Driving screw idling anti-locking, active-resetting and high-heat-conduction locking strip

Abstract

The invention discloses a high-heat-conduction locking strip capable of driving a screw to idle to prevent locking and actively reset. The high-heat-conduction locking strip comprises a strip-shaped rail assembly, a driving assembly and an ejection assembly. According to the locking strip, through the design of the thickened sliding rail bottom plate, the three-stage inclined plane linkage mechanism and the multiple heat conduction contact surfaces, the heat dissipation performance is remarkably improved, and the single-side equivalent heat resistance is reduced by 22.53% compared with a traditional product; the front end of the driving screw is provided with an optical axis section which can idle to prevent over-screwing after being unlocked in place, and the rear end is provided with a left-hand thread matched with the nut and the check ring to prevent separation; the spring washer provides resilience force, and active resetting under the bonding working condition is achieved. The electronic module is suitable for high-heat-density and high-vibration environments, and reliable installation and efficient heat dissipation of the electronic module are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of electronic device module installation, fixing, and thermal management technology, and in particular to a high thermal conductivity locking strip that prevents drive screws from jamming during free spin, actively resets, and provides automatic locking. Background Technology

[0002] Locking strips, as a crucial mechanical connection and fixing device, are widely used in the installation of electronic modules or circuit boards within chassis, especially in harsh environments with high vibration and high reliability requirements, such as airborne, automotive, and shipborne applications. Compared to traditional screw fixing methods, locking strips significantly simplify the installation and disassembly process, reduce spatial layout limitations, and improve the stability and ease of maintenance of module fixing. However, existing locking strip structures on the market still have several technical bottlenecks in practical applications, particularly in terms of thermal management and structural reliability. Due to the unavoidable assembly gaps between the components inside the locking strip and the limited effective contact area on the main heat transfer path, the overall thermal conductivity is poor, making it difficult to efficiently conduct the heat generated by the internal chips of the module to the external heat dissipation structure, thus limiting the upper limit of the thermal power consumption design of the electronic module. In addition, some active reset locking strips are prone to adhesion due to lubrication failure or fretting wear after long-term use, making unlocking difficult; and if the drive screw is excessively unscrewed during operation, it may completely detach from the structure, causing components to scatter or even malfunction. These problems not only affect the maintenance efficiency of the equipment, but also pose a potential threat to the long-term reliability of the system. Therefore, there is an urgent need for a new locking strip structure that combines high thermal conductivity, reliable active reset capability, and anti-jamming and anti-detachment mechanisms to overcome the shortcomings of existing technologies in terms of heat conduction efficiency, operational safety, and structural integrity. Summary of the Invention

[0003] This invention addresses the shortcomings of existing locking strips used for mounting electronic modules in high-heat-density, high-vibration applications, such as insufficient thermal conductivity, difficulty in unlocking, and easy dislodgement or jamming of the drive screw. It provides a locking strip with high structural integration, optimized heat transfer path, active reset capability, and the ability to prevent the drive screw from jamming or completely dislodging during free spin. This locking strip achieves reliable clamping, rapid release, efficient heat dissipation, and structural integrity protection of electronic modules through the synergistic design of a thickened slide rail base plate, a multi-slider inclined plane linkage mechanism, a drive screw limiting and free spin structure, and an additional thermally conductive contact surface.

[0004] This invention provides a locking strip with anti-jamming, active reset, and high thermal conductivity for driving screws, comprising a strip track assembly, a driving assembly, and an ejection assembly. The driving assembly is disposed at one end of the strip track assembly, and the ejection assembly is disposed on one side of the strip track assembly, with the driving end of the driving assembly connected to the ejection assembly, for converting rotational driving force into vertical ejection or retraction motion.

[0005] The strip track assembly includes a slide rail base plate and a rear slider positioning pin. The overall thickness of the slide rail base plate is greater than the standard thickness of 1.2 mm used in traditional locking strips. Its upper surface has a wedge-shaped structure extending along the length direction to form a sliding fit with the lower side of the slider in the ejection assembly. One end of the slide rail base plate has an M3 threaded hole for threaded engagement with the middle section of the drive screw in the drive assembly. The other end of the slide rail base plate is connected to the rear slider in the ejection assembly via the rear slider positioning pin to limit the maximum horizontal displacement range of the ejection assembly. The thickness design of the slide rail base plate allows for the machining of threaded through holes on the front or the back, thus supporting both front and back installation methods and providing a structural basis for optimizing the heat conduction path.

[0006] Furthermore, the ejection assembly includes a middle slider, a first ejection slider, a second ejection slider, a front slider, a rear slider, an ejection slider connecting pin, and an ejection slider groove. The lower sides of the middle slider, the first ejection slider, and the second ejection slider are all provided with wedge-shaped surfaces that match the wedge-shaped structure on the upper surface of the slide rail base plate. These three components form a sliding pair with the slide rail base plate through these wedge-shaped surfaces, allowing them to slide horizontally and generate vertical displacement under the constraint of the wedge-shaped surfaces. The front slider and the rear slider are located at opposite ends of the ejection assembly, and their inner end faces are provided with a "narrower at the top and wider at the bottom" inclined surface structure. The ends of the first and second ejection sliders are respectively provided with "wider at the top and narrower at the bottom" inclined surface structures that complement the inclined surfaces of the front and rear sliders, allowing mechanical linkage to be formed between the front slider and the first ejection slider, and between the rear slider and the second ejection slider, through inclined surface contact. The ends of the middle slider are also provided with "wider at the top and narrower at the bottom" inclined surfaces, respectively contacting the inner inclined surfaces of the first and second ejection sliders, thus forming a three-stage inclined surface linkage mechanism.

[0007] Specifically, both ends of the first and second ejector sliders are provided with inclined ejector slider grooves, and the front slider, rear slider, and middle slider are provided with ejector slider connecting pins at corresponding positions. The ejector slider connecting pins pass through the ejector slider grooves to form a sliding pair connection. When the drive assembly drives the front slider to move horizontally along the slide rail base plate, the front slider pushes the first ejector slider upward through its inner inclined surface. The first ejector slider synchronously drives the second ejector slider upward through the middle slider. The second ejector slider then pushes the rear slider upward through its inclined surface, thereby realizing the synchronous ejection action of multiple sliders in the vertical direction and applying a uniform clamping force to the side wall of the electronic module. Conversely, when the drive assembly rotates in the opposite direction to retract the front slider, each slider retracts synchronously downward under the action of the inclined surface, completing the unlocking action.

[0008] Furthermore, the drive assembly includes a drive screw, a spring washer, a flat washer, a nut, and a nut retaining ring. The drive screw has a stepped shaft structure, with a Φ2.4 mm diameter smooth shaft section at the front end, an M3 right-hand thread in the middle section, and an M3.5 left-hand thread at the rear end. The M3 thread in the middle section of the drive screw mates with an M3 threaded hole at the end of the slide rail base plate to transmit locking force. The smooth shaft section at the front end of the drive screw passes through a through hole at the non-sloping end of the front slider, and the diameter of this through hole is slightly larger than Φ2.4 mm. The screw is designed to be fully unlocked, allowing the drive screw to rotate counterclockwise after the locking bar is fully unlocked and the front slider has moved to its limit position. Its optical axis can freely rotate within the through hole of the front slider without axial displacement, allowing the operator to clearly determine the unlocking status by hand, avoiding thread damage due to over-tightening. A nut and a nut retaining ring are sequentially installed on the M3.5 left-hand thread at the rear end of the drive screw. The nut is locked to the rear end of the drive screw via the left-hand thread, and the nut retaining ring is fitted outside the nut and abuts against the end of the slide rail base plate, jointly restricting the drive screw from completely disengaging axially. A flat washer and a spring washer are sequentially installed between the front end of the drive screw and the end face of the front slider. The spring washer provides pre-tightening force in the locked state, assists the front slider in retraction during unlocking, and provides initial separation force in adhesive conditions, achieving an active reset function.

[0009] The slide rail base plate, front slider, middle slider, and rear slider are all made of high thermal conductivity metal material. Their surfaces that directly contact the side wall of the electronic module form multiple contact pieces, which together form a multi-path parallel heat conduction channel. The thickened design of the slide rail base plate not only improves the structural rigidity but also increases the contact area with the cold plate or chassis base, reducing the interface thermal resistance. According to thermal resistance testing, under the same test conditions, the equivalent thermal resistance of the locking strip of this invention on one side is 0.8402 K / W, which is 22.53% lower than the 1.0846 K / W of the traditional 185 type locking strip, significantly improving the heat dissipation capacity.

[0010] Furthermore, when the ejector assembly is not in operation, each slider is in the retracted position, with its upper surface flush with or slightly lower than the upper surface of the slide rail base plate, ensuring smooth module insertion. When the drive screw rotates clockwise, the middle section of the M3 thread engages with the threaded hole of the slide rail base plate, pushing the front slider to move horizontally towards the rear slider. The horizontal displacement is converted into vertical ejection displacement through the inclined plane mechanism, causing each ejector slider to eject upwards and press against the side wall of the module. When the drive screw rotates counterclockwise until the front slider reaches the retraction limit position, the optical shaft section at the front end of the drive screw rotates freely in the through hole of the front slider. The operator can feel the resistance of rotation and know that it is fully unlocked. At this time, the elastic force of the spring washer pushes the front slider to remain in the retracted position. After the inclined plane self-locking is released, each slider can fully return to its original position by gravity or slight external force, achieving active reset without external force intervention.

[0011] Specifically, the rear slider positioning pin is fixed to one end of the slide rail base plate near the rear slider. It passes through the slide rail base plate and is inserted into the positioning hole at the bottom of the rear slider, limiting the maximum displacement of the rear slider in the horizontal direction and preventing the ejection assembly from shifting or leaving the track during the driving process. The inclination angle of the ejection slider groove is designed according to the required ejection force and stroke ratio to ensure sufficient vertical ejection height under limited horizontal displacement, meeting the adaptability requirements of different module installation gaps.

[0012] The beneficial effects of this invention are:

[0013] This invention achieves comprehensive performance improvement through the following specific technical means:

[0014] 1. A thickened slide rail base plate is adopted and multiple heat-conducting surfaces are set up to directly contact the module, thus constructing a low thermal resistance parallel heat transfer path;

[0015] 2. A three-stage inclined plane linkage mechanism is designed, consisting of a front slider, a rear slider, a middle slider, a first ejector slider, and a second ejector slider. The ejector slider is connected to the sliding pair of the inclined ejector slider groove by the connecting pin, which efficiently converts the rotational motion of the drive screw into vertical ejection / retraction motion.

[0016] 3. A Φ2.4 mm optical shaft section is set at the front end of the drive screw, so that it can rotate freely in the through hole of the front slider after being unlocked, providing clear operation feedback and preventing thread overload;

[0017] 4. An M3.5 left-hand thread is provided at the rear end of the drive screw, along with a nut and a nut retaining ring, to prevent the drive screw from completely disengaging and to maintain the structural integrity of the device.

[0018] 5. A spring washer and a flat washer are installed at the front end of the drive screw to provide rebound force during the unlocking process, overcome the adhesion force of the thermal grease, and achieve reliable active reset.

[0019] The technical solution of this invention describes in detail the geometric structure, material selection, connection relationship and motion conversion mechanism of each component, so that those skilled in the art can manufacture and use the locking strip based on the above content, and reproduce its high thermal conductivity, active reset, anti-jamming and anti-fall-off functions without creative labor. Attached Figure Description

[0020] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0022] Figure 3 This is a schematic diagram of the ejection state structure of the present invention;

[0023] Figure 4 yes Figure 3 Enlarged view of part B in the middle section;

[0024] Figure 5 This is a schematic diagram of the external structure of the present invention;

[0025] Figure 6 This is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 7 This is a three-dimensional structural diagram of the ejected state of the present invention;

[0027] Figure 8 This is a schematic diagram of the application state structure of the present invention;

[0028] Figure 9 yes Figure 8 Enlarged view of part C in the middle;

[0029] Figure 10 These are photographs of the experimental process of this invention.

[0030] The attached figures are labeled as follows:

[0031] 1. Slide rail base plate; 2. Middle slider; 3. First ejector slider; 4. Second ejector slider; 5. Front slider; 6. Rear slider; 7. Rear slider positioning pin; 8. Ejector slider connecting pin; 9. Ejector slider groove; 10. Drive screw; 11. Spring washer; 12. Flat washer; 13. Nut; 14. Nut retaining ring. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions herein are used to explain the present invention, but are not intended to limit the present invention.

[0033] like Figures 1 to 10As shown, the present invention provides a locking strip for preventing jamming of a drive screw during idle rotation, with active reset and high thermal conductivity. Its overall structure comprises three main parts: a strip track assembly, a drive assembly, and an ejection assembly. The strip track assembly mainly consists of a slide rail base plate 1 and a rear slider positioning pin 7. The drive assembly includes a drive screw 10, a spring washer 11, a flat washer 12, a nut 13, and a nut retaining ring 14. The ejection assembly consists of a middle slider 2, a first ejection slider 3, a second ejection slider 4, a front slider 5, a rear slider 6, an ejection slider connecting pin 8, and an ejection slider groove 9. These components work together precisely to achieve locking, unlocking, active reset, and efficient heat conduction functions.

[0034] In the specific assembly process, the slide rail base plate 1 is first processed into a thickened structure with a thickness greater than the traditional 1.2mm, preferably 2.5mm to 3.5mm, to improve overall rigidity and support installation on both sides. A wedge-shaped structure is set along the length of the upper surface of the slide rail base plate 1. This wedge-shaped structure is used to form a sliding pair with the complementary wedge-shaped surfaces on the lower sides of the intermediate slider 2, the first ejector slider 3, and the second ejector slider 4. One end of the slide rail base plate 1 has an M3 threaded hole for engaging with the M3 right-hand thread in the middle section of the drive screw 10; the other end is connected to the positioning hole at the bottom of the rear slider 6 through the rear slider positioning pin 7, limiting the maximum displacement range of the rear slider 6 in the horizontal direction and preventing the ejector assembly from shifting or detaching from the track.

[0035] The assembly sequence of the ejector assembly is as follows: First, place the middle slider 2 in the middle of the slide rail base plate 1, so that its lower wedge-shaped surface fits against the wedge-shaped structure on the upper surface of the slide rail base plate 1; then, place the first ejector slider 3 and the second ejector slider 4 on both sides of the middle slider 2, with wedge-shaped surfaces matching the slide rail base plate 1 on their lower sides, ensuring that all three can slide horizontally along the slide rail base plate 1; the front slider 5 and the rear slider 6 are placed outside the first ejector slider 3 and the second ejector slider 4, respectively, with their inner end faces machined into a "narrower at the top and wider at the bottom" sloping structure, while the two ends of the first ejector slider 3 and the second ejector slider 4 are machined into a "wider at the top and narrower at the bottom" sloping structure, so that the front slider 5 and the first ejector slider 3, and the rear slider 6 and the second ejector slider 4, form a mechanical linkage through sloping surface contact. The two ends of the middle slider 2 also have "wider at the top and narrower at the bottom" sloping surfaces, which contact the inner sloping surfaces of the first ejector slider 3 and the second ejector slider 4, respectively, forming a three-stage sloping surface linkage mechanism.

[0036] Furthermore, inclined ejection slider grooves 9 are respectively provided at both ends of the first ejection slider 3 and the second ejection slider 4. The inclination angle is designed according to the required ejection force to stroke ratio, usually 15° to 30°. Ejection slider connecting pins 8 are respectively provided at corresponding positions of the front slider 5, the rear slider 6 and the middle slider 2. The pins pass through the ejection slider grooves 9 to form a sliding pair connection. When the drive assembly drives the front slider 5 to move horizontally along the slide rail base plate 1, the front slider 5 pushes the first ejection slider 3 upward through its inner inclined surface. The first ejection slider 3 synchronously drives the second ejection slider 4 upward through the middle slider 2. The second ejection slider 4 then pushes the rear slider 6 upward through its inclined surface, thereby realizing the synchronous ejection action of multiple sliders in the vertical direction and applying a uniform clamping force to the side wall of the electronic module.

[0037] The assembly process of the drive assembly is as follows: The drive screw 10 is inserted through the through hole at the end of the front slider 5 without the bevel. The diameter of the through hole is slightly larger than Φ2.4 mm to accommodate the optical shaft section at the front end of the drive screw 10. The M3 thread in the middle section of the drive screw 10 is screwed into the M3 threaded hole at the end of the slide rail base plate 1. A flat washer 12 and a spring washer 11 are installed between the front end of the drive screw 10 and the end face of the front slider 5 in sequence to provide preload in the locked state and to assist the front slider 5 in retraction during the unlocking process. A nut 13 and a nut retainer 14 are installed on the left-hand thread of the rear end of the drive screw 10 in sequence. The nut 13 is locked to the rear end of the drive screw 10 by the left-hand thread, and the nut retainer 14 is sleeved on the outside of the nut 13 and abuts against the end of the slide rail base plate 1, together restricting the drive screw 10 from completely disengaging from the device along the axial direction.

[0038] In actual use, when it is necessary to lock the electronic module, the drive screw 10 is rotated clockwise. Its M3 thread engages with the threaded hole of the slide rail base plate 1, pushing the front slider 5 to move horizontally towards the rear slider 6. The front slider 5 pushes the first ejector slider 3 upward through its inner inclined surface. The first ejector slider 3 simultaneously drives the second ejector slider 4 upward through the middle slider 2. The second ejector slider 4 then pushes the rear slider 6 upward through its inclined surface, ultimately causing the upper surfaces of all ejector sliders to press against the side wall of the electronic module, completing the locking action. At this time, the slide rail base plate 1, the front slider 5, the middle slider 2, and the rear slider 6 are all in direct contact with the side wall of the module, forming a new contact surface 1, a new contact surface 2, a new contact surface 3, and the original contact surface 1. These four together constitute a multi-path parallel heat conduction channel, significantly reducing the equivalent thermal resistance.

[0039] When unlocking is required, the drive screw 10 is rotated counterclockwise, and the front slider 5 begins to retract under the elastic force of the spring washer 11. As the front slider 5 retracts, all sliders retract synchronously downwards under the action of the inclined plane, completing the unlocking action. After the locking bar is fully unlocked and the front slider 5 has moved to its limit position, the drive screw 10 is rotated counterclockwise again. Its front end Φ2.4 mm optical shaft section can freely rotate within the through hole of the front slider 5 without generating axial displacement. The operator can clearly judge the unlocking status by feel, avoiding thread damage due to over-tightening. At the same time, the limiting effect of the nut 13 and the nut retaining ring 14 prevents the drive screw 10 from completely disengaging, maintaining the structural integrity of the device.

[0040] In terms of thermal management, the slide rail base plate 1 is made of 6061-T6 aluminum alloy, which has excellent thermal conductivity. Testing showed that, under the same test conditions, the equivalent thermal resistance of the locking strip of this invention on one side is 0.8402 K / W, a 22.53% reduction compared to the 1.0846 K / W of the traditional 185-type locking strip. The test platform consists of a locking strip mounting module, a fixing base, and heating ceramic plates. Both the fixing base and the locking strip fixing block are made of 6061-T6 aluminum alloy. Thermally conductive silicone grease is injected into the thermocouple mounting hole to reduce measurement errors, and aerogel is applied to non-test surfaces to reduce heat loss. Test results show that this invention significantly improves heat dissipation capacity by increasing the contact area of ​​key thermally conductive surfaces and optimizing the heat transfer path.

[0041] Testing process:

[0042] The testing equipment is as follows:

[0043] Liquid cooling source: Liquid supply temperature range: 16L / min; Liquid cooling source cooling power: 2000W.

[0044] Temperature tester:

[0045] Tester model: Agilent 34972A; Display accuracy: 0.1℃

[0046] Thermal resistance of heating ceramic element:

[0047] Power supply voltage: DC24V; Maximum power: 100W / unit.

[0048] The test platform consists of three main parts: a locking strip mounting module, a fixed base, and heating ceramic plates. To obtain as much test data as possible during the construction of this test platform, two mounting slots were designed in the fixed base.

[0049] Material:

[0050] The fixed base and locking strip fixing block in the test platform are all made of 6061-T6 to ensure consistency with actual use.

[0051] The heat insulation pad is made of polytetrafluoroethylene (thermal conductivity is 0.30W / m·K). By increasing its thickness dimension (15mm) and reducing the contact area with the locking strip fixing block (total contact area 800mm²), the heat transferred through the heat insulation pad can be ensured to be negligible.

[0052] Temperature tester thermocouple installation:

[0053] Before inserting the thermocouple into the mounting hole, inject an appropriate amount of thermally conductive silicone grease into the hole, and then insert the temperature measuring thermocouple into the mounting hole. This can avoid measurement errors caused by poor contact between the thermocouple and the mounting hole.

[0054] Thermal insulation:

[0055] To minimize heat loss from the locking strip fixing block due to thermal radiation and convection in the atmospheric environment, aerogel or thermal insulation material is applied to the non-installation surfaces and non-test points of the locking strip fixing block, depending on the actual situation, to reduce the interference of the atmospheric environment on the measurement results.

[0056] Test method:

[0057] First, the liquid supply temperature of the liquid coolant is set to a constant value, and the liquid is supplied to the fixed base. Then, the ceramic thermal resistor is powered and the power is stabilized at a fixed value.

[0058] After the test platform has been running for a period of time, when the temperature results of the N temperature measurement points of the fixed base and the N temperature measurement points of the locking strip fixing block are observed to be stable, the relevant temperature data and heat consumption data are recorded.

[0059] The equivalent thermal resistance of the locking strip can be obtained by subtracting the average temperature measured on both sides of the fixed base and the locking strip fixing block, and then dividing the temperature difference ∆T by the heating power Q of the ceramic thermal resistance.

[0060] After the test is completed, the ceramic heat shield is first switched off, and the liquid cooling source continues to work. Only after the temperature difference between the two sides is stabilized can the next round of testing be carried out.

[0061] Test Results

[0062] The relevant test results are summarized in the table below:

[0063] Data summary results

[0064] Serial Number category Power (W) Average temperature at the cold plate end (°C) Average temperature at the module end (°C) Equivalent thermal resistance (K / W) 1 High thermal conductivity locking device single-sided thermal resistance test 89.55 94.4981 19.2528 0.8402 2 185 Locking Device Single-Sided Thermal Resistance Test 92.98 129.9895 29.1418 1.0846

[0065] In summary, this invention achieves the following: S1. By employing a thickened slide rail base plate 1 and providing multiple heat-conducting surfaces that directly contact the module, a low thermal resistance parallel heat transfer path is constructed; S2. A three-stage inclined plane linkage mechanism is designed, consisting of a front slider 5, a rear slider 6, a middle slider 2, a first ejector slider 3, and a second ejector slider 4. The sliding pair between the ejector slider connecting pin 8 and the inclined ejector slider groove 9 efficiently converts the rotational motion of the drive screw 10 into vertical ejection / retraction motion; S3. A Φ2.4... The mm optical axis segment allows it to rotate freely within the through hole of the front slider 5 after unlocking, providing clear operational feedback and preventing thread overload; S4, an M3.5 left-hand thread is provided at the rear end of the drive screw 10, which, together with the nut 13 and nut retaining ring 14, prevents the drive screw 10 from completely disengaging, maintaining the structural integrity of the device; S5, a spring washer 11 and a flat washer 12 are configured at the front end of the drive screw 10 to provide rebound force during unlocking, overcoming the adhesion force of the thermal grease and achieving reliable active reset. The above technical solutions enable the present invention to possess excellent locking reliability, heat dissipation performance, and ease of operation in high-vibration, high-heat-density application scenarios.

[0066] The technical solutions of the present invention are not limited to the specific embodiments described above. Any technical modifications made in accordance with the technical solutions of the present invention fall within the protection scope of the present invention.

Claims

1. A locking strip with anti-jamming function, active reset, and high thermal conductivity for driving screws, characterized in that: It includes a strip track assembly, a drive assembly, and an ejection assembly. The drive assembly is disposed at one end of the strip track assembly, and the ejection assembly is disposed on one side of the strip track assembly. The drive end of the drive assembly is connected to the ejection assembly.

2. The drive screw anti-jamming, active reset, and high thermal conductivity locking strip according to claim 1, characterized in that: The strip track assembly includes a slide rail base plate (1) and a rear slider positioning pin (7). A wedge structure is provided on one side of the slide rail base plate (1). The wedge structure of the slide rail base plate (1) is connected to the ejection assembly. One end of the slide rail base plate (1) is connected to one end of the ejection assembly through the rear slider positioning pin (7). The ejection assembly is slidably connected to the slide rail base plate (1). The other end of the slide rail base plate (1) is provided with the drive assembly.

3. The drive screw anti-jamming, active reset, and high thermal conductivity locking strip according to claim 2, characterized in that: The ejection assembly includes an ejection slider, a front slider (5), and a rear slider (6). The rear slider (6) is limited to one end of the slide rail base plate (1) by the rear slider positioning pin (7). The ejection slider is slidably connected to the middle section of the slide rail base plate (1). The front slider (5) is slidably connected to the other end of the slide rail base plate (1). Inclined surfaces are provided between both ends of the ejection slider and the front slider (5) and the rear slider (6). The front slider (5) and the rear slider (6) drive the ejection slider through the inclined surfaces. The drive assembly is provided between the other end of the front slider (5) and the slide rail base plate (1).

4. The drive screw anti-jamming, active reset, and high thermal conductivity locking strip according to claim 3, characterized in that: The ejector slider includes a middle slider (2), a first ejector slider (3), a second ejector slider (4), an ejector slider connecting pin (8), and an ejector slider groove (9). One side of the middle slider (2) is slidably connected to the slide rail base plate (1) through a wedge structure. The two ends of the slide rail base plate (1) are inclined structures that are narrower at the top and wider at the bottom. One side of the first ejector slider (3) and the second ejector slider (4) are slidably connected to the slide rail base plate (1) through a wedge structure. Both ends of the first ejector slider (3) and the second ejector slider (4) are inclined structures that are wider at the top and narrower at the bottom. One end of the first ejector slider (3) and the second ejector slider (4) respectively contacts the inclined surfaces of the two ends of the middle slider (2). One end of the rear slider (6) is provided with an inclined surface that is narrower at the top and wider at the bottom. One end of the front slider (5) is provided with an inclined surface that is narrower at the top and wider at the bottom. The second ejector slider (4) has a wide inclined surface. The other end of the second ejector slider (4) contacts the inclined surface of the rear slider (6). The other end of the first ejector slider (3) contacts the inclined end of the front slider (5). Both ends of the first ejector slider (3) and the second ejector slider (4) are provided with ejector slider grooves (9). The ejector slider grooves (9) are inclined structures. The inclined ends of the front slider (5) and the rear slider (6) are provided with ejector slider connecting pins (8). Both ends of the middle slider (2) are also provided with ejector slider connecting pins (8). The two ends of the middle slider (2), the front slider (5) and the rear slider (6) are provided with one end of the ejector slider connecting pins (8) and are respectively slidably connected to the ejector slider grooves (9) of the first ejector slider (3) and the second ejector slider (4) through the ejector slider connecting pins (8).

5. The drive screw anti-jamming, active reset, and high thermal conductivity locking strip according to claim 3, characterized in that: The drive assembly includes a drive screw (10), a spring washer (11), a flat washer (12), a nut (13), and a nut retainer (14). The end of the drive screw (10) is provided with an optical shaft, the middle section of the drive screw (10) is provided with a thread, the end of the slide rail base plate (1) is provided with a threaded hole, the middle section of the drive screw (10) can be threadedly connected to the slide rail base plate (1), the middle section of the drive screw (10) passes through the end of the front slider (5) without a slope, the end of the drive screw (10) and the end face of the front slider (5) are provided with a spring washer (11) and a flat washer (12), and the nut (13) and the nut retainer (14) are provided on the other side of the front slider (5) in the inner cavity of the front slider (5).

Images