CN211294792U - High power density electronic transformer - Google Patents

Abstract

The utility model discloses a high-power density electronic transformer, which comprises a transformer body and a casing. Four groups of shock-absorbing mounting feet are symmetrically fixed on the lower ends of the left and right side walls of the casing at the front and rear sides; A first spring is connected, one end of the four groups of first springs away from the side wall of the inner cavity of the casing is fixedly connected with an extrusion plate, and the transformer body is abutted between the four groups of extrusion plates; the top of the casing is provided with a removable top cover, Several groups of second springs are fixedly connected to the bottom of the top cover, and the bottom of the second springs is fixedly connected to a top plate. The utility model can place transformers of different sizes into the casing, and limit and fix by the extrusion plate and the top plate to avoid shaking. ; At the same time, the casing can be sealed through the top cover to ensure the internal tightness and avoid the problem of damage to the internal transformer caused by collision; and the setting of the shock-absorbing mounting feet can play the role of shock-absorbing and buffering, and further avoid the casing. The problem of transformer damage caused by impact.

Description

A high power density electronic transformer

technical field

The utility model relates to the technical field of electronic transformers, in particular to a high power density electronic transformer.

Background technique

Electronic transformer is an electronic device that converts the alternating voltage of mains into direct current and then forms a high-frequency alternating voltage output through semiconductor switching devices, electronic components and high-frequency transformer windings. A kind of AC-DC-AC inverter circuit. In simple terms, it is mainly composed of a high-frequency transformer core and two or more coils, which do not change their positions. into alternating voltage and current. At the output end of the high-frequency transformer, high-frequency alternating current or direct current of different voltage levels is supplied to one or more than two power circuits.

When the existing electronic transformer is installed, it is easy to be damaged by external force. For example, when the electronic transformer is subjected to external force, if the external force is small, it is easy to cause the electronic transformer to shake, resulting in loosening of the bolts at the installation place. It directly causes the problem of damage to the electronic transformer. Based on this, the present invention designs a high power density electronic transformer to solve the above problems.

Utility model content

The purpose of the present invention is to provide a high power density electronic transformer to solve the above technical problems.

In order to achieve the above purpose, the utility model provides the following technical solutions: a high power density electronic transformer, comprising a transformer body and a casing, and the transformer body is arranged in the inner cavity of the casing, and the lower ends of the left and right side walls of the casing are symmetrical on the front and rear sides. Four sets of shock-absorbing mounting feet are fixed;

The lower ends of the four side walls of the inner cavity of the casing are symmetrically fixed with first springs, and the ends of the four groups of the first springs away from the side walls of the inner cavity of the casing are all fixed with extrusion plates, and the four groups of the extrusion plates are in contact with each other. connected to the transformer body;

The top of the housing is provided with a detachable top cover, the bottom of the top cover is fixed with a plurality of second springs, the bottom of the second springs is fixed with a top plate, and the bottom of the top plate is in contact with the top of the transformer body.

Preferably, the shock-absorbing mounting foot includes a fixing rod and a concave mounting seat, and the opening of the concave mounting seat faces the housing, one end of the fixing rod is fixed on the side wall of the housing, and the top and bottom of the inner cavity of the concave mounting seat are A sliding rod is fixed between them, and the opposite end of one end of the fixed rod is sleeved on the outer wall of the sliding rod and is slidably connected with the sliding rod. The outer wall of the sliding rod is sleeved with two sets of third springs, and the two sets of third springs are respectively Located on the upper and lower sides of the fixing rod, the lower end of the side surface of the concave mounting seat away from the opening is fixedly connected with a mounting block, and the inner cavity of the mounting block is provided with a mounting hole.

Preferably, the top of the casing is provided with a sealing groove, and the bottom of the top cover is fixed with a sealing block that cooperates with the sealing groove.

Preferably, the inner cavity of the four side walls of the casing is provided with several groups of downwardly inclined first heat dissipation holes, and the inner cavity of the top cover is provided with several groups of second heat dissipation holes.

Preferably, a dust-proof net is arranged between the inner cavity side walls of the first heat dissipation hole and the second heat dissipation hole.

Preferably, the top plate is a thermally conductive silica gel plate.

Compared with the prior art, the beneficial effects of the present utility model are:

The utility model is provided with a casing, a top cover, a shock-absorbing mounting foot, a first spring, a pressing plate, a second spring and a top plate, etc., so that transformers of different sizes can be placed in the casing, and the pressing plate and the top plate can be passed through the pressing plate and the top plate. Limit and fix to avoid shaking; at the same time, the casing can be sealed through the top cover to ensure the internal tightness and avoid the problem of damage to the internal transformer caused by collision; and the setting of the shock-absorbing mounting feet can play a role in shock absorption The function of buffering can avoid the problem of bolt loosening at the installation place, thereby further avoiding the damage of the transformer caused by the impact of the casing.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the structural representation of the utility model;

Figure 2 is a schematic structural diagram of a shock-absorbing mounting foot in the utility model;

Fig. 3 is the structural schematic diagram of the housing in the utility model;

4 is a schematic structural diagram of a top cover in the present invention.

In the accompanying drawings, the list of components represented by each number is as follows:

1-Transformer body, 2-Shell, 201-Sealing groove, 202-First cooling hole, 3-Shock-absorbing mounting feet, 301-Fixing rod, 302-Concave mounting seat, 303-Sliding rod, 304-Third spring , 305-installation block, 306-installation hole, 4-first spring, 5-extrusion plate, 6-top cover, 601-sealing block, 602-second cooling hole, 7-second spring, 8-top plate, 9- Dust filter.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-4, the present utility model provides a technical solution: a high power density electronic transformer, comprising a transformer body 1 and a casing 2, and the transformer body 1 is arranged in the inner cavity of the casing 2, and the left and right sides of the casing 2 are Four sets of shock-absorbing mounting feet 3 are fixed symmetrically on the front and rear sides of the lower end of the side wall;

The lower ends of the four side walls of the inner cavity of the casing 2 are symmetrically fixed with the first springs 4, and the ends of the four groups of the first springs 4 away from the side walls of the inner cavity of the casing 2 are fixed with the extrusion plates 5. There is a transformer body 1 in contact therebetween;

The top of the casing 2 is provided with a detachable top cover 6 . The bottom of the top cover 6 is fixed with several groups of second springs 7 . The bottom of the second springs 7 is fixed with a top plate 8 , and the bottom of the top plate 8 is in contact with the top of the transformer body 1 .

Specifically, the shock-absorbing mounting foot 3 includes a fixing rod 301 and a concave mounting seat 302, and the concave mounting seat 302 opens toward the casing 2, one end of the fixing rod 301 is fixed on the side wall of the casing 2, and the top of the inner cavity of the concave mounting seat 302 is A sliding rod 303 is fixedly connected with the bottom, and the opposite end of one end of the fixed rod 301 is sleeved on the outer wall of the sliding rod 303 and is slidably connected with the sliding rod 303. The outer wall of the sliding rod 303 is sleeved with two sets of third springs 304, and The two groups of third springs 304 are located on the upper and lower sides of the fixing rod 301 respectively. A mounting block 305 is fixedly connected to the lower end of the side of the concave mounting seat 302 away from the opening. The mounting block 305 is provided with a mounting hole 306 in the inner cavity. The upper and lower sets of third springs are squeezed by sliding the fixed rod up and down on the sliding rod, so as to absorb the vibration force generated by the casing and prevent the vibration force from being transmitted to the casing and affecting the use of the transformer.

Specifically, the top of the casing 2 is provided with a sealing groove 201, and the bottom of the top cover 6 is fixedly connected with a sealing block 601 that cooperates with the sealing groove 201, so as to improve the sealing between the casing and the top cover. Removable connections can be made through bolt assemblies.

Specifically, several groups of downwardly inclined first heat dissipation holes 202 are opened in the inner cavities of the four side walls of the casing 2, and several groups of second heat dissipation holes 602 are opened in the inner cavity of the top cover 6. By setting the heat dissipation holes, the interior of the casing can be enhanced. The heat dissipation effect can prevent the transformer from overheating in the casing.

Specifically, a dust filter 9 is provided between the inner cavity side walls of the first heat dissipation hole 202 and the second heat dissipation hole 602 , which can prevent dust from entering the housing through the heat dissipation hole under the premise of ensuring heat dissipation.

Specifically, the top plate 8 is a thermally conductive silica gel plate, which improves the heat conduction effect between the top plate and the transformer body, thereby improving the heat dissipation efficiency.

A specific application example of this embodiment is:

The device is a high-power-density electronic transformer. During installation, the high-power-density transformer body 1 is placed between four sets of extrusion plates 5, and the first spring 4 is squeezed so that the first spring 4 is compared with the transformer body. 1 exerts a reaction force so that the transformer body 1 remains stable.

Then, after aligning the sealing block 601 of the top cover 6 with the sealing groove 201, the top cover 6 is installed and fixed through the bolt assembly, and after installation, the bottom of the top plate 8 can press the top of the transformer body 1, and is applied by the second spring 7 reaction force, thereby further ensuring the stability of the installation of the transformer body 1 . Then, the housing 2 is installed and fixed through the mounting block 305 and the mounting holes 306, so that the transformer body 1 is installed in the working position, and several groups of outlet ports can be opened on the housing 2 to facilitate the wiring of the transformer.

When the transformer is subjected to external force, the impact force can be transmitted to the fixed rod 301, and then the third spring 304 is squeezed by the fixed rod 301 sliding up and down on the sliding rod 303, so as to absorb the impact force through the third spring 304 and avoid the shell The body 2 falls off the bolts at the installation place due to the collision, and the housing 2 can also play the role of protecting the transformer to prevent the transformer from being directly affected by external force, while the first heat dissipation holes 201 and the first heat dissipation hole 201 opened on the housing 2 and the top cover 6 The two heat dissipation holes 601 can dissipate heat inside the casing 2 to avoid overheating inside the casing 2 .

In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", " The orientation or positional relationship indicated by "top", "inside", "front", "center", "both ends", etc. is based on the orientation or positional relationship of the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present invention.

In the present utility model, unless otherwise expressly specified and limited, terms such as "installation", "arrangement", "connection", "fixation", "swivel connection" should be understood in a broad sense, for example, it may be a fixed connection, It can also be detachable connection or integrated; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements Unless otherwise clearly defined, those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that The scope is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a high power density electronic transformer, includes transformer body (1) and casing (2), and transformer body (1) sets up at casing (2) inner chamber, its characterized in that: four groups of shock absorption mounting feet (3) are symmetrically and fixedly connected to the front side and the rear side of the lower ends of the left side wall and the right side wall of the shell (2);

first springs (4) are symmetrically and fixedly connected to the lower ends of four side walls of an inner cavity of the shell (2), extrusion plates (5) are fixedly connected to one ends, far away from the side wall of the inner cavity of the shell (2), of the four groups of first springs (4), and a transformer body (1) is abutted between the four groups of extrusion plates (5);

casing (2) top is provided with can dismantle top cap (6), top cap (6) bottom rigid coupling has a plurality of second spring (7) of group, second spring (7) bottom rigid coupling has roof (8), and roof (8) bottom and transformer body (1) top looks butt.

2. A high power density electronic transformer according to claim 1, wherein: shock attenuation installation foot (3) are including dead lever (301) and concave type mount pad (302), and concave type mount pad (302) opening towards casing (2), dead lever (301) one end rigid coupling is on casing (2) lateral wall, the rigid coupling has slide bar (303) between concave type mount pad (302) inner chamber top and the bottom, and the relative other pot head of dead lever (301) one end establish slide bar (303) outer wall and with slide bar (303) sliding connection, slide bar (303) outer wall cover is equipped with two sets of third spring (304), and two sets of third spring (304) are located the upper and lower both sides of dead lever (301) respectively, open-ended side lower extreme rigid coupling is kept away from in concave type mount pad (302) has installation piece (305), mounting hole (306) have been seted up to installation piece (305) inner chamber.

3. A high power density electronic transformer according to claim 1, wherein: seal groove (201) have been seted up at casing (2) top, top cap (6) bottom rigid coupling has and seals the sealed block (601) of groove (201) mutually supporting.

4. A high power density electronic transformer according to claim 1, wherein: a plurality of groups of first heat dissipation holes (202) which are downward inclined are formed in inner cavities of four side walls of the shell (2), and a plurality of groups of second heat dissipation holes (602) are formed in an inner cavity of the top cover (6).

5. A high power density electronic transformer according to claim 4, wherein: and dust screens (9) are arranged between the inner cavity side walls of the first heat dissipation hole (202) and the second heat dissipation hole (602).

6. A high power density electronic transformer according to claim 1, wherein: the top plate (8) is a heat-conducting silica gel plate.

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