Lifting drive device and server

Abstract

The utility model discloses a kind of lifting drive device and server, for solving the technical problem of insufficient torque of current small size lifting drive device. The utility model includes shell, motor, transmission screw and multistage transmission assembly;Among them, the motor and the multistage transmission assembly are all installed in the inside of the shell, the transmission screw is rotatably connected in the shell and the transmission screw is exposed to the shell, the motor is connected with the transmission screw by the multistage transmission assembly to drive the transmission screw to rotate around its axis, and the transmission screw is threadedly connected with lifting connecting piece.

Description

Technical Field

[0001] This utility model relates to the field of lifting drive device design technology, and in particular to a lifting drive device. Background Technology

[0002] Traditional server chassis cooling structures typically use mesh-like perforated heat sinks. This structure easily leads to dust accumulation inside the chassis, and even the entry of impurities, affecting normal operation. With the rapid development of the AI ​​industry, chassis cooling structures have been replaced by electrically operated lifting fin cooling systems. When the chassis reaches a certain temperature, a lifting drive mechanism opens the cooling fins to ventilate the chassis, thus achieving automatic cooling.

[0003] Due to the limited internal space of servers, the existing lifting drive devices used to drive the movement of heat sink blades are generally designed to be small. Although this design can avoid taking up too much internal space of the server, it often suffers from insufficient torque. When such a small lifting drive device has insufficient torque, it will cause unstable lifting and lowering, and in severe cases, it may even overheat and burn out.

[0004] Therefore, finding a technical solution that can solve the above-mentioned technical problems has become an important research topic for those skilled in the art. Utility Model Content

[0005] This utility model discloses a lifting drive device and server to solve the technical problem of insufficient torque in current small-sized lifting drive devices.

[0006] The present invention provides a lifting drive device, including a housing, a motor, a transmission screw, and a multi-stage transmission assembly;

[0007] The motor and the multi-stage transmission assembly are both installed inside the housing. The transmission screw is rotatably connected to the housing and exposed outside the housing. The motor is connected to the transmission screw through the multi-stage transmission assembly to drive the transmission screw to rotate around its axis. A lifting connector is threaded onto the transmission screw.

[0008] Optionally, the multi-stage transmission assembly includes a second-stage gear set, a third-stage gear set, a fourth-stage gear set, and an output gear rotatably connected within the housing;

[0009] The motor is connected to the secondary gear set, and the secondary gear set, the tertiary gear set, the quaternary gear set, and the output gear mesh in sequence. The output gear is connected to the transmission screw.

[0010] Optionally, the output shaft of the motor is connected to a worm gear;

[0011] The secondary gear set includes a first helical gear and a second gear arranged coaxially.

[0012] The worm gear meshes with the first helical gear, and the second gear meshes with the third-stage gear set.

[0013] Optionally, the diameter of the first helical gear is larger than the diameter of the second gear.

[0014] Optionally, the three-stage gear set includes a third gear and a fourth gear arranged coaxially;

[0015] The third gear meshes with the second gear, and the fourth gear meshes with the four-stage gear set.

[0016] Optionally, the diameter of the third gear is larger than the diameter of the fourth gear.

[0017] Optionally, the four-stage gear set includes a fifth gear and a sixth gear arranged coaxially;

[0018] The fifth gear meshes with the fourth gear, and the sixth gear meshes with the output gear.

[0019] Optionally, the diameter of the sixth gear is smaller than the diameter of the fifth gear.

[0020] Optionally, a control circuit board is also installed inside the housing;

[0021] The motor is electrically connected to the control circuit board;

[0022] The lifting drive device also includes a potentiometer;

[0023] One of the terminals of the potentiometer is electrically connected to the control circuit board;

[0024] The other connection terminal of the potentiometer is connected to the lead screw.

[0025] The present invention provides a server, including a chassis and the aforementioned lifting drive device;

[0026] The chassis is provided with a heat dissipation window, and the heat dissipation window is movably equipped with heat dissipation blades. The lifting drive device is installed inside the chassis and connected to the heat dissipation blades. The lifting drive device is used to drive the heat dissipation blades to move relative to the chassis to open the heat dissipation window.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] In the lifting drive device of this embodiment, the motor is connected to the transmission screw through a multi-stage transmission assembly, thereby driving the transmission screw to rotate around its own axis, and in turn driving the lifting connecting part to rise and fall along the transmission screw. Through the above design, the motor and the multi-stage transmission assembly can achieve the effect of low-speed torque amplification, so that the lifting drive device has sufficient torque to drive the target part to rise and fall, ensuring the lifting stability of the target part. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the lifting connector in the lifting drive device of this utility model in the rising state;

[0031] Figure 2 A schematic diagram of the structure of the lifting connector in the lowering state of a lifting drive device provided by this utility model;

[0032] Figure 3 A diagram showing the coordination relationship between the motor, multi-stage transmission components, and transmission screw in a lifting drive device provided by this utility model;

[0033] Figure 4 A schematic diagram of the structure of a multi-stage transmission assembly in a lifting drive device provided by this utility model;

[0034] Figure 5 A schematic diagram showing the positions of the potentiometer and control circuit board in a lifting drive device provided by this utility model;

[0035] Diagram description: 1. Housing; 2. Lead screw; 3. Lifting connector; 4. Motor; 5. Worm gear; 6. Secondary gear set; 601 first helical gear; 602 second gear; 7. Tertiary gear set; 701 third gear; 702 fourth gear; 8. Quadruple gear set; 801 fifth gear; 802 sixth gear; 9. Output gear; 10. Control circuit board; 11. Potentiometer. Detailed Implementation

[0036] This utility model discloses a lifting drive device and server, which is used to solve the technical problem of insufficient torque in current small-sized lifting drive devices.

[0037] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figures 1 to 4 The present invention provides a lifting drive device, which includes a housing 1, a motor 4, a transmission screw 2, and a multi-stage transmission assembly.

[0039] The motor 4 and the multi-stage transmission assembly are both installed inside the housing 1. The transmission screw 2 is rotatably connected to the housing 1 and is exposed outside the housing 1. The motor 4 is connected to the transmission screw 2 through the multi-stage transmission assembly to drive the transmission screw 2 to rotate around its axis. The transmission screw 2 is threaded with a lifting connector 3.

[0040] In the lifting drive device of this embodiment, the motor 4 is connected to the transmission screw 2 through a multi-stage transmission assembly, thereby driving the transmission screw 2 to rotate around its own axis, and in turn driving the lifting connecting piece 3 to rise and fall along the transmission screw 2. Through the above design, the motor 4 and the multi-stage transmission assembly can achieve the effect of low-speed torque amplification, so that the lifting drive device has sufficient torque to drive the target part to rise and fall, ensuring the lifting stability of the target part.

[0041] Furthermore, the multi-stage transmission assembly in this embodiment specifically adopts a four-stage transmission method, which specifically includes a second-stage gear set 6, a third-stage gear set 7, a fourth-stage gear set 8, and an output gear 9 rotatably connected within the housing 1;

[0042] The motor 4 is connected to the secondary gear set 6. The secondary gear set 6, the tertiary gear set 7, the quaternary gear set 8, and the output gear 9 mesh in sequence. The output gear 9 is connected to the transmission screw 2.

[0043] It should be noted that, through the above design, after the motor 4 starts, it drives the second-stage gear set 6 to rotate, which in turn drives the third-stage gear set 7 and the fourth-stage gear set 8 to rotate. Finally, the fourth-stage gear set 8 drives the output gear 9 and the transmission screw 2 to rotate. The above four-stage transmission design can effectively achieve the purpose of increasing torque at low speeds.

[0044] Furthermore, in this embodiment, the output shaft of the motor 4 is connected to a worm gear 5;

[0045] The secondary gear set 6 includes a first helical gear 601 and a second gear 602 arranged coaxially.

[0046] The worm 5 meshes with the first helical gear 601, and the second gear 602 meshes with the third-stage gear set 7.

[0047] It should be noted that, through the above design, when the motor 4 drives the worm 5, the worm 5 drives the first helical gear 601 to rotate. Since the worm 5 and the second gear 602 are coaxially arranged, when the first helical gear 601 is driven to rotate, the second gear 602 rotates synchronously, thereby driving the three-stage gear set 7 to rotate synchronously.

[0048] In the above structure, in order to achieve the effect of increasing torque at low speed, the diameter of the first helical gear 601 is larger than the diameter of the second gear 602.

[0049] Furthermore, the three-stage gear set 7 in this embodiment includes a third gear 701 and a fourth gear 702 arranged coaxially;

[0050] The third gear 701 meshes with the second gear 602, and the fourth gear 702 meshes with the four-stage gear set 8.

[0051] It should be noted that, through the above design, the second gear 602 meshes with the third gear 701. When the second gear 602 is driven to rotate, the third gear 701 rotates synchronously. Since the third gear 701 and the fourth gear 702 are coaxially arranged, when the third gear 701 rotates, the fourth gear 702 rotates synchronously, thereby driving the four-stage gear set 8 to achieve synchronous rotation.

[0052] In the above structure, in order to achieve the effect of increasing torque at low speeds, the diameter of the third gear 701 is larger than the diameter of the fourth gear 702;

[0053] Furthermore, the four-stage gear set 8 in this embodiment includes a fifth gear 801 and a sixth gear 802 arranged coaxially;

[0054] The fifth gear 801 meshes with the fourth gear 702, and the sixth gear 802 meshes with the output gear 9.

[0055] It should be noted that, through the above design, the fourth gear 702 meshes with the fifth gear 801. When the fourth gear 702 is driven to rotate, the fifth gear 801 rotates synchronously. Since the fifth gear 801 and the sixth gear 802 are coaxially arranged, when the fifth gear 801 rotates, the sixth gear 802 rotates synchronously, thereby driving the output gear 9 to achieve synchronous rotation.

[0056] In the above structure, in order to achieve the effect of low-speed torque increase, the diameter of the sixth gear 802 is smaller than the diameter of the fifth gear 801. In addition, the diameter of the output gear 9 is larger than the diameter of the sixth gear 802.

[0057] Furthermore, in this embodiment, a control circuit board 10 is also installed inside the housing 1;

[0058] The motor 4 is electrically connected to the control circuit board 10;

[0059] Specifically, the motor 4 is electrically connected to the control circuit board 10 in an inclined horizontal mounting manner, thereby further reducing the size of the lifting drive device.

[0060] The lifting drive device also includes a potentiometer 11;

[0061] One of the terminals of the potentiometer 11 is electrically connected to the control circuit board 10;

[0062] The other connection terminal of the potentiometer 11 is connected to the lead screw 2.

[0063] It should be noted that in this embodiment, by electrically connecting a potentiometer 11 to the control circuit board 10, the lifting connector 3 is able to stop at three different positions, thereby achieving accurate position control of the lifting connector 3. Preferably, in this embodiment, the total stroke of the transmission lead screw is 12mm, rotating 6 revolutions, and the potentiometer 11 enables the motor 4 to have a multi-turn positioning function.

[0064] In addition, it should be noted that the control circuit board 10 mentioned above is prior art. Those skilled in the art will understand that the control circuit board 10 has a control chip, which will not be described in detail in this embodiment.

[0065] Please see Figures 1 to 4 The present invention provides a server including a chassis and the above-mentioned lifting drive device;

[0066] The chassis is provided with a heat dissipation window, and the heat dissipation window is movably equipped with heat dissipation blades. The lifting drive device is installed inside the chassis and connected to the heat dissipation blades. The lifting drive device is used to drive the heat dissipation blades to move relative to the chassis to open the heat dissipation window.

[0067] Furthermore, in this embodiment, the lifting connector 3 of the lifting drive device is fixedly connected to the heat dissipation blades.

[0068] It should be noted that, through the above design, the lifting drive device in this embodiment integrates the motor 4 and the multi-stage transmission components into the housing 1. This not only meets the requirement of compact installation space inside the server chassis, but also achieves the technical effect of low-speed torque increase, making the lifting of the heat dissipation blades more stable and smooth.

[0069] In addition, in this embodiment, by electrically connecting a potentiometer 11 to the control circuit board 10, the heat dissipation blades are positioned in three different locations: closed, half-open, and fully open, thereby enabling the server to have three different heat dissipation modes.

[0070] The above provides a detailed description of the lifting drive device and server provided by this utility model. For those skilled in the art, based on the ideas of the embodiments of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A lifting drive device, characterized in that, It includes a housing (1), a motor (4), a lead screw (2), and a multi-stage transmission assembly; The motor (4) and the multi-stage transmission assembly are both installed inside the housing (1). The transmission screw (2) is rotatably connected to the housing (1) and exposed outside the housing (1). The motor (4) is connected to the transmission screw (2) through the multi-stage transmission assembly to drive the transmission screw (2) to rotate around its axis. The transmission screw (2) is threaded with a lifting connector (3).

2. The lifting drive device according to claim 1, characterized in that, The multi-stage transmission assembly includes a second-stage gear set (6), a third-stage gear set (7), a fourth-stage gear set (8), and an output gear (9) rotatably connected within the housing (1). The motor (4) is connected to the secondary gear set (6), and the secondary gear set (6), the tertiary gear set (7), the quaternary gear set (8) and the output gear (9) mesh in sequence. The output gear (9) is connected to the transmission screw (2).

3. The lifting drive device according to claim 2, characterized in that, The output shaft of the motor (4) is connected to a worm gear (5); The secondary gear set (6) includes a first helical gear (601) and a second gear (602) arranged coaxially. The worm (5) meshes with the first helical gear (601), and the second gear (602) meshes with the third-stage gear set (7).

4. The lifting drive device according to claim 3, characterized in that, The diameter of the first helical gear (601) is larger than the diameter of the second gear (602).

5. The lifting drive device according to claim 4, characterized in that, The three-stage gear set (7) includes a third gear (701) and a fourth gear (702) arranged coaxially. The third gear (701) meshes with the second gear (602), and the fourth gear (702) meshes with the four-stage gear set (8).

6. The lifting drive device according to claim 5, characterized in that, The diameter of the third gear (701) is larger than the diameter of the fourth gear (702).

7. The lifting drive device according to claim 6, characterized in that, The four-stage gear set (8) includes a fifth gear (801) and a sixth gear (802) arranged coaxially. The fifth gear (801) meshes with the fourth gear (702), and the sixth gear (802) meshes with the output gear (9).

8. The lifting drive device according to claim 7, characterized in that, The diameter of the sixth gear (802) is smaller than the diameter of the fifth gear (801).

9. The lifting drive device according to claim 1, characterized in that, A control circuit board (10) is also installed inside the housing (1); The motor (4) is electrically connected to the control circuit board (10). The lifting drive device also includes a potentiometer (11). One of the terminals of the potentiometer (11) is electrically connected to the control circuit board (10); The other connection end of the potentiometer (11) is connected to the lead screw (2).

10. A server, characterized in that, Includes a chassis and a lifting drive device as described in any one of claims 1 to 9; The chassis is provided with a heat dissipation window, and the heat dissipation window is movably equipped with heat dissipation blades. The lifting drive device is installed inside the chassis and connected to the heat dissipation blades. The lifting drive device is used to drive the heat dissipation blades to move relative to the chassis to open the heat dissipation window.

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