Low-noise industrial special isolation DC power supply

Abstract

The utility model relates to the technical field of isolation DC power supplies, and discloses a low-noise industrial special isolation DC power supply, which comprises a shell and a sound absorption mechanism, two sides of the shell are movably connected with connecting plates, the inner side of the shell is movably connected with the sound absorption mechanism, and the sound absorption mechanism comprises a sound insulation felt. The bottom and one side of the deadening felt are of a through structure, the inner wall of the deadening felt is movably connected with a supporting grid, the section of the supporting grid is in a T shape, the supporting grid is of an inwards-concave structure, the interior of the supporting grid is movably connected with sound-absorbing cotton, and the sound-absorbing cotton and the inwards-concave grid are matched with each other to form a wrapping structure. Energy of noise sound waves is absorbed through the porous structure of the sound absorption cotton, reflection and propagation of sound are reduced, meanwhile, noise is converted into heat energy through internal reflection after being absorbed by the sound absorption cotton, the heat energy is dissipated to the shell through the sound insulation felt for heat dissipation, and the noise reduction effect can be improved through the shell and the sound absorption mechanism.

Description

Technical Field

[0001] This utility model relates to the field of isolated DC power supply technology, and more specifically to a low-noise industrial-grade isolated DC power supply. Background Technology

[0002] An isolated DC power supply is a power supply device that uses isolation devices such as transformers to electrically isolate the input DC power supply from the output DC power supply. It can step down or step up various voltages to the required voltage through a transformer and then use it to power a load. Depending on the isolation method and circuit structure, isolated DC power supplies can be divided into various types, such as single-ended forward converter, single-ended flyback converter, push-pull converter, and half-bridge converter. Isolated DC power supplies are widely used in various electronic devices, such as computers, communication equipment, industrial control equipment, medical equipment, and instruments. Especially in applications that require high reliability, high safety, and stable output voltage, isolated DC power supplies are an indispensable and important component.

[0003] Most industrial DC power supplies on the market currently use similar methods to reduce noise, generally by optimizing the internal structure design or by shielding with an outer shell. However, the internal structure will age over time, resulting in a significant reduction in noise reduction, while the shielding effect of the outer shell is not ideal. Furthermore, the shielding of the outer shell mainly relies on reflection as a shielding mechanism, which has a poor shielding effect at the connection points of the outer shell, making it unsuitable for use. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a low-noise industrial-specific isolated DC power supply to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a low-noise industrial-grade isolated DC power supply, comprising a housing and a sound-absorbing mechanism. Connecting plates are movably connected to both sides of the housing, and a sound-absorbing mechanism is movably connected to the inner side of the housing. The sound-absorbing mechanism includes a sound-insulating felt, the bottom and one side of which are through-hole structures. A supporting mesh is movably connected to the inner wall of the sound-insulating felt. The cross-sectional shape of the supporting mesh is T-shaped, and the mesh of the supporting mesh is a concave structure. Sound-absorbing cotton is movably connected inside the mesh of the supporting mesh. The sound-absorbing cotton and the concave mesh are mutually adapted to form a wrapping structure.

[0006] Furthermore, the outer casing includes a housing, the top and front and back of the housing are provided with heat dissipation grooves, the center of the front and back of the housing is provided with a connecting groove, and the four corners of both sides of the housing are provided with connecting holes.

[0007] Furthermore, a mounting plate is fixedly connected to the bottom of the front and back sides of the housing, and a base is fixedly connected to the bottom of the mounting plate by fixing bolts. The power supply body is fixedly connected to the top center of the base.

[0008] Furthermore, a lead plug is fixedly connected to the other side of the power supply body, and a through hole is provided on the side of the connecting plate on the other side of the housing, the through hole being compatible with the outer diameter of the lead plug.

[0009] Furthermore, the connecting plate includes a plate body, and fastening bolts are fixedly connected to the four corners of the side of the plate body, and the connecting holes are compatible with the fastening bolts of the connecting plate.

[0010] Furthermore, the sound-absorbing cotton is made of a porous, soft, and heat-resistant material, the support mesh is evenly distributed, and the support mesh on the top of the inner sidewall of the sound insulation felt is perpendicular to the support mesh on the inner sidewall and is fixedly connected to each other.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model incorporates a sound-absorbing mechanism that uses the porous structure of sound-absorbing cotton to absorb the energy of noise waves, reducing sound reflection and propagation. Simultaneously, the sound-absorbing cotton absorbs noise and converts it into heat energy through internal reflection, which is then dissipated onto the shell through the sound insulation felt for heat dissipation. The heat dissipation grooves increase the contact area with the outside environment, enhancing the heat dissipation effect. This is beneficial for improving the noise reduction effect through the shell and the sound-absorbing mechanism, while also solving the problem of poor noise reduction effect at the shell connection.

[0013] 2. This utility model features a support grid, through which sound-absorbing cotton is fixed. The soft material of the sound-absorbing cotton makes it easy to insert into the concave grid, facilitating quick fixing and removal of the sound-absorbing cotton for cleaning. This prevents the sound-absorbing cotton from being clogged with dust and reducing its sound absorption effect over long-term use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the connecting plate and lead plug of this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the outer shell of this utility model.

[0017] Figure 4 This is a schematic diagram of the sound-absorbing mechanism of this utility model.

[0018] Figure 5 This is a cross-sectional structural diagram of the supporting mesh and sound-absorbing cotton of this utility model.

[0019] The attached figures are labeled as follows: 1. Outer shell; 101. Housing; 102. Heat dissipation groove; 103. Connecting groove; 104. Connecting hole; 105. Base; 106. Power supply body; 107. Lead plug; 2. Connecting plate; 201. Plate body; 202. Fastening bolt; 3. Sound absorption mechanism; 301. Sound insulation felt; 302. Supporting mesh; 303. Sound absorption cotton. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The low-noise industrial-grade isolated DC power supply involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Reference Figures 1-5 This utility model provides a low-noise industrial-grade isolated DC power supply, including a housing 1 and a sound-absorbing mechanism 3. Connecting plates 2 are movably connected to both sides of the housing 1, and the sound-absorbing mechanism 3 is movably connected to the inner side of the housing 1. The sound-absorbing mechanism 3 includes a sound-absorbing felt 301, the bottom and one side of which are through-type. A supporting mesh 302 is movably connected to the inner wall of the sound-absorbing felt 301. The supporting mesh 302 has a T-shaped cross-section and a concave structure. The mesh of the supporting mesh 302 is movably connected to... The sound-absorbing cotton 303 and the concave mesh are adapted to each other to form a wrapping structure. The porous structure of the sound-absorbing cotton 303 absorbs the energy of noise sound waves, reducing the reflection and propagation of sound. At the same time, after absorbing noise, the sound-absorbing cotton 303 converts it into heat energy through internal reflection, and dissipates it to the shell 101 through the sound insulation felt 301 for heat dissipation. The heat dissipation groove 102 increases the contact area with the outside and enhances the heat dissipation effect. This helps to improve the noise reduction effect through the shell 1 and the sound-absorbing mechanism 3, and at the same time solves the problem of poor noise reduction effect at the connection of the shell 1.

[0022] In a preferred embodiment, the outer casing 1 includes a housing 101, with heat dissipation grooves 102 on the top and front and back sides of the housing 101, a connecting groove 103 in the middle of the front and back sides of the housing 101, and connecting holes 104 at the four corners on both sides of the housing 101.

[0023] In a preferred embodiment, a mounting plate is fixedly connected to the bottom of the front and back sides of the housing 101, and a base 105 is fixedly connected to the bottom of the mounting plate by fixing bolts. A power supply body 106 is fixedly connected to the top center of the base 105.

[0024] In a preferred embodiment, a lead plug 107 is fixedly connected to the other side of the power supply body 106, and a through hole is provided on the side of the connecting plate 2 on the other side of the housing 1. The through hole is adapted to the outer diameter of the lead plug 107.

[0025] In a preferred embodiment, the connecting plate 2 includes a plate body 201, with fastening bolts 202 fixedly connected to the four corners of the side of the plate body 201. The connecting holes 104 are adapted to the fastening bolts 202 of the connecting plate 2. A support grid 302 is fixedly connected to the side of the plate body 201 near the inside of the housing 101, and the support grid 302 is movably connected to the support grid 302 inside the sound insulation felt 301.

[0026] In a preferred embodiment, the sound-absorbing cotton 303 is made of a porous, soft, and heat-resistant material. The mesh of the support grid 302 is evenly distributed. The support grid 302 on the top of the inner sidewall of the sound insulation felt 301 is perpendicular to each other and is fixedly connected to each other. The sound-absorbing cotton 303 is fixed by the concave mesh of the support grid 302. The soft material of the sound-absorbing cotton 303 makes it easy to insert into the concave mesh, which is conducive to quick fixing and removal of the sound-absorbing cotton 303 for cleaning, and prevents the sound-absorbing cotton 303 from being blocked by dust and reducing the sound absorption effect after long-term use.

[0027] The working principle of this utility model:

[0028] During installation, the power supply body 106 is fixedly connected to the top center of the base 105, the sound absorption mechanism 3 is fixed to the outside of the power supply body 106, the outer shell 1 is fixed to the outside of the sound absorption mechanism 3, and the mounting plate of the outer shell 1 is fixed to the base 105 by fixing bolts. The connecting hole 104 is adapted to the fastening bolt 202, and the through hole of the connecting plate 2 is adapted to the outer diameter of the lead plug 107, so that the connecting plate 2 and the outer shell 1 are fixedly connected.

[0029] In use, the porous structure of the sound-absorbing cotton 303 absorbs the energy of noise sound waves, reducing sound reflection and propagation. At the same time, after absorbing noise, the sound-absorbing cotton 303 converts it into heat energy through internal reflection, which is then dissipated onto the housing 101 through the sound insulation felt 301 for heat dissipation. The heat dissipation groove 102 increases the contact area with the outside world, enhancing the heat dissipation effect. This helps to improve the noise reduction effect through the housing 1 and the sound-absorbing mechanism 3, while also solving the problem of poor noise reduction effect at the connection of the housing 1. The sound-absorbing cotton 303 is fixed by the concave mesh of the support grid 302. The soft material of the sound-absorbing cotton 303 makes it easy to insert into the concave mesh, which facilitates quick fixing and removal of the sound-absorbing cotton 303 for cleaning, preventing the sound-absorbing cotton 303 from being clogged by dust and reducing the sound absorption effect after long-term use.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low noise, isolated DC power supply for industrial use, comprising a housing (1) and a sound absorbing means (3), characterized in that: The both sides of the shell (1) are movably connected with connecting plates (2), and the inner side of the shell (1) is movably connected with a sound absorbing mechanism (3), wherein the sound absorbing mechanism (3) comprises sound insulation felt (301), the bottom and one side of the sound insulation felt (301) are of a through structure, the inner wall of the sound insulation felt (301) is movably connected with a supporting grid (302), the cross section of the supporting grid (302) is T-shaped, the grid of the supporting grid (302) is concave, the grid of the supporting grid (302) is movably connected with sound absorbing cotton (303), the sound absorbing cotton (303) is matched with the concave grid, and a wrapping structure is formed.

2. A low noise, isolated DC power supply for industrial use according to claim 1, characterized in that: The shell (1) comprises a shell body (101), the top and the front and back surfaces of the shell body (101) are provided with heat dissipation grooves (102), the front and back surfaces of the shell body (101) are provided with connecting grooves (103) in the middle, and the four corners of the two sides of the shell body (101) are provided with connecting holes (104).

3. A low noise, isolated DC power supply for industrial use according to claim 2, characterized in that: The bottom of the shell body (101) is fixedly connected with a mounting plate, the bottom of the mounting plate is fixedly connected with a base (105) through fixing bolts, and the top of the base (105) is fixedly connected with a power supply body (106).

4. A low noise, isolated DC power supply for industrial use according to claim 3, characterized in that: The other side of the power supply body (106) is fixedly connected with a lead plug (107), the side surface of the connecting plate (2) on the other side of the shell (1) is provided with a through hole, and the through hole is matched with the external diameter of the lead plug (107).

5. A low noise, isolated DC power supply for industrial use according to claim 2, characterized in that: The connecting plate (2) comprises a plate body (201), the four corners of the side edges of the plate body (201) are fixedly connected with fastening bolts (202), and the connecting holes (104) are matched with the fastening bolts (202) of the connecting plate (2).

6. A low noise, isolated DC power supply for industrial use according to claim 1, characterized in that: The sound absorbing cotton (303) is made of porous, soft and heat-resistant material, the grid of the supporting grid (302) is uniformly distributed, the supporting grid (302) on the inner top is vertically distributed with the supporting grid (302) on the inner side wall, and is fixedly connected with each other.

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