Heat-insulation antimagnetic rotary encoder

Abstract

The utility model relates to the technical field of rotary encoders, in particular to a heat-insulation antimagnetic rotary encoder. The heat-insulation antimagnetic rotary encoder comprises an outer shell and a supporting seat installed on the outer shell, and an installation groove is formed in the outer shell; and the mounting seat is fixedly mounted at the front end of the outer shell. An encoder main body assembly is mounted on the encoder body; the protection assembly is installed in the installation groove and comprises a protection shell, the protection shell is inserted in the installation groove and fixedly connected with the outer shell through screws, a solution cavity is formed in the protection shell, a sealing ring used for sealing the solution cavity is installed on the protection shell, and the solution cavity is filled with cooling liquid; a metal woven mesh is embedded in the outer side wall of the protective shell, a metal magnetic shielding sleeve is fixedly installed on the inner side of the protective shell, and the liquid storage tank is installed on the supporting base. The heat-insulation antimagnetic rotary encoder provided by the utility model has the advantages of simple structure, antimagnetic property and heat resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary encoders, in particular to a heat-insulating and anti-magnetic rotary encoder. Background Art

[0002] The rotary encoder is a device used to measure the rotation speed and can achieve fast speed regulation with PWM technology. The photoelectric rotary encoder can convert the mechanical quantities such as angular displacement and angular velocity of the output shaft into corresponding electrical pulses and output them in digital quantities through photoelectric conversion. It is divided into single-channel output and dual-channel output. The technical parameters mainly include the number of pulses per revolution (from dozens to thousands), and the power supply voltage. Single-channel output means that the output of the rotary encoder is a group of pulses, while the dual-channel output rotary encoder outputs two groups of A / B pulses with a phase difference of 90 degrees. These two groups of pulses can not only measure the rotation speed, but also determine the direction of rotation.

[0003] However, when the encoder is in use, due to its own characteristics and the influence of the surrounding environment, it will also generate electromagnetic interference, which will affect its accuracy and stability.

[0004] Therefore, it is necessary to provide a new heat-insulated and anti-magnetic rotary encoder to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a heat-insulated and anti-magnetic rotary encoder with simple structure and anti-magnetic and heat-resistant properties.

[0006] The utility model provides a heat-insulating and anti-magnetic rotary encoder comprising: an outer shell, and a support seat mounted on the outer shell, wherein the outer shell is provided with a mounting groove;

[0007] A mounting seat is fixedly mounted on the front end of the outer shell, and an encoder main body component is mounted on the mounting seat;

[0008] A protection component is installed in the installation groove, the protection component includes a protection shell, the protection shell is inserted in the installation groove and fixedly connected to the outer shell by screws, and a solution cavity is opened in the protection shell, a sealing ring for sealing the solution cavity is installed on the protection shell, and the solution cavity is filled with coolant, a metal braided mesh is embedded in the outer wall of the protection shell, and a metal magnetic shielding sleeve is fixedly installed on the inner side of the protection shell;

[0009] A liquid storage tank is installed on the support seat, and a semiconductor refrigeration plate is embedded on the upper surface of the liquid storage tank. A micro water pump is fixedly installed on one side of the liquid storage tank. The liquid inlet end of the micro water pump is connected to the liquid storage tank through a conduit, and the liquid outlet end of the micro water pump is connected to the solution cavity through a conduit. The solution cavity and the liquid storage tank are connected through a conduit.

[0010] Preferably, the encoder main body assembly includes a transmission rod, which is rotatably mounted on the mounting seat via a bearing, and an encoding disk is fixedly mounted on one end of the transmission rod extending into the outer shell, an LED spotlight is embedded on the end of the mounting seat facing the encoding disk, and a light blocking plate is fixedly mounted on the mounting seat directly in front of the LED spotlight, and a photosensitive element is fixedly mounted in the outer shell directly behind the encoding disk.

[0011] Preferably, the LED spotlight, light barrier and photosensitive element are at the same horizontal height.

[0012] Preferably, the photosensitive element is electrically connected to a conversion connector.

[0013] Preferably, the sealing ring is fixedly mounted on the protective housing by means of a plurality of screws, and sealing rings are embedded on both inner and outer sides of the sealing ring.

[0014] Preferably, a plurality of heat dissipation fins are embedded in the outer side wall of the liquid storage tank, a heat dissipation fan is installed on the support seat, and the wind direction of the heat dissipation fan is toward the plurality of heat dissipation fins.

[0015] Compared with the related art, the heat-insulating and anti-magnetic rotary encoder provided by the utility model has the following beneficial effects:

[0016] 1. The utility model provides a heat-insulating and anti-magnetic rotary encoder. By arranging a protective component on the outer shell, the protective component uses the cooperation of a protective shell, a sealing ring, a metal braided mesh, a metal magnetic shielding sleeve and a solution cavity to achieve heat insulation and anti-magnetic, and reduce external interference to the encoder;

[0017] 2. By setting a liquid storage tank on the support base and using the cooperation of a micro water pump, a semiconductor cooling sheet, a heat dissipation fin and a heat dissipation fan, further heat dissipation is facilitated to avoid encoder detection failure caused by high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a preferred embodiment of a heat-insulated and anti-magnetic rotary encoder provided by the utility model;

[0019] Figure 2 A schematic structural diagram of the heat-insulating and anti-magnetic rotary encoder provided by the utility model from another perspective;

[0020] Figure 3 An internal cross-sectional view of the heat-insulating and anti-magnetic rotary encoder provided by the utility model;

[0021] Figure 4 A schematic diagram of the explosion structure of the protection assembly provided by the utility model;

[0022] Figure 5 for Figure 3 A partial enlarged view of A shown.

[0023] Numbers in the figure: 1. outer shell; 11. support seat; 101. mounting slot; 2. mounting seat; 3. encoder body; 31. transmission rod; 32. encoding disk; 33. LED spotlight; 34. light baffle; 35. photosensitive element; 4. protection component; 41. protection shell; 42. sealing ring; 43. metal braided mesh; 44. metal magnetic shielding sleeve; 401. solution chamber; 5. liquid storage tank; 51. heat dissipation fin; 6. semiconductor refrigeration plate; 7. micro water pump; 8. cooling fan; 9. conversion connector. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0026] See also Figures 1 to 5 The utility model provides a heat-insulating and anti-magnetic rotary encoder, the heat-insulating and anti-magnetic rotary encoder comprising:

[0027] An outer shell 1, and a support base 11 mounted on the outer shell 1, wherein the outer shell 1 is provided with a mounting groove 101;

[0028] The mounting seat 2 is fixedly mounted on the front end of the outer shell 1, and the encoder main body component 3 is mounted on the mounting seat 2;

[0029] A protection component 4 is installed in the installation groove 101. The protection component 4 includes a protection shell 41. The protection shell 41 is inserted into the installation groove 101 and fixedly connected to the outer shell 1 by screws. A solution cavity 401 is opened in the protection shell 41. A sealing ring 42 for sealing the solution cavity 401 is installed on the protection shell 41. The solution cavity 401 is filled with coolant. A metal braided mesh 43 is embedded in the outer wall of the protection shell 41. A metal magnetic shielding sleeve 44 is fixedly installed on the inner side of the protection shell 41.

[0030] The liquid storage tank 5 is installed on the support seat 11, and a semiconductor refrigeration plate 6 is embedded on the upper surface of the liquid storage tank 5. A micro water pump 7 is fixedly installed on one side of the liquid storage tank 5. The liquid inlet end of the micro water pump 7 is connected to the liquid storage tank 5 through a conduit, and the liquid outlet end of the micro water pump 7 is connected to the solution cavity 401 through a conduit. The solution cavity 401 and the liquid storage tank 5 are connected through a conduit.

[0031] It should be noted that: when in use, the support base 11 is installed at the detection position, and then the encoder body 3 is connected to the detection part, the encoder body component 3 is wrapped by the outer shell 1, and the protective shell 41 of the protective component 4 is set in the installation groove 101. The protective shell 41 uses a metal woven mesh 43 and a metal magnetic shielding sleeve 44 to isolate and protect the external magnetic field, and then the protective shell 41 is cooled by the coolant in the solution cavity 401 of the protective shell 41. During cooling, the semiconductor refrigeration plate 6 and the micro water pump 7 are started again to circulate the coolant in the solution cavity 401 in the liquid storage tank 5 continuously, so as to dissipate heat and realize heat insulation of the inside of the outer shell 1.

[0032] In the embodiments of the present invention, please refer to Figure 1 and Figure 4 The encoder main body component 3 includes a transmission rod 31, which is rotatably mounted on the mounting seat 2 through a bearing, and an encoding disk 32 is fixedly mounted on one end of the transmission rod 31 extending into the outer shell 1, an LED spotlight 33 is embedded on the end of the mounting seat 2 facing the encoding disk 32, and a light blocking plate 34 is fixedly mounted on the mounting seat 2 just in front of the LED spotlight 33, and a photosensitive element 35 is fixedly mounted in the outer shell 1 just behind the encoding disk 32;

[0033] The LED spotlight 33 , the light baffle 34 and the photosensitive element 35 are at the same level, and the photosensitive element 35 is electrically connected to a conversion connector 9 .

[0034] It should be noted that: here the encoder body 3 is connected to the detection component through the transmission rod 31, and then when it rotates, it drives the encoding disk 32 to rotate, the LED spotlight 33 shines the light beam from the light blocking plate 34, and then passes through the grating hole opened in the encoding disk 32, and is received by the photosensitive element 35. The received data is transmitted to the upper control unit through the conversion connector 9 to detect the rotation amount. The specific detection control principle is the existing technology and will not be described in detail here.

[0035] In the embodiments of the present invention, please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 The sealing ring 42 is fixedly mounted on the protective housing 41 by a plurality of screws, and sealing rings are embedded on both the inner and outer sides of the sealing ring 42;

[0036] It should be noted that when the sealing ring 42 is installed on the protective shell 41, a number of screws are used to pass through the solution cavity 401, so that the sealing ring 42 is fastened to the open end of the solution cavity 401 by using internal and external sealing rings, and the solution cavity 401 is sealed to achieve cooling circulation.

[0037] In the embodiments of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The outer wall of the liquid storage tank 5 is embedded with a plurality of heat dissipation fins 51, and a heat dissipation fan 8 is installed on the support seat 11, and the wind direction of the heat dissipation fan 8 is toward the plurality of heat dissipation fins 51;

[0038] It should be noted that when the liquid storage tank 5 is circulating and cooling, the heat dissipation fins 51 are used to further conduct heat to the liquid storage tank 5, and then the heat dissipation fan 8 is used to dissipate heat from the heat dissipation fins 51, thereby further cooling and lowering the temperature, which is conducive to better heat insulation.

[0039] The working principle of the heat-insulating and anti-magnetic rotary encoder provided by the utility model is as follows:

[0040] When in use, the support base 11 is installed at the detection position, and then the encoder body 3 is connected to the detection part. The encoder body component 3 is wrapped by the outer shell 1, and the protective shell 41 of the protective component 4 is set in the installation groove 101. The protective shell 41 uses a metal woven mesh 43 and a metal magnetic shielding sleeve 44 to isolate and protect the external magnetic field, and then the protective shell 41 is cooled by the coolant in the solution cavity 401 of the protective shell 41. During cooling, the semiconductor refrigeration plate 6 and the micro water pump 7 are started again to circulate the coolant in the solution cavity 401 in the liquid storage tank 5 continuously, so as to dissipate heat and realize heat insulation of the interior of the outer shell 1.

[0041] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heat-insulated and anti-magnetic rotary encoder, comprising: An outer shell (1), and a support seat (11) mounted on the outer shell (1), wherein the outer shell (1) is provided with a mounting groove (101); It is characterized by further comprising: A mounting seat (2) is fixedly mounted on the front end of the outer shell (1), and an encoder main body component (3) is mounted on the mounting seat (2); A protection component (4) is installed in the installation groove (101), the protection component (4) comprises a protection shell (41), the protection shell (41) is inserted in the installation groove (101) and fixedly connected to the outer shell (1) by screws, and a solution cavity (401) is opened in the protection shell (41), a sealing ring (42) for sealing the solution cavity (401) is installed on the protection shell (41), and the solution cavity (401) is filled with cooling liquid, the outer wall of the protection shell (41) is embedded with a metal braided mesh (43), and the inner side of the protection shell (41) is fixedly installed with a metal magnetic shielding sleeve (44); A liquid storage tank (5) is mounted on the support seat (11), and a semiconductor cooling plate (6) is embedded on the upper surface of the liquid storage tank (5). A micro water pump (7) is fixedly mounted on one side of the liquid storage tank (5). The liquid inlet end of the micro water pump (7) is connected to the liquid storage tank (5) through a conduit, and the liquid outlet end of the micro water pump (7) is connected to the solution cavity (401) through a conduit. The solution cavity (401) and the liquid storage tank (5) are connected through a conduit.

2. The heat-insulated and magnetic-proof rotary encoder according to claim 1, characterized in that: The encoder main body component (3) comprises a transmission rod (31), the transmission rod (31) is rotatably mounted on the mounting seat (2) via a bearing, and an encoding disk (32) is fixedly mounted on one end of the transmission rod (31) extending into the outer shell (1), an LED spotlight (33) is embedded on one end of the mounting seat (2) facing the encoding disk (32), and a light blocking plate (34) is fixedly mounted on the mounting seat (2) directly in front of the LED spotlight (33), and a photosensitive element (35) is fixedly mounted in the outer shell (1) directly behind the encoding disk (32).

3. The heat-insulated and magnetic-proof rotary encoder according to claim 2, characterized in that: The LED spotlight (33), the light blocking plate (34) and the photosensitive element (35) are at the same level.

4. The heat-insulated and anti-magnetic rotary encoder according to claim 2, characterized in that: The photosensitive element (35) is electrically connected to a conversion connector (9).

5. The heat-insulated and magnetic-proof rotary encoder according to claim 1, characterized in that: The sealing ring (42) is fixedly mounted on the protective housing (41) via a plurality of screws, and the sealing ring (42) Sealing rings are embedded on both the inner and outer sides.

6. The heat-insulated and magnetic-proof rotary encoder according to claim 1, characterized in that: A plurality of heat dissipation fins (51) are embedded in the outer wall of the liquid storage box (5), a heat dissipation fan (8) is installed on the support seat (11), and the wind direction of the heat dissipation fan (8) is toward the plurality of heat dissipation fins (51).

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