Anti-interference transformer rectifier

Abstract

The utility model relates to the technical field of rectifiers, and discloses an anti-interference transformer rectifier, which comprises a rectifier main body, an electromagnetic shielding shell is sleeved outside the rectifier main body, and a plurality of connecting blocks are symmetrically fixed at the bottom end of the rectifier main body and the inner bottom end of the electromagnetic shielding shell. According to the utility model, the outer side of the rectifier main body is sleeved with the electromagnetic shielding shell, and the surface layer of the electromagnetic shielding shell is coated with the conductive coating, so that when collision occurs, the electromagnetic shielding shell can be prevented from being damaged by the conductive coating; vibration in the rectifier body is weakened through the damping structure between the rectifier body and the electromagnetic shielding shell, the influence of the vibration on an internal circuit is reduced, and the problems of output quality and stability of the transformer caused by electromagnetic interference and collision vibration are solved.

Description

Technical Field

[0001] The utility model application relates to the technical field of rectifiers, in particular to an interference-proof transformer rectifier. Background Art

[0002] A transformer-rectifier is a power electronic device whose main function is to convert alternating current into direct current. This device is usually used in applications that require a stable DC power supply, such as in the chemical industry, transportation, and aviation. A transformer-rectifier usually consists of components such as a transformer, a rectifier, and a filter. The transformer is responsible for reducing the input AC voltage to a suitable level, while the rectifier is responsible for converting AC into DC. The filter is used to eliminate the harmonic interference generated by the rectifier to improve the quality of the output DC.

[0003] When dealing with high-intensity electromagnetic interference, the performance stability and output quality of traditional transformer-rectifiers are often seriously affected, which not only limits the application of equipment in complex environments, but also the vibration or collision with other objects during use of the transformer-rectifier may cause damage to the user's equipment. Summary of the invention

[0004] In order to solve the problems of output quality and stability caused by electromagnetic interference and collision vibration on the transformer, the utility model provides an interference-proof transformer rectifier to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An anti-interference transformer rectifier comprises a rectifier body, an electromagnetic shielding shell is sleeved on the outside of the rectifier body, a plurality of connection blocks are symmetrically fixed to the bottom end of the rectifier body and the bottom end of the inside of the electromagnetic shielding shell, the rectifier body corresponds to each connection block on the electromagnetic shielding shell, a second rotating plate is arranged between each two corresponding connection blocks, one end of the second rotating plate is rotatably connected to the connection block, and the other ends of each two corresponding second rotating plates are rotatably connected to a push plate, two sliding rods are symmetrically fixed to one end of the push plate away from the second rotating plate, and the bottom end of the inside of the electromagnetic shielding shell is symmetrically fixed to each other. A plurality of sliding plates are fixed, the sliding rods are slidably connected to the sliding plates, each of the sliding rods is sleeved with a second spring, the electromagnetic shielding shell and the bottom of the rectifier body are fixed with a plurality of fixed blocks, every two corresponding fixed blocks are sleeved with a third spring, the two ends of the third spring are respectively fixed to the bottom of the rectifier body and the bottom of the electromagnetic shielding shell, first rotating plates are arranged on both sides of the electromagnetic shielding shell, one end of each of the first rotating plates is rotatably connected to the electromagnetic shielding shell, and a first spring is directly fixed to the end of the first rotating plate below the electromagnetic shielding shell close to the electromagnetic shielding shell and the electromagnetic shielding shell.

[0007] Furthermore, a heat dissipation port is provided at one end of the rectifier body, and a heat dissipation fan is fixed on one end of the rectifier body near the heat dissipation port.

[0008] Furthermore, a temperature detector is fixed on one end of the heat dissipation fan close to the inside of the rectifier body, and the temperature detector is electrically connected to the heat dissipation fan.

[0009] Furthermore, one end of the first rotating plate close to the rectifier body is provided with an oblique angle, and the other end of the first rotating plate is in contact with the rectifier body.

[0010] Furthermore, the sliding rod is in the shape of a cylinder, the sliding plate is provided with a sliding groove matching the shape of the sliding rod, and the sliding plate is located between the rectifier body and the electromagnetic shielding shell.

[0011] Furthermore, a sponge gasket is provided on the top surface of the rectifier body, and a conductive coating is coated on the outer surface of the electromagnetic shielding shell.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, an electromagnetic shielding shell is sleeved on the outside of the rectifier body, and the surface of the electromagnetic shielding shell is coated with a conductive coating. When a collision occurs, the shock absorbing structure between the rectifier body and the electromagnetic shielding shell weakens the vibration inside the rectifier body, reduces its influence on the internal circuit, and solves the problem of output quality and stability of the transformer caused by electromagnetic interference and collision vibration.

[0014] 2. In the utility model, a cooling fan is installed at the heat dissipation end of the rectifier body, and then the temperature detector is electrically connected to the cooling fan, so that the temperature detector adjusts the speed of the cooling fan according to the temperature inside the rectifier body, thereby realizing efficient and intelligent thermal management, and greatly enhancing the reliability and safety of the transformer rectifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 is a schematic diagram of a three-dimensional structure according to an embodiment of the present application;

[0017] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the structure after opening in the embodiment shown;

[0018] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the structure after opening in the embodiment shown;

[0019] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the heat dissipation structure in the embodiment shown;

[0020] Figure 5 yes Figure 2 A schematic diagram of the three-dimensional structure of a local part A in the embodiment shown.

[0021] The meanings of the reference numerals in the figure are: 1. rectifier body; 2. electromagnetic shielding shell; 3. first rotating plate; 4. first spring; 5. heat dissipation port; 6. cooling fan; 7. temperature detector; 8. connecting block; 9. second rotating plate; 10. push plate; 11. sliding rod; 12. second spring; 13. sliding plate; 14. third spring; 15. fixing block. DETAILED DESCRIPTION

[0022] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A transformer rectifier for preventing interference includes a rectifier body 1, an electromagnetic shielding shell 2 is sleeved on the outside of the rectifier body 1, a plurality of connecting blocks 8 are symmetrically fixed at the bottom end of the rectifier body 1 and the bottom end of the inside of the electromagnetic shielding shell 2, the rectifier body 1 and each connecting block 8 on the electromagnetic shielding shell 2 are in corresponding positions, a second rotating plate 9 is arranged between each two corresponding connecting blocks 8, one end of the second rotating plate 9 is rotatably connected to the connecting block 8, and the other ends of each two corresponding second rotating plates 9 are rotatably connected to a push plate 10, and two sliding rods 11 are symmetrically fixed on one end of the push plate 10 away from the second rotating plate 9, and a plurality of sliding plates 13 are symmetrically fixed at the bottom end of the inside of the electromagnetic shielding shell 2, and the sliding rods 11 It is slidably connected to the sliding plate 13, and each sliding rod 11 is sleeved with a second spring 12. A plurality of fixed blocks 15 are fixed to the bottom of the electromagnetic shielding shell 2 and the rectifier body 1, and a third spring 14 is sleeved on every two corresponding fixed blocks 15. Both ends of the third spring 14 are respectively fixed to the bottom of the rectifier body 1 and the bottom of the electromagnetic shielding shell 2. First rotating plates 3 are arranged on both sides of the inside of the electromagnetic shielding shell 2, and one end of each first rotating plate 3 is rotatably connected to the electromagnetic shielding shell 2. A first spring 4 is directly fixed to the electromagnetic shielding shell 2 at one end of the first rotating plate 3 below the electromagnetic shielding shell 2, so that the rectifier body 1 can avoid equipment damage caused by electromagnetic interference and collision.

[0024] Specifically, an angle is set at one end of the first rotating plate 3 close to the rectifier body 1, and the other end of the first rotating plate 3 fits the rectifier body 1 to improve the shock absorption effect on both sides of the rectifier body 1. The sliding rod 11 is in the shape of a cylinder, and a sliding groove matching the shape of the sliding rod 11 is opened on the sliding plate 13. The sliding plate 13 is located between the rectifier body 1 and the electromagnetic shielding shell 2 to assist the third spring 14 in shock absorption. A sponge gasket is provided on the top surface of the rectifier body 1, and the outer surface of the electromagnetic shielding shell 2 is coated with a conductive coating to improve the anti-interference effect of the electromagnetic shielding shell 2.

[0025] As an optimization solution, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a heat dissipation port 5 is provided at one end of the rectifier body 1 , and a heat dissipation fan 6 is fixed on one end of the rectifier body 1 near the heat dissipation port 5 to improve the heat dissipation efficiency inside the rectifier body 1 .

[0026] Specifically, a temperature detector 7 is fixed to one end of the cooling fan 6 close to the inside of the rectifier body 1 , and the temperature detector 7 is electrically connected to the cooling fan 6 , so that the heat dissipation efficiency inside the rectifier body 1 is adjusted according to the temperature inside the rectifier body 1 .

[0027] Working principle: An electromagnetic shielding shell 2 is sleeved on the outside of the rectifier body 1. When the electromagnetic shielding shell 2 collides, the third spring 14 at the bottom end of the rectifier body 1 and the bottom surface of the electromagnetic shielding shell 2 is forced to shrink and re-set after shock absorption. At the same time, the two connecting blocks 8 are pressed tightly, so that one end of the two second rotating plates 9 rotates on the connecting blocks 8 respectively, so that the second rotating plates 9 move toward the outside of the rectifier body 1, so that the second rotating plates 9 push the push plate 10 to move outward, and at the same time, the sliding rod 11 slides inside the sliding plate 13, and the second spring sleeved on the sliding rod 11 The spring 12 is forced to shrink and return to its original position after shock absorption. When a collision occurs and shaking occurs, one end of the first rotating plate 3 rotates on the electromagnetic shielding shell 2. At the same time, the first spring 4 directly connecting the first rotating plate 3 and the electromagnetic shielding shell 2 is forced to shrink and return to its original position after shock absorption, thereby reducing the vibration of the rectifier body 1. At the same time, the temperature detector 7 detects the temperature inside the rectifier body 1. When the temperature inside the rectifier body 1 is high, the cooling fan 6 is started for heat dissipation. When the temperature inside the rectifier body 1 drops, the temperature detector 7 reduces the rotation speed of the cooling fan 6 to achieve temperature control.

[0028] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0029] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An anti-interference transformer rectifier, comprising a rectifier body (1), characterized in that: The rectifier body (1) is externally sleeved with an electromagnetic shielding shell (2); a plurality of connection blocks (8) are symmetrically fixed to the bottom end of the rectifier body (1) and the bottom end of the inside of the electromagnetic shielding shell (2); the positions of each connection block (8) on the rectifier body (1) and the electromagnetic shielding shell (2) correspond; a second rotating plate (9) is arranged between each two corresponding connection blocks (8); one end of the second rotating plate (9) is rotatably connected to the connection block (8); the other ends of each two corresponding second rotating plates (9) are rotatably connected to a push plate (10); two sliding rods (11) are symmetrically fixed to the end of the push plate (10) away from the second rotating plate (9); a plurality of sliding plates (13) are symmetrically fixed to the bottom end of the inside of the electromagnetic shielding shell (2); The rod (11) is slidably connected to the sliding plate (13), and each of the sliding rods (11) is sleeved with a second spring (12). The electromagnetic shielding shell (2) and the bottom of the rectifier body (1) are both fixed with a plurality of fixed blocks (15), and each of the two corresponding fixed blocks (15) is sleeved with a third spring (14). The two ends of the third spring (14) are respectively fixed to the bottom of the rectifier body (1) and the bottom of the electromagnetic shielding shell (2). The electromagnetic shielding shell (2) is internally provided with a first rotating plate (3) on both sides, and one end of each of the first rotating plates (3) is rotatably connected to the electromagnetic shielding shell (2). A first spring (4) is directly fixed to the electromagnetic shielding shell (2) at one end of the lower side of the first rotating plate (3) close to the electromagnetic shielding shell (2).

2. The anti-interference transformer rectifier according to claim 1, characterized in that: A heat dissipation port (5) is provided at one end of the rectifier body (1), and a heat dissipation fan (6) is fixed on one end of the rectifier body (1) near the heat dissipation port (5).

3. The anti-interference transformer rectifier according to claim 2, characterized in that: A temperature detector (7) is fixed on one end of the heat dissipation fan (6) close to the inside of the rectifier body (1), and the temperature detector (7) is electrically connected to the heat dissipation fan (6).

4. The anti-interference transformer rectifier according to claim 1, characterized in that: One end of the first rotating plate (3) close to the rectifier body (1) is provided with an oblique angle, and the other end of the first rotating plate (3) is in contact with the rectifier body (1).

5. The anti-interference transformer rectifier according to claim 1, characterized in that: The sliding rod (11) is in the shape of a cylinder, the sliding plate (13) is provided with a sliding groove matching the shape of the sliding rod (11), and the sliding plate (13) is located between the rectifier body (1) and the electromagnetic shielding shell (2).

6. The anti-interference transformer rectifier according to claim 1, characterized in that: The top surface of the rectifier body (1) is provided with a sponge gasket, and the outer surface of the electromagnetic shielding shell (2) is coated with a conductive coating.

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