Vehicle body accessory opening and closing system driver

Abstract

The utility model discloses a driver for a vehicle body accessory opening and closing system. The driver comprises a motor driving part and a driving part, the supporting pipe assembly is arranged at one end of the motor driving part; the lead screw is arranged in the supporting pipe assembly and can be driven by the motor driving part to rotate; the lead screw is sleeved with the transmission sleeve assembly, and one end of the transmission sleeve assembly is in threaded connection with the lead screw; when the lead screw rotates, the transmission sleeve assembly stably stretches out and draws back relative to the supporting pipe assembly under the supporting and guiding effects of the supporting pipe assembly. The inner side of the high-strength metal supporting sleeve is used for supporting and guiding the metal transmission sleeve, an external guiding supporting structure, namely a metal spring and a spring sleeve, is allowed to be omitted, lateral force is improved, and meanwhile the requirement for the installation space of the transmission sleeve end of the driver is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vehicle body accessory opening and closing system driver, in particular to a vehicle body accessory opening and closing system driver capable of reducing the installation space required for the transmission sleeve end. BACKGROUND

[0002] Various industries are developing towards electronic and intelligent direction. In the automobile industry, more and more vehicle models use electric drive for vehicle body accessory opening and closing system, such as electric tailgate system, electric trunk system, electric side door system, electric sliding door system, electric luggage compartment door system of commercial vehicle, etc. to meet the needs of different consumers today.

[0003] The existing electric drive vehicle body accessory opening and closing system driver on the market mainly has the following shortcomings:

[0004] (1) The existing vehicle body accessory opening and closing system driver has large diameter and occupies large space, especially the transmission sleeve end, which cannot be assembled in some narrow space applications.

[0005] (2) The existing vehicle body accessory opening and closing system driver has low lateral strength, and the actuator with too long total length and large stroke is easy to bend or even damage under the action of large lateral force.

[0006] The information disclosed in this background section is intended only to increase an understanding of the general background of the present utility model and should not be construed as an acknowledgment or any form of suggestion that this information constitutes prior art with respect to the present utility model. CONTENT OF THE UTILITY MODEL

[0007] The utility model solves the technical problem of the prior art and provides a vehicle body accessory opening and closing system driver, which improves the lateral force and reduces the installation space requirement of the transmission sleeve end of the driver.

[0008] In order to solve the above technical problem, the utility model discloses a vehicle body accessory opening and closing system driver, which comprises:

[0009] A motor driving part;

[0010] A support pipe assembly arranged at one end of the motor driving part;

[0011] A lead screw arranged in the support pipe assembly and capable of rotating under the driving of the motor driving part;

[0012] And a transmission sleeve assembly sleeved on the lead screw and threadedly connected with the lead screw at one end;

[0013] When the screw rod rotates, the transmission sleeve assembly stably extends and retracts relative to the support tube assembly under the support and guidance of the support tube assembly.

[0014] Specifically, the ratio of the outer diameter of the motor driving part to the support tube assembly is 1.2-2.0, preferably 1.5.

[0015] Specifically, the transmission sleeve assembly comprises:

[0016] A screw rod nut is sleeved on the screw rod, can slide along the screw rod and is limited in the circumferential direction;

[0017] and a metal transmission sleeve is sleeved outside the screw rod and connected with the screw rod nut.

[0018] The support tube assembly comprises:

[0019] a metal support sleeve configured to guide the sliding of the screw rod nut;

[0020] and a guide structure for guiding the metal transmission sleeve, which is arranged inside the end of the metal support sleeve away from the motor driving part.

[0021] When the screw rod rotates, the screw rod drives the metal transmission sleeve to stably extend and retract relative to the metal support sleeve, thereby realizing the stable extension and retraction of the transmission sleeve assembly relative to the motor driving part.

[0022] Specifically, the metal support sleeve is in sliding fit with the outer circumferential wall of the screw rod nut.

[0023] Specifically, the screw rod nut and the guide structure are respectively made of plastic material, wherein the screw rod nut is plastic-coated at the end of the metal transmission sleeve close to the motor driving part, and the guide structure is plastic-coated at the end of the metal support sleeve away from the motor driving part.

[0024] Specifically, one or more first plastic-coated anti-rotation holes are formed at one end of the metal transmission sleeve close to the motor driving part, and one or more second plastic-coated anti-rotation holes are formed at the end of the metal support sleeve away from the motor driving part; when plastic-coated, the screw rod nut forms a first anchoring part embedded in the first plastic-coated anti-rotation hole, and the guide structure forms a second anchoring part embedded in the second plastic-coated anti-rotation hole.

[0025] Further, the driver further comprises a screw rod guide assembly which is slidably arranged in the metal transmission sleeve, and the screw rod extends into the metal transmission sleeve and is fixedly connected with the screw rod guide assembly.

[0026] Specifically, the motor driving part comprises:

[0027] a metal motor sleeve, which is directly or indirectly connected with or integrally formed with the metal supporting sleeve;

[0028] and a motor driving device, which is positioned in the metal motor sleeve;

[0029] the lead screw is arranged in the metal supporting sleeve and connected with the motor driving device;

[0030] the motor driving device comprises a motor, a speed reducer and a transmission connecting assembly, the speed reducer is connected with the output end of the motor and the input end of the transmission connecting assembly, and the output end of the transmission connecting assembly is connected with the lead screw.

[0031] Further, the driver further comprises a riveting fixing member, which is plastic-coated outside the end of the metal supporting sleeve extending into the metal motor sleeve and connected with the metal motor sleeve through a riveting positioning structure, so as to indirectly connect the metal motor sleeve with the supporting sleeve assembly.

[0032] the riveting positioning structure comprises a first pressing groove formed on the outer circumferential wall of the riveting fixing member and a riveting protrusion formed on the inner wall of the metal supporting sleeve and clamped into the first pressing groove during riveting.

[0033] Further, the end of the metal supporting sleeve extending into the metal motor sleeve is further provided with one or more than one third plastic-coated anti-rotation hole; during plastic coating, the riveting fixing member is formed with a third anchoring part embedded in the third plastic-coated anti-rotation hole.

[0034] Beneficial effects:

[0035] 1. The utility model discloses a supporting tube assembly with high strength is used for supporting and guiding the metal transmission sleeve, cancels the guiding and supporting structure of the metal spring and spring sleeve outside the transmission sleeve in the related technology, effectively reduces the diameter of the end part of the transmission sleeve, reduces the installation space requirement of the transmission sleeve end of the driver, and can be installed in a narrow space.

[0036] 2、In the support pipe assembly of the utility model, the metal support sleeve is made of high-strength metal material, and the high-strength plastic parts, namely the guide structure and the riveting fixing part, are wrapped on both ends of the metal support sleeve, the structure can significantly improve the tolerance of the lateral force of the driver; in addition, the plastic structure, namely the guide structure, wrapped on the metal support sleeve has a guiding effect on the metal transmission sleeve in the transmission sleeve assembly, and cooperates with the guiding effect of the metal support sleeve on the screw nut in the transmission sleeve assembly, so that the transmission sleeve assembly can stably extend and retract relative to the support pipe assembly, that is, the driver runs more smoothly, meanwhile, the guide structure and the screw nut are made of high-strength plastic, which can reduce the noise in the running process of the driver. BRIEF DESCRIPTION OF DRAWINGS

[0037] The above and / or other aspects of the utility model will become more apparent by the following description in connection with the accompanying drawings and specific embodiments.

[0038] Figure 1 The utility model provides the appearance solid structure schematic diagram of car body accessory opening and closing system driver;

[0039] Figure 2 For Figure 1 The main sectional view of the car body accessory opening and closing system driver shown in the figure;

[0040] Figure 3 The main sectional view of the support pipe assembly provided by the utility model;

[0041] Figure 4 The appearance solid structure schematic diagram of metal support sleeve provided by the utility model;

[0042] Figure 5 The main sectional view of the transmission sleeve assembly provided by the utility model;

[0043] Figure 6 The appearance solid structure schematic diagram of metal transmission sleeve provided by the utility model.

[0044] The reference signs are explained as follows: 1, first ball joint; 2, outer sleeve; 3, metal motor sleeve; 4, motor; 5, reduction box; 6, transmission connecting assembly; 7, screw rod; 8, support tube assembly; 8-1, riveting fixing part; 8-11, first pressing groove; 8-12, third anchoring part; 8-2, metal support sleeve; 8-21, second plastic-coated anti-rotation hole; 8-22, third plastic-coated anti-rotation hole; 8-3, guide structure; 8-31, second anchoring part; 9, screw rod guide assembly; 10, transmission sleeve assembly; 10-1, screw rod nut; 10-11, first anchoring part; 10-2, metal transmission sleeve; 10-21, first plastic-coated anti-rotation hole; 11, second ball joint; 12, first plastic-coated anti-rotation hole; 13, second plastic-coated anti-rotation hole. DETAILED DESCRIPTION

[0045] In the related art, a metal spring and a spring sleeve are arranged outside the spring support tube at the transmission end of the driver of the vehicle body accessory opening and closing system. In order to avoid the collision between the spring support tube and the metal spring and the generation of abnormal sound, the spring support tube is usually made of plastic material, so that the strength of the spring support tube is insufficient to support. Therefore, the spring sleeve and the outermost metal sleeve of the driver are slidably connected, so as to provide support force for the extension and contraction of the spring sleeve, but also make the outer diameter of the transmission end large, the required installation space large, and the use scene limited.

[0046] As shown in Figures 1 to 6 , the vehicle body accessory opening and closing system driver provided by the utility model comprises: a motor driving part; a support tube assembly 8 arranged at one end of the motor driving part; a screw rod 7 arranged in the support tube assembly 8 and capable of rotating under the driving of the motor driving part; and a transmission sleeve assembly 10 sleeved on the screw rod 7 and threadedly connected with the screw rod 7 at one end. When the screw rod 7 rotates, the transmission sleeve assembly 10 stably extends and contracts relative to the support tube assembly 8 under the support and guide of the support tube assembly 8. Figure 1 and Figure 2 , the left end of the transmission sleeve assembly 10 is located in the support tube assembly 8 and can slide in the support tube assembly 8.

[0047] The utility model supports and guides the metal transmission sleeve by using the support tube assembly, allows the spring and the spring sleeve outside the transmission sleeve in the related art to be cancelled, improves the lateral force, and also reduces the installation space requirement of the transmission sleeve end of the driver.

[0048] The contribution of the original spring to the retention of the opening and closing system can be realized in various ways, for example, the use of a high-performance motor to improve the driving force of the driver to replace the spring effect in the traditional driver. This means belongs to the prior art, therefore, is not described in this application.

[0049] Preferably, the ratio of the outer diameter of the support tube assembly 8 to the motor driving part is 1.2-2.0, preferably 1.5.

[0050] Specifically, referring to Figure 2 , the transmission sleeve assembly 10 comprises a screw nut 10-1 and a metal transmission sleeve 10-2, the screw nut 10-1 is sleeved on the lead screw 7, and the screw nut 10-1 can slide along the lead screw 7 and is limited in the circumferential direction. The metal transmission sleeve 10-2 is sleeved outside the lead screw 7 and connected with the screw nut 10-1.

[0051] In order to realize the support and guidance of the transmission sleeve assembly 10 to make the driver run more smoothly, referring to Figure 2 and Figure 3 , the support tube assembly 8 comprises a metal support sleeve 8-2 and a guide structure 8-3. The metal support sleeve 8-2 is configured to guide the sliding of the screw nut 10-1. The guide structure 8-3 is arranged inside the end of the metal support sleeve 8-2 away from the motor driving part, and is configured to guide the metal transmission sleeve 10-2.

[0052] When the lead screw 7 rotates, the lead screw 7 drives the metal transmission sleeve 10-2 to stably extend and retract relative to the metal support sleeve 8-2, thereby realizing the stable extension and retraction of the transmission sleeve assembly 10 relative to the motor driving part.

[0053] It should be understood that, as Figure 2 shown, the outer wall of the metal transmission sleeve 10-2 is arranged in a gap with the inner part of the metal support sleeve 8-2 to reduce the resistance when the two relatively move.

[0054] In this application, the metal transmission sleeve 10-2 and the metal support sleeve 8-2 are both made of high-strength metal materials, such as 45# steel or 6061-T8 aluminum profile.

[0055] More specifically, the metal support sleeve 8-2 is in sliding fit with the outer circumferential wall of the screw nut 10-1.

[0056] More specifically, in order to reduce the noise when the metal transmission sleeve 10-2 and the metal support sleeve 8-2 relatively slide, the screw nut 10-1 and the guide structure 8-3 are respectively made of high-strength wear-resistant plastic materials, such as POM500, POM100 or PTFE, preferably POM500, which has the characteristics of high strength, wear resistance and self-lubrication. Referring to Figure 5 , the screw nut 10-1 is plastic-coated on the end of the metal transmission sleeve 10-2 close to the motor driving part, and the guide structure 8-3 is plastic-coated on the end of the metal support sleeve 8-2 away from the motor driving part.

[0057] Further, in order to avoid rotation of the screw nut 10-1 and the guide structure 8-3 and achieve stable and reliable connection between the injection molding part and the metal part, referring to Figure 4 and Figure 6 , the metal transmission sleeve 10-2 is provided with one or more first plastic-encased anti-rotation holes 10-21 at the end close to the motor driving part. The metal support sleeve 8-2 is provided with one or more second plastic-encased anti-rotation holes 8-21 at the end away from the motor driving part. When plastic-encased, the screw nut 10-1 is formed with a first anchoring part 10-11 embedded in the first plastic-encased anti-rotation hole 10-21, and the guide structure 8-3 is formed with a second anchoring part 8-31 embedded in the second plastic-encased anti-rotation hole 8-21.

[0058] Further, referring to Figure 2 , in order to reduce the amount of shaking of the driver and make the driver run more smoothly, the driver further comprises a screw guide assembly 9 slidingly arranged in the metal transmission sleeve 10-2, and the screw 7 extends into the metal transmission sleeve 10-2 and is fixedly connected with the screw guide assembly 9.

[0059] The screw guide assembly 9 of the embodiment can adopt existing guide structures, such as the guide block structure for a vehicle body accessory opening and closing system driver provided in a Chinese patent with publication date CN217129256U.

[0060] Specifically, referring to Figure 2 , the motor driving part can include a metal motor sleeve 3 and a motor driving device. The metal motor sleeve 3 is directly or indirectly connected or integrally formed with the metal support sleeve 8-2. The motor driving device is positioned in the metal motor sleeve 3.

[0061] In the embodiment, the screw 7 is arranged in the metal support sleeve 8-2 and connected with the motor driving device, so as to realize that the screw 7 is arranged in the support sleeve assembly 8 and can rotate under the driving of the motor driving device of the motor driving part.

[0062] In an example, referring to Figure 2 , the driver further comprises a riveting fixing member 8-1 which is plastic-encased outside the end of the metal support sleeve 8-2 extending into the metal motor sleeve 3 and connected with the metal motor sleeve 3 through a riveting positioning structure, so as to indirectly connect the metal motor sleeve 3 and the metal support sleeve 8-2.

[0063] More specifically, referring to Figure 3 , the riveting positioning structure includes a first pressing groove 8-11 provided on the outer circumferential side wall of the riveting fixing member 8-1 and a riveting protrusion formed on the inner side wall of the metal support sleeve 8-2 and clamped into the first pressing groove 8-11 when riveting.

[0064] Further, in order to avoid the rivet fixing part 8-1 from rotating and ensure that the rivet fixing part 8-1 is connected with the metal support sleeve 8-2 stably and reliably, referring to Figure 4 , the end of the metal support sleeve 8-2 extending into the metal motor sleeve 3 is also provided with one or more than one third plastic-coated anti-rotation hole 8-22. When plastic-coated, the rivet fixing part 8-1 is formed with a third anchoring part 8-12 embedded in the third plastic-coated anti-rotation hole 8-22.

[0065] Specifically, the motor driving device can include a motor 4, a reduction box 5 and a transmission connecting part assembly 6, the reduction box 5 connecting the output end of the motor 4 and the input end of the transmission connecting part assembly 6, and the output end of the transmission connecting part assembly 6 being connected with the lead screw 7.

[0066] Further, referring to Figure 2 , in order to prevent dust, the driver further includes an outer sleeve 2 for dust prevention, the outer sleeve 2 being sleeved on the metal motor sleeve 3.

[0067] Further, referring to Figure 1 , the driver further includes a first ball joint 1 and a second ball joint 11, the first ball joint 1 being connected to the end of the metal motor sleeve 3 away from the metal support sleeve 8-2, and the second ball joint 11 being connected to the end of the metal transmission sleeve 10-2 located outside the metal support sleeve 8-2.

[0068] More specifically, referring to Figure 2 , the first ball joint 1 and the second ball joint 11 are respectively provided with a second pressing groove, the end of the metal motor sleeve 3 away from the metal support sleeve 8-2 is rivet-fixed with the first ball joint 1 and the riveting point is in the second pressing groove of the first ball joint 1; and the end of the metal transmission sleeve 10-2 located outside the metal support sleeve 8-2 is rivet-fixed with the second ball joint 11 and the riveting point is in the second pressing groove of the second ball joint 11.

[0069] It should be understood that the stroke of the driver can be determined by the lead screw.

[0070] The assembly process of the driver of the utility model will be described in detail below. As known from the foregoing, the assembly composed of the metal support sleeve 8-2, and the rivet fixing part 8-1 and the guide structure 8-3 plastic-coated on both ends of the metal support sleeve 8-2 is called a support pipe assembly 8; and the assembly composed of the metal transmission sleeve 10-2 and the lead screw nut 10-1 plastic-coated on the metal transmission sleeve 10-2 is called a transmission sleeve assembly 10.

[0071] When assembling, the first ball joint 1, the motor 4, the reduction box 5, the transmission connecting piece assembly 6, the lead screw 7, the lead screw guide assembly 9, the transmission sleeve assembly 10 and the support pipe assembly 8 are sequentially assembled, and then are integrally assembled into the metal motor sleeve 3, and finally the metal motor sleeve 3 is press riveted at both ends, and the press riveting points are in the second press grooves of the riveting positioning structures 8-1 in the first ball joint 1 and the support pipe assembly 8, so that the various parts in the metal motor sleeve 3 are fixed. The lead screw nut 10-1 in the transmission sleeve assembly 10 is threadedly connected with the lead screw 7, and the end of the metal transmission sleeve 10-2 of the transmission sleeve assembly 10 is press riveted and fixed with the second press groove of the second ball joint 11.

[0072] The working principle of the driver of the utility model will be described below.

[0073] When the driver of the utility model is installed in the corresponding vehicle body accessory, the motor 4 is powered on, the lead screw 7 is driven to rotate by the motor 4 and the reduction box 5, the lead screw 7 and the lead screw nut 10-1 in the transmission sleeve assembly 10 produce relative movement, thereby driving the transmission sleeve assembly 10 and the second ball joint 11 to reciprocate, and the opening and closing of the vehicle body accessory are realized. When the motor is powered off, due to the friction of the internal system of the driver, the driver can stop at any position and keep the length at the time of power off, so that the vehicle body accessory is in a hovering state. The source of the internal system friction of the driver can be the motor, the reduction box 5, or the damping structure provided by the Chinese patent CN220268302U for the vehicle body accessory opening and closing system driver.

[0074] The two ends of the metal support sleeve 8-2 are respectively provided with first plastic-coated anti-rotation holes, the riveting fixing part 8-1 and the guide structure 8-3 are made of plastic material and are respectively plastic-coated at the two ends of the metal support sleeve 8-2, the first plastic-coated anti-rotation holes at the two ends of the metal support sleeve 8-2 play an anti-rotation role on the riveting fixing part 8-1 and the guide structure 8-3, so that the connection between the plastic-coated part structure and the metal pipe is more stable and reliable, and the plastic-coated strength is also higher; the guide structure 8-3 and the lead screw guide assembly 9 have a guiding effect on the metal transmission sleeve 10-2, which can make the driver run more smoothly.

[0075] For the support pipe assembly 8, the metal support sleeve 8-2 in the support pipe assembly 8 is made of high-strength metal, and the riveting fixing part 8-1 and the guide structure 8-3 are made of high-strength wear-resistant plastic material, which can significantly improve the lateral force of the driver.

[0076] The metal transmission sleeve 10-2 in the transmission sleeve assembly 10 is provided with a second plastic-coated anti-rotation hole; the screw nut 10-1 is made of plastic and is plastic-coated at one end of the metal transmission sleeve 10-2; the second plastic-coated anti-rotation hole of the metal transmission sleeve 10-2 has an anti-rotation effect on the screw nut 10-1, so that the connection between the plastic-coated part structure and the metal pipe is more stable and reliable, and the plastic-coated strength is also higher; the outer circular surface of the screw nut 10-1 cooperates with the inner circular surface of the metal supporting sleeve 8-2, and also has a guiding effect on the metal transmission sleeve 10-2, so that the driver can run more smoothly.

[0077] The vehicle body accessory opening and closing system driver cancels the spring and the outer transmission sleeve in the traditional driver, effectively reduces the diameter of the transmission sleeve part, so that the transmission sleeve can be installed in a narrow space.

[0078] The utility model provides a kind of vehicle body accessory opening and closing system driver's thought and method, the method and approach of specifically realizing this technical scheme are many, above-mentioned is only preferred implementation mode of the utility model, it should be pointed out, for the ordinary skilled in the art, under the premise of not departing from the principle of the utility model, still can make several improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.The components not explicitly in the embodiment can be realized by prior art.

Claims

1. A driver for a vehicle body accessory opening and closing system, characterized in that, include: Motor drive section; A support tube assembly (8) is disposed at one end of the motor drive section; The lead screw (7) is disposed within the support tube assembly (8) and is capable of rotating under the drive of the motor drive part; And a transmission sleeve assembly (10), which is sleeved on the lead screw (7) and one end is threaded to the lead screw (7); When the lead screw (7) rotates, the transmission sleeve assembly (10) extends and retracts smoothly relative to the support tube assembly (8) under the support and guidance of the support tube assembly (8); The transmission sleeve assembly (10) includes: A lead screw nut (10-1) is sleeved on the lead screw (7), and can slide along the lead screw (7) and is set at an upper limit in the circumferential direction; And a metal transmission sleeve (10-2), which is sleeved on the outside of the lead screw (7) and connected to the lead screw nut (10-1); The support tube assembly (8) includes: A metal support sleeve (8-2) is configured to guide the sliding of the lead screw nut (10-1); And a guide structure (8-3) for guiding the metal transmission sleeve (10-2), the guide structure (8-3) being disposed on the inner side of the end of the metal support sleeve (8-2) away from the motor drive part; When the lead screw (7) rotates, the lead screw (7) drives the metal transmission sleeve (10-2) to extend and retract smoothly relative to the metal support sleeve (8-2), thereby realizing the smooth extension and retraction of the transmission sleeve assembly (10) relative to the motor drive part. The lead screw nut (10-1) and the guide structure (8-3) are both made of plastic. The lead screw nut (10-1) is plastic-coated at the end of the metal transmission sleeve (10-2) near the motor drive part; the guide structure (8-3) is plastic-coated at the end of the metal support sleeve (8-2) away from the motor drive part. The metal transmission sleeve (10-2) near the end of the motor drive part is provided with one or more first plastic-coated anti-rotation holes (10-21), and the metal support sleeve (8-2) away from the end of the motor drive part is provided with one or more second plastic-coated anti-rotation holes (8-21); when plastic-coated, the lead screw nut (10-1) forms a first anchoring part (10-11) that is embedded in the first plastic-coated anti-rotation hole (10-21), and the guide structure (8-3) forms a second anchoring part (8-31) that is embedded in the second plastic-coated anti-rotation hole (8-21).

2. The vehicle body accessory opening and closing system driver according to claim 1, characterized in that, The ratio of the outer diameter of the motor drive part to that of the support tube assembly (8) is 1.2-2.

0.

3. The vehicle body accessory opening and closing system driver according to claim 2, characterized in that, The ratio of the outer diameter of the motor drive part to that of the support tube assembly (8) is 1.

5.

4. The vehicle body accessory opening and closing system driver according to claim 1 or 2, characterized in that, The metal support sleeve (8-2) slides in contact with the outer peripheral sidewall of the lead screw nut (10-1).

5. The vehicle body accessory opening and closing system driver according to claim 4, characterized in that, It also includes a lead screw guide assembly (9), which is slidably disposed inside the metal transmission sleeve (10-2), and the lead screw (7) extends into the metal transmission sleeve (10-2) and is fixedly connected to the lead screw guide assembly (9).

6. The vehicle body accessory opening and closing system driver according to claim 1, characterized in that, The motor drive section includes: Metal motor sleeve (3), the metal motor sleeve (3) is directly or indirectly connected to the metal support sleeve (8-2) or integrally formed; And a motor drive device, positioned inside the metal motor sleeve (3); The lead screw (7) is disposed inside the metal support sleeve (8-2) and connected to the motor drive device; The motor drive device includes a motor (4), a gearbox (5) and a transmission connector assembly (6). The gearbox (5) is connected to the output end of the motor (4) and the input end of the transmission connector assembly (6). The output end of the transmission connector assembly (6) is connected to the lead screw (7).

7. The vehicle body accessory opening and closing system driver according to claim 6, characterized in that, It also includes a riveting fastener (8-1), which is plastically encapsulated on the outside of one end of the metal support sleeve (8-2) that extends into the metal motor sleeve (3) and is connected to the metal motor sleeve (3) through a riveting positioning structure, thereby realizing the indirect connection between the metal motor sleeve (3) and the support tube assembly (8). The riveting positioning structure includes a first pressure groove (8-11) formed on the outer peripheral sidewall of the riveting fastener (8-1) and a riveting protrusion formed on the inner sidewall of the metal support sleeve (8-2) and inserted into the first pressure groove (8-11) during riveting.

8. The vehicle body accessory opening and closing system driver according to claim 7, characterized in that, One or more third plastic-coated anti-rotation holes (8-22) are also provided at one end of the metal support sleeve (8-2) that extends into the metal motor sleeve (3); when plastic-coated, the riveting fastener (8-1) forms a third anchoring part (8-12) that is embedded in the third plastic-coated anti-rotation hole (8-22).

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