Protective device and transformer

Abstract

The utility model relates to the technical field of transformer protection, and discloses a protection device and a transformer, the protection device comprises a box body, the interior of the box body is provided with a cavity, and the cavity is suitable for accommodating electrical equipment; the mounting base is arranged in the cavity and elastically connected with the box body, and the main plane of the mounting base abuts against the electrical equipment so as to be suitable for supporting the electrical equipment; and the limiting structure is connected with the mounting seat, and the limiting structure is suitable for limiting the electrical equipment, so that the electrical equipment is fixedly connected with the mounting seat. According to the protection device provided by the utility model, the mounting seat elastically connected with the box body is arranged in the box body, and the electrical equipment is fixedly connected with the mounting seat through the limiting structure, so that a damping effect on the electrical equipment is achieved, and the electrical equipment is prevented from being damaged or the performance of the electrical equipment is prevented from being influenced due to vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer protection, in particular to a protection device and a transformer. Background Art

[0002] Transformers are electrical devices that use the principle of electromagnetic induction to change AC voltage. The main components include primary coils, secondary coils and iron cores (magnetic cores). Transformers can be divided into power transformers and special transformers according to their uses. In actual use, no matter what kind of transformer, it will vibrate due to various factors. When the vibration frequency is too fast or the vibration amplitude is large, it will damage the internal structure of electrical equipment such as transformers, thereby causing damage to them or affecting their performance. Utility Model Content

[0003] In view of this, the utility model provides a protective device and a transformer to solve the problem that the transformer is damaged or its performance is affected due to vibration during use.

[0004] In a first aspect, the utility model provides a protective device, comprising:

[0005] A box body having a cavity inside, the cavity being suitable for accommodating the electrical equipment;

[0006] A mounting seat is arranged in the cavity and elastically connected to the box body, and a main plane of the mounting seat abuts against the electrical equipment to be suitable for supporting the electrical equipment;

[0007] The limiting structure is connected to the mounting seat, and the limiting structure is suitable for limiting the electrical equipment so that the electrical equipment and the mounting seat are fixedly connected.

[0008] Beneficial effect: By arranging a mounting seat elastically connected to the box body, and by using a limiting structure to form a fixed connection between the electrical equipment and the mounting seat, a shock absorbing effect is exerted on the electrical equipment, thereby preventing the electrical equipment from being damaged or affecting its performance due to vibration.

[0009] In an optional embodiment, the mounting seat is fixedly connected to a sleeve away from the main plane of the electrical equipment, and a fixing rod is fixedly connected to the position of the sleeve on the inner wall of the box corresponding to the position of the sleeve. The end of the fixing rod close to the mounting seat is inserted into the sleeve and elastically connected to the sleeve.

[0010] Beneficial effects: One end of the fixing rod is passed through the sleeve and elastically connected to the sleeve to limit the displacement direction of the mounting seat, thereby facilitating the improvement of the overall connection stability of the device, and absorbing the mechanical energy generated by the vibration of the electrical equipment through the friction between the fixing rod and the sleeve, thereby achieving a shock-absorbing effect on the mounting seat and the electrical equipment.

[0011] In an optional embodiment, a first elastic member is disposed between the inner wall of the sleeve close to the mounting seat and the fixing rod, and the first elastic member is suitable for forming an elastic connection between the fixing rod and the sleeve.

[0012] Beneficial effect: By arranging the first elastic member between the fixing rod and the inner wall of the sleeve, the mounting seat and the box body are elastically connected, which is beneficial to the shock absorption effect on the electrical equipment installed on the mounting seat, thereby preventing the electrical equipment from being damaged or affecting its performance due to vibration.

[0013] In an optional embodiment, an energy absorbing component is provided between a main plane of the mounting seat facing away from the electrical equipment and an inner wall of the box body, and the energy absorbing component is suitable for reducing vibration of the mounting seat.

[0014] Beneficial effect: By arranging an energy-absorbing component between the mounting seat and the inner wall of the box, the vibration of the mounting seat can be further reduced, thereby facilitating the improvement of the shock-absorbing effect of the protective device on the electrical equipment.

[0015] In an optional embodiment, the energy absorption assembly includes a symmetrically arranged connecting rod, a first end of the connecting rod is hinged to the mounting seat, and a second end is abutted against the inner wall of the box body; the energy absorption assembly also includes a third elastic member, and both ends of the third elastic member are respectively fixedly connected to the second end of the connecting rod.

[0016] Beneficial effect: By arranging a third elastic member between the second ends of the two connecting rods, the vibration force of the mounting seat can be converted into the elastic force of the third elastic member, which is conducive to further improving the shock absorption effect of the protective device on the electrical equipment.

[0017] In an optional embodiment, the limiting structure includes a movable rod arranged at an angle to the main plane of the mounting seat, the first end of the movable rod is fixedly connected to a first pressure block, and the first pressure block abuts against the side of the electrical equipment away from the mounting seat; the second end of the movable rod passes through the mounting seat and is fixedly connected to a second pressure block, and a second elastic member is arranged between the second pressure block and the mounting seat, and the second elastic member is suitable for making the movable rod have a movement tendency to drive the first pressure block to approach the mounting seat.

[0018] Beneficial effect: the first pressing block is in contact with the electrical device, and the second elastic member enables the movable rod to have a movement tendency to drive the first pressing block to approach the mounting seat, thereby facilitating the disassembly and assembly of the electrical device and the mounting seat, thereby simplifying the installation process of the electrical device.

[0019] In an optional embodiment, the number of the limiting structures includes at least two, and the dimensions between the plurality of movable rods are adapted to the dimensions of the electrical equipment.

[0020] Beneficial effect: By setting a plurality of limit structures, the connection stability between the electrical device and the mounting base is improved.

[0021] In an optional embodiment, a buffer pad is provided between the movable rod and the electrical device, a first heat dissipation hole is formed through the movable rod, and a second heat dissipation hole is provided at a position of the buffer pad corresponding to the first heat dissipation hole;

[0022] And / or, a buffer pad is provided between the first pressing block and the electrical equipment;

[0023] And / or, a buffer pad is provided between the mounting base and the electrical equipment.

[0024] Beneficial effect: By arranging a buffer pad between the movable rod and the electrical equipment, and / or between the first pressure block and the electrical equipment, and / or between the mounting seat and the electrical equipment, the electrical equipment is protected and prevented from being damaged by collision with its surrounding structures, which is conducive to further achieving a shock-absorbing effect.

[0025] In an optional embodiment, a ventilation hole is opened on the side wall of the box body, and a fan is arranged at a position of the side wall of the box body corresponding to the ventilation hole, and the fan is suitable for directing airflow toward the electrical equipment.

[0026] Beneficial effect: By arranging a fan on the box body to dissipate heat for the electrical equipment, the performance of the electrical equipment can be prevented from being reduced or even damaged due to overheating, which is beneficial to extending the service life of the electrical equipment.

[0027] In a second aspect, the utility model further provides a transformer, comprising:

[0028] Transformer body;

[0029] In the above-mentioned protection device, the transformer body is installed inside the protection device.

[0030] Because the transformer includes a protection device, it has the same effect as the protection device, and its beneficial effects are not repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a cross-sectional schematic diagram of the protective device and electrical equipment of the utility model;

[0033] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0034] Figure 3 for Figure 1 A partial enlarged view of point B in the middle.

[0035] Description of reference numerals:

[0036] 1. Box body; 2. Electrical equipment; 3. Mounting seat; 4. Limiting structure; 41. Movable rod; 42. First pressure block; 43. Second pressure block; 44. Second elastic member; 5. Sleeve; 6. Fixed rod; 7. First elastic member; 8. Energy absorption assembly; 81. Connecting rod; 82. Pressure ball; 83. Third elastic member; 9. Buffer pad; 10. First heat dissipation hole; 11. Second heat dissipation hole; 12. Receiver; 13. Fan; 14. Protection frame; 15. Movable plate; 16. Articulated seat; 17. Filter cotton; 18. Heat dissipation plate; 19. Through hole. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] Combine the following Figures 1 to 3 , describing an embodiment of the utility model.

[0042] According to an embodiment of the present utility model, on the one hand, a protective device is provided, comprising:

[0043] The box body 1 has a cavity inside, and the cavity is suitable for accommodating the electrical device 2;

[0044] The mounting seat 3 is arranged in the cavity and elastically connected to the box body 1, and the main plane of the mounting seat 3 abuts against the electrical device 2 to be suitable for supporting the electrical device 2;

[0045] The limiting structure 4 is connected to the mounting seat 3 , and is suitable for limiting the electrical device 2 so that the electrical device 2 and the mounting seat 3 are fixedly connected.

[0046] The protective device provided in this embodiment has a shock-absorbing effect on the electrical equipment 2 by providing a mounting base 3 elastically connected to the box body 1 inside the box body 1, and a limiting structure 4 is used to fix the electrical equipment 2 and the mounting base 3, thereby preventing the electrical equipment 2 from being damaged or affecting its performance due to vibration.

[0047] Specifically, the box body 1 is wrapped around the outside of the electrical device 2 to isolate the electrical device 2 from the external environment, prevent other external structures from colliding with the electrical device 2 and damaging the electrical device 2, and prevent dust from falling on the electrical device 2, thereby protecting the electrical device 2. The mounting seat 3 is arranged in the horizontal direction, and the electrical device 2 is arranged on the upper end surface of the mounting seat 3 along the gravity direction. The limiting structure 4 is suitable for limiting the relative displacement between the electrical device 2 and the mounting seat 3, so that the electrical device 2 and the mounting seat 3 are fixedly connected. When the electrical device 2 is working, it drives the mounting seat 3 to vibrate together, and the mounting seat 3 is elastically connected to the box body 1 to reduce the shock of the electrical device 2.

[0048] In some embodiments, in combination Figure 1 and Figure 2 As shown, the mounting seat 3 is fixedly connected with a sleeve 5 on the main plane facing away from the electrical equipment 2, and a fixing rod 6 is fixedly connected with the position of the inner wall of the box body 1 corresponding to the sleeve 5. The end of the fixing rod 6 close to the mounting seat 3 is inserted into the sleeve 5 and elastically connected to the sleeve 5.

[0049] The protective device provided in this embodiment is arranged in the sleeve 5 through one end of the fixing rod 6 and is elastically connected to the sleeve 5, so as to be suitable for limiting the displacement direction of the mounting seat 3, thereby facilitating improving the overall connection stability of the device, and absorbing the mechanical energy generated by the vibration of the electrical equipment 2 through the friction between the fixing rod 6 and the sleeve 5, thereby playing a shock-absorbing role on the mounting seat 3 and the electrical equipment 2.

[0050] Specifically, the axis of the sleeve 5 is set at an angle with the main plane of the mounting seat 3, the axis of the fixing rod 6 coincides with the axis of the sleeve 5, and along the direction perpendicular to the axis of the sleeve 5, the inner diameter of the sleeve 5 is adapted to the outer diameter of the fixing rod 6, so that one end of the fixing rod 6 is inserted into the sleeve 5, and there is friction between the outer peripheral wall of the fixing rod 6 and the inner peripheral wall of the sleeve 5, which is conducive to absorbing the mechanical energy generated by the vibration of the electrical device 2, and then plays a shock-absorbing role on the mounting seat 3 and the electrical device 2. During the operation of the electrical device 2, at least part of one end of the fixing rod 6 is inserted into the sleeve 5 and is slidably connected to the sleeve 5, and a receiving seat 12 is fixedly connected to the position of the other end of the fixing rod 6 on the inner wall of the box body 1, and the receiving seat 12 is fixedly connected to the box body 1 and the fixing rod 6 at the same time, so as to be suitable for supporting the fixing rod 6. The sleeve 5 is suitable for moving along the extension direction of the fixing rod 6, thereby limiting the displacement direction of the mounting seat 3 and improving the overall connection stability of the protective device. Preferably, the axis of the sleeve 5 is perpendicular to the main plane of the mounting seat 3 .

[0051] In some embodiments, in combination Figure 1 and Figure 2 As shown, a first elastic member 7 is provided between the inner wall of the sleeve 5 close to the mounting seat 3 and the fixing rod 6 , and the first elastic member 7 is suitable for forming an elastic connection between the fixing rod 6 and the sleeve 5 .

[0052] The protective device provided in this embodiment provides a first elastic member 7 between the fixing rod 6 and the inner wall of the sleeve 5 so that the mounting base 3 and the box body 1 are elastically connected, thereby facilitating a shock-absorbing effect on the electrical equipment 2 installed on the mounting base 3, thereby preventing the electrical equipment 2 from being damaged or affecting its performance due to vibration.

[0053] Specifically, one end of the fixed rod 6 extending into the sleeve 5 is fixedly connected with the movable plate 15. Preferably, the plane where the movable plate 15 is located is perpendicular to the axis of the sleeve 5, and the outer peripheral wall of the movable plate 15 is adapted to the inner peripheral wall size of the sleeve 5. The first elastic member 7 includes a spring, a rubber block, and an airbag. One end of the first elastic member 7 is fixedly connected to the inner wall of the sleeve 5 close to the mounting seat 3, and the other end is fixedly connected to the side of the movable plate 15 close to the mounting seat 3. The fixed rod 6 is suitable for forming an elastic connection with the sleeve 5 via the first elastic member 7. Since the fixed rod 6 is fixedly connected to the inner wall of the box body 1, the sleeve 5 is fixedly connected to the mounting seat 3, so that the mounting seat 3 is elastically connected to the box body 1 via the first elastic member 7, and the mechanical energy generated by the vibration of the electrical device 2 is partially converted into the elastic potential energy of the first elastic member 7, thereby playing a shock-absorbing role on the electrical device 2.

[0054] In some embodiments, in combination Figure 1 and Figure 2As shown, an energy absorbing assembly 8 is arranged between the main plane of the mounting base 3 facing away from the electrical equipment 2 and the inner wall of the box body 1 , and the energy absorbing assembly 8 is suitable for reducing the vibration of the mounting base 3 .

[0055] The protective device provided in this embodiment further reduces the vibration of the mounting base 3 by disposing an energy absorbing component 8 between the mounting base 3 and the inner wall of the box body 1 , thereby facilitating improving the shock absorbing effect of the protective device on the electrical equipment 2 .

[0056] In some embodiments, in combination Figure 1 and Figure 2 As shown, the energy absorbing assembly 8 includes a symmetrically arranged connecting rod 81, a first end of the connecting rod 81 is hinged to the mounting seat 3, and a second end is abutted against the inner wall of the box body 1; the energy absorbing assembly 8 also includes a third elastic member 83, and both ends of the third elastic member 83 are respectively fixedly connected to the second end of the connecting rod 81.

[0057] The protective device provided in this embodiment is configured with a third elastic member 83 between the second ends of the two connecting rods 81 so as to convert the vibration force of the mounting base 3 into the elastic force of the third elastic member 83 , thereby facilitating further improving the shock absorbing effect of the protective device on the electrical equipment 2 .

[0058] Specifically, the mounting seat 3 is fixedly connected with an articulated seat 16 on the main plane facing away from the electrical device 2, the number of the articulated seats 16 matches the number of the connecting rods 81, the first end of the connecting rod 81 is hinged with the articulated seat 16, and the second end of the connecting rod 81 is fixedly connected with a pressure ball 82, the outer surface of the pressure ball 82 abuts against the inner wall of the box body 1, and is suitable for relative sliding relative to the inner wall of the box body 1. A third elastic member 83 is arranged between two adjacent pressure balls 82, and the third elastic member 83 includes a spring, a rubber block, and an airbag, wherein the two ends of the third elastic member 83 are respectively fixedly connected to the two pressure balls 82. When the electrical device 2 vibrates, the third elastic member 83 is compressed or stretched, the elastic potential energy increases, and the friction generated by the relative sliding of the pressure ball 82 and the inner wall of the box body 1 is used to absorb the mechanical energy generated by the vibration of the mounting seat 3 and the electrical device 2, thereby further reducing the vibration of the mounting seat 3 and the electrical device 2.

[0059] In some embodiments, in combination Figure 1 and Figure 2 As shown, the limiting structure 4 includes a movable rod 41 arranged at an angle to the main plane of the mounting seat 3, the first end of the movable rod 41 is fixedly connected to a first pressure block 42, and the first pressure block 42 abuts against the side of the electrical equipment 2 away from the mounting seat 3; the second end of the movable rod 41 passes through the mounting seat 3 and is fixedly connected to a second pressure block 43, and a second elastic member 44 is arranged between the second pressure block 43 and the mounting seat 3, and the second elastic member 44 is suitable for making the movable rod 41 have a movement tendency to drive the first pressure block 42 to approach the mounting seat 3.

[0060] The protective device provided in this embodiment abuts against the electrical device 2 through the first pressure block 42, and enables the movable rod 41 to have a movement tendency to drive the first pressure block 42 to approach the mounting seat 3 through the second elastic member 44, thereby facilitating the disassembly and assembly of the electrical device 2 and the mounting seat 3, thereby simplifying the installation process of the electrical device 2.

[0061] Specifically, a through hole 19 is formed through the mounting seat 3 at a position corresponding to the movable rod 41, and the inner diameter of the through hole 19 is matched with the outer diameter of the movable rod 41. Along the extension direction of the movable rod 41, at least part of the projection of the first pressing block 42 exceeds the projection range of the movable rod 41, and at least part of the projection of the second pressing block 43 exceeds the projection range of the movable rod 41. The first pressing block 42 is located at an end of the movable rod 41 away from the mounting seat 3, and the side of the first pressing block 42 close to the mounting seat 3 abuts against the side of the electrical device 2 away from the mounting seat 3, so as to be suitable for pressing the electrical device 2 onto the mounting seat 3, thereby forming a fixed connection between the electrical device 2 and the mounting seat 3. The second elastic member 44 includes a spring, a rubber block, and an airbag. Preferably, the second elastic member 44 surrounds the movable rod 41 device, and one end of the second elastic member 44 is fixedly connected to the side of the second pressure block 43 close to the mounting seat 3, and the other end is fixedly connected to the main plane of the mounting seat 3 away from the electrical device 2, and the second elastic member 44 is in a compressed state, suitable for pushing the second pressure block 43 to move in a direction away from the electrical device 2, so that the first pressure block 42 and the electrical device 2 are pressed tightly. When installing the electrical device 2, an external force is applied to the movable rod 41 to move the first pressure block 42 in a direction away from the mounting seat 3, and the electrical device 2 is placed between the first pressure block 42 and the mounting seat 3. At this time, the external force is removed, and the second pressure block 43, under the elastic force of the second elastic member 44, drives the first pressure block 42 to press the electrical device 2 via the movable rod 41, thereby realizing the rapid installation of the electrical device 2. When disassembling the electrical device 2, external force is applied to the movable rod 41 to move the first pressing block 42 in a direction away from the mounting seat 3. At this time, the electrical device 2 is taken out, and the external force is removed after the electrical device 2 is taken out, thereby realizing the disassembly of the electrical device 2, thereby realizing the rapid disassembly of the electrical device 2.

[0062] In some embodiments, in combination Figure 1 As shown, the number of the limiting structures 4 includes at least two, and the size between the plurality of movable rods 41 is adapted to the size of the electrical device 2 .

[0063] The protection device provided in this embodiment is beneficial to improving the connection stability between the electrical device 2 and the mounting base 3 by providing a plurality of limiting structures 4 .

[0064] Preferably, a plurality of limiting structures 4 are equidistantly distributed, wherein the first pressure block 42 is suitable for limiting the side of the electrical device 2 away from the mounting seat 3, and the movable rod 41 is suitable for limiting the side of the electrical device 2 perpendicular to the main plane of the mounting seat 3, thereby improving the abutment stability between the electrical device 2 and the mounting seat 3 by setting a plurality of limiting structures 4.

[0065] In some embodiments, in combination Figure 1 and Figure 3 As shown, a buffer pad 9 is arranged between the movable rod 41 and the electrical device 2, a first heat dissipation hole 10 is formed through the movable rod 41, and a second heat dissipation hole 11 is opened at a position of the buffer pad 9 corresponding to the first heat dissipation hole 10;

[0066] And / or, a buffer pad 9 is provided between the first pressing block 42 and the electrical device 2;

[0067] And / or, a buffer pad 9 is provided between the mounting base 3 and the electrical device 2 .

[0068] The protective device provided in this embodiment protects the electrical equipment 2 by arranging a buffer pad 9 between the movable rod 41 and the electrical equipment 2, and / or between the first pressure block 42 and the electrical equipment 2, and / or between the mounting seat 3 and the electrical equipment 2, so as to prevent the electrical equipment 2 from colliding with its surrounding structures and being damaged, and to further play a shock-absorbing role.

[0069] Specifically, the buffer pad 9 includes a rubber pad, an air pad, and a silicone pad. The buffer pad 9 is fixedly connected between the movable rod 41 and the electrical device 2. The buffer pad 9 is bonded or bound to the movable rod 41. The size of the buffer pad 9 is adapted to the side size of the electrical device 2 close to the movable rod 41, and a first heat dissipation hole 10 and a second heat dissipation hole 11 are opened on the movable rod 41 and the buffer pad 9, wherein the number of the first heat dissipation hole 10 and the second heat dissipation hole 11 is greater than one, so as to facilitate the heat dissipation inside the electrical device 2 and prevent the electrical device 2 from overheating;

[0070] And / or, a buffer pad 9 is provided between the first pressing block 42 and the electrical device 2, the buffer pad 9 is bonded or bound to the first pressing block 42, and the size of the buffer pad 9 is adapted to the side size of the first pressing block 42 close to the electrical device 2;

[0071] And / or, a buffer pad 9 is provided between the mounting seat 3 and the electrical device 2 , the buffer pad 9 is bonded or bound to the mounting seat 3 , and the size of the buffer pad 9 is adapted to the side size of the electrical device 2 close to the mounting seat 3 .

[0072] In some embodiments, in combination Figure 1 As shown, a vent is opened on the side wall of the box body 1 , and a fan 13 is arranged at a position of the side wall of the box body 1 corresponding to the vent. The fan 13 is suitable for directing airflow to the electrical device 2 .

[0073] The protective device provided in this embodiment dissipates heat from the electrical device 2 by arranging a fan 13 on the box body 1, thereby preventing the electrical device 2 from reducing its performance or even being damaged due to overheating, which is beneficial to extending the service life of the electrical device 2.

[0074] Specifically, at least one vent is provided on the side wall of the box body 1 at a position corresponding to the electrical device 2. The fan 13 is arranged at one of the vents and connected to the side wall of the box body 1. The fan 13 is adapted to rotate to drive the airflow to flow through the electrical device 2, thereby cooling and dissipating the heat of the electrical device 2. A protective frame 14 is provided on the outside of the fan 13 and is fixedly connected to the box body 1. The protective frame 14 is adapted to prevent the blades of the fan 13 from colliding with other structures. A heat sink 18 is fixedly connected to the vent. The heat sink 18 has a plurality of through holes. The through holes allow the cold air outside the box body 1 to enter the inside of the box body 1 and allow the hot air inside the box body 1 to flow out of the box body 1. The heat sink 18 also has a cavity inside. The cavity of the heat sink 18 is filled with filter cotton 17. The filter cotton 17 is adapted to prevent dust from entering the inside of the box body 1, thereby protecting the electrical device 2 inside the box body 1.

[0075] According to an embodiment of the present utility model, on the other hand, a transformer is provided, comprising:

[0076] Transformer body;

[0077] In the above-mentioned protection device, the transformer body is installed inside the protection device.

[0078] The electrical equipment 2 is constructed as a transformer body, which is placed on a mounting seat 3, and a limiting structure 4 is used to form a fixed connection between the transformer body and the mounting seat 3, and the mounting seat 3 is elastically connected to the box body 1, so as to reduce the vibration of the transformer body; the limiting structure 4 limits the position of the transformer body, so as to facilitate the rapid disassembly and assembly of the transformer body; a buffer pad 9 is provided between the protective device and the transformer body, so as to prevent the transformer body from being damaged due to vibration; a fan 13 is provided on the box body 1, so as to dissipate heat and cool the transformer body; a heat sink 18 with filter cotton 17 is provided at the vent to prevent dust from entering the inside of the box body 1, which is beneficial to protecting the transformer body.

[0079] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. Although the embodiments of the present utility model are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations are all within the scope defined by the present utility model.

Claims

1. A protective device, characterized in that: include: A box (1) having a cavity therein, wherein the cavity is suitable for accommodating an electrical device (2); A mounting seat (3) is arranged in the cavity and elastically connected to the box body (1), and a main plane of the mounting seat (3) abuts against the electrical device (2) so as to be suitable for supporting the electrical device (2); A limiting structure (4) is connected to the mounting seat (3), and the limiting structure (4) is suitable for limiting the electrical device (2) so that the electrical device (2) and the mounting seat (3) are fixedly connected.

2. The protective device according to claim 1, characterized in that: The mounting seat (3) is fixedly connected to a sleeve (5) at a position opposite to the main plane of the electrical device (2); a fixing rod (6) is fixedly connected to the inner wall of the box body (1) at a position corresponding to the sleeve (5); one end of the fixing rod (6) close to the mounting seat (3) is inserted into the sleeve (5) and is elastically connected to the sleeve (5).

3. The protective device according to claim 2, characterized in that: A first elastic member (7) is provided between the inner wall of the sleeve (5) close to the mounting seat (3) and the fixing rod (6), and the first elastic member (7) is suitable for enabling the fixing rod (6) to form an elastic connection with the sleeve (5).

4. The protection device according to claim 2, characterized in that: An energy absorbing component (8) is arranged between the main plane of the mounting seat (3) facing away from the electrical equipment (2) and the inner wall of the box body (1), and the energy absorbing component (8) is suitable for reducing the vibration of the mounting seat (3).

5. The protection device according to claim 4, characterized in that: The energy absorbing assembly (8) comprises a symmetrically arranged connecting rod (81), wherein a first end of the connecting rod (81) is hinged to the mounting seat (3), and a second end is abutted against an inner wall of the box body (1); the energy absorbing assembly (8) further comprises a third elastic member (83), wherein both ends of the third elastic member (83) are respectively fixedly connected to the second end of the connecting rod (81).

6. The protection device according to claim 1, characterized in that: The limiting structure (4) comprises a movable rod (41) arranged at an angle to a main plane of the mounting seat (3); a first end of the movable rod (41) is fixedly connected to a first pressure block (42), and the first pressure block (42) abuts against a side of the electrical device (2) away from the mounting seat (3); a second end of the movable rod (41) passes through the mounting seat (3) and is fixedly connected to a second pressure block (43), and a second elastic member (44) is arranged between the second pressure block (43) and the mounting seat (3), and the second elastic member (44) is suitable for enabling the movable rod (41) to have a movement tendency to drive the first pressure block (42) to approach the mounting seat (3).

7. The protection device according to claim 6, characterized in that: The number of the limiting structures (4) includes at least two, and the size between the plurality of movable rods (41) is adapted to the size of the electrical device (2).

8. The protection device according to claim 6, characterized in that: A buffer pad (9) is provided between the movable rod (41) and the electrical device (2); a first heat dissipation hole (10) is formed through the movable rod (41); and a second heat dissipation hole (11) is provided on the buffer pad (9) at a position corresponding to the first heat dissipation hole (10); And / or, a buffer pad (9) is provided between the first pressing block (42) and the electrical device (2); And / or, a buffer pad (9) is provided between the mounting seat (3) and the electrical device (2).

9. The protection device according to any one of claims 1 to 8, characterized in that: A vent is provided on the side wall of the box body (1), and a fan (13) is arranged at a position on the side wall of the box body (1) corresponding to the vent. The fan (13) is suitable for directing airflow toward the electrical device (2).

10. A transformer, characterized in that: include: Transformer body; The protective device according to any one of claims 1 to 9, wherein the transformer body is installed inside the protective device.

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