with the shunt channels 6, and the air outlet of the cooling fan 4 is communicated with the main flow channel 5.

[0023] As Figure 2 shown, the shunt channels 6 on both sides of the main flow channel 5 are equidistant, and the width of the main flow channel 5 is equal to the width of the air outlet of the cooling fan 4.

[0024] Specifically, after the cooling fan 4 blows cold air into the main flow channel 5, the cold air will enter the shunt channels 6 from the main flow channel 5. Since the space of the main flow channel 5 is larger than the space of the shunt channels 6, the air will automatically increase its flow rate when entering the shunt channels 6, so the heat dissipation effect is further improved.

[0025] As Figure 1 , Figure 3 and Figure 4 shown, end plates 3 are fixedly connected to both ends of the heat-conducting protective shell 2, and air collecting channels 7 are opened through the end plates 3. One end of the air collecting channel 7 close to the heat-conducting protective shell 2 is communicated with the shunt channel 6.

[0026] As Figure 2 shown, the shunt channels 6 are equally spaced.

[0027] As Figure 3 and Figure 4 shown, one end of the air collecting channel 7 away from the heat conduction protective shell 2 inclines towards the center position of the motor main body 1. The cross-section of the air collecting channel 7 is arranged in an open shape, and the width of the air collecting channel 7 near the heat conduction protective shell 2 is greater than the width of the air collecting channel 7 away from the heat conduction protective shell 2.

[0028] Specifically, the equally spaced shunt channels 6 enable the cold air to uniformly contact the heat conduction protective shell 2, facilitating the cold air to carry away the heat. After flowing out from the shunt channels 6, the cold air enters the air collecting channel 7. Since the air collecting channel 7 inclines towards the center position of the motor main body 1 (i.e., the magnetic axis position of the motor main body 1), the cold air blows towards the magnetic axis of the motor main body 1, making the surface of the magnetic axis cleaner and reducing the probability of dust entering the interior of the motor main body 1.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention.

Claims

1. A linear motor with good heat dissipation effect, comprising a motor body (1), characterized in that: The outer wall of the motor body (1) is fixedly connected with a heat-conducting protective shell (2), a plurality of flow-dividing channels (6) are provided inside the heat-conducting protective shell (2), and a blast assembly is connected to one side of the heat-conducting protective shell (2); The air blowing assembly comprises a heat dissipation fan (4) and a main flow channel (5); the heat dissipation fan (4) is fixedly connected to the middle position of one side of the heat conductive protective shell (2); the main flow channel (5) is located in the middle position of the heat conductive protective shell (2); both ends of the main flow channel (5) are connected to the branch flow channel (6); and the air outlet of the heat dissipation fan (4) is connected to the main flow channel (5).

2. A linear motor with good heat dissipation effect according to claim 1, characterized in that: The diversion channels (6) located on both sides of the main channel (5) are equidistant from each other, and the width of the main channel (5) is equal to the width of the air outlet of the cooling fan (4).

3. A linear motor with good heat dissipation effect according to claim 1 or 2, characterized in that: Both ends of the heat-conducting protective shell (2) are fixedly connected to end plates (3), and the interior of the end plates (3) is provided with a wind collecting channel (7) extending therethrough, and the wind collecting channel (7) is connected to the diversion channel (6) at one end close to the heat-conducting protective shell (2).

4. A linear motor with good heat dissipation effect according to claim 1 or 2, characterized in that: The diversion channels (6) are distributed at equal intervals.

5. A linear motor with good heat dissipation effect according to claim 3, characterized in that: The diversion channels (6) are distributed at equal intervals.

6. A linear motor with good heat dissipation effect according to claim 3, characterized in that: The end of the air collecting channel (7) away from the heat-conducting protective shell (2) is inclined toward the center of the motor body (1), the cross-section of the air collecting channel (7) is arranged in an open shape, and the width of the end of the air collecting channel (7) close to the heat-conducting protective shell (2) is greater than the width of the end of the air collecting channel (7) away from the heat-conducting protective shell (2).

7. A linear motor with good heat dissipation effect according to claim 5, characterized in that: The end of the air collecting channel (7) away from the heat-conducting protective shell (2) is inclined toward the center of the motor body (1), the cross-section of the air collecting channel (7) is arranged in an open shape, and the width of the end of the air collecting channel (7) close to the heat-conducting protective shell (2) is greater than the width of the end of the air collecting channel (7) away from the heat-conducting protective shell (2).

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