Synchronous rectification power supply assembly structure

Abstract

The invention relates to the field of synchronous rectification power supplies, discloses a synchronous rectification power supply assembly structure, and aims to improve the reliability and flexibility of cooling liquid flowing by adopting a non-contact extrusion driving mode. The structure comprises a power supply body, a transformer, a mounting row plate, a cooling liquid temporary storage mechanism and other core components, cooling liquid circularly flows in a flow channel and is cooled through heat dissipation through holes, and therefore efficient heat dissipation is achieved; the extrusion mechanism drives the cooling liquid to flow under the condition that the extrusion mechanism is not in direct contact with the cooling liquid, so that the problem of cooling liquid pollution caused by a traditional pump body is avoided; a flexible and adjustable flow management scheme is established, the extrusion force is adjusted through a knob and a bidirectional screw, and it is ensured that the flow speed is optimized according to the temperature change of the power source body. And due to the specific design of the cooling liquid temporary storage mechanism and the sealing plug, the maintenance convenience of the cooling liquid is greatly improved, so that the whole power supply assembly structure has longer service life and lower maintenance cost while the efficient cooling performance is maintained.

Description

Technical Field

[0001] The invention relates to the technical field of synchronous rectification power supply, in particular to a synchronous rectification power supply assembly structure. Background Art

[0002] Synchronous rectification power supply assembly structures are widely used in the field of electronic equipment to provide stable and reliable power output for various electrical components and assemblies. In this type of power supply assembly structure, in order to ensure that the internal components maintain a suitable operating temperature during operation, it is usually necessary to cooperate with the cooling system to cool the power supply body. When the internal components of the power supply body generate heat during operation, the heat needs to be removed from the heat-generating components through the circulation of a cooling medium (such as coolant), thereby maintaining the normal operation and stable performance of the system.

[0003] However, in the existing cooling methods, blade-type or similar pumps that directly contact the liquid medium are mostly used as driving devices. This type of traditional pump has the following problems in actual use: First, the blades are in direct contact with the coolant, which may introduce mechanical friction debris or impurities, causing the coolant to be contaminated during the circulation process, reducing the quality and service life of the coolant, and leading to an increase in the frequency of subsequent maintenance and replacement. Second, the flow regulation of traditional pumps often requires replacing the motor or complex debugging of the entire transmission mechanism, and it is impossible to flexibly adjust the coolant flow rate without changing the motor power. For the synchronous rectifier power supply assembly structure with a compact internal structure and strict requirements, the pollution risk and inconvenient flow regulation of the traditional pump body make it difficult to meet the requirements of modern electronic equipment for refined heat dissipation and easy maintainability. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a synchronous rectifier power supply assembly structure, which can achieve the goal of eliminating the need for direct contact between the coolant and the pump body, flexibly adjusting the coolant flow rate according to the system heat dissipation requirements, and facilitating the replacement and maintenance of the cooling medium.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A synchronous rectification power supply assembly structure, comprising a power supply body, an end plate is arranged on the front end surface of the power supply body, two mounting plates are symmetrically fixed inside the power supply body, the two end plates pass through the rear end surface of the power supply body, transformers are installed on the surfaces of the two mounting plates facing away from each other, and the top of the power supply body is covered with a shell, and the shell protects the internal equipment of the power supply body; The installation plate array has flow channels symmetrically opened inside, and the rear side of the installation plate array surface has heat dissipation holes evenly opened, the heat dissipation holes are perpendicular to the axis of the flow channels, and multiple heat dissipation holes are placed outside the power supply body, and the heat dissipation holes are used to cool the fluid inside the flow channels. A cooling liquid temporary storage mechanism is installed at the rear end between the two installation plates, and the cooling liquid temporary storage mechanism connects the flow channels on both sides to each other; A reflux mechanism is provided at the front side of the power source body, and the reflux mechanism includes a fixing seat fixed on the inner wall of the end plate and a connecting plate fixed on the front ends of the two mounting row plates, and two hoses are connected between the two connecting plates, and the hoses are arranged in a U shape, and the two ends of the hoses are respectively connected to the front ends of the flow channel; The power source body is equipped with an extrusion flow mechanism, which includes a rotating shaft rotating on the lower surface of the power source body, the rotating shaft is placed at the center of the two hose bends, and an extrusion force control mechanism is also installed inside the rotating shaft.

[0006] Furthermore, the coolant temporary storage mechanism includes a temporary storage tank, which is hollow inside, and a sealing plug is screwed on the end of the temporary storage tank, and the sealing plug seals the opening of the temporary storage tank. Docking pipes are symmetrically arranged on both sides of the temporary storage tank, and the docking pipe structure is L-shaped. The ends of the docking pipes are respectively connected to the rear ends of the flow channel.

[0007] Furthermore, the surface of the fixing seat is provided with an arc surface, the center of the arc surface coincides with the axis of the rotating shaft, and two concave surfaces are provided inside the arc surface, and the two hoses are laid along the concave surfaces respectively.

[0008] Furthermore, a fixing block is arranged on the surface of the rotating shaft, the fixing block corresponds to the position of the hose, the fixing block is in a triangular structure, and extension plates are arranged outwardly on three sides of the fixing block.

[0009] Furthermore, a sliding sleeve is installed on the end surface of the extension plate, and an extrusion roller is rotatably installed on the end of the sliding sleeve. The axis of the extrusion roller is vertically arranged, and the surface of the extrusion roller is provided with an arc surface that matches the hose. The extrusion roller squeezes the area of ​​the hose placed inside the concave surface.

[0010] Furthermore, a first gear is disposed on the surface of the rotating shaft, the first gear is placed above the inside of the power supply body, a motor is fixed on the upper surface of the shell, a second gear is installed on the motor output shaft, and the second gear is meshed with the first gear.

[0011] Furthermore, the shaft curved surface is evenly provided with three open grooves along its axis, the open grooves correspond one to one with the three side surfaces of the fixed block, an inner sliding hole is vertically provided inside the shaft, and the extrusion force control mechanism includes a bidirectional screw rotatably installed inside the inner sliding hole.

[0012] Furthermore, a knob is provided on the top of the bidirectional screw, and the knob is placed above the shell. Two control blocks are slidably installed inside the inner sliding hole, and the two control blocks are respectively screwed on different thread surfaces of the bidirectional screw.

[0013] Furthermore, three connecting rods are evenly hinged on the side of the control block, and the connecting rods pass through the open slots. The ends of the three connecting rods facing away from the control block are respectively hinged on three sliding sleeves.

[0014] The present invention provides a synchronous rectification power supply assembly structure, which has the following beneficial effects: This technical solution effectively avoids the risk of contamination caused by direct contact between the traditional vane pump body and the coolant by adopting an extrusion fluid delivery mechanism in the synchronous rectifier power supply assembly structure. Since non-contact transmission is achieved between the extrusion roller and the hose, the coolant is no longer affected by blade wear or metal particles during the circulation process, thereby greatly improving the cleanliness and service life of the coolant. This structure also reduces the maintenance cost and cycle caused by frequent coolant replacement, so that the power supply body always maintains a high-quality heat dissipation environment during long-term operation.

[0015] This technical solution achieves the goal of flexibly adjusting the coolant flow rate without changing the motor output power by setting an extrusion force control mechanism inside the shaft. Through the multi-level transmission coordination of the knob, bidirectional screw, control block, connecting rod, sleeve and extrusion roller, the extrusion force can be quickly fine-tuned according to the temperature change inside the power supply body, thereby accurately controlling the delivery speed of the coolant. This flexible and adjustable flow management method enables the power supply body to obtain efficient and stable cooling effects under different heat dissipation requirements, thereby improving the overall operating reliability and adaptability of the power supply body.

[0016] This technical solution forms a complete coolant circulation path inside the power supply body, which is composed of a temporary storage tank, a butt pipe, a flow channel, a heat dissipation through hole, a hose and an extrusion mechanism. Through the reasonable pipeline layout and the coordination of the heat dissipation through holes on the mounting plate, the flowing coolant can efficiently take away the heat generated inside and quickly cool down the outside of the mounting plate. The setting of the coolant temporary storage tank and the sealing plug makes the replacement and maintenance of the coolant more convenient, avoiding the problem of difficult cleaning or replacement in the traditional cooling structure, thereby significantly improving the stability, maintainability and service life of the power supply body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention when the shell is removed; Figure 3 It is a schematic diagram of the flow channel distribution structure of the present invention; Figure 4 It is a schematic diagram of the motor transmission structure of the present invention; Figure 5 It is a schematic diagram of the structure of the reflux mechanism of the present invention; Figure 6It is a schematic diagram of the hose distribution structure of the present invention; Figure 7 It is a schematic diagram of the structure of the extrusion flow mechanism of the present invention; Figure 8 For the present invention Figure 7 A schematic cross-sectional structure diagram of ; Fig. 9 It is a schematic structural diagram of the cooling liquid temporary storage mechanism of the present invention.

[0018] Among them, 1. power supply body; 11. end plate; 12. mounting plate; 13. transformer; 14. flow channel; 15. heat dissipation through hole; 2. Coolant temporary storage mechanism; 21. Temporary storage tank; 22. Butt pipe; 23. Sealing plug; 3. Shell; 4. reflux mechanism; 41. fixing seat; 42. arc surface; 43. concave surface; 44. connecting plate; 45. hose; 5. Extrusion flow mechanism; 51. Rotating shaft; 52. First gear; 53. Motor; 54. Second gear; 55. Fixed block; 56. Extension plate; 57. Sliding sleeve; 58. Extrusion roller; 59. Open slot; 510. Inner sliding hole; 6. Extrusion force control mechanism; 61. Bidirectional screw; 62. Knob; 63. Control block; 64. Connecting rod. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1: See also Figure 1-9A synchronous rectification power supply assembly structure includes a power supply body 1, an end plate 11 is arranged on the front end surface of the power supply body 1, two mounting plates 12 are symmetrically fixed inside the power supply body 1, the two end plates 11 pass through the rear end surface of the power supply body 1, a transformer 13 is installed on the surface of the two mounting plates 12 facing away from each other, and the top of the power supply body 1 is covered with a shell 3, and the shell 3 protects the internal equipment of the power supply body 1; in the above structure, the power supply body 1, the end plate 11, the mounting plate 12, the transformer 13 and the shell 3 cooperate with each other to effectively fix and protect the internal components, so as to avoid the internal of the power supply body 1 being affected by the external environment during operation. energy fluctuations; since the synchronous rectification power supply assembly structure needs to ensure the heat dissipation and stability of the internal components of the power supply body 1 during efficient operation, it is necessary to efficiently remove the internally generated heat through a reasonably configured coolant circulation, so that the internal components of the power supply body 1 can maintain a suitable working temperature during long-term operation; in this structure, through the cooperation of the subsequent extrusion flow mechanism and the coolant temporary storage mechanism, an internal driving mode without direct contact with the coolant can be realized, the risk of coolant contamination is reduced to a low level, and the coolant flow rate can be flexibly adjusted according to the operating status of the power supply body 1, thereby ensuring more refined and flexible heat management inside the power supply body 1.

[0021] The installation plate array 12 has symmetrical flow channels 14, and the rear side of the surface of the installation plate array 12 has uniformly opened heat dissipation holes 15, which are perpendicular to the axis of the flow channels 14. The plurality of heat dissipation holes 15 are arranged on the outside of the power supply body 1, and the heat dissipation holes 15 are used to cool the fluid inside the flow channels 14. A cooling liquid temporary storage mechanism 2 is installed at the rear end between the two installation plates 12, and the cooling liquid temporary storage mechanism 2 interconnects the flow channels 14 on both sides; at this location, the arrangement of the installation plate array 12, the flow channels 14 and the heat dissipation holes 15 enables the coolant to dissipate excess heat through the heat dissipation holes 15 when flowing inside the flow channels 14, thereby improving the heat dissipation efficiency inside the power supply body 1; the existence of the cooling liquid temporary storage mechanism 2 enables the coolant on both sides of the flow channels 14 to be interconnected, thereby forming a complete cooling liquid circulation path inside the power supply body 1; through this fluid circulation structure, the power supply body 1 can transfer heat to the surface of the installation plate array 12 during operation and achieve efficient cooling through convection and heat dissipation, thereby meeting the requirements of the synchronous rectifier power supply assembly structure for stable and reliable operation.

[0022] A reflux mechanism 4 is arranged at the front side of the interior of the power supply body 1. The reflux mechanism 4 comprises a fixing seat 41 fixed on the inner wall of the end plate 11 and a connecting plate 44 fixed on the front ends of the two mounting row plates 12. Two hoses 45 are connected between the two connecting plates 44. The hoses 45 are arranged in a U shape. Both ends of the hoses 45 are connected to the front ends of the flow channel 14 respectively. In this structure, the end plate 11, the fixing seat 41, the connecting plate 44, the hoses 45 and the flow channel 14 at the front end are connected front and back to form a complete circulation path. The hoses 45 realize the diversion and reflux of the coolant in the U-shaped arrangement, and can form a smooth flow inside, so that the heat dissipation process inside the power supply body 1 is more balanced and stable. In this configuration where there is no blade directly contacting the coolant, the risk of the coolant being contaminated by solid impurities can be greatly reduced, thereby meeting the requirements of the synchronous rectifier power supply assembly structure for the service life and quality of the coolant.

[0023] 1 is equipped with an extrusion flow mechanism 5, which includes a rotating shaft 51 rotating on the lower surface of the inside of the power supply body 1, and the rotating shaft 51 is placed at the center of the bend of the two hoses 45. An extrusion force control mechanism 6 is also installed inside the rotating shaft 51; in this mechanism, the power supply body 1, the extrusion flow mechanism 5, the rotating shaft 51 and the extrusion force control mechanism 6 all work together, and the hose 45 is non-contactly extruded through the mechanical structure in the extrusion flow mechanism 5, so that the coolant flows inside the hose 45 without directly contacting the surface of the driving component; this structure effectively avoids the pollution problem of the traditional vane pump body, and can change the relative distance of the components on the rotating shaft 51 through the extrusion force control mechanism 6 to achieve flexible regulation of the coolant flow rate, thereby meeting the cooling requirements under different temperature conditions inside the power supply body 1, so that the synchronous rectification power supply assembly structure can maintain stable and efficient operation during long-term operation.

[0024] See also Figure 1 and Fig. 9 The cooling liquid temporary storage mechanism 2 includes a temporary storage tank 21, which is hollow inside. A sealing plug 23 is screwed and installed at the end of the temporary storage tank 21. The sealing plug 23 seals the opening of the temporary storage tank 21. Both sides of the temporary storage tank 21 are symmetrically provided with docking pipes 22. The docking pipe 22 has an L-shaped structure, and the ends of the docking pipes 22 are respectively connected to the rear ends of the flow channel 14; at this point, the coordinated arrangement of the temporary storage tank 21, the sealing plug 23 and the docking pipe 22 is conducive to establishing a complete cooling liquid storage and management system inside the power supply body 1; by injecting appropriate cooling liquid into the temporary storage tank 21 and sealing it with the sealing plug 23, the cooling liquid can be easily replaced or supplemented in subsequent operations; the L-shaped structure of the docking pipe 22 allows the cooling liquid to be smoothly docked with the flow channel 14 and ensures that the cooling liquid continues to circulate inside the power supply body 1; this split cooling liquid storage and transportation system helps to quickly adjust the flow rate according to the actual heat dissipation needs inside the power supply body 1, thereby improving the maintenance convenience and practicality of the synchronous rectifier power supply assembly structure.

[0025] See also Figure 5-6 A curved surface 42 is provided on the surface of the fixed seat 41, and the center of the curved surface 42 coincides with the axis of the rotating shaft 51. Two concave surfaces 43 are provided inside the curved surface 42, and two hoses 45 are laid along the concave surfaces 43 respectively; in this detail, the precise matching of the fixed seat 41, the curved surface 42 and the concave surface 43 ensures that the hose 45 presents a stable geometric layout inside the power supply body 1; through the coincidence of the curved surface 42 and the axis of the rotating shaft 51, the squeezing roller can form a uniform periodic squeezing of the hose 45 when the rotating shaft 51 rotates, thereby maintaining the orderly circulation of the coolant without direct contact with the liquid; through this structure, a compact and efficient coolant delivery route can be formed inside the power supply body 1, thereby further reducing the possibility of the coolant being contaminated by impurities and meeting the high requirements of the synchronous rectifier power supply assembly structure on cooling efficiency.

[0026] See also Figure 5-8 A fixing block 55 is arranged on the surface of the rotating shaft 51, and the fixing block 55 corresponds to the position of the hose 45. The fixing block 55 is a triangular structure, and extension plates 56 are arranged outward on the three sides of the fixing block 55; here, the rotating shaft 51, the fixing block 55 and the extension plate 56 together constitute a core component that can drive the subsequent extrusion mechanism to operate when the rotating shaft 51 rotates; the corresponding position arrangement of the fixing block 55 and the hose 45 ensures that the movement path of the extension plate 56 is accurately aligned with the area where the hose 45 is located when the rotating shaft 51 rotates, so that the extrusion roller can achieve high-precision extrusion; this precise mechanical matching structure effectively ensures the continuous circulation of the coolant inside the power supply body 1 and the flexible adjustment of the flow rate by controlling the extrusion degree, providing highly adaptable heat dissipation performance for the synchronous rectifier power supply assembly structure.

[0027] See also Figure 5-8 A sleeve 57 is installed on the end surface of the extension plate 56, and an extrusion roller 58 is rotatably installed on the end of the sleeve 57. The axis of the extrusion roller 58 is vertically arranged, and an arc surface 42 matching the hose 45 is opened on the surface of the extrusion roller 58. The extrusion roller 58 squeezes the area of ​​the hose 45 placed inside the concave surface 43; here, the combined action of the extension plate 56, the sleeve 57 and the extrusion roller 58 enables the hose 45 to be subjected to precise and adjustable extrusion force during the rotation of the shaft 51; the extrusion roller 58 utilizes the contact interface between the arc surface 42 and the hose 45 to form a continuous flow of the coolant inside the hose 45 and adjusts the extrusion force by changing the extension length of the sleeve 57 to adjust the flow rate of the coolant; this design forms a precise control path for the cooling performance inside the power supply body 1, which meets the requirements of reducing pollution, improving cooling efficiency, extending the service life of the coolant and flexibly adjusting the flow rate in the background technology.

[0028] See also Figure 7-8A first gear 52 is provided on the surface of the rotating shaft 51, and the first gear 52 is placed above the inside of the power source body 1. A motor 53 is fixed on the upper surface of the shell 3, and a second gear 54 is installed on the output shaft of the motor 53, and the second gear 54 and the first gear 52 are meshed with each other; through the gear transmission structure, the power output by the motor 53 can be transmitted to the first gear 52 via the second gear 54 and further drive the rotating shaft 51 to rotate; the cooperation between the motor 53 and the rotating shaft 51 enables the extrusion flow mechanism 5 to form a periodic extrusion on the hose 45, so that the coolant inside the power source body 1 can circulate efficiently without direct contact with the blades; this transmission method ensures the stability of the heat dissipation performance of the power source body 1 while reducing the chance of the coolant being contaminated by the outside world, improves the convenience of maintenance of the internal transmission mechanism and provides a basis for adjusting the flow according to different temperature conditions.

[0029] See also Figure 7-8 The curved surface of the rotating shaft 51 is evenly provided with three open grooves 59 along its axis, and the open grooves 59 correspond to the three sides of the fixed block 55 one by one. An inner sliding hole 510 is vertically provided inside the rotating shaft 51, and the extrusion force control mechanism 6 includes a bidirectional screw 61 rotatably installed inside the inner sliding hole 510; in this structure, the rotating shaft 51 forms a precise match with the open grooves 59, the inner sliding hole 510 and the bidirectional screw 61; the position of the control block can be fine-tuned by rotating the bidirectional screw 61, and the adjustment is transmitted to the position of the extrusion roller through the subsequent structure, so that the extrusion force of the extrusion roller and the distance from the hose 45 can be accurately controlled, thereby flexibly controlling the coolant flow rate to meet the heat dissipation requirements of the power supply body 1 under different working conditions; this design is in line with the background technology's requirement that the flow rate can be adjusted without changing the motor power, and provides a higher adjustment convenience and maintainability for the synchronous rectifier power supply assembly structure.

[0030] See also Figure 8 A knob 62 is provided on the top of the bidirectional screw 61, and the knob 62 is placed above the shell 3. Two control blocks 63 are slidably installed inside the inner sliding hole 510, and the two control blocks 63 are respectively screwed on different thread surfaces of the bidirectional screw 61; at this point, the bidirectional screw 61, the knob 62 and the control block 63 together constitute a core mechanism that can manually or automatically adjust the extrusion force through the controller and the sensor; by rotating the knob 62, the relative position of the bidirectional screw 61 to the control block 63 can be changed, thereby indirectly changing the extrusion force of the extrusion roller on the hose 45; this technical solution realizes high-efficiency cooling control that is flexibly adjusted from the outside inside the power supply body 1, reduces the difficulty of maintenance and ensures that the power supply body 1 can quickly adjust the internal coolant flow under different heat dissipation requirements.

[0031] See also Figure 7-8, three connecting rods 64 are evenly hinged on the side of the control block 63, and the connecting rods 64 pass through the open groove 59. The ends of the three connecting rods 64 facing away from the control block 63 are respectively hinged on three sliding sleeves 57; in this structure, the control block 63, the connecting rod 64 and the sliding sleeve 57 form a complete force transmission path; by adjusting the upper and lower positions of the control block 63, the angle change of the connecting rod 64 can be accurately controlled and the extension amount of the sliding sleeve 57 can be affected, thereby indirectly changing the contact pressure between the extrusion roller 58 and the hose 45 and the flow rate of the coolant in the hose 45; this mechanical linkage relationship can reduce the maintenance difficulty through a fully mechanical adjustment method while meeting the above-mentioned background technology to flexibly adjust the coolant flow rate and reduce pollution; this layer-by-layer transmission process from the knob 62 to the bidirectional screw 61, the control block 63, the connecting rod 64, and then to the sliding sleeve 57 and the extrusion roller 58 enables the internal cooling mechanism of the power supply body 1 to quickly adapt to and maintain high-performance heat dissipation under different working conditions, thereby laying a foundation for the stable operation of the synchronous rectification power supply assembly structure.

[0032] Embodiment 2: Review of beneficial effects: This technical solution adopts an extrusion-type fluid delivery mechanism to replace the traditional vane-type pump body, so that the coolant does not come into direct contact with the vanes during the delivery process, thereby reducing impurity contamination caused by mechanical wear and extending the service life of the coolant.

[0033] Embodiment description: In this embodiment, a high temperature resistant silicone hose (model: HT-SG- The coolant is industrial-grade anti-corrosion and anti-rust coolant (model: CL-789), and the initial purity of the coolant is not less than 99.9%. The extrusion roller is made of stainless steel 304 and the surface is polished with high precision. The matching parts of the shaft, extension plate and sleeve are all nickel-based alloy to ensure long life and high precision. Under the test conditions, the ambient temperature is 25℃, the relative humidity is 50%, and the rated heat source power inside the power supply body is 500W.

[0034] In a traditional vane pump system, after 1000 hours of operation, the metal ion concentration in the coolant can increase to more than 50 ppm, and there are obvious particulate impurities (average particle size of about 5μm); while the extrusion type conveying of this solution does not produce additional particles because there is no blade cutting or wear.

[0035] Through experimental comparison, this embodiment sets 5 groups of running time comparison data (see Table 1): Table 1: Comparison test data between extrusion delivery mechanism and vane pump body (coolant purity comparison)

[0036] It can be seen from the data that the coolant of this technical solution still maintains high purity after long-term operation, and the impurity content is much lower than that of the traditional solution.

[0037] Related formula: In this conveying system, the fluid purity attenuation rate model can be used:

[0038] in: D is the purity attenuation ratio; Ct is the impurity concentration in the coolant at time t; C0 is the impurity concentration at the initial time. By adopting the extrusion type conveying scheme of this scheme, D can be maintained at a level close to 1 after 1000 hours (i.e., basically no attenuation).

[0039] Embodiment 3: Review of beneficial effects: Through the extrusion force control mechanism, the coolant flow rate can be flexibly adjusted without changing the motor power to adapt to different heat load requirements inside the power supply body.

[0040] Description of the embodiment: In this embodiment, the diameter of the rotating shaft is 10 mm, and the diameter of the extrusion roller driven by the rotating shaft is 20 mm. When the knob is rotated one circle (360°), the bidirectional screw can drive the control block to extend the sleeve 0.2 mm. The hose material and model are the same as above, and the coolant is still CL-789. A standard motor with a motor model of ZM-45 is used as the power source. The output speed of the motor is controlled at a constant speed of 2000 rpm. Without changing the motor power, five groups of extrusion force and flow rate comparisons can be achieved by adjusting the knob. Test conditions: The ambient temperature is 25°C, and the heat source power inside the power supply body can vary from 100W to 500W.

[0041] Using the flow calculation formula Q = v·A, where Q is the flow rate (mL / min), v is the average flow velocity in the tube (m / s), and A is the cross-sectional area (m²), the cross-sectional area of ​​the hose is adjusted by the pressure change of the extrusion roller, thereby changing the flow velocity. According to the experimental measured data (see Table 2): Table 2: Comparison of different extrusion forces, flow rates and cooling effects

[0042] It can be seen from the data that the flow rate and internal temperature distribution can be changed by simply adjusting the extrusion force control mechanism without changing the motor power.

[0043] Related formula:

[0044] Where d is the actual inner diameter of the hose after extrusion. By controlling the extension of the sleeve to change d, flexible regulation of Q can be achieved.

[0045] Embodiment 4: Review of beneficial effects: A complete coolant circulation path consisting of a temporary storage tank, a butt tube, a flow channel, a heat dissipation through hole, a hose and an extrusion mechanism is formed, so that the internal heat dissipation efficiency is improved, the coolant is easier to cool down, and the maintenance and replacement of the coolant are more convenient.

[0046] Description of the embodiment: In this embodiment, the temporary storage tank is made of stainless steel 316L (volume 500mL), the sealing plug is made of silicone rubber (temperature resistance range -50℃~200℃), the butt pipe is an L-shaped copper tube (inner diameter 8mm), the flow channel material is aluminum alloy (6061), the number of heat dissipation holes is 20, the through-hole diameter is 2 mm, and they are evenly distributed at the rear end of the installation plate.

[0047] In the experiment, the heat source of the power supply body was set to 500W, the flow rate was fixed to 400mL / min (achieved by adjusting in Example 2), and it was continuously operated for 100 hours at an ambient temperature of 25°C. In order to compare with the traditional system without a temporary storage tank and a heat dissipation through-hole structure, the comparison condition is that there is only a straight-through pipeline in the traditional system without additional through-hole cooling. The temperature of the key points inside the power supply body (T1, T2, and T3 are the temperature points at different internal device locations) is measured, and the coolant return temperature is recorded. The data is shown in Table 3: Table 3: Experimental data comparing temporary storage tank + heat dissipation through hole with traditional structure

[0048] From the results, it can be seen that the temperature rise of this scheme is significantly lower than that of the traditional scheme after long-term operation, and the coolant return temperature is also lower, indicating that the coolant circulation path and temporary storage tank help to cool the coolant during the circulation process and maintain system stability.

[0049] Related formula: Cooling efficiency can be estimated using the heat balance formula:

[0050] Where m is the mass flow rate of the coolant (kg / s), c is the specific heat capacity (J / kg·K), and ΔT is the inlet and outlet temperature difference (K). In this solution, ΔT is effectively reduced, making the heat removal efficiency higher at the same flow rate.

[0051] Embodiment 5: Review of beneficial effects: The non-contact extrusion drive mode solves the problems of easy contamination of the traditional coolant pump body, difficult flow regulation, and inconvenient maintenance, so that the synchronous rectification power supply assembly structure maintains high performance and reliability under various working conditions.

[0052] Description of the embodiment: In this embodiment, the same set of equipment is tested under different working conditions (heat load 200W, 350W, 500W, 650W), and maintained under each load for 200 hours without changing the coolant during the period to verify the adaptability and long-term stability of the system. The extrusion mechanism material is the same as before, the coolant is still CL-789, the hose, temporary storage tank, flow channel, and heat dissipation through-hole structure are the same as in Example 3, and the motor power and shaft design are the same as in Example 2. The traditional blade pump body solution is used as the control group to compare and observe the performance differences under different heat loads and long-term operating conditions, including coolant purity, internal temperature, and flow regulation response time.

[0053] Table 4 gives the comparative data after 200 hours under different heat load conditions (five time points were randomly selected for recording): Table 4: Long-term multi-operating condition comparison data of non-contact extrusion mode and vane pump mode

[0054] From the data analysis, it can be seen that this technical solution can still maintain a low degree of coolant contamination, a more stable internal temperature, and a faster flow regulation response time under a variety of heat load conditions; compared with traditional vane pumps, it has less performance degradation after long-term operation, more sensitive response, and easier operation.

[0055] Related formula: The flow response time τ can be used as an evaluation indicator:

[0056] Where ΔQ is the required flow adjustment amount, and Δt is the time required to complete the adjustment. The τ value in this solution is between 2.0 and 2.6 seconds, which is significantly better than the range of 2.0 to 4.0 seconds in the traditional solution. This indicator can intuitively reflect the rapid response characteristics of this solution.

[0057] Working principle: First, the sealing plug 23 is screwed open and the coolant is injected into the temporary storage tank 21, so that the coolant fills the temporary storage tank 21 and the flow channel 14. When working, the motor 53 can be started to drive the second gear 54 to rotate, and the engagement of the second gear 54 with the first gear 52 drives the rotating shaft 51 to rotate. When the rotating shaft 51 rotates, it can drive the two fixed blocks 55 on its surface to rotate synchronously, so that the extension plate 56 rotates, and then drives the squeezing roller 58 at its end to rotate around the axis of the rotating shaft 51. Since the hose 45 is laid along the concave surface 43 of the inner wall of the arc surface 42, and the rotation axis of the rotating shaft 51 coincides with the center of the inner curved surface of the arc surface 42, when the rotating shaft 51 rotates, the three squeezing rollers 58 can circulate to squeeze the hose 45, so that the coolant inside the hose 45 flows due to squeezing, and the coolant is transported without contact, which prevents the traditional pump body blades from contacting with the coolant and causing pollution, thereby increasing the service life of the coolant and ensuring the cooling quality. When the internal coolant is transported by extrusion, the coolant will form a circulation flow between the coolant temporary storage mechanism 2, the flow channel 14 and the hose 45 to drive the heat generated by the work inside the power supply body 1. The surface of the mounting plate 12 is not only equipped with a transformer 13 but also with multiple electrical components to transfer the heat to the mounting plate 12, and the heat is taken away by the flowing coolant. When the coolant flows to the rear end of the mounting plate 12, because the rear end of the mounting plate 12 is directly exposed to the air, the internal coolant can be cooled, and the multiple heat dissipation holes 15 on the surface can improve the cooling effect of the coolant. The cooperation of the temporary storage tank 21 and the sealing plug 23 facilitates the replacement of the internal coolant, thereby improving the convenience of use.

[0058] During operation, the squeezing force of the squeezing roller 58 on the hose 45 can be adjusted, and then the flow rate of the coolant can be controlled without changing the power of the motor 53. The purpose of changing the flow rate can be met by using an ordinary drive motor. According to the temperature inside the power supply body 1, the knob 62 can be rotated externally to control the rotation of the bidirectional screw 61, and then the two control blocks 63 are controlled to move. When the control block 63 moves, the extension distance of the sliding sleeve 57 can be controlled by the connecting rod 64, and then the distance between the squeezing roller 58 and the axis of the rotating shaft 51 is controlled. When the sliding sleeve 57 is extended, the squeezing force of the squeezing roller 58 on the hose 45 increases. At this time, the internal coolant flow rate increases, otherwise the flow rate decreases. This process can be controlled manually or by a controller in conjunction with the temperature sensor inside the power supply body 1.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A synchronous rectification power supply assembly structure, comprising a power supply body (1), characterized in that: The front end surface of the power source body (1) is provided with an end plate (11), two mounting plates (12) are symmetrically fixed inside the power source body (1), the two end plates (11) penetrate the rear end surface of the power source body (1), and transformers (13) are mounted on surfaces of the two mounting plates (12) facing away from each other. The top of the power source body (1) is covered with a shell (3), and the shell (3) protects the internal equipment of the power source body (1); The mounting plate array (12) has flow channels (14) symmetrically formed inside, and heat dissipation holes (15) are evenly formed on the rear side of the surface of the mounting plate array (12). The heat dissipation holes (15) are perpendicular to the axis of the flow channels (14). A plurality of the heat dissipation holes (15) are arranged outside the power source body (1). The heat dissipation holes (15) are used to cool the fluid inside the flow channels (14). A cooling liquid temporary storage mechanism (2) is installed at the rear end between the two mounting plate arrays (12). The cooling liquid temporary storage mechanism (2) interconnects the flow channels (14) on both sides. A reflux mechanism (4) is provided at the front side of the power source body (1), the reflux mechanism (4) comprising a fixing seat (41) fixed to the inner wall of the end plate (11) and a connecting plate (44) fixed to the front ends of the two mounting row plates (12), two hoses (45) are connected between the two connecting plates (44), the hoses (45) are arranged in a U shape, and both ends of the hoses (45) are respectively connected to the front ends of the flow channel (14); The power source body (1) is equipped with an extrusion flow mechanism (5), the extrusion flow mechanism (5) comprising a rotating shaft (51) rotating on the lower surface of the power source body (1), the rotating shaft (51) being located at the center of the bends of the two hoses (45), and an extrusion force control mechanism (6) being also installed inside the rotating shaft (51).

2. A synchronous rectification power supply assembly structure according to claim 1, characterized in that: The cooling liquid temporary storage mechanism (2) comprises a temporary storage tank (21), the interior of the temporary storage tank (21) is hollow, a sealing plug (23) is screwed on the end of the temporary storage tank (21), the sealing plug (23) seals the opening of the temporary storage tank (21), and butt pipes (22) are symmetrically arranged on both sides of the temporary storage tank (21), the butt pipes (22) are L-shaped, and the ends of the butt pipes (22) are respectively connected to the rear ends of the flow channel (14).

3. A synchronous rectification power supply assembly structure according to claim 1, characterized in that: The fixed seat (41) has an arc surface (42) on its surface, the center of the arc surface (42) coincides with the axis of the rotating shaft (51), and two concave surfaces (43) are formed inside the arc surface (42), and the two hoses (45) are laid along the concave surfaces (43) respectively.

4. A synchronous rectification power supply assembly structure according to claim 3, characterized in that: A fixing block (55) is arranged on the surface of the rotating shaft (51), the fixing block (55) corresponds to the position of the hose (45), the fixing block (55) is in a triangular structure, and three side surfaces of the fixing block (55) are all arranged outwardly with extension plates (56).

5. A synchronous rectification power supply assembly structure according to claim 4, characterized in that: A sliding sleeve (57) is mounted on the end surface of the extension plate (56), and an extrusion roller (58) is rotatably mounted on the end of the sliding sleeve (57). The axis of the extrusion roller (58) is vertically arranged, and a curved surface matching the hose (45) is formed on the surface of the extrusion roller (58). The extrusion roller (58) squeezes the area of ​​the hose (45) located inside the concave surface (43).

6. The synchronous rectification power supply assembly structure according to claim 1, characterized in that: A first gear (52) is provided on the surface of the rotating shaft (51), and the first gear (52) is placed above the inside of the power source body (1). A motor (53) is fixed on the upper surface of the shell (3), and a second gear (54) is installed on the output shaft of the motor (53), and the second gear (54) and the first gear (52) are meshed with each other.

7. The synchronous rectification power supply assembly structure according to claim 5, characterized in that: The rotating shaft (51) has three open grooves (59) uniformly formed on its curved surface along its axis, the open grooves (59) corresponding one to one with the three side surfaces of the fixed block (55), an inner sliding hole (510) vertically formed inside the rotating shaft (51), and the extrusion force control mechanism (6) comprising a bidirectional screw (61) rotatably mounted inside the inner sliding hole (510).

8. A synchronous rectification power supply assembly structure according to claim 7, characterized in that: A knob (62) is provided at the top of the bidirectional screw (61), and the knob (62) is placed above the housing (3). Two control blocks (63) are slidably mounted inside the inner sliding hole (510), and the two control blocks (63) are respectively screwed onto different thread surfaces of the bidirectional screw (61).

9. A synchronous rectification power supply assembly structure according to claim 8, characterized in that: Three connecting rods (64) are evenly hinged on the side of the control block (63), and the connecting rods (64) pass through the open slot (59). One end of the three connecting rods (64) facing away from the control block (63) is hinged on three sliding sleeves (57) respectively.

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