High-performance encoder with self-protection function
By employing an adaptive sealing structure and thermal adjustment, the problem of balancing protection and heat dissipation in traditional encoders is solved, achieving efficient heat dissipation and protection through dynamic adjustment, thereby improving encoder performance.
Patent Information
- Application Number
- CN202511810585.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-02-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional encoders struggle to balance protection and heat dissipation. Their sealed design hinders heat dissipation and lacks dynamic adjustment capabilities, affecting encoding accuracy and component lifespan.
It adopts an adaptive sealing structure with annular groove, vent block and thermal spring. The opening and closing of the vent channel is adjusted by the extension and contraction of the thermal spring to realize the dynamic adjustment of the switching between protection and heat dissipation modes. Combined with the design of fan blades and pump chamber, the heat dissipation efficiency is enhanced.
It realizes automatic adjustment of protection and heat dissipation modes under different working conditions, which improves the heat dissipation efficiency and protection effect of the encoder and extends the life of components.
Smart Images
Figure CN121521168A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of encoder, in particular to a high-performance encoder with self-protection function. BACKGROUND
[0002] The internal precision components of the encoder are vulnerable to dust and water vapor erosion, and there is a common problem that protection and heat dissipation are difficult to balance. Although the traditional sealed shell can isolate impurities, it hinders heat dissipation. If the heat generated by high-speed operation cannot be discharged in time, the encoding accuracy will be reduced and the components will be aged. The fixed heat dissipation hole design of the traditional encoder is easy to introduce impurities in the non-heat dissipation state, and lacks dynamic adjustment capability, and cannot adaptively switch between protection and heat dissipation modes according to the working condition changes. Therefore, developing a high-performance encoder with dynamic balance performance and compact structure has become the focus of industry technology research. SUMMARY
[0003] The purpose of the present application is to provide a high-performance encoder with self-protection function to solve the above problems in the prior art.
[0004] The purpose of the present application is achieved by the following technical scheme: a high-performance encoder with self-protection function, comprising a shell; a sealed cavity is arranged in the shell; a rotating shaft is rotatably arranged in the sealed cavity; An annular groove is arranged in the shell; the annular groove is provided with an annular elastic liquid bag; a plurality of expansion grooves are formed in the shell and communicate with the annular groove; the expansion grooves are sealingly and slidingly provided with a ventilation block; the ventilation block is slidingly arranged in the shell; a ventilation spring is arranged between the ventilation block and the expansion groove, and the ventilation spring is used to abut the ventilation block and the annular elastic liquid bag; the shell is provided with a ventilation port which communicates with the expansion groove and the sealed cavity; the ventilation block is provided with a ventilation channel which communicates with the ventilation port; An annular liquid storage cavity which communicates with the annular elastic liquid bag is arranged in the sealed cavity; a piston is slidingly arranged in the sealed cavity; the piston is provided with a piston rod; the piston rod is sealingly and slidingly arranged in the annular liquid storage cavity; a heat-sensitive spring is arranged between the top of the piston and the sealed cavity.
[0005] The present application further provides that a fan blade is rotatably arranged in the sealed cavity; and a clutch mechanism is arranged between the fan blade and the rotating shaft.
[0006] The present application further provides that the clutch mechanism comprises a lifting seat which is slidingly arranged on the top of the annular liquid storage cavity, a lifting spring which is arranged between the lifting seat and the annular liquid storage cavity, a connecting sleeve which is rotatably arranged on the lifting seat, and a linkage assembly which is slidingly arranged in the sealed cavity; the connecting sleeve is fixedly connected with the fan blade; the connecting sleeve is provided with a clamping groove; and the outer wall of the rotating shaft is provided with a clamping strip which cooperates with the clamping groove.
[0007] The application is further provided with a sliding seat horizontally sliding in the sealed cavity; the bottom of the sliding seat is provided with an inclined guide column; the piston is movably sleeved on the inclined guide column; the lifting seat is provided with a first inclined surface; the sliding seat is provided with a second inclined surface abutting against the first inclined surface.
[0008] The application is further provided with a bearing between the connecting sleeve and the lifting seat.
[0009] The application is further provided with a driving pump at the top of the lifting seat; a pump cavity is arranged in the driving pump; an eccentric wheel is rotatably arranged in the pump cavity; a first vane is movably arranged at one end of the eccentric wheel; a second vane is movably arranged at the other end of the eccentric wheel; the first vane and the second vane respectively abut against the inner wall of the pump cavity; first water inlets are arranged at both ends of the pump cavity; and the first water inlets are used for communicating with the annular elastic liquid bag.
[0010] The application is further provided with an upper cavity and a lower cavity in the sliding seat; a water passage is arranged between the upper cavity and the lower cavity; the annular elastic liquid bag is provided with second water inlets; the first water inlets are sealingly and slidably arranged in the upper cavity; and the second water inlets are sealingly and slidably arranged in the lower cavity.
[0011] The application is further provided with an eccentric shaft arranged at the back of the eccentric wheel protruding out of the pump cavity; the connecting sleeve is provided with a driving groove; and the driving groove is used for matingly connecting with the eccentric shaft.
[0012] The application is further provided with a filter arranged in the air passage.
[0013] The application is further provided with a ventilation opening in the bottom of the shell and communicating with the sealed cavity; and the ventilation opening is provided with a one-way valve.
[0014] The application has the following beneficial effects: when the temperature of the sealed cavity is normal, the heat-sensitive spring is in a contracted state, the air passage of the air block is staggered with the air outlet, the sealed cavity is in a completely sealed state, and dust and water vapor are prevented from entering; when the temperature of the sealed cavity is increased, the heat-sensitive spring is elongated by heat, the air passage of the air block is aligned with the air outlet, the sealed cavity is communicated with the outside, and the heat dissipation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is a structural schematic view of the application; Figure 2 is a sectional view of the application from a first perspective; Figure 3 is Figure 2 is a local enlarged view of the A part in Figure 4 is a sectional view of the application from a second perspective; Figure 5 is Figure 4 is a local enlarged view of the B part in the middle of the figure; Figure 6 is a sectional view of the third perspective of the invention; Figure 7 is a sectional view of the fourth perspective of the invention; Wherein: 1, the shell; 11, the sealed cavity; 12, the annular groove; 13, the telescopic groove; 14, the air vent; 2, the rotating shaft; 21, the clamping strip; 31, the annular elastic liquid bag; 32, the annular liquid storage cavity; 33, the second water inlet; 4, the air vent block; 41, the air spring; 42, the air passage; 43, the filter; 5, the piston; 51, the piston rod; 52, the heat-sensitive spring; 6, the lifting seat; 61, the lifting spring; 62, the bearing; 63, the connecting sleeve; 64, the fan blade; 65, the clamping groove; 66, the driving groove; 7, the sliding seat; 71, the inclined guide column; 72, the upper cavity; 73, the lower cavity; 74, the water inlet; 8, the driving pump; 81, the pump cavity; 82, the eccentric wheel; 83, the first blade; 84, the second blade; 85, the first water inlet; 86, the eccentric shaft; 9, the air vent; 91, the one-way valve. DETAILED DESCRIPTION
[0016] The invention is further described in conjunction with the following examples.
[0017] As Figures 1 to 7 can be seen, the high-performance encoder with self-protection function described in the embodiment comprises a shell 1; the shell 1 is provided with a sealed cavity 11; the sealed cavity 11 is provided with a rotating shaft 2; The shell 1 is provided with an annular groove 12; the annular groove 12 is provided with an annular elastic liquid bag 31; the shell 1 is provided with a plurality of telescopic grooves 13 which are in communication with the annular groove 12; the telescopic grooves 13 are provided with an air vent block 4 which is sealingly and slidingly movable; the air vent block 4 is slidingly movable in the shell 1; the air vent block 4 and the telescopic groove 13 are provided with an air spring 41, which is used to make the air vent block 4 abut against the annular elastic liquid bag 31; the shell 1 is provided with an air vent 14 which is in communication with the telescopic groove 13 and the sealed cavity 11; the air vent block 4 is provided with an air passage 42 which is in communication with the air vent 14; The sealed cavity 11 is provided with an annular liquid storage cavity 32 which is in communication with the annular elastic liquid bag 31; the sealed cavity 11 is provided with a piston 5 which is slidingly movable; the piston 5 is provided with a piston rod 51; the piston rod 51 is sealingly and slidingly movable in the annular liquid storage cavity 32; the top of the piston 5 and the sealed cavity 11 are provided with a heat-sensitive spring 52.
[0018] Specifically, the high-performance encoder with self-protection function in the embodiment is characterized in that when the temperature of the sealed cavity 11 is normal, the heat-sensitive spring 52 is in a natural contraction state, so that the piston member 5 drives the piston rod 51 to move to the top of the annular liquid storage cavity 32, and the liquid in the annular liquid storage cavity 32 flows into the annular elastic liquid bag 31, at this time, the annular elastic liquid bag 31 is in an inflation state, and the air vent block 4 is driven to move outward to overcome the effect of the air vent spring 41, at this time, the air passage 42 of the air vent block 4 is misaligned with the air vent 14, so that the sealed cavity 11 is in a completely sealed state to prevent dust and water vapor from entering.
[0019] When the temperature of the sealed cavity 11 rises, the heat-sensitive spring 52 is heated and elongated, so that the piston member 5 drives the piston rod 51 to move downward, and the liquid in the annular elastic liquid bag 31 is pumped to the annular liquid storage cavity 32, so that the elasticity of the annular elastic liquid bag 31 is weakened, and after the elasticity of the air vent spring 41 is greater than that of the annular elastic liquid bag 31, the air vent block 4 is driven to move inward, until the air passage 42 of the air vent block 4 is aligned with the air vent 14 to communicate, so that the sealed cavity 11 is communicated with the outside, thereby improving the heat dissipation efficiency.
[0020] The embodiment is characterized in that when the temperature of the sealed cavity 11 is normal, the heat-sensitive spring 52 is in a contraction state, so that the air passage 42 of the air vent block 4 is misaligned with the air vent 14, and the sealed cavity 11 is in a completely sealed state to prevent dust and water vapor from entering; when the temperature of the sealed cavity 11 rises, the heat-sensitive spring 52 is heated and elongated, so that the air passage 42 of the air vent block 4 is aligned with the air vent 14 to communicate, and the sealed cavity 11 is communicated with the outside, thereby improving the heat dissipation efficiency.
[0021] The high-performance encoder with self-protection function is characterized in that a fan blade 64 is arranged in the sealed cavity 11; and a clutch mechanism is arranged between the fan blade 64 and the rotating shaft 2. The high-performance encoder with self-protection function is characterized in that the clutch mechanism comprises a lifting seat 6 arranged on the top of the annular liquid storage cavity 32, a lifting spring 61 arranged between the lifting seat 6 and the annular liquid storage cavity 32, a connecting sleeve 63 rotatably arranged on the lifting seat 6, and a linkage assembly movably arranged in the sealed cavity 11; the connecting sleeve 63 is fixedly connected with the fan blade 64; the connecting sleeve 63 is provided with a clamping groove 65; and the outer wall of the rotating shaft 2 is provided with a clamping strip 21 matched with the clamping groove 65. The high-performance encoder with self-protection function is characterized in that the bottom of the shell 1 is provided with a ventilation opening 9 communicated with the sealed cavity 11; and the ventilation opening 9 is provided with a one-way valve 91. The high-performance encoder with self-protection function is characterized in that the linkage assembly comprises a sliding seat 7 horizontally slidably arranged in the sealed cavity 11; the bottom of the sliding seat 7 is provided with an inclined guide column 71; the piston member 5 is movably sleeved on the inclined guide column 71; the lifting seat 6 is provided with a first inclined surface; and the sliding seat 7 is provided with a second inclined surface abutting against the first inclined surface.
[0022] Specifically, in this embodiment, the high-performance encoder with self-protection function has a thermal spring 52 in a naturally contracted state when the temperature of the sealed cavity 11 is normal. At this time, the card slot 65 and the card strip 21 are not in contact, and the rotating shaft 2 rotates independently.
[0023] When the temperature of the sealed cavity 11 rises, the thermal spring 52 stretches due to heat, causing the piston 5 to drive the piston rod 51 to move downwards, drawing the liquid in the annular elastic liquid bladder 31 into the annular liquid storage cavity 32. This weakens the elasticity of the annular elastic liquid bladder 31. When the elasticity of the ventilation spring 41 is greater than that of the annular elastic liquid bladder 31, it pushes the ventilation block 4 to move inwards until the ventilation channel 42 of the ventilation block 4 aligns and connects with the ventilation port 14, allowing the sealed cavity 11 to connect with the outside. In addition, when the piston 5 moves downwards, it drives the sliding seat 7 to move towards the inner wall of the sealed cavity 11 through the inclined guide post 71. Furthermore, under the action of the lifting spring 61, the lifting seat 6 moves upwards, thereby driving the connecting sleeve 63 to move upwards, causing the slot 65 to engage with the locking strip 21. At this time, the rotating shaft 2 can drive the connecting sleeve 63 and the fan blade 64 to rotate synchronously, thereby generating airflow between the ventilation channel 42, the ventilation port 14, the sealed cavity 11, and the ventilation opening 9, greatly improving the heat dissipation efficiency of the high-performance encoder.
[0024] The high-performance encoder with self-protection function described in this embodiment has a bearing 62 provided between the connecting sleeve 63 and the lifting base 6. This arrangement facilitates the rotation of the connecting sleeve 63.
[0025] This embodiment describes a high-performance encoder with self-protection function. The top of the lifting base 6 is equipped with a drive pump 8; the drive pump 8 has a pump chamber 81; an eccentric wheel 82 is rotatably mounted inside the pump chamber 81; one end of the eccentric wheel 82 has a first blade 83 that can be extended and retracted; the other end of the eccentric wheel 82 has a second blade 84 that can be extended and retracted; the first blade 83 and the second blade 84 respectively abut against the inner wall of the pump chamber 81; springs are provided between the first blade 83 and the eccentric wheel 82, and between the second blade 84 and the eccentric wheel 82; both ends of the pump chamber 81 have first water inlets 85; the first water inlets 74 are used to communicate with an annular elastic liquid bladder 31.
[0026] Specifically, in this embodiment, through the above-described configuration, when the eccentric wheel 82 rotates, it can drive the liquid to circulate between the annular liquid storage chamber 32, the annular elastic liquid bladder 31, and the pump chamber 81, thereby transferring the heat inside the sealed cavity 11 to the housing 1, thus further enhancing the heat dissipation efficiency.
[0027] This embodiment describes a high-performance encoder with self-protection function. The sliding base 7 has an upper cavity 72 and a lower cavity 73; a water inlet 74 connects the upper cavity 72 and the lower cavity 73; the annular elastic fluid bladder 31 has a second water inlet 33; the first water inlet 85 is slidably and sealed in the upper cavity 72; the second water inlet 33 is slidably and sealed in the lower cavity 73. In this embodiment, the eccentric wheel 82 protrudes from the pump cavity 81 and has an eccentric shaft 86; the connecting sleeve 63 has a drive groove 66; the drive groove 66 is used for mating with the eccentric shaft 86.
[0028] Specifically, in this embodiment, the high-performance encoder with self-protection function, when the temperature of the sealed cavity 11 is normal, the thermal spring 52 is in a naturally contracted state, causing the piston 5 to drive the piston rod 51 to move to the top of the annular liquid storage cavity 32. The liquid in the annular liquid storage cavity 32 flows into the annular elastic liquid bladder 31. At this time, the annular elastic liquid bladder 31 is in an expanded state, pushing the vent block 4 to move outward against the action of the vent spring 41. At this time, the vent channel 42 of the vent block 4 is misaligned with the vent port 14, so that the sealed cavity 11 is in a completely sealed state, preventing dust and moisture from entering. In addition, when the temperature of the sealed cavity 11 is normal, the thermal spring 52 is in a naturally contracted state. At this time, the slot 65 and the strip 21 are not in contact, and the rotating shaft 2 rotates independently. Furthermore, when the temperature of the sealed cavity 11 is normal, the first water inlet 85 and the second water inlet 33 are not connected, and the drive groove 66 and the eccentric shaft 86 are not in contact, and the rotating shaft 2 rotates independently.
[0029] When the temperature of the sealed cavity 11 rises, the thermal spring 52 extends due to heat, causing the piston 5 to move downwards along the piston rod 51, drawing the liquid from the annular elastic bladder 31 into the annular storage cavity 32. This weakens the elasticity of the annular elastic bladder 31, and when the elasticity of the venting spring 41 exceeds that of the annular elastic bladder 31, it pushes the venting block 4 inwards until the venting channel 42 of the venting block 4 aligns and connects with the venting port 14, allowing the sealed cavity 11 to connect with the outside. Next, as the piston 5 moves downwards, it drives the sliding seat 7 to move towards the inner wall of the sealed cavity 11 via the inclined guide post 71. Under the action of the lifting spring 61, the lifting seat 6 moves upwards, thereby driving the connecting sleeve 63 upwards, causing the slot 65 to engage with the locking strip 21. At this time, the rotating shaft 2 can... The connecting sleeve 63 and the fan blade 64 rotate synchronously, thereby generating airflow between the ventilation channel 42, the ventilation port 14, the sealing cavity 11, and the ventilation port 9, which greatly improves the heat dissipation efficiency of the high-performance encoder. In addition, as the sliding seat 7 moves towards the inner wall of the sealing cavity 11, the water inlet 74 connects with the first water inlet 85 and the second water inlet 33 respectively. After the lifting seat 6 drives the connecting sleeve 63 to move upward, the drive groove 66 engages with the eccentric shaft 86. At this time, the rotating shaft 2 can drive the connecting sleeve 63 and the eccentric wheel 82 to rotate, which can drive the liquid to circulate between the annular liquid storage cavity 32, the annular elastic liquid bladder 31, and the pump cavity 81, thereby transferring the heat inside the sealing cavity 11 to the housing 1, thereby further enhancing the heat dissipation efficiency.
[0030] The high-performance encoder with self-protection function described in this embodiment includes a filter element 43 in the ventilation channel 42. This design prevents dust from entering the sealed cavity 11.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.
Claims
1. A high-performance encoder with self-protection function, characterized in that: It includes a housing (1); a sealed cavity (11) is provided inside the housing (1); a rotating shaft (2) is rotatably provided inside the sealed cavity (11); The housing (1) is provided with an annular groove (12); the annular groove (12) is provided with an annular elastic liquid bladder (31); the housing (1) is provided with a plurality of telescopic grooves (13) communicating with the annular groove (12); the telescopic groove (13) is provided with a vent block (4) in a sealed sliding motion; the vent block (4) is telescopically movably provided in the housing (1); a vent spring (41) is provided between the vent block (4) and the telescopic groove (13), and the vent spring (41) is used to make the vent block (4) abut against the annular elastic liquid bladder (31); the housing (1) is provided with a vent (14) communicating with the telescopic groove (13) and the sealed cavity (11); the vent block (4) is provided with a venting channel (42) for communicating with the vent (14); The sealed cavity (11) is provided with an annular liquid storage cavity (32) communicating with the annular elastic liquid bladder (31); the sealed cavity (11) is provided with a piston component (5) that moves up and down; the piston component (5) is provided with a piston rod (51); the piston rod (51) is sealed and moves up and down in the annular liquid storage cavity (32); a thermal spring (52) is provided between the top of the piston component (5) and the sealed cavity (11).
2. The high-performance encoder with self-protection function according to claim 1, characterized in that: A fan blade (64) is rotatably disposed inside the sealed cavity (11); a clutch mechanism is provided between the fan blade (64) and the rotating shaft (2).
3. A high-performance encoder with self-protection function according to claim 2, characterized in that: The clutch mechanism includes a lifting seat (6) that is movably mounted on the top of the annular liquid storage chamber (32), a lifting spring (61) located between the lifting seat (6) and the annular liquid storage chamber (32), a connecting sleeve (63) rotatably mounted on the lifting seat (6), and a linkage assembly movably mounted in the sealing chamber (11); the connecting sleeve (63) is fixedly connected to the fan blade (64); the connecting sleeve (63) is provided with a slot (65); the outer wall of the rotating shaft (2) is provided with a retaining strip (21) that cooperates with the slot (65).
4. A high-performance encoder with self-protection function according to claim 3, characterized in that: The linkage assembly includes a sliding seat (7) that is horizontally slidably disposed in the sealed cavity (11); the bottom of the sliding seat (7) is provided with an inclined guide post (71); the piston (5) is movably sleeved on the inclined guide post (71); the lifting seat (6) is provided with a first inclined surface; the sliding seat (7) is provided with a second inclined surface that abuts against the first inclined surface.
5. A high-performance encoder with self-protection function according to claim 3, characterized in that: A bearing (62) is provided between the connecting sleeve (63) and the lifting seat (6).
6. A high-performance encoder with self-protection function according to claim 4, characterized in that: The top of the lifting seat (6) is provided with a drive pump (8); the drive pump (8) is provided with a pump chamber (81); an eccentric wheel (82) is rotatably provided in the pump chamber (81); a first blade (83) is provided at one end of the eccentric wheel (82); a second blade (84) is provided at the other end of the eccentric wheel (82); the first blade (83) and the second blade (84) respectively abut against the inner wall of the pump chamber (81); a first water inlet (85) is provided at both ends of the pump chamber (81); the first water inlet (74) is used to communicate with the annular elastic liquid bladder (31).
7. A high-performance encoder with self-protection function according to claim 6, characterized in that: The sliding seat (7) is provided with an upper cavity (72) and a lower cavity (73); a water inlet (74) is provided between the upper cavity (72) and the lower cavity (73); the annular elastic liquid bladder (31) is provided with a second water inlet (33); the first water inlet (85) is slidably and sealed in the upper cavity (72); the second water inlet (33) is slidably and sealed in the lower cavity (73).
8. A high-performance encoder with self-protection function according to claim 7, characterized in that: The eccentric wheel (82) protrudes from the pump chamber (81) and is provided with an eccentric shaft (86); the connecting sleeve (63) is provided with a drive groove (66); the drive groove (66) is used to connect with the eccentric shaft (86) in a mate.
9. A high-performance encoder with self-protection function according to claim 1, characterized in that: The ventilation channel (42) is equipped with a filter (43).
10. A high-performance encoder with self-protection function according to claim 1, characterized in that: The bottom of the housing (1) is provided with a vent (9) that communicates with the sealed cavity (11); the vent (9) is provided with a one-way valve (91).