Split type encoder

Abstract

The invention provides a split-type encoder, and the encoder comprises a main body which is provided with a through hole and a groove, and the through hole and the groove are communicated with each other. The circuit board is arranged at the notch of the groove, and an installation cavity is defined by the circuit board and the groove wall of the groove; the code disc assembly comprises a code disc and a code disc shaft which are connected, the first end of the code disc shaft is arranged in the through hole, the second end of the code disc shaft is located in the mounting cavity, and the code disc is arranged at the second end of the code disc shaft; the photocell is arranged on the side, facing the coded disc assembly, of the circuit board, and a gap is formed between the photocell and the coded disc; the mounting hole is formed in the main body and is communicated with the mounting cavity; at least one part of the light source assembly is arranged in the mounting hole and is opposite to the photocell along the axial direction of the coded disc shaft, so that the light source assembly is mounted on the main body, namely, a lamp bracket structure in the related technology is canceled, and the space occupied by mounting the light source assembly on the main body is obviously reduced; and moreover, the processing amount of the split type encoder is greatly reduced, and the practical benefits of high efficiency and cost reduction are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of encoders, and in particular to a split encoder. Background Art

[0002] At present, during the production or factory assembly process of the split encoder, the pre-installed parts are generally used to pre-position the code disc shaft to ensure accurate positioning of the code disc, and then the screws are used to cooperate with the threaded holes on the code disc shaft to realize the assembly between the code disc shaft and the motor shaft. After the assembly is completed, the pre-installed parts are removed. In addition, in order to ensure effective pre-positioning of the code disc shaft and reliable connection between the code disc shaft and the motor shaft, multiple pre-installed parts and multiple screws are generally provided. Therefore, multiple channels for accommodating pre-installed parts and channels for tightening screws are opened on the main body.

[0003] like Figure 1 and Figure 2 As shown, in the related art, the light source 20' of the encoder 10' is installed in the groove of the main body 50' through the lamp holder 30'. Since there are many channels on the main body 50', the space reserved for installing the lamp holder 30' is limited, and an avoidance structure 40' needs to be provided on the lamp holder 30', resulting in a complex structure of the lamp holder 30' and a large amount of processing. Moreover, the groove on the main body 50' needs to be similar in shape to the lamp holder 30' to minimize the space occupied by installing the lamp holder 30', increase the difficulty of processing the groove, and increase the production cost of the encoder 10'. Summary of the invention

[0004] The embodiments of the present invention are intended to solve at least one of the technical problems existing in the prior art.

[0005] To this end, an embodiment of the present invention provides a split encoder.

[0006] In view of this, according to an embodiment of the present invention, a split encoder is provided, the split encoder comprising: a main body, the main body is provided with a connected through hole and a groove; a circuit board, arranged at the notch of the groove, and enclosed with the groove wall of the groove to form an installation cavity; a code disc assembly, the code disc assembly comprises a connected code disc and a code disc shaft, the first end of the code disc shaft is arranged in the through hole, the second end of the code disc shaft is located in the installation cavity, and the code disc is arranged at the second end of the code disc shaft; a photocell, arranged on the side of the circuit board facing the code disc assembly, and having a gap between the code disc and the photocell; a mounting hole, arranged in the main body, and connected to the mounting cavity; a light source assembly, at least a portion of the light source assembly is arranged in the mounting hole, and opposite to the photocell along the axial direction of the code disc shaft.

[0007] The split encoder provided in an embodiment of the present invention includes a main body, a circuit board, a code disc assembly, a photocell, a mounting hole and a light source assembly. Specifically, a through hole and a groove are arranged on the main body, and the through hole is connected to the groove, and the circuit board is arranged at the notch of the groove, so that the circuit board and the groove wall of the groove are enclosed to form a closed cavity.

[0008] Since the second end of the code disc shaft is located in the mounting cavity, and the code disc is arranged on the second end of the code disc shaft, that is, the code disc is located in the mounting cavity, compared with the semi-open cavity structure formed by the main body and the PCBA (circuit board) in the related technology, the sealing of the mounting cavity can be improved, and dust and the like can be effectively prevented from entering the mounting cavity to contaminate the code disc, thereby ensuring the performance of the split encoder and extending the service life of the split encoder.

[0009] The code disc shaft can rotate in the through hole. Optionally, the split encoder is mounted on a motor, and the motor shaft of the motor is connected to the code disc shaft, so that the motor shaft can drive the code disc to rotate in the mounting cavity through the code disc shaft.

[0010] It is understandable that, since the encoder defined in this application is a split encoder, compared with the integral encoder in the related art, the bearing between the main body and the code disc shaft is eliminated, the thickness of the two bearings and the fixed structure size are reduced, the requirements of reducing the volume and miniaturization are met, and the cost is reduced. At the same time, since there is no bearing, the service life of the split encoder can also be extended.

[0011] The mounting hole is arranged on the main body, and the mounting hole is connected with the mounting cavity. At least part of the light source assembly is arranged in the mounting hole. Along the axial direction of the code disk axis, the light source assembly is opposite to the photocell. That is to say, the light source assembly is directly fixed at the mounting hole, thereby realizing the installation of the light source assembly on the main body, that is, the lamp holder structure in the related technology is cancelled, which significantly reduces the space occupied by installing the light source assembly on the main body and greatly reduces the processing amount of the split encoder, which has the actual benefit of efficient cost reduction.

[0012] In addition, the split encoder provided according to the above technical solution of the present invention also has the following additional technical features: In some technical solutions, optionally, the split encoder also includes an insulating structure, and the insulating structure is arranged between the hole wall of the mounting hole and the light source assembly.

[0013] In this technical solution, it is defined that the split encoder also includes an insulating structure. Specifically, the insulating structure is arranged between the hole wall of the mounting hole and the light source assembly, that is, insulation treatment is performed between the main body and the light source assembly.

[0014] It can be understood that the main body is generally made of metal, and the outer shell of the light source assembly is generally a metal structure. By setting an insulating structure between the hole wall of the mounting hole and the light source assembly, the metal part of the light source assembly can be effectively prevented from being short-circuited due to conduction, thereby improving the reliability of the split encoder and ensuring the detection accuracy of the split encoder.

[0015] In some technical solutions, optionally, the insulating structure includes a first insulating layer, and the first insulating layer is disposed on at least one of a hole wall of the mounting hole and the light source assembly.

[0016] In this technical solution, it is defined that the insulating structure includes a first insulating layer. Specifically, the first insulating layer is arranged on the hole wall of the mounting hole, or the first insulating layer is arranged on the light source assembly, or the first insulating layer is arranged on the hole wall of the mounting hole and the light source assembly respectively, so as to perform insulation treatment between the main body and the light source assembly.

[0017] Optionally, the first insulating layer may be formed on at least one of the hole wall of the mounting hole and the light source assembly by means of gluing or spraying paint.

[0018] In some technical solutions, optionally, the main body is a plastic part.

[0019] In this technical solution, the main body is defined as a plastic part. Optionally, the plastic part is a high-strength plastic. By setting the main body as a plastic part, it is possible to effectively avoid the metal part of the light source assembly being turned on and short-circuited, thereby improving the reliability of the split encoder and ensuring the detection accuracy of the split encoder.

[0020] In some technical solutions, optionally, the main body is also provided with a via hole, one end of the via hole is connected to the mounting hole, and the other end of the via hole is connected to the groove; the light source assembly includes a light source and a pin, wherein one end of the pin is connected to the light source, and the other end of the pin passes through the via hole and is connected to the circuit board.

[0021] In this technical solution, it is defined that the light source assembly includes a light source and a pin. Specifically, the main body is further provided with a via, one end of the via is connected to the mounting hole, and the other end of the via is connected to the groove.

[0022] Specifically, one end of the pin is connected to the light source, and the other end of the pin passes through a via hole and is soldered on the circuit board.

[0023] Optionally, when installing the light source assembly, the light source is first fixed in the mounting hole, and then the pins are soldered on the circuit board to ensure position accuracy.

[0024] In some technical solutions, optionally, the split encoder further includes a second insulating layer, and the second insulating layer is disposed on the outer side of the pin and / or on the hole wall of the via hole.

[0025] In this technical solution, it is defined that the split encoder also includes a second insulating layer. It can be understood that the pin is a metal pin. Specifically, the second insulating layer is arranged on the hole wall of the via hole. Alternatively, the outer side of the pin is wrapped with the second insulating layer. Alternatively, the second insulating layer is arranged on the outer side of the pin and the hole wall of the via hole.

[0026] In other words, insulation treatment between the main body and the pins can effectively prevent the metal part of the light source component from being turned on and short-circuited, thereby improving the reliability of the split encoder and ensuring the detection accuracy of the split encoder.

[0027] In some technical schemes, optionally, the main body is also provided with a limiting channel and an installation channel, the limiting channel is connected with the through hole and extends at least partially along the radial direction of the code disk axis, the code disk axis is provided with a limiting portion and a matching hole, the matching hole is connected with the through hole, one end of the installation channel is connected with the matching hole, and the other end of the installation channel is connected to the outside; the split encoder also includes a limiting member and a fastener, wherein the limiting member can be inserted into or removed from the limiting channel, and when the limiting member is inserted into the limiting channel, the limiting member is detachably connected to the limiting portion, and the fastener is arranged in the matching hole; when the number of at least one of the limiting channel and the installation channel is multiple, the light source assembly is located between any two adjacent limiting channels, or the light source assembly is located between any two adjacent installation channels, or the light source assembly is located between any adjacent installation channel and the limiting channel.

[0028] In this technical solution, it is defined that the split encoder also includes a limit member and a fastener. Specifically, since at least a portion of the limit channel extends radially along the main body, during the production or factory assembly of the split encoder, the code disc assembly is first placed in the groove using auxiliary tooling to pre-position the code disc assembly, and then the limit member is inserted into the limit channel and connected to the limit portion to position the code disc shaft in the axial direction, thereby achieving precise positioning of the code disc in the groove. When the photocell and the code disc are aligned, the circuit board is installed. Due to the precise positioning of the code disc, the problem of damage to the code disc due to interference between the code disc and the photocell, or between the code disc and the circuit board, can be effectively avoided, thereby ensuring the performance of the split encoder.

[0029] Moreover, since the limiter can be provided to position the code disc assembly, the processing accuracy requirements of each component can be reduced, which is beneficial to reducing the production cost of the split encoder.

[0030] It can be understood that when the split encoder is installed on the motor waiting to be installed, the limit piece is disconnected from the limit part and moved out of the limit channel. In other words, the limit piece is a pre-installed part. While ensuring the pre-installation accuracy of the split encoder, it has a simple structure and is quick and effective to install, thereby achieving a good assembly effect between the split encoder and the motor waiting to be installed.

[0031] The fastener is set in the matching hole. When the split encoder and the motor waiting for installation equipment are assembled, the motor shaft is inserted into the shaft hole of the code disc shaft, and the fastener is operated to make the fastener and the motor shaft abut against each other, thereby realizing the assembly between the code disc shaft and the motor shaft. It can be understood that when the code disc shaft and the motor shaft are assembled, there is no relative movement between the code disc shaft and the motor shaft, that is, the same speed, the same angle or the same position.

[0032] The main body is also provided with an installation channel, which is connected to the matching hole and the outside. Tools can be used to perform locking operations on fasteners through the installation channel to achieve rapid assembly between the code disk shaft and the motor shaft, thereby improving assembly efficiency.

[0033] When there are multiple limiting channels and / or mounting channels, the light source assembly may be located between two adjacent limiting channels, or between two adjacent mounting channels, or between the limiting channel and the mounting channel.

[0034] Since the lamp holder structure used to install the light source assembly in the related art is eliminated, the light source assembly is directly installed at the mounting hole. Therefore, the light source assembly does not need to cross the limiting channel and / or the mounting channel, which significantly reduces the space occupied by the light source assembly on the main body, thereby increasing more setting space for the limiting channel and the mounting channel, which is beneficial to improving the detection accuracy of the split encoder.

[0035] In some technical solutions, optionally, the split encoder further includes a fixing member, and the light source assembly is fixed in the mounting hole through the fixing member.

[0036] In this technical solution, it is defined that the split encoder also includes a fixing member. Specifically, the light source assembly is fixed in the mounting hole by the fixing member, thereby achieving reliable fixation of the light source assembly in the mounting hole, which is beneficial to improving the reliability of the split encoder.

[0037] In some technical solutions, optionally, the fixing member includes an adhesive member, which is disposed in the mounting hole and connected to the light source assembly.

[0038] In this technical solution, it is defined that the fixing part includes an adhesive part, that is, the light source assembly is fixed in the mounting hole by the adhesive part. On the one hand, it can realize the reliable fixing of the light source assembly, ensure the good relative position between the light source assembly and the main body, and further reduce the space occupied by the light source assembly on the main body. On the other hand, the adhesive part can also seal the gap between the hole wall of the mounting hole and the light source assembly, improve the protection level of the light source assembly, prevent dust from entering the mounting cavity from the light source assembly, and ensure the cleanliness of the split encoder.

[0039] Optionally, the adhesive comprises UV (ultraviolet) glue.

[0040] In some technical solutions, optionally, the fixing member includes an elastic member, the elastic member is sleeved on the outside of the light source assembly and located in the mounting hole, and the elastic member is deformable.

[0041] In this technical solution, it is defined that the fixing part includes an elastic part. Specifically, the elastic part is sleeved on the outside of the light source assembly. When the light source assembly is set in the mounting hole, the elastic part is deformed, so that the light source assembly can be firmly fixed in the mounting hole. The structure is simple, the processing accuracy requirement is low, and the installation is quick and effective.

[0042] In some technical solutions, optionally, the fixing member includes a buckle, which is provided on the main body and is cooperatively connected with the light source assembly.

[0043] In this technical solution, it is defined that the fixing member includes a buckle. Specifically, the buckle is arranged on the main body, and the buckle is matched and connected with the light source assembly, so as to achieve reliable fixation of the light source assembly.

[0044] In some technical solutions, optionally, the main body is also provided with an opening, which is located on the side of the mounting hole away from the circuit board and is connected to the mounting hole, and at least part of the light source assembly is arranged in the mounting hole through the opening; the split encoder also includes an insulating part, which is arranged at the opening.

[0045] In this technical solution, it is defined that the main body is further provided with an opening, specifically, the opening is located on the side of the mounting hole away from the circuit board, that is, the opening is located at the bottom of the main body. The opening is connected to the mounting hole, and at least a part of the light source assembly is inserted into the mounting hole through the opening to achieve rapid installation of the light source assembly.

[0046] The insulating part is arranged at the opening. When the split encoder is installed on the motor, the risk of potential short circuit caused by the light source component being too close to the metal surface corresponding to the motor can be avoided, thereby improving the reliability of the split encoder.

[0047] Additional aspects and advantages according to the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 A schematic diagram of the structure of an encoder in the related art is shown; Figure 2 A schematic diagram of the structure of a lamp stand in the related art is shown; Figure 3 One of the structural schematic diagrams of a split encoder according to an embodiment of the present invention is shown; Figure 4A second structural schematic diagram of a split encoder according to an embodiment of the present invention is shown; Figure 5 A third structural schematic diagram of a split encoder according to an embodiment of the present invention is shown; Figure 6 A fourth structural schematic diagram of a split encoder according to an embodiment of the present invention is shown; Figure 7 A fifth structural schematic diagram of a split encoder according to an embodiment of the present invention is shown; Figure 8 A sixth structural schematic diagram of a split-type encoder according to an embodiment of the present invention is shown.

[0049] in, Figures 1 to 8 The corresponding relationship between the reference numerals and the component names is as follows: 10' encoder, 20' light source, 30' light stand, 40' avoidance structure, 50' main body; 100 split encoder, 110 main body, 111 through hole, 112 groove, 113 through hole, 114 limiting channel, 115 installation channel, 116 opening, 120 circuit board, 130 installation cavity, 140 code disk assembly, 141 code disk, 142 code disk shaft, 143 limiting part, 144 matching hole, 150 photocell, 160 installation hole, 170 light source assembly, 171 light source, 172 pin, 180 insulation structure, 181 first insulation layer, 190 second insulation layer, 210 limiting piece, 220 fastener, 230 fixing piece, 231 adhesive piece, 240 insulation part. DETAILED DESCRIPTION

[0050] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0051] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0052] Refer to the following Figures 3 to 8 The split encoder 100 provided according to some embodiments of the present invention is described.

[0053] In one embodiment according to the present application, Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a split encoder 100 is proposed, and the split encoder 100 includes: a main body 110, the main body 110 is provided with a through hole 111 and a groove 112 connected to each other; a circuit board 120, which is arranged at the notch of the groove 112 and is surrounded by the groove wall of the groove 112 to form an installation cavity 130; a code disc assembly 140, the code disc assembly 140 includes a connected code disc 141 and a code disc shaft 142, the first end of the code disc shaft 142 is arranged in the through hole 111, and the code disc shaft 1 The second end of the assembly 42 is located in the mounting cavity 130, and the code disc 141 is arranged at the second end of the code disc axis 142; the photocell 150 is arranged on the side of the circuit board 120 facing the code disc assembly 140, and has a gap with the code disc 141; the mounting hole 160 is arranged in the main body 110 and communicated with the mounting cavity 130; the light source assembly 170, at least a part of the light source assembly 170 is arranged in the mounting hole 160, and is opposite to the photocell 150 along the axial direction of the code disc axis 142.

[0054] The split encoder 100 provided in an embodiment of the present invention includes a main body 110, a circuit board 120, a code disc assembly 140, a photocell 150, a mounting hole 160 and a light source assembly 170. Specifically, a through hole 111 and a groove 112 are arranged on the main body 110, and the through hole 111 is connected to the groove 112, and the circuit board 120 is arranged at the notch of the groove 112, so that the circuit board 120 and the groove wall of the groove 112 are enclosed to form a closed cavity.

[0055] Since the second end of the code disc shaft 142 is located in the installation cavity 130, and the code disc 141 is arranged on the second end of the code disc shaft 142, that is, the code disc 141 is located in the installation cavity 130, compared with the semi-open cavity structure formed by the main body and the PCBA (circuit board) in the related technology, it can improve the sealing of the installation cavity 130, effectively prevent dust and the like from entering the installation cavity 130 to contaminate the code disc 141, ensure the performance of the split encoder 100, and extend the service life of the split encoder 100.

[0056] The code disc shaft 142 can rotate in the through hole 111. Optionally, the split encoder 100 is mounted on a motor, and the motor shaft of the motor is connected to the code disc shaft 142, so that the motor shaft can drive the code disc 141 to rotate in the installation cavity 130 through the code disc shaft 142.

[0057] It is understandable that, since the encoder defined in the present application is a split encoder 100, compared with the integral encoder in the related art, the bearing between the main body 110 and the code disc shaft 142 is eliminated, the thickness of the two bearings and the fixed structure size are reduced, the requirements of reducing the volume and achieving miniaturization are met, and the cost is reduced. At the same time, since there is no bearing, the service life of the split encoder 100 can also be extended.

[0058] The mounting hole 160 is arranged on the main body 110, and the mounting hole 160 is connected to the mounting cavity 130. At least a part of the light source assembly 170 is arranged in the mounting hole 160. Along the axial direction of the code disk axis 142, the light source assembly 170 is opposite to the photocell 150. That is to say, the light source assembly 170 is directly fixed at the mounting hole 160, so as to realize the installation of the light source assembly 170 on the main body 110, that is, the lamp holder structure in the related technology is cancelled, which significantly reduces the space occupied by installing the light source assembly 170 on the main body 110, and greatly reduces the processing amount of the split encoder 100, which has the actual benefit of efficient cost reduction.

[0059] like Figure 4 and Figure 6 As shown, in some embodiments, optionally, the split encoder 100 further includes an insulating structure 180 , and the insulating structure 180 is disposed between the hole wall of the mounting hole 160 and the light source assembly 170 .

[0060] In this embodiment, the split encoder 100 is defined to further include an insulating structure 180 . Specifically, the insulating structure 180 is disposed between the hole wall of the mounting hole 160 and the light source assembly 170 , that is, insulation is performed between the main body 110 and the light source assembly 170 .

[0061] It can be understood that the main body 110 is generally made of metal, and the outer shell of the light source assembly 170 is generally a metal structure. By providing an insulating structure 180 between the hole wall of the mounting hole 160 and the light source assembly 170, it is possible to effectively prevent the metal part of the light source assembly 170 from being turned on and short-circuited, thereby improving the reliability of the split encoder 100 and ensuring the detection accuracy of the split encoder 100.

[0062] like Figure 4 and Figure 6 As shown, in some embodiments, optionally, the insulation structure 180 includes a first insulation layer 181 , and the first insulation layer 181 is disposed on at least one of the hole wall of the mounting hole 160 and the light source assembly 170 .

[0063] In this embodiment, it is defined that the insulating structure 180 includes a first insulating layer 181. Specifically, the first insulating layer 181 is set on the hole wall of the mounting hole 160, or the first insulating layer 181 is set on the light source assembly 170, or the first insulating layer 181 is respectively set on the hole wall of the mounting hole 160 and the light source assembly 170, so as to perform insulation treatment between the main body 110 and the light source assembly 170.

[0064] Optionally, the first insulating layer 181 may be formed on at least one of the hole wall of the mounting hole 160 and the light source assembly 170 by means of gluing or spraying paint.

[0065] In some embodiments, the main body 110 is optionally a plastic part.

[0066] In this embodiment, the main body 110 is defined as a plastic part. Optionally, the plastic part is a high-strength plastic. By setting the main body 110 as a plastic part, it is possible to effectively avoid the metal part of the light source assembly 170 being turned on and short-circuited, thereby improving the reliability of the split encoder 100 and ensuring the detection accuracy of the split encoder 100.

[0067] like Figure 3 and Figure 5 As shown, in some embodiments, optionally, the main body 110 is also provided with a through hole 113, one end of the through hole 113 is connected to the mounting hole 160, and the other end of the through hole 113 is connected to the groove 112; the light source assembly 170 includes a light source 171 and a pin 172, wherein one end of the pin 172 is connected to the light source 171, and the other end of the pin 172 passes through the through hole 113 and is connected to the circuit board 120.

[0068] In this embodiment, it is defined that the light source assembly 170 includes a light source 171 and a pin 172. Specifically, the main body 110 is further provided with a via 113, one end of the via 113 is connected to the mounting hole 160, and the other end of the via 113 is connected to the groove 112. Specifically, one end of the pin 172 is connected to the light source 171, and the other end of the pin 172 passes through the via 113 and is soldered on the circuit board 120.

[0069] Optionally, when installing the light source assembly 170 , the light source 171 is first fixed in the mounting hole 160 , and then the pins 172 are soldered to the circuit board 120 to ensure position accuracy.

[0070] like Figure 5 As shown, in some embodiments, optionally, the split encoder 100 further includes a second insulating layer 190 , and the second insulating layer 190 is disposed on the outer side of the pin 172 and / or on the hole wall of the via hole 113 .

[0071] In this embodiment, it is defined that the split encoder 100 further includes a second insulating layer 190. It can be understood that the pin 172 is a metal pin. Specifically, the second insulating layer 190 is disposed on the hole wall of the via hole 113. Alternatively, the outer side of the pin 172 is wrapped with the second insulating layer 190. Alternatively, the second insulating layer 190 is disposed on both the outer side of the pin 172 and the hole wall of the via hole 113.

[0072] In other words, insulation treatment is performed between the main body 110 and the pin 172 , which can effectively prevent the metal part of the light source assembly 170 from being turned on and short-circuited, thereby improving the reliability of the split encoder 100 and ensuring the detection accuracy of the split encoder 100 .

[0073] like Figure 5and Figure 8 As shown, in some embodiments, optionally, the main body 110 is further provided with a limiting channel 114 and a mounting channel 115, the limiting channel 114 is communicated with the through hole 111, and at least partially extends along the radial direction of the code disk shaft 142, the code disk shaft 142 is provided with a limiting portion 143 and a matching hole 144, the matching hole 144 is communicated with the through hole 111, one end of the mounting channel 115 is communicated with the matching hole 144, and the other end of the mounting channel 115 is connected to the outside; the split encoder 100 also includes a limiting member 210 and a fastener 220, wherein the limiting member 210 can be inserted or Move out the limiting channel 114, and when the limiting member 210 is inserted into the limiting channel 114, the limiting member 210 is detachably connected to the limiting portion 143, and the fastener 220 is arranged in the matching hole 144; when the number of at least one of the limiting channels 114 and the mounting channels 115 is plural, the light source assembly 170 is located between any two adjacent limiting channels 114, or the light source assembly 170 is located between any two adjacent mounting channels 115, or the light source assembly 170 is located between any two adjacent mounting channels 115 and the limiting channel 114.

[0074] In this embodiment, the split encoder 100 is defined to also include a limit member 210 and a fastener 220. Specifically, since at least a portion of the limit channel 114 extends radially along the main body 110, during the production or factory assembly of the split encoder 100, the code disc assembly 140 is first placed in the groove 112 using auxiliary tooling to pre-position the code disc assembly 140, and then the limit member 210 is inserted into the limit channel 114 and connected to the limit portion 143 to position the code disc shaft 142 in the axial direction, thereby achieving precise positioning of the code disc 141 in the groove 112. When the photovoltaic cell 150 and the code disc 141 are aligned, the circuit board 120 is installed. Since the code disc 141 is precisely positioned, the problem of damage to the code disc 141 caused by interference between the code disc 141 and the photovoltaic cell 150, or between the code disc 141 and the circuit board 120, can be effectively avoided, thereby ensuring the performance of the split encoder 100.

[0075] Furthermore, since the positioning member 210 can be provided to position the code disc assembly 140 , the processing accuracy requirements of each component can be reduced, which is beneficial to reducing the production cost of the split encoder 100 .

[0076] It can be understood that when the split encoder 100 is installed on the motor waiting to be installed equipment, the limit member 210 is disconnected from the limit portion 143 and moved out of the limit channel 114. That is to say, the limit member 210 is a pre-installed part. While ensuring the pre-installation accuracy of the split encoder 100, it has a simple structure and is quick and effective to install, so as to achieve a good assembly effect between the split encoder 100 and the motor waiting to be installed equipment.

[0077] The fastener 220 is disposed in the matching hole 144. When the split encoder 100 and the motor waiting to be installed are assembled, the motor shaft is inserted into the shaft hole of the code disc shaft 142, and the fastener 220 is operated to make the fastener 220 and the motor shaft abut against each other, thereby realizing the assembly between the code disc shaft 142 and the motor shaft. It is understandable that when the code disc shaft 142 and the motor shaft are assembled, there is no relative movement between the code disc shaft 142 and the motor shaft, that is, the same speed, the same angle or the same position.

[0078] The main body 110 is also provided with an installation channel 115, which is connected to the matching hole 144 and the outside. The fastener 220 can be locked through the installation channel 115 by using a tool to achieve rapid assembly between the code wheel shaft 142 and the motor shaft, thereby improving assembly efficiency.

[0079] When there are multiple limiting channels 114 and / or installation channels 115, optionally, the number of limiting channels 114 is 2 or 3, and correspondingly, the number of limiting portions 143 is 2 or 3, the number of installation channels 115 is 2 or 3, and correspondingly, the number of matching holes 144 is 2 or 3.

[0080] When the number of the limiting channels 114 and the installation channels 115 are both 3, these limiting channels 114 and the installation channels 115 are reasonably arranged on the main body 110. If the light source is still installed on the main body with a lamp holder, the lamp holder solution needs to be adjusted to match the above layout. After adjusting the lamp holder solution, the lamp holder is too large and has a complex shape. Correspondingly, the main body is required to match the installation groove of the lamp holder, which will increase the processing volume of both and increase the cost.

[0081] Since the lamp holder structure for installing the light source assembly in the related art is eliminated, the light source assembly 170 is directly installed at the mounting hole 160. Therefore, the light source assembly 170 does not need to cross the limiting channel 114 and / or the mounting channel 115, which significantly reduces the space occupied by the light source assembly 170 on the main body 110, thereby increasing more setting space for the limiting channel 114 and the mounting channel 115, which is beneficial to improving the detection accuracy of the split encoder 100.

[0082] The light source assembly 170 may be located between two adjacent limiting channels 114 . Alternatively, the light source assembly 170 may be located between two adjacent mounting channels 115 . Alternatively, the light source assembly 170 may be located between the limiting channel 114 and the mounting channel 115 .

[0083] Optionally, the split encoder 100 further includes a fixing portion, and when the limiting member 210 is inserted into the limiting channel 114 and connected to the limiting member 143, the limiting member 210 is connected to the main body 110 through the fixing portion to improve the limiting effect of the limiting member 210 on the code disc assembly 140. It is understandable that the fixing portion is detachable.

[0084] like Figure 3 As shown, in some embodiments, optionally, the split encoder 100 further includes a fixing member 230 , and the light source assembly 170 is fixed in the mounting hole 160 via the fixing member 230 .

[0085] In this embodiment, it is defined that the split encoder 100 also includes a fixing member 230. Specifically, the light source assembly 170 is fixed in the mounting hole 160 by the fixing member 230, thereby achieving reliable fixation of the light source assembly 170 in the mounting hole 160, which is beneficial to improving the reliability of the split encoder 100.

[0086] like Figure 3 As shown, in some embodiments, optionally, the fixing member 230 includes an adhesive member 231 , and the adhesive member 231 is disposed in the mounting hole 160 and connected to the light source assembly 170 .

[0087] In this embodiment, the fixing member 230 is defined to include an adhesive member 231, that is, the light source assembly 170 is fixed in the mounting hole 160 by the adhesive member 231. On the one hand, the light source assembly 170 can be reliably fixed, and a good relative position between the light source assembly 170 and the main body 110 can be ensured, while further reducing the space occupied by the light source assembly 170 on the main body 110. On the other hand, the adhesive member 231 can also seal the gap between the hole wall of the mounting hole 160 and the light source assembly 170, thereby improving the protection level of the light source assembly 170, preventing dust from entering the mounting cavity 130 from the light source assembly 170, and ensuring the cleanliness of the split encoder 100.

[0088] Optionally, the adhesive 231 includes UV (ultraviolet) glue. Specifically, after the glue is dispensed, the lamp is irradiated with a UV lamp to quickly and accurately position and reliably install the lamp on the main body 110.

[0089] In some embodiments, optionally, the fixing member 230 includes an elastic member, which is sleeved on the outside of the light source assembly 170 and located in the mounting hole 160 , and the elastic member is deformable.

[0090] In this embodiment, it is defined that the fixing member 230 includes an elastic member. Specifically, the elastic member is sleeved on the outside of the light source assembly 170. When the light source assembly 170 is set in the mounting hole 160, the elastic member is deformed, so that the light source assembly 170 can be firmly fixed in the mounting hole 160. The structure is simple, the processing accuracy requirement is low, and the installation is quick and effective.

[0091] In some embodiments, optionally, the fixing member 230 includes a buckle, which is disposed on the main body 110 and is cooperatively connected with the light source assembly 170 .

[0092] In this embodiment, it is defined that the fixing member 230 includes a buckle. Specifically, the buckle is disposed on the main body 110 , and the buckle is matched and connected with the light source assembly 170 , so as to achieve reliable fixation of the light source assembly 170 .

[0093] like Figure 3 and Figure 4 As shown, in some embodiments, optionally, the main body 110 is further provided with an opening 116, which is located on the side of the mounting hole 160 away from the circuit board 120 and is connected to the mounting hole 160, and at least a portion of the light source assembly 170 is disposed in the mounting hole 160 through the opening 116; the split encoder 100 also includes an insulating portion 240, which is disposed at the opening 116.

[0094] In this embodiment, the main body 110 is further provided with an opening 116. Specifically, the opening 116 is located at a side of the mounting hole 160 away from the circuit board 120, that is, the opening 116 is located at the bottom of the main body 110. The opening 116 is communicated with the mounting hole 160, and at least a portion of the light source assembly 170 is inserted into the mounting hole 160 through the opening 116, so as to realize the rapid installation of the light source assembly 170.

[0095] The insulating portion 240 is disposed at the opening 116 . When the split encoder 100 is mounted on a motor, the risk of a potential short circuit caused by the light source assembly 170 being too close to the metal surface corresponding to the motor can be avoided, thereby improving the reliability of the split encoder 100 .

[0096] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0097] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0098] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A split encoder, characterized in that: include: A main body, wherein the main body is provided with a through hole and a groove that are connected to each other; A circuit board is arranged at the notch of the groove and is enclosed with the groove wall of the groove to form a mounting cavity; A code disc assembly, the code disc assembly comprising a connected code disc and a code disc shaft, the first end of the code disc shaft being disposed in the through hole, the second end of the code disc shaft being located in the mounting cavity, and the code disc being disposed at the second end of the code disc shaft; A photocell is disposed on a side of the circuit board facing the code disc assembly and has a gap between the photocell and the code disc; A mounting hole, provided in the main body and communicated with the mounting cavity; A light source assembly, at least a portion of which is disposed in the mounting hole and is opposite to the photocell along the axial direction of the code disc axis.

2. The split encoder according to claim 1, characterized in that: Also includes: The insulating structure is arranged between the hole wall of the mounting hole and the light source assembly.

3. The split encoder according to claim 2, characterized in that: The insulating structure includes a first insulating layer, and the first insulating layer is arranged on at least one of a hole wall of the mounting hole and the light source assembly.

4. The split encoder according to claim 1, characterized in that: The main body is a plastic part.

5. The split encoder according to any one of claims 1 to 4, characterized in that: The main body is further provided with a through hole, one end of the through hole is connected to the mounting hole, and the other end of the through hole is connected to the groove; The light source assembly comprises: light source; A pin, one end of which is connected to the light source, and the other end of which passes through the via hole and is connected to the circuit board.

6. The split encoder according to claim 5, characterized in that: Also includes: The second insulating layer is arranged on the outer side of the pin and / or on the hole wall of the via hole.

7. The split encoder according to any one of claims 1 to 4, characterized in that: The main body is also provided with a limiting channel and a mounting channel, the limiting channel is communicated with the through hole and at least partially extends along the radial direction of the code disk shaft, the code disk shaft is provided with a limiting portion and a matching hole, the matching hole is communicated with the through hole, one end of the mounting channel is communicated with the matching hole, and the other end of the mounting channel is communicated with the outside; The split encoder also includes: A limiting member, wherein the limiting member can be inserted into or removed from the limiting passage, and when the limiting member is inserted into the limiting passage, the limiting member is detachably connected to the limiting portion; A fastener, disposed in the matching hole; Wherein, when the number of at least one of the limiting channels and the mounting channels is plural, the light source assembly is located between any two adjacent limiting channels, or the light source assembly is located between any two adjacent mounting channels, or the light source assembly is located between any adjacent mounting channel and the limiting channel.

8. The split encoder according to any one of claims 1 to 4, characterized in that: Also includes: A fixing member, wherein the light source assembly is fixed in the mounting hole through the fixing member.

9. The split encoder according to claim 8, characterized in that: The fixing part includes an adhesive part, which is arranged in the mounting hole and connected to the light source assembly; or the fixing part includes an elastic part, which is sleeved on the outside of the light source assembly and located in the mounting hole, and the elastic part has deformation; or the fixing part includes a buckle, which is arranged on the main body and is connected with the light source assembly.

10. The split type encoder according to any one of claims 1 to 4, characterized in that: The main body is further provided with an opening, the opening is located on a side of the mounting hole away from the circuit board and is communicated with the mounting hole, and at least part of the light source assembly is disposed in the mounting hole through the opening; The split encoder also includes: The insulating portion is arranged at the opening.

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