An optimized structure for external cooling of a motor

Abstract

The present invention relates to the field of motor technology, and discloses an optimized structure for external cooling of a motor, including a motor body, a base integrally formed at the lower end of the motor body, an output shaft rotatably arranged in the motor body, a rear cover provided at the rear side cover of the motor body, a plurality of heat dissipation fins fixed to the outside of the motor body, and a connecting ring pipe provided on the outside of the motor body. The present invention is arranged so that water automatically circulates during the operation of the motor body, the cavity space outside the extrusion layer is changed, a one-way valve is provided in the two outer tubes, and a one-way valve body is provided between the two sections of the connecting ring pipes, so that water enters the outer tube on one side and water exits the outer tube on the other side, and the water is circulated, and the connecting pipe is located between the two heat dissipation fins to absorb heat, and can achieve good heat dissipation in harsh environments and when the outer side of the motor body is covered, thereby avoiding damage to the inside of the motor body and extending the life of the motor body.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to an optimized structure for external cooling of a motor. Background Art

[0002] The motor will generate a lot of heat during operation. If the heat dissipation is not carried out in time, it will affect the performance of the motor. The usual practice is to install a fan at one end of the motor shaft. The rotation of the motor shaft drives the fan to rotate to generate wind force, blow away the heat, and cool the motor.

[0003] In the authorization announcement number CN211296414U, the name is a motor heat dissipation structure and a motor including the motor heat dissipation structure, which proposes a heat dissipation fan blade set on the rotor, a front cover and a rear cover each having a heat dissipation hole, the heat dissipation fan blade rotates around the motor shaft, and the heat dissipation hole is connected to the internal space of the motor and the external space of the motor. Such a setting solves the problem that the heat dissipation structure of the motor in the prior art has low heat dissipation efficiency and increases the size of the motor.

[0004] The above patent still uses air cooling and uses the fan to dissipate heat. The protective effect of the motor casing is small, and the inside of the motor is connected to the outside. Therefore, its scope of application will be limited and it can only be used in a relatively good environment. However, many harsh environments currently require motors to operate. For this reason, the motor surface needs to be well covered to avoid damage to the motor. In this way, the cooling of the heat generated by the motor is greatly limited, especially when the temperature is high. Based on the above problems, an optimized structure for external cooling of the motor is proposed. Summary of the invention

[0005] The object of the present invention is to provide an optimized structure for external cooling of a motor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an optimized structure for external cooling of a motor, comprising a motor body, a base integrally formed at the lower end of the motor body, an output shaft rotatably arranged in the motor body, a rear cover provided at the rear side cover of the motor body, a plurality of heat dissipation fins fixed to the outside of the motor body, a connecting ring pipe provided on the outside of the motor body, a rear end cover fixed to the rear end of the rear cover, a drive inner layer capable of changing water fixed inside the rear end cover, a plurality of connecting pipes connected between the drive inner layer and the connecting ring pipe, each of the connecting pipes being respectively located between two different heat dissipation fins;

[0007] There are two chambers in the driving inner layer, and the water is driven by the change of the size of the internal space of the two chambers.

[0008] Preferably, a concave layer arranged in a circumferential manner is provided on the outer side of the motor body, the connecting ring tube is arranged in two halves, and the two halves of the connecting ring tube are butt-jointed and clamped in the concave layer, and the upper ends of the two halves of the connecting ring tube are fixed with fixing plates, and the fixing plates are fixed to the motor body by bolts;

[0009] The two halves of the connecting ring pipe are both provided with limiting holes for extrusion connection, and a one-way valve body is connected between the two halves of the connecting ring pipe, so that the driving water can only move to one side.

[0010] Preferably, a threaded pipe end is fixed to one side of the connecting ring pipe, and the threaded pipe end is threadedly connected to one end of the connecting pipe, and a sealing arrangement is formed between the two.

[0011] Preferably, the connecting pipe is made of metal, and the outer side of the connecting pipe is in contact with the outer side of the motor body.

[0012] Preferably, a sealing layer is fixed to the other end of the connecting tube, a connecting end is fixed to one side of the driving inner layer, the inner side of the connecting end is arranged in a stepped surface, the connecting end and the connecting tube have one end of the sealing layer sleeved, and the sealing layer is squeezed against the inner wall of the connecting end, and the two are arranged in a sealed manner.

[0013] Preferably, a compression spring is fixed to the other side of the driving inner layer, the compression spring abuts against the inner wall of the rear end cover, and the compression spring is in a compressed state, and the driving connecting end is compressed with the sealing layer under the action of the compression spring;

[0014] The outer wall of the driving inner layer circumference contacts the inner wall of the rear end cover.

[0015] Preferably, an outer wall 1 arranged in an annular manner is fixed on the inner wall of one side of the driving inner layer, and a gap is provided between the outer wall 1 and the inner wall of the other side of the driving inner layer, and a chamber 1 is formed between the driving inner layer and the outer wall 1 through the outer wall 1, and the interior of the chamber 1 is connected with the connecting end;

[0016] The inner driving layer has an outer wall 2 formed integrally with the outer wall 1 in the longitudinal direction, the outer wall 2 divides the inner driving layer into two halves, and the spaces on both sides of the outer wall 2 are not connected, and the space between the outer wall 2 and the outer wall 1 is the chamber 2;

[0017] The chambers 2 on both sides are respectively connected with the chambers 1 on both sides, and an extrusion layer is fitted inside the chamber 2, a force-bearing rod is fixed inside the extrusion layer, the force-bearing rod extends out of the driving inner layer, the force-bearing rod is extruded with the back cover, a return spring is fixed outside the extrusion layer, the outer side of the return spring is extruded with the driving inner layer, and the return spring is in an extruded state;

[0018] Two outer tubes are fixed on the outside of the driving inner layer, and the two outer tubes are respectively located on both sides of the second outer wall. One-way valves are fixed in the two outer tubes, and the two one-way valves face the direction of the water flow.

[0019] Preferably, the outer side of the extrusion layer is provided as a smooth rubber layer, and the inner wall of the second chamber is provided as a smooth one.

[0020] Preferably, the output shaft extends out of the rear cover, and a rotating plate is provided at the rear end of the output shaft, and two symmetrical driving rods are fixed to the outside of the rotating plate. The driving rods rotate with the output shaft, and the driving rods can squeeze the force-bearing rod to realize reciprocating motion of the force-bearing rod, and the edges of the driving rod and the force-bearing rod are both arranged in an arc shape.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The present invention arranges automatic water circulation during the operation of the motor body, and the cavity space outside the extrusion layer is changed. A one-way valve is provided inside the two outer tubes and a one-way valve body is provided between the two sections of the connecting ring tubes, so that water can enter the outer tube on one side and exit the outer tube on the other side, thereby circulating the water. The connecting tube is located between the two heat dissipation fins to absorb heat. In the case of harsh environment and the case of the outer side of the motor body being coated, good heat dissipation can be achieved, thereby avoiding damage to the inside of the motor body and extending the life of the motor body.

[0023] (2) The present invention arranges water to continuously move along the surface of the motor body, and the two halves of the connecting ring pipe divide the multiple connecting pipes into left and right sides. The connecting pipes on both sides are one in and one out, which is convenient for water circulation. The contact area between water and the outer side of the motor body is increased, and the heat dissipation effect is better achieved.

[0024] (3) The present invention arranges a connecting tube between two heat dissipation fins, and squeezes the sealing layer and the connecting end on the connecting tube under the action of the extrusion spring, thereby limiting the connecting tube, so that the connecting tube can be connected to the outside of the connecting ring tube through rotation, so that the connecting tube is located between the two heat dissipation fins, which is convenient for limiting the position.

[0025] (4) The present invention sets a relatively high flow rate for water circulation. The space inside the two chambers on both sides changes under the action of the squeezing layers on both sides. The space for realizing water circulation changes is relatively increased, and the amount of water circulation is also increased. The water in the circulation maintains a relatively low temperature and can conduct heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the connecting ring pipe structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the entire structure of the connecting ring pipe of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the inner driving layer of the present invention;

[0030] Figure 5 For the present invention Figure 4 A is a schematic diagram of the partially enlarged structure of the middle part;

[0031] Figure 6 This is a schematic diagram of the internal structure of the driving inner layer of the present invention;

[0032] Figure 7 It is a schematic diagram of the rear side structure of the rear cover of the present invention;

[0033] Figure 8 This is a schematic diagram of the half-section structure of the driving inner layer of the present invention.

[0034] In the figure: 1. motor body; 11. concave layer; 2. base; 3. heat dissipation fins; 4. output shaft; 41. rotating plate; 42. driving lever; 5. back cover; 6. rear end cover; 7. connecting ring pipe; 71. fixing plate; 72. limiting hole; 73. one-way valve body; 74. threaded pipe end; 8. connecting pipe; 81. sealing layer; 9. driving inner layer; 91. extrusion spring; 92. outer tube; 93. connecting end; 94. outer wall one; 95. outer wall two; 96. chamber one; 97. chamber two; 98. extrusion layer; 99. reset spring; 901. force rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-8 The present invention provides a technical solution: an optimized structure for external cooling of a motor, comprising a motor body 1, a base 2 is integrally formed at the lower end of the motor body 1, an output shaft 4 is rotatably arranged in the motor body 1, a rear cover 5 is arranged at the rear side cover of the motor body 1, a plurality of heat dissipation fins 3 are fixed to the outside of the motor body 1, a connecting ring pipe 7 is arranged at the outside of the motor body 1, a rear cover 6 is fixed to the rear end of the rear cover 5, a driving inner layer 9 capable of changing water is fixed inside the rear cover 6, a plurality of connecting pipes 8 are connected between the driving inner layer 9 and the connecting ring pipe 7, and each connecting pipe 8 is respectively located between two different heat dissipation fins 3;

[0037] The driving inner layer 9 has two chambers, and the size of the spaces inside the two chambers changes to drive the water.

[0038] The outer side of the motor body 1 is provided with a concave layer 11 arranged in a circumferential manner, the connecting ring tube 7 is arranged in two halves, and the two halves of the connecting ring tube 7 are butt-jointed and clamped in the concave layer 11, and the upper ends of the two halves of the connecting ring tube 7 are fixed with fixing plates 71, and the fixing plates 71 are fixed to the motor body 1 by bolts. The concave layer 11 is provided to limit the connecting ring tube 7, and the threaded pipe end 74 on the connecting ring tube 7 is made to face between the two heat dissipation fins 3, so as to facilitate limiting the connecting tube 8 between the two heat dissipation fins 3;

[0039] The two halves of the connecting ring tube 7 are both provided with limiting holes 72 for extrusion connection, and a one-way valve body 73 is connected between the two halves of the connecting ring tube 7. The driving water can only move to one side. The two halves of the connecting ring tube 7 are connected through the limiting hole 72, and the one-way valve body 73 is limited.

[0040] A threaded pipe end 74 is fixed to one side of the connecting ring tube 7, and the threaded pipe end 74 is threadedly connected to one end of the connecting pipe 8, and a sealing arrangement is formed between the two. After the connecting ring tube 7 is fixed, the connecting pipe 8 can be connected so that the connecting pipe 8 is located between the two heat dissipating fins 3.

[0041] The connecting pipe 8 is made of metal, and the outer side of the connecting pipe 8 is in contact with the outer side of the motor body 1 to facilitate heat conduction.

[0042] A sealing layer 81 is fixed to the other end of the connecting tube 8, and a connecting end 93 is fixed to one side of the driving inner layer 9. The inner side of the connecting end 93 is arranged in a stepped surface, and the step setting realizes the squeezing of the sealing layer 81, but the inside of the connecting end 93 is still connected with the connecting tube 8. The connecting end 93 and the connecting tube 8 have one end of the sealing layer 81 sleeved, and the sealing layer 81 is squeezed against the inner wall of the connecting end 93, and the two are arranged in a sealed manner. The connection with the connecting tube 8 can be achieved by directly squeezing the driving inner layer 9, which facilitates the cooperation between the two.

[0043] A pressing spring 91 is fixed to the other side of the driving inner layer 9. The pressing spring 91 abuts against the inner wall of the rear end cover 6 and is in a compressed state. Under the action of the pressing spring 91, the driving connecting end 93 is pressed against the sealing layer 81 to achieve matching.

[0044] The outer wall of the circumference of the driving inner layer 9 contacts the inner wall of the rear end cover 6 .

[0045] An annular outer wall 94 is fixed on the inner wall of one side of the driving inner layer 9, and there is a gap between the outer wall 94 and the inner wall of the other side of the driving inner layer 9. The outer wall 94 forms a chamber 96 between the driving inner layer 9 and the outer wall 94, and the interior of the chamber 96 is connected to the connecting end 93;

[0046] The inner driving layer 9 has an outer wall 2 95 formed integrally with the outer wall 1 94 in the longitudinal direction. The outer wall 2 95 divides the inner driving layer 9 into two halves. The spaces on both sides of the outer wall 2 95 are not connected. The space between the outer wall 2 95 and the outer wall 1 94 is the chamber 2 97.

[0047] The chambers 2 97 on both sides are connected to the chambers 1 96 on both sides respectively. An extrusion layer 98 is fitted inside the chamber 2 97. A force-bearing rod 901 is fixed inside the extrusion layer 98. The force-bearing rod 901 extends out of the driving inner layer 9. The force-bearing rod 901 is extruded by the back cover 5. A return spring 99 is fixed outside the extrusion layer 98. The outer side of the return spring 99 is extruded by the driving inner layer 9, and the return spring 99 is in an extruded state.

[0048] Two outer tubes 92 are fixed to the outside of the driving inner layer 9, and the two outer tubes 92 are respectively located on both sides of the outer wall 95. One-way valves are fixed in the two outer tubes 92, and the two one-way valves face the direction of the water flow. The chambers 97 on both sides are respectively connected with the chambers 1 96 on both sides, and the chambers 97 on both sides and the chambers 1 96 on both sides are limited by the outer wall 95 to avoid water contact on both sides. The water on both sides can only contact through the movement of the one-way valve body 73 to achieve one-way movement, and the water is driven to move along the outside of the motor body 1 to dissipate heat.

[0049] The outer side of the squeezing layer 98 is provided with a smooth rubber layer, and the inner wall of the second chamber 97 is provided with a smooth structure. The movement of the squeezing layer 98 is the driving force, which squeezes the movement of the water.

[0050] The output shaft 4 extends out of the rear cover 5, and a rotating piece 41 is provided at the rear end of the output shaft 4. Two symmetrical driving levers 42 are fixed to the outside of the rotating piece 41. The driving levers 42 rotate with the output shaft 4. The driving levers 42 can squeeze the force-bearing rod 901 to realize the reciprocating motion of the force-bearing rod 901. The edges of the driving lever 42 and the force-bearing rod 901 are both arc-shaped, and the arc-shaped surface can avoid getting stuck during the squeezing process.

[0051] During use, when the motor body 1 is working, its output shaft 4 rotates, and at the same time, the two extrusion springs 91 at the rear end of the motor body 1 are placed in the water outside. During the rotation of the output shaft 4, the rotating piece 41 on the rear side is driven to rotate, and the driving lever 42 is driven to rotate, so as to squeeze the force-bearing rod 901. The force-bearing rod 901 is squeezed, and the extrusion layer 98 is squeezed outward, and then reset under the action of the reset spring 99, so that the cavity space outside the extrusion layer 98 is changed. Similarly, since there are one-way valves in the two outer tubes 92 and a one-way valve body 73 between the two sections of the connecting ring tube 7, the outer tube 92 on one side enters water, and the outer tube 92 on the other side discharges water, so that the water is circulated, and the connecting tube 8 is set, which is located between the two heat dissipation fins 3, so that its temperature is relatively low, and heat is absorbed. Even in harsh environments and when the outer side of the motor body 1 is coated, good heat dissipation can be achieved to avoid damage to the inside of the motor body 1 and extend its service life.

[0052] Secondly, the two half connecting ring pipes 7 provided on the outside divide the multiple connecting pipes 8 into left and right sides, and the connecting pipes 8 on both sides are arranged one in and one out, which is convenient for water circulation, increases the contact area between water and the outer side of the motor body 1, and better achieves the heat dissipation effect.

[0053] Under the action of the extrusion spring 91, the sealing layer 81 on the connecting tube 8 is squeezed with the connecting end 93, and the connecting end 93 can be sealed with the connecting tube 8 to limit the connecting tube 8, which makes it convenient for the connecting tube 8 to be connected to the outside of the connecting ring tube 7 through rotation, so that the connecting tube 8 is located between the two heat dissipation fins 3, which is convenient for limiting the position and making the connecting tube 8 easy to cooperate with the motor body 1. Secondly, it is also convenient to replace the damaged connecting tube 8 and facilitate operation.

[0054] The driving inner layer 9 is divided into two parts by the outer wall 95, and chambers 97 are provided on both sides of the driving inner layer 9. The spaces in the chambers 97 on both sides change under the action of the extrusion layers 98 on both sides, and the changes in the chambers 97 on both sides are the same. The space for realizing water circulation changes is relatively increased, and the amount of water circulation is also increased, so that the circulating water maintains a relatively low temperature and can conduct heat.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor external cooling optimization structure, comprising a motor body (1), a base (2) integrally formed at the lower end of the motor body (1), an output shaft (4) rotatably arranged inside the motor body (1), a rear cover (5) arranged on the rear side cover of the motor body (1), and a plurality of heat dissipation fins (3) fixed to the outer side of the motor body (1), characterized in that: The motor body (1) is further provided with a connecting ring tube (7) on the outside, a rear cover (6) is fixed to the rear end of the rear cover (5), a driving inner layer (9) capable of changing water is fixed inside the rear cover (6), a plurality of connecting tubes (8) are connected between the driving inner layer (9) and the connecting ring tube (7), and each of the connecting tubes (8) is located between two different heat dissipation fins (3); The driving inner layer (9) has two chambers, and the size of the spaces inside the two chambers changes to drive the water; A sealing layer (81) is fixed to the other end of the connecting tube (8), a connecting end (93) is fixed to one side of the driving inner layer (9), the inner side of the connecting end (93) is arranged in a stepped surface, the connecting end (93) and the connecting tube (8) are sleeved with one end of the sealing layer (81), and the sealing layer (81) and the inner wall of the connecting end (93) are squeezed, and the two are arranged in a sealed manner; A pressing spring (91) is fixed to the other side of the driving inner layer (9), the pressing spring (91) abuts against the inner wall of the rear end cover (6), and the pressing spring (91) is in a compressed state. Under the action of the pressing spring (91), the driving connecting end (93) and the sealing layer (81) are pressed against each other; The outer wall of the circumference of the driving inner layer (9) contacts the inner wall of the rear end cover (6).

2. The motor external cooling optimization structure according to claim 1 is characterized in that: The motor body (1) is provided with a concave layer (11) arranged in a circumferential manner on the outside, the connecting ring tube (7) is arranged in two halves, and the two halves of the connecting ring tube (7) are butt-jointed and clamped in the concave layer (11), and the upper ends of the two halves of the connecting ring tube (7) are both fixed with fixing plates (71), and the fixing plates (71) are fixed to the motor body (1) by bolts; The two halves of the connecting ring tube (7) are both provided with a limiting hole (72) for extrusion connection, and a one-way valve body (73) is connected between the two halves of the connecting ring tube (7), so that the driving water can only move to one side.

3. The motor external cooling optimization structure according to claim 1 is characterized in that: A threaded pipe end (74) is also fixed to one side of the connecting ring pipe (7), and the threaded pipe end (74) is threadedly connected to one end of the connecting pipe (8), and a sealing arrangement is formed between the two.

4. The motor external cooling optimization structure according to claim 1 is characterized in that: The connecting pipe (8) is made of metal, and the outer side of the connecting pipe (8) is in contact with the outer side of the motor body (1).

5. The motor external cooling optimization structure according to claim 1 is characterized in that: An outer wall (94) arranged in an annular manner is fixed on the inner wall of one side of the driving inner layer (9), and a gap is provided between the outer wall (94) and the inner wall of the other side of the driving inner layer (9), and a chamber (96) is formed between the driving inner layer (9) and the outer wall (94) through the outer wall (94), and the interior of the chamber (96) is communicated with the connecting end (93); The inner driving layer (9) has an outer wall 2 (95) formed integrally with the outer wall 1 (94) in the longitudinal direction, the outer wall 2 (95) divides the inner driving layer (9) into two halves, and the spaces on both sides of the outer wall 2 (95) are not connected, and the space between the outer wall 2 (95) and the outer wall 1 (94) is the second chamber (97); The chambers 2 (97) on both sides are respectively connected to the chambers 1 (96) on both sides; an extrusion layer (98) is provided inside the chamber 2 (97); a force-bearing rod (901) is fixed inside the extrusion layer (98); the force-bearing rod (901) extends out of the driving inner layer (9); the force-bearing rod (901) is extruded by the back cover (5); a return spring (99) is fixed outside the extrusion layer (98); the outer side of the return spring (99) is extruded by the driving inner layer (9), and the return spring (99) is in an extruded state; Two outer tubes (92) are fixed on the outside of the driving inner layer (9), and the two outer tubes (92) are respectively located on both sides of the second outer wall (95). One-way valves are fixed inside the two outer tubes (92), and the two one-way valves face the direction of the water flow.

6. The motor external cooling optimization structure according to claim 5 is characterized in that: The outer side of the extrusion layer (98) is provided as a smooth rubber layer, and the inner wall of the second chamber (97) is provided as a smooth layer.

7. The motor external cooling optimization structure according to claim 5 is characterized in that: The output shaft (4) extends out of the rear cover (5), and a rotating plate (41) is clamped at the rear end of the output shaft (4). Two symmetrical driving levers (42) are fixed to the outside of the rotating plate (41). The driving levers (42) rotate with the output shaft (4). The driving levers (42) can squeeze the force-bearing rod (901) to achieve reciprocating motion of the force-bearing rod (901). The edges of the driving lever (42) and the force-bearing rod (901) are both arranged in an arc shape.

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