KR101093142B1 - A slim rectifier for outdoor type communication device - Google Patents

Abstract

PURPOSE: A slim type rectifier for outside communications equipment is provided to release a heat which is created in a component element without a separate radiating means such as a cooling pen or a heat exchanger and to improve the lifespan of a product. CONSTITUTION: A metal PCB(Printed Circuit Board)(210) includes the component element of a rectifier(A). The medal PCB guides a heat which is generated in the component element. Housing(100) is formed into an encapsulated type which externally wraps the metal PCB. The housing directly releases the heat which is guided from the medal PCB. A resin PCB(220) electrifies with the metal PCB through a conductive supporting pin(231). A magnetic component and a high radiating component element which includes a switching element and a diode are mounted in the metal PCB. The component element except for the high radiating component element is mounted in the resin PCB.

Description

Slim rectifier for outdoor communication equipment {A Slim Rectifier for Outdoor type Communication Device}

The present invention relates to a rectifier for outdoor communication equipment, and in particular, by allowing the heat generated from the component elements of the rectifier to be directly radiated to the outside directly through the metal PCB and the housing, such as a cooling fan or a heat exchanger. It is possible to dissipate the heat generated from the component elements of the rectifier without a separate heat dissipation means. As a result, the volume of the rectifier is reduced and the weight is light, which makes it suitable for slimming and lightening the product. It relates to a slim rectifier.

In general, outdoor communication equipment such as a repeater or a base station constituting a mobile communication system includes a rectifier that receives commercial AC power from a power distribution device, rectifies it to a DC power, and supplies the power to a repeater or a base station.

In the rectifier for outdoor communication equipment, a high heat generating component such as a transformer, a reactor, a switching device (for example, a MOSFET and a power transistor), a diode, and the like is mounted on an internal printed circuit board.

As a conventional technique for cooling a high heat generating element mounted in the rectifier as described above, a semiconductor element such as a switching element or a diode is radiated using a heat sink, and a cooling fan or a heat exchanger is installed to increase cooling efficiency. There was also.

However, the above conventional technology has the following problems.

First, the heat sink for heat dissipation of semiconductor elements inside the rectifier was not high in heat dissipation efficiency and occupied a large volume. In the case of cooling by employing a cooling fan or a heat exchanger, there was a problem in that the rectifier was large in volume and weighted.

As the weight of the rectifier itself is heavy by installing a separate cooling device or a heat dissipation device as described above, the rectifier should be installed only on the floor, thereby limiting the installation location, and having a poor transport and mobility.

In addition, as the volume of the rectifier increases as described above, the volume proportion of the rectifier occupies the entire outdoor communication equipment is very large, which acts as a factor for determining the overall size of the communication equipment, which is the latest It was against the trend of slimmer and lighter weight.

In addition, there is a problem that the circuit is complicated by generating electrical noise and noise by driving the cooling fan, and an insulated power device for driving the cooling fan.

In addition, since a heat sink, a cooling fan, a heat exchanger, and the like had to be installed inside the rectifier, there was a problem in that the manufacturing cost and maintenance cost of the product increased.

Further, in the case of the conventional rectifier for outdoor communication equipment, the slim rectifier was installed inside the enclosure provided with a door, and thus there was a weakness in security and safety due to easy access to the equipment of outsiders.

The present invention was created to solve the problems of the prior art as described above, the object of the slim rectifier for outdoor communication equipment according to the present invention,

First, the housing itself of the rectifier acts as a heat dissipation means so that the heat generated from the components of the rectifier can be directly radiated to the outside through the metal PCB and the housing. It can dissipate heat generated from the components of the rectifier without the heat dissipation means. As a result, the volume and weight of the rectifier become smaller, which makes the product slimmer and lighter, and at the same time easy to carry and install the product. To do this,

Second, by allowing the heat dissipation without the use of a cooling fan as in the prior art, it is possible to solve the noise generation and circuit complexity problems caused by the adoption of the cooling fan, and to increase the life of the product,

Third, it is not necessary to employ a separate heat dissipation means to enclose the printed circuit board so that it is easy to implement a sealed type,

Fourth, by implementing the housing in a sealed shape that does not require a separate door, there is no need to adopt a separate waterproof means to protect the internal circuit, and to ensure the safety and security by blocking the accessibility of outsiders at the source,

Fifth, the heat radiation fins are installed on the bottom surface of the housing corresponding to the bottom surface on which the metal PCB is installed, so that the heat radiation can be conducted by the shortest heat conduction path, so that the heat radiation can be better.

Sixth, the component elements of the rectifier are classified into two types, namely, high heat generating element and low heat generating element, and the component elements classified into two types on the basis of the heat generation characteristics are respectively classified according to the characteristics of the metal PCB and the metal PCB. By adopting the configuration mounted on the resin PCB provided above, it is possible to reduce the volume of the product while maintaining the heat dissipation of the high heat-generating component element smoothly,

Seventh, outdoor communication that is suitable to make the product slimmer by making the height of the resin PCB lower than the height of the magnetic component by forming a magnetic mounting recess in the resin PCB for protruding the magnetic component upward. To provide a slim rectifier for the equipment.

In the present invention, a slim rectifier for outdoor communication equipment for achieving the above object, in the slim rectifier for outdoor communication equipment; A metal PCB mounting component parts of the rectifier and conducting heat generated from the mounted component elements; In order to protect component elements mounted on the metal PCB, the metal PCB is formed in a hermetically sealed type, and the metal PCB is mounted to be in close contact with the bottom, and directly transfers the heat conducted from the metal PCB to the outside. It is characterized by including a housing for radiating heat.

Slim rectifier for outdoor communication equipment of the present invention, the housing is formed so as to be close to the metal PCB in order to increase the heat radiation efficiency of the heat radiation route radiated heat to the housing via the internal space heat generated from the component elements of the rectifier. It is characterized by.

Slim rectifier for outdoor communication equipment of the present invention is characterized in that the heat radiation fin is projected on the lower surface of the housing in order to increase the heat radiation efficiency of the heat conducted from the metal PCB.

The slim rectifier for outdoor communication equipment of the present invention is supported by a plurality of conductive support pins placed on the metal PCB, spaced upward from the metal PCB, and further includes a resin PCB that energizes the metal PCB through the conductive support pins. Are constructed and

The metal PCB is mounted with a high heat generating component including a magnetic component such as a transformer and a reactor, a switching element and a diode, and the resin PCB is mounted with a component other than the high heat generating component.

In order to install the resin PCB on the metal PCB at a lower height than the magnetic part, a magnetic mounting recess for protruding the magnetic part upward is formed in the resin PCB. It is characterized by.

The slim rectifier for outdoor communication equipment of the present invention having the configuration as described above has the following effects.

First, the housing itself of the rectifier acts as a heat dissipation means so that the heat generated from the components of the rectifier can be directly radiated to the outside through the metal PCB and the housing. It is effective to dissipate heat generated from the components of the rectifier even without the heat dissipation means. As a result, the volume of the rectifier is reduced and the weight is light, making the product slimmer and lighter, and also easy to transport and install. There is a repelling effect.

Second, since it is not necessary to employ a cooling fan as in the prior art, it is possible to solve the noise generation and circuit complexity problems of the prior art according to the adoption of the cooling fan, there is an effect that the life of the product is long.

Third, it is not necessary to employ a separate heat dissipation means, there is an effect that it is easy to implement a sealed type by enclosing the circuit element.

Fourth, by implementing the housing in a sealed shape that does not require a separate door, there is no need to adopt a separate waterproof means to protect the internal circuit, and the effect that can ensure the safety and security by blocking the accessibility of outsiders at the source There is.

Fifth, by installing a heat radiation fin on the bottom surface of the housing corresponding to the bottom surface on which the metal PCB is installed, there is an effect that can be radiated by the shortest heat conduction path, and as a result there is an effect that the heat radiation can be better.

Sixth, the component elements of the rectifier are classified into two types of high heat generating element and low heat generating element, and thus, the component elements classified into two types on the basis of heat generation characteristics are placed on the metal PCB and the metal PCB according to their characteristics. By adopting the configuration mounted on the resin PCB provided, there is an effect that can reduce the volume of the product while maintaining the heat dissipation of the high heat-generating component element smoothly.

Seventh, by forming a magnetic mounting groove in the resin PCB to project the magnetic component upwards, it is possible to lower the height of the resin PCB than the height of the magnetic component to make the product even more slim.

1 is a cross-sectional configuration and enlarged view of main parts of a slim rectifier for outdoor communication equipment according to an embodiment of the present invention.
2 is a plan view of the rectifier PCB module mounted in the housing in the slim rectifier for outdoor communication equipment according to an embodiment of the present invention.
3 is an external perspective view of a slim rectifier for outdoor communication equipment according to an embodiment of the present invention.

Next will be described in detail with reference to the accompanying drawings a preferred embodiment of the present invention slim rectifier for outdoor communication equipment.

As shown in Figures 1 to 3, the slim rectifier (A) for outdoor communication equipment according to an embodiment of the present invention is a metal that mounts the component elements of the rectifier and conducts heat generated from the mounted component elements In order to protect the PCB 210 and the component elements mounted on the metal PCB 210, the metal PCB 210 is formed in a hermetically sealed type and mounted so that the metal PCB 210 is in close contact with the bottom surface 100a. And a housing 100 for directly radiating heat conducted from the metal PCB 210 to the outside in a conduction manner.

According to the configuration as described above, the housing 100 of the rectifier itself serves as a heat dissipation means to heat the heat generated from the component elements of the rectifier directly through the metal PCB 210 and the housing 100 to the outside. Therefore, it is possible to dissipate heat generated in the components of the rectifier without any heat dissipation means such as a cooling fan or a heat exchanger as in the prior art. As a result, the volume and weight of the rectifier are reduced, resulting in a slimmer and lighter product. There is an advantage that can be implemented, and there is also an advantage that the transportation and installation of the product is easy.

In addition, since it is not necessary to employ a cooling fan as in the prior art, it is possible to solve the noise generation and circuit complexity problems of the prior art according to the adoption of the cooling fan, there is an advantage that the life of the product is long.

In addition, since the rectifier A according to the present invention does not need to employ a separate heat dissipation means, it is easy to enclose a circuit element and implement it in a sealed type.

Furthermore, in the rectifier according to the present invention, since the housing 100 is implemented in a hermetic shape without a separate door, there is no need to employ a separate waterproof means for protecting the internal circuit, and the accessibility of the outsider is fundamentally blocked. Therefore, there is an advantage to ensure safety and security.

In addition, the housing 100 is preferably a metallic material (eg, aluminum) having high thermal conductivity. This is because the heat dissipation efficiency is increased.

Looking at the configuration of the metal PCB 210 is mounted on the housing 100, the mounting nut 232 is installed on the metal PCB 210 and the mounting hole 232 to the metal PCB 210 corresponding to the bolt hole ( It may be mounted by tightening bolts (not shown) after forming (not shown).

In the slim rectifier (A) for outdoor communication equipment according to an embodiment of the present invention, a thermally conductive silicone grease (not shown) is coated between the metal PCB 210 and the bottom surface 100a of the housing. It is done.

Even though the metal PCB 210 is closely attached to the housing bottom surface 100a and is mounted with a bolt, a minute gap may be formed between the metal PCB 210 and the housing bottom surface 100a, and the heat transfer efficiency is deteriorated by the minute gap. Since it is possible to adopt a configuration in which the micro-gap between the metal PCB 210 and the housing bottom surface 100a is filled with thermally conductive silicon grease as described above, the heat of the metal PCB 210 is transferred to the housing 100. There is an advantage to further increase the efficiency of delivery.

In the slim rectifier (A) for outdoor communication equipment according to an embodiment of the present invention, heat generated from the component elements of the rectifier mounted on the metal PCB 210 is conducted to the metal PCB 210 and the housing 100. In addition to the heat dissipation in a manner, in order to increase the heat dissipation efficiency of the heat dissipation route that the heat generated from the component elements of the rectifier to the housing 100 via the internal space (S), the housing 100 is the metal PCB It is characterized in that it is formed to approach 210.

That is, the rectifier A according to the present invention is preferably formed to minimize the internal space (S) of the housing 100, according to this, the heat dissipation efficiency is high and the volume of the product is reduced, reducing the overall thin and light communication equipment You can do it.

In the slim rectifier (A) for outdoor communication equipment according to an embodiment of the present invention, in order to increase the heat radiation efficiency of heat conducted from the metal PCB 210, the heat radiation fins 110 on the bottom surface (100b) of the housing 100 This protrusion is formed.

According to the above configuration, since the surface area radiated by the heat radiation fins 110 is widened, there is an advantage that the heat radiation efficiency is increased.

In particular, since the heat dissipation fin 110 is installed on the bottom surface 100b of the housing 100, which is a position corresponding to the bottom surface 100a on which the metal PCB 210 is installed, heat is radiated by the shortest heat conduction path, so that the heat dissipation is better. do.

In the slim rectifier (A) for outdoor communication equipment according to an embodiment of the present invention, it is supported by a plurality of conductive support pins 231 installed in the metal PCB 210 and upwards from the metal PCB 210. Spaced apart, it is characterized in that it further comprises a resin PCB 220 that is in electrical communication with the metal PCB 210 through the conductive support pin 231.

The metal PCB 210 and the resin PCB 220 constitute a rectifier PCB module 200.

In the slim rectifier (A) for outdoor communication equipment according to an embodiment of the present invention, the metal PCB 210 has a magnetic component 211, such as transformers and reactors, switching elements 212 (for example, power transistors, MOSFETs) And a high heat generating component device including a diode 213, and the low heat generating component device 221 which is a component device other than the high heat generating component device is mounted on the resin PCB 220.

As described above, the present invention categorizes the component elements of the rectifier into two types, that is, the high heat generating element elements 211, 212, and 213 and the low heat generating element elements 221. Each device is mounted on the metal PCB 210 and the resin PCB 220 according to its characteristics, and according to this, the overall dimensions are reduced by reducing the width than when mounting all the component devices on one metal PCB 210. There is an advantage to reduce the volume of the product.

That is, the metal PCB 210 on which the high heat generating component is mounted is mounted to be in close contact with the housing 100, and the low heat generating component 221 which does not need a separate heat dissipation is provided on the metal PCB 210. By mounting at), the heat dissipation of the high heat generating element elements 211, 212, 213 can be kept smooth while reducing the volume of the product.

In the slim rectifier (A) for outdoor communication equipment according to an embodiment of the present invention, in order to install the resin PCB 220 on the metal PCB 210 at a height lower than the magnetic component 211, the magnetic A magnetic mounting recess 220a for projecting the component 211 upwards is formed in the resin PCB 220.

According to the above configuration, since the height h2 of the resin PCB 220 can be lowered than the height h1 of the magnetic component 211, the product can be made slimmer. .

As shown in FIG. 1, the housing 100 may include a housing body 101 accommodating the metal PCB 210 and a housing cover 102 enclosing the housing body 101. The housing cover 102 may be mounted to the housing body 101 by various known methods so that the inner space S is completely sealed.

In addition, one side of the housing 100 is provided with a plurality of connectors 120 for inputting and outputting commercial AC power and rectified DC power or charging current with an external battery.

The following describes the operation of the present invention, the slim rectifier for outdoor communication equipment having the configuration as described above.

First, the assembly method of the product will be described.

After the housing body 101 having the heat dissipation fins 110 is formed by die casting, and the thermal conductive silicon grease (not shown) is applied to the metal PCB 210 and the housing bottom surface 100a, respectively, the rectifier PCB module 200 is housed. It is attached to the bottom surface 100a of the body 101.

Then, when the housing cover 102 is fastened so that the inner space S is sealed to the housing body 101, the assembly is completed.

The following describes the heat dissipation process.

Heat generated from the high heat generating component elements 211, 212, and 213 is radiated through the metal PCB 210-> housing 100-> heat dissipation fin 110 (first heat radiation route), and also the high heat generating component elements 211, Some of the heat generated in 212 and 213 is radiated to the outside immediately after being conducted to the housing 100 through the metal PCB 210 (second heat radiation route), and finally, the high heat generating component elements 211, 212 and 213. The other part of the heat generated in the heat radiation to the inner space (S) immediately after the heat radiation to the outside through the housing 100 (third heat radiation root).

Therefore, according to the present invention, even without using a separate cooling means or heat dissipation means to perform the heat dissipation function in the housing 100 itself, it is possible to perform heat dissipation while reducing the volume and weight of the product.

The slim rectifier (A) for outdoor communication equipment according to the present invention is provided with a switchboard or a separate battery enclosure without installing an operation switch (not shown) inside the housing 100, further simplifying the product and at the same time being completely enclosed. The product is modularized to facilitate the installation and handling of the product and to prevent operation and disassembly by the consumer.

On the other hand, in the embodiment of the present invention, the metal PCB 210 is an example in which there is only one resin PCB 220, but according to embodiments such as design specifications and product capacity, two or three Even if the resin PCB is supported by the conductive support pins 231 spaced apart from each other and installed on the metal PCB 210 to configure the rectifier PCB module 200, of course, it belongs to the technical scope of the present invention.

In an embodiment of the present invention, the configuration in which the metal PCB 210 is mounted on the housing bottom surface 100a by the mounting nut 232 and the bolt (not shown) is described as an example, but is not limited thereto. For example, the metal PCB 210 may be mounted on the bottom surface 100a of the housing 100 using a heat conductive adhesive (not shown) or a heat conductive double-sided tape (not shown).

As described above, a preferred embodiment according to the present invention has been described, and the fact that the present invention can be embodied in other specific forms in addition to the above-described embodiments without departing from the spirit or scope thereof is known to those skilled in the art. It is obvious to those who have it.

Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description but may be modified within the scope of the appended claims and their equivalents.

A: rectifier according to the present invention
100: housing 100a: housing bottom surface
100b: housing lower surface 101: housing body
102: housing cover 110: heat dissipation fin
120 connector 200 rectifier PCB module
210: metal PCB 211: magnetic components
212 switching element 213 diode
220: resin PCB 220a: magnetic mounting groove
221: low heat generating element 231: conductive support pin
232: mounting nut S: internal space of the housing
h1: height of the magnetic component h2: height of the resin PCB

Claims (5)

In the slim rectifier (A) for outdoor communication equipment;
A metal PCB (210) for mounting the component elements of the rectifier and conducting heat generated from the mounted component elements;
In order to protect the component elements mounted on the metal PCB 210 is formed in a hermetic enclosure surrounding the metal PCB 210, the metal PCB 210 is mounted to be in close contact with the bottom surface (100a), the metal PCB A housing 100 that directly radiates heat conducted from 210 to the outside;
Supported by a plurality of conductive support pins 231 placed on the metal PCB 210 is spaced upward from the metal PCB 210, and energized with the metal PCB 210 through the conductive support pin 231. Resin PCB 220 is configured to include,
The metal PCB 210 is mounted with a high heat generating component including a magnetic component 211, a switching element 212 and a diode 213, such as a transformer and a reactor, and the resin PCB 220 other than the high heat generating component Slim rectifier for outdoor communication equipment, characterized in that the component element is mounted.
The method according to claim 1,
In order to increase the heat dissipation efficiency of the heat dissipation route in which the heat generated from the component elements of the rectifier is dissipated to the housing 100 via the internal space S, the housing 100 is located close to the metal PCB 210. Slim rectifier for outdoor communication equipment, characterized in that formed.
The method according to claim 1 or 2,
Slim rectifier for outdoor communication equipment, characterized in that the heat dissipation fins 110 are protruded on the bottom surface (100b) of the housing 100 in order to increase the heat radiation efficiency of the heat conducted from the metal PCB (210).
delete The method according to claim 3,
In order to install the resin PCB 220 on the metal PCB 210 at a lower height than the magnetic component 211, a magnetic mounting recess 220a for protruding the magnetic component 211 upwards is used to form the resin PCB. Slim rectifier for outdoor communication equipment, characterized in that the recess is formed in the 220.

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