Outgoing connectors and servo motors

Abstract

This invention relates to a cable outlet connector and a servo motor, belonging to the field of motor application technology, and is used to solve the problem of increased height at the motor tail end caused by the cable outlet structure. The cable outlet connector includes a cable outlet connector disposed within the cable outlet hole of an encoder cover. It comprises: a body with a through-hole, the body being disposed within the cable outlet hole; and a sealing member disposed between the body and the cable outlet hole, the sealing member sealing the gap between the body and the cable outlet hole; wherein, the encoder wire inside the encoder cover passes through the through-hole of the body, and the encoder wire is sealed to the through-hole. In this invention, the cable outlet connector is disposed within the cable outlet hole of the encoder cover, thus completely concealing the cable outlet connector within the cable outlet hole of the encoder cover, thereby preventing an increase in the height at the motor tail end. This design saves space when the motor is installed on the equipment, making the overall design of the equipment more compact and smaller, thus meeting the miniaturization design requirements of the equipment.

Description

Technical Field

[0001] This invention relates to the field of motor application technology, and in particular to a cable connector and a servo motor. Background Technology

[0002] Currently, with the rapid development of modern industry, the demand for motors in all walks of life is increasing, which promotes the development of motors. In the process of development, the requirements for the structural design of motors are also getting higher and higher, such as the size of motors and waterproof rating, and they are becoming smaller and smaller.

[0003] However, the existing encoder cable exit structure of servo motors includes a cable exit box and a waterproof connector. The cable exit box is mostly a square box. This cable exit structure will increase the height of the motor tail end, requiring more space to be reserved when installing on the equipment. This goes against the current trend of miniaturization of equipment and cannot meet the miniaturization design requirements of the equipment.

[0004] In other words, the existing wiring structure causes an increase in the height of the motor tail end. Summary of the Invention

[0005] This invention provides a cable outlet connector and a servo motor to solve the problem of increased motor tail height caused by the cable outlet structure.

[0006] The present invention provides a cable outlet connector, comprising a cable outlet connector disposed in a cable outlet hole of a component to be connected, comprising: a body having a through hole and the body being disposed in the cable outlet hole; and a sealing member disposed between the body and the cable outlet hole, the sealing member being used to seal the gap between the body and the cable outlet hole; wherein, the cable in the component to be connected passes through the through hole of the body and the cable outlet is sealed to the through hole.

[0007] In one embodiment, the outer diameter of the body is larger than the inner diameter of the outlet hole, and the body and the outlet hole are interference-fitted. In this embodiment, due to the interference fit between the body and the outlet hole, it is ensured that the body can be fixed inside the outlet hole. This ensures that the outlet connector subsequently achieves its sealing connection function.

[0008] In one embodiment, the body is an elastic telescopic component, and the body is made of rubber or synthetic resin material.

[0009] In one embodiment, a sealing groove is provided on the outer periphery of the body, and a seal is disposed within the sealing groove to seal the gap between the body and the outlet hole. In this embodiment, the seal prevents external impurities and liquids from flowing into the encoder cover through the gap between the body and the outlet hole, thereby preventing damage to components located inside the motor, such as the encoder.

[0010] In one embodiment, an injection hole is provided at the end of the main body exposed to the component to be connected. The injection hole communicates with a sealing groove. A sealing gap is defined between the inner wall of the outlet hole, the outer peripheral wall of the main body, and the sealing groove. Sealant is injected into the sealing gap through the injection hole. After solidification, the sealant forms a sealing layer, which serves as a seal. In this embodiment, pressure is applied to the sealing gap through the injection hole to ensure that the sealant fills the gap completely. This allows the solidified sealing layer to completely seal the gap, thereby enhancing the sealing ability of the sealing layer and thus improving the sealing performance of the outlet connector.

[0011] In one embodiment, the sealing groove includes: a spiral groove segment arranged around the central axis of the body, the spiral groove segment having a starting end and a terminating end, the starting end being near the end of the body exposed to be connected, and the terminating end being near the other end of the body; and an annular groove segment communicating with the terminating end of the spiral groove segment; wherein the starting end is connected to an injection hole, and the sealant flows into the annular groove segment sequentially through the injection hole and the spiral groove segment. In this embodiment, the spiral groove segment has a guiding function, enabling the sealant to be quickly introduced into the bottom annular groove segment. The sealant in the annular groove segment can first solidify to form a first sealant layer, which acts as a first sealing barrier, sealing the gap between the body and the outlet hole. Subsequently, the sealant in the spiral groove segment solidifies to form a second sealant layer, which acts as a second sealing barrier, sealing the gap between the body and the outlet hole. In this way, the first and second sealing barriers can jointly seal the gap between the body and the outlet hole, thereby enhancing the sealing ability of the sealant layer and thus enhancing the sealing performance of the outlet connector.

[0012] In one embodiment, the depth d1 of the spiral groove section ranges from 2mm to 3mm, and / or the helix angle β1 of the spiral groove section ranges from 55° to 60°, and / or the groove width b1 of the spiral groove section ranges from b1 to 0.15D, where D is the outer diameter of the body. In this embodiment, the dimensions are set within the above-mentioned ranges. This optimizes the structural design of the sealing groove, thereby enhancing the sealing ability of the sealing adhesive layer and thus improving the sealing performance of the cable outlet connector.

[0013] In one embodiment, the depth d2 of the annular groove segment ranges from 2mm to 3mm, and / or the groove width b2 ranges from 2.5mm to 3.5mm. In this embodiment, the dimensions are set within the above ranges. This optimizes the structural design of the sealing groove, thereby enhancing the sealing ability of the sealant layer and ultimately improving the sealing performance of the cable outlet connector.

[0014] In one embodiment, the sealing groove is a spiral groove with a starting end and a ending end. The starting end is close to the body and exposes one end of the part to be connected, while the ending end is close to the other end of the body. The starting end is connected to the injection hole.

[0015] In one embodiment, the depth d3 of the spiral groove ranges from 2mm to 3mm, and / or the spiral angle β2 ranges from 55° to 60°, and / or the groove width b2 ranges from b2 to 0.15D, where D is the outer diameter of the body. In this embodiment, the dimensions are set within the above ranges. This optimizes the structural design of the sealing groove, thereby enhancing the sealing ability of the sealing adhesive layer and ultimately improving the sealing performance of the cable outlet connector.

[0016] In one embodiment, the sealing groove includes at least one annular sealing groove, which communicates with the injection hole.

[0017] In one embodiment, when the sealing groove includes multiple annular sealing grooves, the multiple annular sealing grooves are spaced apart along the central axis of the body, wherein at least one connecting hole is provided between two adjacent annular sealing grooves, and the sealant flows into the multiple annular sealing grooves through the injection hole and the connecting hole. In this embodiment, multiple sealant layers are formed within the multiple annular sealing grooves, and the multiple sealant layers form multiple sealing barriers to jointly seal the gap between the body and the outlet hole. This improves the waterproof capability of the outlet connector.

[0018] In one embodiment, the depth d4 of the sealing groove ranges from 2mm to 3mm, and / or the width b3 of the sealing groove ranges from 2.5mm to 3.5mm. In this embodiment, the dimensions are set within the above ranges. This optimizes the structural design of the sealing groove, thereby enhancing the sealing ability of the sealant layer and ultimately improving the sealing performance of the cable outlet connector.

[0019] The present invention also provides a servo motor, comprising: a rear end cover; an encoder cover disposed on the rear end cover; an encoder disposed on the rear end cover, the encoder being located inside the encoder cover; a wire outlet connector, wherein the component to be connected is the encoder cover, the wire outlet connector is disposed in the wire outlet hole of the encoder cover; and a wire, one end of which passes through the wire outlet connector and exits the encoder cover, and the other end of which is electrically connected to the encoder.

[0020] Compared with existing technologies, the advantage of this invention is that the cable outlet connector is located inside the cable outlet hole of the encoder cover, thus completely concealing the connector within the hole. In other words, the cable outlet connector is embedded within the encoder cover, preventing any increase in the height of the motor tail end and avoiding the problem of increased motor tail end height caused by existing cable outlet structures. This design saves space when the motor is installed on the equipment, resulting in a more compact and smaller overall design, thus meeting the miniaturization requirements of the equipment. Attached Figure Description

[0021] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0022] Figure 1 This is a structural diagram of the cable outlet connector in Embodiment 1 of the present invention;

[0023] Figure 2 This is a structural diagram of the cable outlet connector in Embodiment 2 of the present invention;

[0024] Figure 3 This is a structural diagram of the cable outlet connector in Embodiment 3 of the present invention;

[0025] Figure 4 This is a structural diagram of the servo motor in Embodiment 4 of the present invention.

[0026] Figure label:

[0027] 10. Body; 11. Wire hole; 12. Sealing groove; 121. Spiral groove section; 1211. Starting end; 1212. Ending end; 122. Annular groove section; 123. Annular sealing groove; 124. Spiral groove; 13. Injection hole; 14. Connecting hole; 100. Outlet connector; 200. Encoder cover; 201. Outlet hole; 300. Encoder wire; 400. Rear end cover; 500. Encoder; 600. Housing; 701. Motor shaft. Detailed Implementation

[0028] The invention will now be further described with reference to the accompanying drawings.

[0029] It should be noted that an electric motor (English: Electric machinery, commonly known as a "motor") is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. In circuit diagrams, an electric motor is represented by the letter M (D in older standards). Its main function is to generate driving torque, serving as a power source for electrical appliances or various machines. A generator, represented by the letter G in circuit diagrams, primarily converts mechanical energy into electrical energy.

[0030] It should be noted that the rotor inside the servo motor is a permanent magnet. The U / V / W three-phase electricity controlled by the driver forms an electromagnetic field, and the rotor rotates under the action of this magnetic field. At the same time, the encoder built into the motor feeds back a signal to the driver. The driver compares the feedback value with the target value and adjusts the rotation angle of the rotor.

[0031] It should be noted that the cable outlet connector 100 in this application is used for a servo motor, the component to be connected in this application is the encoder cover 200, the cable outlet is the encoder cable 300, and the cable outlet connector 100 is used to seal and connect the encoder cable 300 and the encoder cover 200 together.

[0032] Of course, the cable outlet connector 100 in this application is not limited to servo motors, but can also be applied to other components.

[0033] Example 1

[0034] like Figure 1 As shown, the present invention provides a cable outlet connector 100, which is disposed within the cable outlet hole 201 of an encoder cover 200. The cable outlet connector 100 includes a body 10 and a sealing member. The body 10 has a through-hole 11 and is disposed within the cable outlet hole. The sealing member is disposed between the body 10 and the cable outlet hole 201, sealing the gap between the body 10 and the cable outlet hole 201. An encoder wire 300 within the encoder cover 200 passes through the through-hole 11 of the body 10, and the encoder wire 300 is sealed to the through-hole 11.

[0035] In the above configuration, the cable outlet connector 100 is located within the cable outlet hole 201 of the encoder cover 200, thus completely concealing the cable outlet connector 100 within the cable outlet hole 201 of the encoder cover 200. That is, the cable outlet connector 100 is embedded within the encoder cover 200, thereby preventing any increase in the height of the motor tail end and avoiding the problem of increased motor tail end height caused by existing cable outlet structures. This design saves space when the motor is installed on the equipment, resulting in a more compact and smaller overall design, thus meeting the miniaturization requirements of the equipment.

[0036] Furthermore, this invention achieves a sealed connection between the encoder cable 300 and the encoder cover 200 simply by providing the cable outlet connector 100. This eliminates the need for a separate motor encoder cable outlet box and waterproof connector, as required in existing technologies, which rely on a combination of these two components to achieve the sealed connection. This simplifies the sealing connection structure and cable outlet structure of the encoder cable 300 and encoder cover 200, thereby reducing the manufacturing cost of the servo motor.

[0037] It should be noted that there is no gap between the encoder wire 300 and the wire hole 11. The two are interference fit, and the sealing effect is achieved by the mutual compression of the material elasticity to realize the sealed connection.

[0038] Specifically, such as Figure 1 As shown, in this embodiment, the outer diameter of the body 10 is larger than the inner diameter of the outlet hole 201, and the body 10 and the outlet hole 201 are interference-fitted.

[0039] In the above configuration, the main body 10 and the outlet hole 201 are interference-fitted. This ensures that the main body 10 can be fixed inside the outlet hole 201, thereby ensuring that the outlet connector 100 can subsequently achieve its sealing connection function.

[0040] Specifically, such as Figure 1 As shown, in this embodiment, a sealing groove 12 is provided on the outer periphery of the body 10, and a sealing element is disposed in the sealing groove 12 to seal the gap between the body 10 and the outlet hole 201. This prevents external impurities and liquids from flowing into the encoder cover 200 through the gap between the body 10 and the outlet hole 201, thereby preventing damage to components installed inside the motor, such as the encoder 500.

[0041] Specifically, such as Figure 1 As shown, in this embodiment, the end of the body 10 that protrudes from the encoder cover 200 is provided with an injection hole 13. The injection hole 13 is connected to the sealing groove 12. A sealing gap is defined between the inner wall of the outlet hole 201, the outer peripheral wall of the body 10 and the sealing groove 12. The injection hole 13 can inject sealant into the sealing gap. After the sealant solidifies, it forms a sealant layer, which is a sealing element.

[0042] In the above configuration, pressure is applied to the sealing gap through the injection hole 13 to fill the sealing gap with sealant. This ensures that the sealant layer formed after solidification completely seals the sealing gap, thereby enhancing the sealing ability of the sealant layer and thus improving the sealing performance of the cable outlet connector 100.

[0043] Specifically, in this embodiment, the sealant is a waterproof adhesive.

[0044] Specifically, such as Figure 1As shown, in this embodiment, the sealing groove 12 includes a spiral groove section 121 and an annular groove section 122. The spiral groove section 121 is arranged around the central axis of the body 10. The spiral groove section 121 has a starting end 1211 and a ending end 1212. The starting end 1211 is near the end of the body 10 that exposes the encoder cover 200, and the ending end 1212 is near the other end of the body 10. The annular groove section 122 communicates with the ending end 1212 of the spiral groove section 121, and the starting end 1211 communicates with the injection hole 13. The sealant flows into the annular groove section 122 through the injection hole 13 and the spiral groove section 121 in sequence.

[0045] In the above configuration, the spiral groove section 121 has a guiding function, enabling the sealant to be quickly introduced into the annular groove section 122 at the bottom. The sealant in the annular groove section 122 first solidifies to form a first sealant layer, which acts as the first sealing barrier, sealing the gap between the body 10 and the outlet hole 201. Subsequently, the sealant in the spiral groove section 121 solidifies to form a second sealant layer, which acts as the second sealing barrier, sealing the gap between the body 10 and the outlet hole 201. In this way, the first and second sealing barriers can jointly seal the gap between the body 10 and the outlet hole 201, thereby enhancing the sealing ability of the sealant layer and thus enhancing the sealing performance of the outlet connector 100.

[0046] Specifically, such as Figure 1 As shown, in this embodiment, the body is an elastic telescopic component, and the body is made of rubber or synthetic resin material.

[0047] Specifically, in this embodiment, the depth d1 of the spiral groove section 121 is in the range of 2mm≤d1≤3mm.

[0048] Specifically, in this embodiment, the range of the helix angle β1 of the helix groove segment 121 is: 55°≤β1≤60°.

[0049] Specifically, in this embodiment, the groove width b1 of the spiral groove section 121 is in the range of b1 = 0.15D, where D is the outer diameter of the body 10.

[0050] Specifically, in this embodiment, the depth d2 of the annular groove 122 is in the range of 2mm≤d2≤3mm;

[0051] Specifically, in this embodiment, the range of the groove width b2 of the annular groove segment 122 is: 2.5mm≤b2≤3.5mm.

[0052] In the above settings, the depth d1 and helix angle β1 of the spiral groove section 121, and the depth d2 and groove width b2 of the annular groove section 122 are set within the above range values. This optimizes the structural design of the sealing groove 12, thereby enhancing the sealing ability of the sealing adhesive layer and thus enhancing the sealing performance of the cable outlet connector 100.

[0053] Specifically, in this embodiment, the groove width b2 of the annular groove segment 122 is equal to 3mm.

[0054] Specifically, such as Figure 1 As shown, in this embodiment, the outlet hole 201 is a cylindrical hole, the body 10 is a cylinder, and the outlet hole 201 is adapted to the body 10.

[0055] Specifically, such as Figure 1 As shown, in this embodiment, the thread hole 11 is a central through hole on the body 10.

[0056] It should be noted that the cable outlet connector 100 is assembled inside the encoder cover 200, flush with the cable outlet (the opening of the cable outlet hole 201) of the encoder cover 200, so that it can be completely hidden inside the cable outlet of the encoder cover 200 without increasing the height of the motor. Its main body (body 10) is cylindrical in shape, and its external dimensions are designed according to the size of the cable outlet hole 201 of the encoder cover 200. The material can be rubber or synthetic resin. A wire through hole 11 is provided in the middle, and its size can be set according to the outer diameter of the encoder cable 300. This structure uses the elastic force of the material to make an interference fit with the cable outlet hole 201 of the encoder cover 200. Since the interference force is too large, the waterproof glue will not flow into the cable outlet hole 201 to form a sealing structure. If the interference force is too small, the sealing effect will be poor and the waterproof effect will be affected. Therefore, a spiral groove section 121 is designed around the outer circle. The spiral groove section 121 extends to the bottom of the body 10, but does not penetrate to the bottom. A certain distance is usually reserved to prevent waterproof glue from flowing into the encoder 500 through the spiral groove section 121 and affecting its normal operation.

[0057] It should be noted that the top of the main body 10 has an opening (injection hole 13) that communicates with the spiral groove section 121 for adding waterproof adhesive after the cable outlet connector 100 is assembled. At the same time, an annular groove section 122 is provided at the end of the spiral groove section 121, which is used to store the waterproof adhesive flowing in through the spiral groove section 121. The annular groove section 122 can inject the waterproof adhesive into the cable outlet hole 201 along its groove. An annular sealing structure is formed in the annular groove section 122 located at the bottom of the main body. That is, after the waterproof adhesive in the annular groove section 122 solidifies, it forms the first sealing adhesive layer to achieve a sealing effect, thereby improving the waterproof effect.

[0058] Example 2

[0059] Example 2 differs from Example 1 in the following ways:

[0060] Specifically, such as Figure 2 As shown, in this embodiment, the sealing groove 12 includes at least one annular sealing groove 123, and the at least one annular sealing groove 123 is in communication with the injection hole 13.

[0061] Specifically, such as Figure 2 As shown, in this embodiment, when the sealing groove 12 includes a plurality of annular sealing grooves 123, the plurality of annular sealing grooves 123 are spaced apart along the central axis of the body 10, wherein at least one connecting hole 14 is provided before two adjacent annular sealing grooves 123, and the sealant flows into the plurality of annular sealing grooves 123 through the connecting hole 14 after passing through the injection hole 13.

[0062] It should be noted that the sealant flows into the first annular sealing groove through the injection hole 13, and then flows into the other annular sealing grooves in sequence through the connecting hole 14.

[0063] Specifically, such as Figure 2 As shown, in this embodiment, the sealing groove 12 includes four annular sealing grooves 123.

[0064] Specifically, such as Figure 2 As shown, in this embodiment, four annular sealing grooves 123 are evenly spaced along the central axis of the body 10. The distance between two adjacent annular sealing grooves 123 is 6 mm.

[0065] Of course, the number and spacing of the annular sealing grooves 123 can be adjusted according to specific circumstances, such as the actual height of the body 10.

[0066] Specifically, in this embodiment, the depth d4 of the sealing groove 12 is in the range of 2mm≤d4≤3mm.

[0067] Specifically, in this embodiment, the value range of the groove width b3 of the sealing groove 12 is: 2.5mm≤b3≤3.5mm.

[0068] Specifically, in this embodiment, the width b3 of the sealing groove 12 is 3mm.

[0069] Specifically, such as Figure 2 As shown, in this embodiment, at least one connecting hole 14 is provided between two adjacent annular sealing grooves 123, and the sealant flows into multiple annular sealing grooves 123 in sequence after passing through the injection hole 13.

[0070] Specifically, such as Figure 2 As shown, in this embodiment, three connecting holes 14 are provided between two adjacent annular sealing grooves 123, and the three connecting holes 14 are evenly spaced along the circumference of the body 10.

[0071] Specifically, such as Figure 2 As shown, in this embodiment, the connecting holes 14 between the first annular sealing groove and the second annular sealing groove, the connecting holes 14 between the second annular sealing groove and the third annular sealing groove, and the connecting holes 14 between the third annular sealing groove and the fourth annular sealing groove are coaxially arranged with each other.

[0072] The other structures in Example 2 are the same as those in Example 1, and will not be described again here.

[0073] Example 3

[0074] Example 3 differs from Example 1 in the following ways:

[0075] Specifically, such as Figure 3 As shown, in this embodiment, the sealing groove 12 is a spiral groove 124. The spiral groove 124 has a starting end and a ending end. The starting end is close to the end of the body 10 that exposes the encoder cover 200, and the ending end is close to the other end of the body 10. The starting end is connected to the injection hole 13.

[0076] Specifically, in this embodiment, the depth d3 of the spiral groove 124 is in the range of 2mm≤d3≤3mm.

[0077] Specifically, in this embodiment, the range of the helix angle β2 of the helix groove 124 is: 55°≤β2≤60°.

[0078] Specifically, in this embodiment, the groove width b2 of the spiral groove 124 is in the range of b2 = 0.15D, where D is the outer diameter of the body 10.

[0079] The other structures in Example 3 are the same as those in Example 1, and will not be described again here.

[0080] Example 4

[0081] like Figure 4 As shown, the present invention also provides a servo motor, which includes a rear end cover 400, an encoder cover 200, an encoder 500, the aforementioned cable connector 100 (which may be any one of the above embodiments one to three) and an encoder cable 300.

[0082] The encoder cover 200 is mounted on the rear cover 400, the encoder 500 is mounted on the rear cover 400, the encoder 500 is located inside the encoder cover 200, the cable outlet connector 100 is located inside the cable outlet hole 201 of the encoder cover 200, one end of the encoder cable 300 passes through the cable outlet connector 100 and exits the encoder cover 200, and the other end is electrically connected to the encoder 500.

[0083] Specifically, such as Figure 4As shown, in this embodiment, the servo motor also includes a housing 600 and a rotating assembly. The end of the housing 600 is fixedly connected to the rear end cover 400, and the rotating assembly is disposed inside the housing 600, with one end of it rotatably connected to the encoder 500.

[0084] Specifically, such as Figure 4 As shown, in this embodiment, the rotating component includes a motor shaft 701, one end of which extends into the encoder 500 and is rotatably connected to it.

[0085] It should be noted that the cable outlet connector 100 in this invention has the following characteristics:

[0086] 1. Solved the problem of the junction box height, optimized the motor structure, and further miniaturized the motor;

[0087] 2. Improve the waterproof performance of the motor;

[0088] 3. Reduce motor costs.

[0089] As can be seen from the effects described in the above specific embodiments, the cable outlet connector is located inside the cable outlet hole of the encoder cover, thus completely concealing the connector within the hole. In other words, the cable outlet connector is embedded within the encoder cover, preventing any increase in the height of the motor tail end and avoiding the problem of increased motor tail end height caused by the cable outlet structure in existing technologies. This design saves space when the motor is installed on the equipment, making the overall design of the equipment more compact and smaller, thus meeting the miniaturization requirements of the equipment. Furthermore, in this invention, only the cable outlet connector is needed to achieve a sealed connection between the encoder cable and the encoder cover. This eliminates the need for a separate motor encoder cable outlet box and waterproof connector, as required by existing technologies, which rely on a combination of two parts to achieve a sealed connection between the encoder cable and the encoder cover. This simplifies the sealing connection structure of the encoder cable and the encoder cover, thereby reducing the manufacturing cost of the servo motor.

[0090] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0091] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0092] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0093] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

[0094] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cable outlet connector, characterized in that, The cable outlet connector is disposed inside the cable outlet hole of the component to be connected, and includes: The main body has a wire hole, and the main body is disposed in the wire outlet hole; and A sealing element is disposed between the body and the outlet hole, the sealing element being used to seal the gap between the body and the outlet hole; The wire inside the component to be connected passes through the wire hole of the main body, and the wire is sealed to the wire hole. The outer diameter of the body is larger than the inner diameter of the outlet hole, and the body and the outlet hole are interference-fitted. A sealing groove is provided on the outer periphery of the body, and the sealing element is disposed in the sealing groove to seal the gap between the body and the outlet hole. The body has an injection hole at one end exposed to the part to be connected. The injection hole is connected to the sealing groove. A sealing gap is defined between the inner wall of the outlet hole, the outer peripheral wall of the body, and the sealing groove. The injection hole can inject sealant into the sealing gap. After the sealant solidifies, it forms a sealant layer, which is the sealing element. The sealing groove includes multiple annular sealing grooves, which are spaced apart along the central axis of the body. At least one connecting hole is provided between two adjacent annular sealing grooves, and the sealant flows into the multiple annular sealing grooves through the connecting hole after passing through the injection hole.

2. The cable outlet connector according to claim 1, characterized in that, The body is an elastic telescopic component, and the body is made of rubber or synthetic resin material.

3. The cable outlet connector according to claim 1, characterized in that, The depth d4 of the annular sealing groove is in the range of 2mm≤d4≤3mm, and / or the groove width b3 of the annular sealing groove is in the range of 2.5mm≤b3≤3.5mm.

4. A servo motor, characterized in that, include: Rear end cover; as well as An encoder cover is disposed on the rear end cover; as well as An encoder is disposed on the rear end cover, and the encoder is located inside the encoder cover; as well as The cable outlet connector according to any one of claims 1 to 3, wherein the component to be connected is the encoder cover, and the cable outlet connector is disposed within the cable outlet hole of the encoder cover; and The output cable has one end passing through the output connector and exiting the encoder cover, and the other end being electrically connected to the encoder.

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