Multi-pulse isolation type transformer rectifier
By designing protective plates, buffer mechanisms and heat dissipation systems in multi-pulse isolation transformer rectifiers, the problem of easy damage and poor heat dissipation when the speed changes quickly is solved, and higher protection and heat dissipation effects are achieved.
Patent Information
- Application Number
- CN202420512002.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-16
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-03-16
AI Technical Summary
Due to its large weight and strong inertia, existing multi-pulse isolation transformer rectifiers are prone to damage caused by impact when the speed changes rapidly, and cannot quickly cool down, resulting in high temperature damage.
A multi-pulse isolation transformer is designed, using a combination of protective plate, fixed base, support plate and buffer mechanism. Through structures such as sliders and slide chutes, springs and transmission rods, buffering the inertia and impact, and The heat dissipation effect is improved through the design of cooling fans, activated carbon filters and curved air guides.
It effectively reduces the risk of damage of the transformer during impact, improves its heat dissipation effect, and extends the service life of the equipment.
Smart Images
Figure CN222509089U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformer rectifiers, in particular to a multi-pulse isolated transformer rectifier. Background Art
[0002] Transformer-rectifiers are mainly used in large and medium-sized aircraft that mainly use AC power. A typical transformer-rectifier is a combination of a transformer and a rectifier. The transformer reduces the AC voltage, and the rectifier converts the stepped-down AC into DC. Since it has no output voltage regulation function, the output voltage is greatly affected by the load and power supply voltage. In addition, because it has a transformer, its size and weight are also large.
[0003] When the currently existing multi-pulse isolated transformer-rectifier is in use, due to the large weight of the multi-pulse isolated transformer-rectifier itself, when the speed changes rapidly, its inertia is also large, which can easily cause the multi-pulse isolated transformer-rectifier to be damaged when it is impacted, and it is impossible to quickly cool down the high temperature generated by the operation of the multi-pulse isolated transformer-rectifier, resulting in damage due to the inability to cool down the high temperature.
[0004] Therefore, it is particularly important to design a multi-pulse isolated transformer rectifier to solve the above defects. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model designs a multi-pulse isolated transformer-rectifier, which aims to solve the technical problems in the prior art that the multi-pulse isolated transformer-rectifier is heavy when in use. When the speed changes rapidly, the multi-pulse isolated transformer-rectifier is easily damaged when impacted due to inertia, and the high temperature generated by the operation of the multi-pulse isolated transformer-rectifier cannot be quickly cooled, resulting in damage due to the inability to cool down the high temperature.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A multi-pulse isolated transformer rectifier, comprising a transformer rectifier body, wherein both left and right sides of the transformer rectifier body are fixedly mounted with protective plates, a fixed base is movably mounted at the bottom of the transformer rectifier body, a front end of the fixed base is fixedly connected with an air inlet cover, a rear end of the fixed base is fixedly connected with a ventilation cover, and the interior of the fixed base and the left and right ends of the bottom of the transformer rectifier body are slidably connected with support plates, characterized in that it also includes:
[0008] A first buffer mechanism, the first buffer mechanism is fixedly installed between the protection plate and the transformer rectifier body, and the first buffer mechanism is used for force buffering of the protection plate;
[0009] The second buffer mechanism is fixedly installed between the support plate and the fixed base, and is used for buffering the force of the support plate.
[0010] As a preferred solution of the utility model, an air inlet box is fixedly installed at the bottom end of the front side of the transformer-rectifier body, and an air outlet box is fixedly installed at the top end of the back side of the transformer-rectifier body. The interiors of the air inlet box and the air outlet box are both slidably connected with activated carbon filters.
[0011] As a preferred solution of the utility model, multiple groups of arc-shaped air guide plates are fixedly connected to the inner side of the air inlet hood, two groups of cooling fans are installed at the top of the inner side of the ventilation hood, and a cooling air duct is formed between the air inlet hood and the ventilation hood and located on the outside of the transformer rectifier body.
[0012] As a preferred solution of the utility model, both front and rear ends of the support plate are fixedly connected with sliders, and both groups of the sliders are slidably connected to the fixed base through sliding grooves.
[0013] As a preferred solution of the utility model, the first buffer mechanism includes multiple groups of sliding rods fixedly installed on the left and right sides of the transformer rectifier body, the outer sides of the multiple groups of sliding rods are slidably connected with sliding sleeves, a first transmission rod is provided between the sliding sleeve and the protective plate, the upper and lower ends of the first transmission rod are respectively rotatably connected to the protective plate and the sliding sleeve, and the outer side of the sliding rod is provided with a first spring.
[0014] As a preferred solution of the utility model, the second buffer mechanism includes a moving seat fixedly installed in the middle of the bottom of the support plate, the bottom of the moving seat is fixedly connected to the fixed base through a second spring, the front and rear ends of the moving seat are rotatably connected to the second transmission rod, the two groups of the second transmission rods are rotatably connected to the moving blocks at one end away from the moving seat, the two groups of the moving blocks are fixedly connected to the third spring at one end away from each other, and the two groups of the third springs are fixedly connected to the fixed base through the fixed block at one end away from each other.
[0015] As a preferred solution of the utility model, the bottoms of the two groups of moving blocks are fixedly connected with limiting blocks, and the limiting blocks are slidably connected to the fixed base through limiting grooves.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] 1. In the utility model, the protective plate, the fixed base, the support plate and the second buffer mechanism are designed in coordination. The bottom end of the transformer rectifier body is mounted on the fixed base through the support plate. When the transformer rectifier body generates inertia, the slider slides up and down on the inner side of the slide groove, and the support plate moves downward to drive the moving seat to move downward, so that the second spring is compressed downward to buffer the inertia, and the second transmission rod is folded accordingly to push the moving block, so that the limit block slides on the inner side of the limit groove, and the moving block pushes the third spring to compress it, further buffering the inertia, thereby offsetting most of the inertia generated by the transformer rectifier body to avoid damage. When the left and right sides of the transformer rectifier body are impacted, protection is provided by the protective plate, and after the protective plate is impacted, it pushes the first transmission rod to fold inward, so that the sliding sleeve squeezes the first spring on the outer side of the sliding rod, thereby buffering the impact, thereby greatly improving the protection of the transformer rectifier body.
[0018] 2. In the utility model, through the coordinated design of the transformer rectifier body, the fixed base, the air inlet cover and the ventilation cover, when the transformer rectifier body is in use, the heat dissipation fan is started to suck the external air into the interior of the transformer rectifier body through the air inlet box, and finally the air takes out the heat inside the transformer rectifier body and is discharged from the air outlet box, and then is discharged through the heat dissipation fan, so as to improve the internal heat dissipation effect of the transformer rectifier body, when the air enters the interior of the transformer rectifier body, the impurities and moisture in the air are filtered through the activated carbon filter net, and finally the impurities and moisture in the air are further filtered when the air is discharged from the air outlet box, so as to ensure the cleanliness and dryness of the interior of the transformer rectifier body and avoid damage, and at the same time, when the heat dissipation fan is working, the external air will also be introduced into the interior of the heat dissipation duct from between the multiple groups of arc-shaped air guide plates, and finally be discharged through the heat dissipation fan, and the external heat dissipation effect of the transformer rectifier body is further improved by allowing the airflow to circulate quickly from the bottom and back of the transformer rectifier body. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the back structure of the transformer rectifier body of the utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the first buffer mechanism of the utility model;
[0022] Figure 4 for Figure 3 A magnified schematic diagram of the middle part;
[0023] Figure 5 This is a schematic diagram of the fixed base structure of the utility model;
[0024] Figure 6This is a schematic diagram of the structure of the second buffer mechanism of the utility model;
[0025] Figure 7 for Figure 6 Enlarged schematic diagram of part B in the middle.
[0026] In the figure: 1. transformer rectifier body; 101. air inlet box; 102. air outlet box; 103. activated carbon filter; 2. protective plate; 3. fixed base; 4. air inlet cover; 401. arc-shaped air guide plate; 402. cooling fan; 403. cooling air duct; 5. ventilation cover; 6. support plate; 601. slider; 602. slide groove; 7. first buffer mechanism; 701. slide rod; 702. sleeve; 703. first transmission rod; 704. first spring; 8. second buffer mechanism; 801. moving seat; 802. second spring; 803. second transmission rod; 804. moving block; 805. third spring; 806. fixed block; 807. limit block; 808. limit groove. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0028] Example:
[0029] See also Figure 1-Figure 7 , the utility model provides a technical solution:
[0030] A multi-pulse isolated transformer rectifier includes a transformer rectifier body 1, a protective plate 2 is fixedly installed on both the left and right sides of the transformer rectifier body 1, a fixed base 3 is movably installed on the bottom of the transformer rectifier body 1, an air inlet cover 4 is fixedly connected to the front end of the fixed base 3, a ventilation cover 5 is fixedly connected to the rear end of the fixed base 3, and a support plate 6 is slidably connected to the left and right ends of the bottom of the transformer rectifier body 1 inside the fixed base 3, and also includes:
[0031] A first buffer mechanism 7, which is fixedly installed between the protection plate 2 and the transformer rectifier body 1, and is used for force buffering of the protection plate 2;
[0032] The second buffer mechanism 8 is fixedly installed between the support plate 6 and the fixed base 3 , and is used for buffering the force of the support plate 6 .
[0033] First, an air inlet box 101 is fixedly installed at the bottom end of the front side of the transformer rectifier body 1, and an air outlet box 102 is fixedly installed at the top end of the back side of the transformer rectifier body 1. The insides of the air inlet box 101 and the air outlet box 102 are slidably connected with an activated carbon filter 103. A plurality of groups of arc-shaped air guide plates 401 are fixedly connected to the inner side of the air inlet cover 4. Two groups of cooling fans 402 are installed at the top end of the inner side of the ventilation cover 5. A cooling air duct 403 is formed between the air inlet cover 4 and the ventilation cover 5 and located on the outside of the transformer rectifier body 1. When the transformer rectifier body 1 is in use, the cooling fan 402 is started to suck external air into the interior of the transformer rectifier body 1 through the air inlet box 101. Finally, the air takes out the heat inside the transformer rectifier body 1 and is discharged from the air outlet box 102. , and then discharged through the cooling fan 402 to improve the internal heat dissipation effect of the transformer rectifier body 1. When the air enters the interior of the transformer rectifier body 1, the impurities and moisture in the air are filtered through the activated carbon filter 103. Finally, when the air is discharged from the air outlet box 102, the impurities and moisture in the air are further filtered, thereby ensuring the cleanliness and dryness of the interior of the transformer rectifier body 1 to avoid damage. At the same time, when the cooling fan 402 is working, the external air will also be introduced into the interior of the heat dissipation duct 403 from between the multiple groups of arc-shaped air guide plates 401, and finally discharged through the cooling fan 402. By allowing the airflow to circulate quickly from the bottom and back of the transformer rectifier body 1, the external heat dissipation effect of the transformer rectifier body 1 is further improved.
[0034] Then, sliders 601 are fixedly connected to the front and rear ends of the support plate 6, and the two groups of sliders 601 are slidably connected to the fixed base 3 through the slide groove 602. The bottom end of the transformer rectifier body 1 is mounted on the fixed base 3 through the support plate 6. When the transformer rectifier body 1 generates inertia, the slider 601 slides up and down on the inner side of the slide groove 602, so that the support plate 6 can move up and down and use the second buffer mechanism 8 at the bottom to buffer the inertia, thereby avoiding the transformer rectifier body 1 from being damaged by impact, so as to improve the protection of the transformer rectifier body 1.
[0035] Furthermore, the first buffer mechanism 7 includes a plurality of groups of slide bars 701 fixedly mounted on the left and right sides of the transformer rectifier body 1, and the outer sides of the plurality of slide bars 701 are slidably connected with slide sleeves 702, and a first transmission rod 703 is provided between the slide sleeve 702 and the protective plate 2, and the upper and lower ends of the first transmission rod 703 are rotatably connected with the protective plate 2 and the slide sleeve 702 respectively, and a first spring 704 is sleeved on the outer side of the slide bar 701. When the left and right sides of the transformer rectifier body 1 are impacted, the protective plate 2 is used for protection, and after the protective plate 2 is impacted, it pushes the first transmission rod 703 to fold inward, so that the slide sleeve 702 squeezes the first spring 704 on the outer side of the slide bar 701, thereby buffering the impact, thereby further improving the protection of the transformer rectifier body 1.
[0036] Secondly, the second buffer mechanism 8 includes a moving seat 801 fixedly installed in the middle of the bottom of the support plate 6. The bottom of the moving seat 801 is fixedly connected to the fixed base 3 through a second spring 802. The front and rear ends of the moving seat 801 are rotatably connected to the second transmission rod 803. The ends of the two groups of second transmission rods 803 away from the moving seat 801 are rotatably connected to the moving blocks 804. The ends of the two groups of moving blocks 804 away from each other are fixedly connected to the third spring 805. The ends of the two groups of third springs 805 away from each other are fixedly connected to the fixed base 3 through the fixed block 806. When the transformer rectifier body 1 generates inertia, the support plate 6 moves downward to drive the moving seat 801 to move downward, so that the second spring 802 is compressed downward to buffer the inertia.
[0037] Finally, the bottoms of the two groups of moving blocks 804 are fixedly connected to the limiting blocks 807, and the limiting blocks 807 are slidably connected to the fixed base 3 through the limiting grooves 808. When the moving seat 801 moves downward to buffer the inertia, the second transmission rod 803 is folded and pushes the moving block 804, so that the limiting blocks 807 slide on the inner side of the limiting grooves 808, and the moving block 804 pushes the third spring 805 to compress it, and the limiting blocks 807 slide in the limiting grooves 808 to make the moving block 804 move stably, further buffering the inertia, thereby offsetting most of the inertia generated by the transformer rectifier body 1, avoiding damage to it, and thereby improving the protection of the transformer rectifier body 1.
[0038] In this embodiment, the implementation scenario is specifically as follows: the bottom end of the transformer rectifier body 1 is mounted on the fixed base 3 through the support plate 6. When the transformer rectifier body 1 generates inertia, the slider 601 slides up and down on the inner side of the slide groove 602, and the support plate 6 moves downward to drive the moving seat 801 to move downward, so that the second spring 802 is compressed downward to buffer the inertia, and the second transmission rod 803 is folded to push the moving block 804, so that the limit block 807 slides on the inner side of the limit groove 808, and the moving block 804 pushes the third spring 805 to make it The inertia is further buffered, thereby offsetting most of the inertia generated by the transformer rectifier body 1 to prevent it from being damaged. When the left and right sides of the transformer rectifier body 1 are impacted, the protective plate 2 is used for protection. After the protective plate 2 is impacted, it pushes the first transmission rod 703 to fold inward, so that the sliding sleeve 702 squeezes the first spring 704 on the outside of the sliding rod 701, thereby buffering the impact. At the same time, when the transformer rectifier body 1 is in use, the cooling fan 402 is started to suck the external air into the transformer rectifier body through the air inlet box 101. The air enters the interior of the transformer rectifier body 1, and finally the air takes out the heat inside the transformer rectifier body 1 and is discharged from the air outlet box 102, and then is discharged through the cooling fan 402 to improve the internal heat dissipation effect of the transformer rectifier body 1. When the air enters the interior of the transformer rectifier body 1, the impurities and moisture in the air are filtered through the activated carbon filter 103. Finally, when the air is discharged from the air outlet box 102, the impurities and moisture in the air are further filtered, thereby ensuring the cleanliness and dryness of the interior of the transformer rectifier body 1 to avoid damage. At the same time, when the cooling fan 402 is working, the external air will be introduced into the interior of the cooling duct 403 from between the multiple groups of arc-shaped air guide plates 401, and finally discharged through the cooling fan 402. By allowing the airflow to circulate quickly from the bottom and back of the transformer-rectifier main body 1, the external heat dissipation effect of the transformer-rectifier main body 1 is further improved. The whole operation process is simple and convenient. Compared with the existing multi-pulse isolated transformer-rectifier, the utility model can improve the overall protection and heat dissipation effect of the multi-pulse isolated transformer-rectifier through design.
[0039] Although the 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 multi-pulse isolated transformer rectifier, comprising a transformer rectifier body (1), wherein a protective plate (2) is fixedly installed on both the left and right sides of the transformer rectifier body (1), a fixed base (3) is movably installed on the bottom of the transformer rectifier body (1), an air inlet cover (4) is fixedly connected to the front end of the fixed base (3), a ventilation cover (5) is fixedly connected to the rear end of the fixed base (3), and support plates (6) are slidably connected to the left and right ends of the bottom of the transformer rectifier body (1) inside the fixed base (3), characterized in that: Also includes: A first buffer mechanism (7), the first buffer mechanism (7) being fixedly installed between the protective plate (2) and the transformer rectifier body (1), the first buffer mechanism (7) being used for buffering the force of the protective plate (2); A second buffer mechanism (8), the second buffer mechanism (8) is fixedly installed between the support plate (6) and the fixed base (3), and the second buffer mechanism (8) is used for buffering the force of the support plate (6).
2. A multi-pulse isolated transformer rectifier according to claim 1, characterized in that: An air inlet box (101) is fixedly mounted on the bottom end of the front face of the transformer-rectifier body (1), and an air outlet box (102) is fixedly mounted on the top end of the back face of the transformer-rectifier body (1). An activated carbon filter (103) is slidably connected to the interior of the air inlet box (101) and the air outlet box (102).
3. The multi-pulse isolated transformer rectifier according to claim 1, characterized in that: A plurality of groups of arc-shaped air guide plates (401) are fixedly connected to the inner side of the air inlet cover (4), two groups of cooling fans (402) are installed at the top of the inner side of the ventilation cover (5), and a cooling air duct (403) is formed between the air inlet cover (4) and the ventilation cover (5) and located on the outer side of the transformer rectifier body (1).
4. The multi-pulse isolated transformer rectifier according to claim 1, characterized in that: The front and rear ends of the support plate (6) are fixedly connected with sliders (601), and the two groups of sliders (601) are slidably connected to the fixed base (3) via sliding grooves (602).
5. The multi-pulse isolated transformer rectifier according to claim 1, characterized in that: The first buffer mechanism (7) comprises a plurality of groups of sliding rods (701) fixedly mounted on the left and right sides of the transformer rectifier body (1); the outer sides of the plurality of groups of sliding rods (701) are slidably connected with sliding sleeves (702); a first transmission rod (703) is provided between the sliding sleeve (702) and the protective plate (2); the upper and lower ends of the first transmission rod (703) are rotatably connected to the protective plate (2) and the sliding sleeve (702) respectively; and a first spring (704) is sleeved on the outer side of the sliding rod (701).
6. The multi-pulse isolated transformer rectifier according to claim 1, characterized in that: The second buffer mechanism (8) comprises a movable seat (801) fixedly mounted at the middle of the bottom of the support plate (6); the bottom of the movable seat (801) is fixedly connected to the fixed base (3) via a second spring (802); the front and rear ends of the movable seat (801) are both rotatably connected to second transmission rods (803); the ends of two groups of the second transmission rods (803) away from the movable seat (801) are both rotatably connected to movable blocks (804); the ends of the two groups of the movable blocks (804) away from each other are both fixedly connected to third springs (805); the ends of the two groups of the third springs (805) away from each other are both fixedly connected to the fixed base (3) via a fixed block (806).
7. The multi-pulse isolated transformer rectifier according to claim 6, characterized in that: The bottoms of the two groups of moving blocks (804) are fixedly connected to limit blocks (807), and the limit blocks (807) are slidably connected to the fixed base (3) via limit grooves (808).