Automatic tracking engineering test vehicle driven by temperature difference

Abstract

The utility model discloses an automatic tracking engineering test vehicle driven by temperature difference, which particularly relates to the technical field of new energy power devices and comprises a supporting mechanism, the supporting mechanism comprises a vehicle body supporting plate, a driving shaft and a universal driving shaft, the driving shaft and the universal driving shaft are rotatably connected above the vehicle body supporting plate, and driving wheels are mounted at two ends of the driving shaft. And a driving motor and a capacitor module are mounted above and below the vehicle body supporting plate respectively. An off-grid power supply system is constructed through the thermoelectric power generation mechanism and the capacitor module (including the super capacitor bank and the voltage stabilization module), an independent energy chain is formed in combination with biomass combustion heat recovery, continuous energy supply of a single alcohol stove is achieved, and the device is suitable for power-free laboratories or emergency equipment; meanwhile, a pure mechanical system of a detachable cam, a transmission mechanism and a steering mechanism is adopted, automatic path tracking, electromagnetic interference resistance and no extra energy consumption are achieved by replacing a special-shaped cam contour line, precise control and low energy consumption are both considered, and a new energy power system is constructed.

Description

Technical Field

[0001] This utility model belongs to the field of new energy power device technology, specifically relating to a self-driven temperature difference vehicle based on the thermoelectric conversion principle. Background Technology

[0002] Temperature gradient actuation is a mechanism that utilizes temperature differences to generate energy conversion or drive a physical process. Its core principle is based on the Seebeck effect or thermal diffusion phenomenon in thermodynamics. When a temperature difference exists between two different materials or different parts of the same material, heat is transferred from the higher-temperature end to the lower-temperature end, possibly accompanied by charge migration (such as thermoelectric conversion in the Seebeck effect) or fluid flow (such as thermal convection). This temperature gradient can be directly converted into electrical energy (thermoelectric power generation), drive fluid circulation (such as ocean thermohaline circulation or natural circulation in solar water heaters), or generate mechanical motion through differences in material expansion (such as thermal bimetallic strips). Temperature gradient actuation is commonly used in engineering test vehicles.

[0003] The application of existing temperature difference driven technology in engineering mobile equipment still faces significant technical bottlenecks, specifically in the following aspects:

[0004] First, inefficient thermal energy conversion and additional energy consumption: the traditional flat-plate thermopile structure has a thermal absorption efficiency decay rate of more than 40% at the low temperature end (<80℃), and relies on an external forced cooling system to maintain the temperature difference, resulting in additional energy consumption accounting for up to 20%, which significantly reduces the overall energy output efficiency.

[0005] Secondly, the mechanical properties of the materials are insufficient: the mainstream Bi2Te3-based thermoelectric materials are brittle and have low bending strength (<50MPa). Under moving conditions, they are prone to microcracks due to vibration, resulting in a power attenuation rate of more than 30%, which seriously affects the life of the device.

[0006] Finally, the start-up threshold and transmission loss limitations: the system requires an ambient temperature difference of ≥25℃ to start, and the friction loss of mechanical transmission components accounts for more than 22%, which limits the energy density of the miniaturized equipment to <3W / cm². 3 It is difficult to meet the high reliability requirements of engineering test vehicles.

[0007] Therefore, traditional temperature difference drive systems rely heavily on external energy sources for power supply and lack an independent and sustainable energy chain; steering control mechanisms often use electromagnetic or hydraulic solutions, which have problems such as weak anti-interference ability and high energy consumption. Utility Model Content

[0008] The purpose of this invention is to provide a temperature difference driven automatic tracking engineering test vehicle to solve the problems of the lack of an independent and sustainable energy chain in the existing technology and the high energy consumption of the steering control mechanism.

[0009] To solve the above-mentioned technical problems, the basic technical solution proposed by this utility model is as follows:

[0010] A temperature-differential driven automatic tracking engineering test vehicle includes a support mechanism. The support mechanism includes a support body plate and a drive shaft and a linkage shaft rotatably connected above the support body plate. Drive wheels are installed at both ends of the drive shaft. A drive motor and a capacitor module are respectively installed above and below the support body plate. A temperature difference power generation mechanism and a transmission mechanism are arranged above the drive motor. A steering mechanism is arranged on one side of the support body plate, and a fine-tuning mechanism is arranged on one side of the steering mechanism. The temperature difference power generation mechanism includes an alcohol furnace, a copper-based heat conduction module, a semiconductor temperature difference plate, and a heat dissipation tower arranged sequentially from bottom to top. The transmission mechanism includes a gear 1 and a transmission gear 1 fixedly connected to the periphery of the drive shaft, and a gear 3 fixedly connected to one end of the linkage shaft. A special-shaped cam is fixedly connected to the other end of the linkage shaft. The fine-tuning mechanism includes a guide rail slide mounted above the support body plate and a slider slidably connected above the guide rail slide. A linkage seat and a mounting frame are installed above the slider. A push rod is rotatably connected to the inner side of the mounting frame, and a return spring is hung on one side of the linkage seat.

[0011] Preferably, the semiconductor thermocouples are uniformly arrayed and installed above the copper-based heat conduction module, and the bottom of the heat dissipation tower is attached to the semiconductor thermocouples.

[0012] Preferably, the output end of the drive motor is meshed with a gear one, a gear two is meshed with one side of the transmission gear one, a transmission gear two is fixedly connected to one side of the gear two via a shaft, the transmission gear two is meshed with one side of the gear three, and both the gear two and the transmission gear two are rotatably connected above the supporting vehicle body plate.

[0013] Preferably, the linkage seat and the mounting frame are an integral structure, and a contact pad is installed on the top of the linkage seat, the contact pad being close to the steering arm.

[0014] Preferably, the other end of the reset spring is hung above the connecting seat, and the connecting seat is fixedly connected to the upper part of the supporting vehicle body plate.

[0015] Preferably, the steering mechanism includes a mounting base and a steering shaft, with a steering arm fixedly connected to the periphery of the steering shaft.

[0016] Preferably, a steering wheel is rotatably connected to the bottom of the mounting base, and a trapezoidal arm is fixedly connected to the periphery of the steering shaft, with a micrometer head installed on one side of the trapezoidal arm.

[0017] The beneficial effects of this utility model are:

[0018] I. This utility model, through the setting of a thermoelectric power generation mechanism and a capacitor module, with the supercapacitor group and voltage stabilization module in the capacitor module working together with the thermoelectric power generation mechanism to form an off-grid power supply system, realizes continuous power supply for a single alcohol furnace fuel, and is particularly suitable for the autonomous power supply of laboratory equipment or emergency monitoring devices without power supply. It integrates biomass combustion heat recovery and thermoelectric power generation module to form an independent and sustainable energy chain.

[0019] II. This utility model, through the combination of a specially designed cam, a drive motor, a transmission mechanism, a steering mechanism, and a fine-tuning mechanism, constitutes a detachable pure mechanical transmission system. By replacing different specially designed cams, the profile of the specially designed cam can be changed to achieve autonomous tracking of a preset path. It is resistant to electromagnetic interference and has no additional energy consumption, thereby constructing a new energy power system without external power supply. Moreover, the fully mechanical steering mechanism maintains precise control even in unstable environments, thereby reducing energy consumption and improving stability. Attached Figure Description

[0020] Figure 1 This is a perspective view of the entire embodiment of the present utility model;

[0021] Figure 2 This is a perspective view of the overall bottom of Embodiment 1 of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall internal structure of Embodiment 1 of this utility model;

[0023] Figure 4 This is a schematic diagram of the temperature difference mechanism according to Embodiment 1 of this utility model;

[0024] Figure 5 This is a schematic diagram of the support mechanism and transmission mechanism of Embodiment 1 of this utility model;

[0025] Figure 6 This is a schematic diagram of the steering mechanism according to Embodiment 1 of this utility model;

[0026] Figure 7 This is a schematic diagram of the fine-tuning mechanism in Embodiment 1 of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Support mechanism; 11. Support body plate; 12. Drive shaft; 13. Linkage shaft; 14. Drive wheel; 15. Irregular cam; 16. Connecting seat; 2. Housing; 3. Capacitor module;

[0029] 4. Thermoelectric generator; 41. Copper-based heat transfer module; 42. Semiconductor thermoelectric plate; 43. Heat sink; 44. Alcohol furnace;

[0030] 5. Drive motor;

[0031] 6. Transmission mechanism; 61. Gear 1; 62. Transmission gear 1; 63. Gear 2; 64. Transmission gear 2; 65. Gear 3;

[0032] 7. Steering mechanism; 71. Mounting base; 72. Steering wheel; 73. Steering shaft; 74. Steering arm; 75. Trapezoidal arm; 8. Microcontroller head;

[0033] 9. Fine-tuning mechanism; 91. Guide rail slide; 92. Slider; 93. Linkage seat; 94. Mounting frame; 95. Push rod; 96. Return spring; 97. Contact pad. Detailed Implementation

[0034] Please refer to the following. Figures 1 to 7 As shown, the technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0035] It should be noted that, in the embodiments of this utility model, the directions shown in the accompanying drawings shall prevail, such as front and back. Figure 1 For the sake of accuracy, the specific details should be as follows: Figure 1 The left side is the front. Figure 1 The right side is the rear; at the same time, as Figure 2 As shown, the horizontal direction is roughly defined as left and right, and the vertical direction is defined as up and down. If a specific orientation changes, the directional indication will also change accordingly.

[0036] This utility model provides a temperature difference driven automatic tracking engineering test vehicle, including a support mechanism 1. The support mechanism 1 includes a support vehicle body plate 11 and a drive shaft 12 and a linkage shaft 13 rotatably connected above the support vehicle body plate 11. Drive wheels 14 are installed at both ends of the drive shaft 12. A drive motor 5 and a capacitor module 3 are installed on the upper and lower parts of the support vehicle body plate 11, respectively. A temperature difference power generation mechanism 4 and a transmission mechanism 6 are arranged above the drive motor 5. A steering mechanism 7 is arranged on one side of the support vehicle body plate 11, and a fine adjustment mechanism 9 is arranged on one side of the steering mechanism 7.

[0037] The thermoelectric power generation mechanism 4 includes an alcohol furnace 44, a copper-based heat conduction module 41, a semiconductor thermoelectric plate 42, and a heat dissipation tower 43 arranged sequentially from bottom to top;

[0038] The transmission mechanism 6 includes a gear 61 and a transmission gear 62 fixedly connected to the periphery of the drive shaft 12, and a gear 65 fixedly connected to one end of the linkage shaft 13. A special-shaped cam 15 is fixedly connected to the other end of the linkage shaft 13.

[0039] The fine-tuning mechanism 9 includes a guide rail slide 91 mounted on the support body plate 11 and a slider 92 slidably connected above the guide rail slide 91. A linkage seat 93 and a mounting frame 94 are mounted above the slider 92. A push rod 95 is rotatably connected to the inner side of the mounting frame 94. A return spring 96 is hung on one side of the linkage seat 93.

[0040] The capacitor module 3 includes a supercapacitor bank and a voltage regulator module, and an identification board is also installed on one side of it, which can identify UID tags on the ground for engineering testing. The support mechanism 1 is equipped with a housing 2, which is used to protect the internal devices. A switch and an indicator light are installed on the top of the housing 2. The switch is used to turn the vehicle on and off, while the indicator light is used to remind the tester that the engineering vehicle is running and to provide a prompt when the identification board identifies the UID tag.

[0041] In a further embodiment, a uniform array of semiconductor thermocouples 42 is mounted above the copper-based heat conduction module 41, and the bottom of the heat sink 43 is attached to the semiconductor thermocouples 42.

[0042] In this embodiment, the copper-based heat conduction module 41 and the alcohol furnace 44 are both mounted on a bracket, which is fixedly connected to the upper part of the supporting vehicle body plate 11; the semiconductor thermoelectric plate 42 is connected to the capacitor module 3 through a circuit; the heat dissipation tower 43 and the copper-based heat conduction module 41 are used to dissipate heat and heat the upper and lower surfaces of the semiconductor thermoelectric plate 42, thereby allowing the semiconductor thermoelectric plate 42 to generate Seebeck thermoelectric effect and thus generate electrical energy; the alcohol furnace 44 contains liquid alcohol, and the flame can heat the copper-based heat conduction module 41 after ignition.

[0043] In a further embodiment, the output end of the drive motor 5 is meshed with gear 61, one side of the transmission gear 62 is meshed with gear 63, one side of gear 63 is fixedly connected with transmission gear 64 via a shaft, and transmission gear 64 is meshed with one side of gear 65. Both gear 63 and transmission gear 64 are rotatably connected above the supporting vehicle body plate 11.

[0044] In this embodiment, bearing seats are installed at both ends of the support body plate 11, between the second gear 63 and the second transmission gear 64, and at both ends of the linkage shaft 13, so that the drive shaft 12, the linkage shaft 13 and the transmission mechanism 6 can be rotatably connected.

[0045] In a further embodiment, the linkage seat 93 and the mounting frame 94 are an integral structure, and a contact pad 97 is installed on the top of the linkage seat 93, with the contact pad 97 close to the steering arm 74.

[0046] In this embodiment, when the irregular cam 15 rotates, its asymmetrical profile forces the push rod to produce a periodic reciprocating motion along the axial direction, as follows:

[0047] Lifting stage: At the highest point of the shaped cam 15, the push rod 95 is pushed outward linearly, and the steering arm 74 is rotated through the contact pad 97;

[0048] Return phase: The low point of the irregular cam 15, in conjunction with the return spring 96, causes the linkage seat 93, mounting frame 94 and push rod 95 to retract, completing the steering reset.

[0049] In a further embodiment, the other end of the return spring 96 is hung above the connecting seat 16, which is fixedly connected to the upper part of the supporting vehicle body plate 11.

[0050] In this embodiment, the connecting seat 16 and the bearing seat supporting the linkage shaft 13 are integrated, which is used to constantly pull the linkage seat 93, the mounting frame 94 and the push rod 95 closer to the irregular cam 15, so that the push rod 95 always fits the outer edge of the irregular cam 15.

[0051] In a further embodiment, the steering mechanism 7 includes a mounting base 71 and a steering shaft 73, with a steering arm 74 fixedly connected to the periphery of the steering shaft 73.

[0052] In this embodiment, the steering mechanism 7 is the steering head of the engineering vehicle; there is a leverage ratio between the steering arm 74 and the steering shaft 73, which can expand the displacement of the linkage seat 93, the mounting frame 94 and the push rod 95, thereby increasing the wheel deflection angle of the mounting seat 71, the steering wheel 72 and the steering shaft 73.

[0053] In a further embodiment, a steering wheel 72 is rotatably connected to the bottom of the mounting base 71, and a trapezoidal arm 75 is fixedly connected to the periphery of the steering shaft 73. A micrometer head 8 is installed on one side of the trapezoidal arm 75.

[0054] In this embodiment, the micrometer head 8 is a micrometer head micrometer in the prior art. The initial steering angle of the front wheel can be finely adjusted by adjusting the micrometer head 8, thereby changing the motion trajectory.

[0055] The working principle of this utility model is as follows:

[0056] When the alcohol stove 44 is lit and the switch on the top of the outer casing 2 is turned on, the flame above the alcohol stove 44 heats the copper-based heat conduction module 41, which in turn heats the bottom of the semiconductor thermocouple 42. Combined with the continuous heat dissipation from the heat sink 43 above the semiconductor thermocouple 42, this generates a Seebeck thermoelectric effect, producing electrical energy. This energy is conducted through wires to the capacitor module 3, where the voltage regulator and capacitor module 3 stabilize the energy and supply it to the drive motor 5. The output of the drive motor 5 then sequentially passes through gear 1 61, transmission gear 1 62, gear 2 63, transmission gear 2 64, and gear 3 6. 5. The transmission ratio is increased so that the drive shaft 12 and the linkage shaft 13 drive the drive wheel 14 and the shaped cam 15 to rotate respectively. The rotation of the drive wheel 14 will drive the entire vehicle body to move, while the rotation of the shaped cam 15 will push the push rod 95 to slide back and forth. When the shaped cam 15 rotates and cooperates with the return spring 96, the asymmetrical contour of the shaped cam 15 forces the push rod 95 to generate periodic reciprocating motion along the guide rail slide 91, and pushes the steering arm 74 in sequence through the mounting frame 94, the linkage seat 93 and the contact pad 97, thereby causing the steering shaft 73 and the mounting seat 71 to turn. The leverage ratio of the steering arm 74 and the steering shaft 73 amplifies the small displacement distance of the push rod 95 into a significant wheel deflection angle.

[0057] The aforementioned thermoelectric generator 4, together with the supercapacitor group and voltage stabilizing module in the capacitor module 3, constitute an off-grid power supply system, enabling continuous power supply from a single alcohol furnace 44. It is particularly suitable for self-powering of laboratory equipment or emergency monitoring devices without power supply, and integrates biomass combustion heat recovery and thermoelectric generator modules to form an independent and sustainable energy chain.

[0058] In addition, the combination of the detachable irregular cam 15, drive motor 5, transmission mechanism 6, steering mechanism 7 and fine adjustment mechanism 9 constitutes a pure mechanical transmission system. By replacing different irregular cams 15, the profile of the irregular cam 15 can be changed to achieve autonomous tracking of the preset path. It is resistant to electromagnetic interference and has no additional energy consumption. Thus, a new energy power system without external power supply is constructed. Moreover, the fully mechanical steering mechanism still maintains precise control in unstable environments, thereby reducing energy consumption and improving stability.

[0059] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A thermoelectrically driven self-tracking engineering test vehicle comprising a support mechanism (1), characterized in that, The support mechanism (1) includes a support vehicle body plate (11), a driving shaft (12) and a linkage shaft (13) rotatably connected above the support vehicle body plate (11), both ends of the driving shaft (12) are provided with driving wheels (14), the support vehicle body plate (11) is provided with a driving motor (5) and a capacitor module (3) above and below respectively, the driving motor (5) is provided with a thermoelectric generation mechanism (4) and a transmission mechanism (6) above, one side of the support vehicle body plate (11) is provided with a steering mechanism (7), one side of the steering mechanism (7) is provided with a fine adjustment mechanism (9). The thermoelectric generation mechanism (4) includes an alcohol stove (44), a copper-based heat conduction module (41), a semiconductor thermoelectric sheet (42) and a heat dissipation tower (43) arranged in sequence from bottom to top. The transmission mechanism (6) includes a gear one (61) and a transmission gear one (62) fixedly connected on the periphery of the driving shaft (12) and a gear three (65) fixedly connected on one end of the linkage shaft (13), the other end of the linkage shaft (13) is fixedly connected with a special-shaped cam (15). The fine adjustment mechanism (9) includes a guide rail sliding seat (91) installed above the support vehicle body plate (11) and a sliding block (92) slidingly connected above the guide rail sliding seat (91), the sliding block (92) is provided with a linkage seat (93) and a mounting frame (94) above, the mounting frame (94) is rotatably connected with a push rod (95) on the inner side, one side of the linkage seat (93) is hung with a return spring (96).

2. The automatic tracking engineering test vehicle driven by temperature difference according to claim 1, characterized in that: The semiconductor thermoelectric sheet (42) is uniformly arrayed above the copper-based heat conduction module (41), and the bottom of the heat dissipation tower (43) is attached to the semiconductor thermoelectric sheet (42).

3. The automatic tracking engineering test vehicle driven by temperature difference according to claim 1, characterized in that: The output end of the driving motor (5) is engaged with the gear one (61), one side of the transmission gear one (62) is engaged with a gear two (63), one side of the gear two (63) is fixedly connected with a transmission gear two (64) through a shaft, the transmission gear two (64) is engaged with one side of the gear three (65), and the gear two (63) and the transmission gear two (64) are rotatably connected above the support vehicle body plate (11).

4. The automatic tracking engineering test vehicle driven by temperature difference according to claim 1, characterized in that: The linkage seat (93) and the mounting frame (94) are of an integral structure, a contact pad (97) is installed above the linkage seat (93), and the contact pad (97) is close to the steering arm (74).

5. The automatic tracking engineering test vehicle driven by temperature difference according to claim 1, characterized in that: The other end of the return spring (96) is hung above the adapter seat (16), and the adapter seat (16) is fixedly connected above the support vehicle body plate (11).

6. The automatic tracking engineering test vehicle driven by temperature difference according to claim 1, characterized in that: The steering mechanism (7) includes a mounting seat (71) and a steering shaft (73), and the steering shaft (73) is fixedly connected with a steering arm (74) on the periphery.

7. The automatic tracking engineering test vehicle driven by temperature difference according to claim 6, characterized in that: The bottom of the mounting seat (71) is rotatably connected with a steering wheel (72), and the periphery of the steering shaft (73) is further fixedly connected with a trapezoidal arm (75), and one side of the trapezoidal arm (75) is provided with a differential head (8).

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