CN211321199U

CN211321199U - Heat sink for controlling output voltage

Info

Publication number: CN211321199U
Application number: CN201921985925.0U
Authority: CN
Inventors: 刘彪; 王家旺; 马建彬
Original assignee: Dongguan Ondi Electronic Technology Co ltd
Current assignee: Dongguan Ondi Electronic Technology Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-08-21
Anticipated expiration: 2029-11-15

Abstract

The embodiment of the utility model provides a through providing a control output voltage's heat abstractor, include: the battery pack comprises a circuit board, a shell assembly, a heat dissipation assembly, a battery assembly, an adjustable micro-machine and a connecting wire, wherein the shell assembly comprises a face shell and a bottom shell, the circuit board is arranged on the bottom shell, the battery assembly is connected onto the circuit board, the heat dissipation assembly is connected onto the bottom shell through an adhesive and encloses the battery assembly, the adjustable micro-machine is arranged on the heat dissipation assembly and is connected with the circuit board, the face shell and the bottom shell are combined together and wrap the circuit board, the battery assembly and the adjustable micro-machine, one end of the connecting wire is connected with the circuit board, and the other end of the connecting wire penetrates through the outer surface of the bottom shell. The battery assembly in the heat dissipation device can be controlled by the adjustable micro-machine to not output high voltage, the heat dissipation device is protected from being damaged, and the service life of the heat dissipation device is prolonged.

Description

Heat sink for controlling output voltage

Technical Field

The utility model relates to a power radiator field especially relates to a control output voltage's heat abstractor.

Background

Along with the continuous development of industrialization, in the middle of people's daily production work life, electronic equipment and product have been left, and these electronic equipment and product provide voltage through the power in the middle of work or the operation, need step down the voltage that the power provided, but current step-down device can produce huge heat to power step-down in-process, can cause the damage to step-down device after the heat reaches certain degree.

How to make the heat that pressure reduction means produced at the step-down in-process little, can not cause the damage to pressure reduction means is the technical problem that urgently need to solve.

SUMMERY OF THE UTILITY MODEL

The utility model discloses main aim at provides a control output voltage's heat abstractor, makes the heat that pressure reduction means produced at the step-down in-process little, can not cause the damage to pressure reduction means.

The utility model provides an above-mentioned technical problem's technical scheme be, provide a control output voltage's heat abstractor, include: the battery pack comprises a circuit board, a shell assembly, a heat dissipation plate assembly, a battery assembly, an adjustable micro-machine and a connecting wire, wherein the shell assembly comprises a face shell and a bottom shell, the circuit board is arranged on the bottom shell, the battery assembly is connected onto the circuit board, the heat dissipation plate assembly is connected onto the bottom shell through an adhesive and encloses the battery assembly, the adjustable micro-machine is arranged on the heat dissipation plate assembly and is connected with the circuit board, the face shell and the bottom shell are combined together and wrap the circuit board, the battery assembly and the adjustable micro-machine, one end of the connecting wire is connected with the circuit board, and the other end of the connecting wire penetrates through the outer surface of.

Preferably, the heat sink assembly includes a primary heat sink and a secondary heat sink, the primary heat sink is connected to one portion of the bottom case, the secondary heat sink is connected to another portion of the bottom case, and a space is formed between the primary heat sink and the secondary heat sink.

Preferably, the heat sink for controlling the output voltage further includes a heat sink cover assembly, the heat sink cover assembly includes a primary heat sink cover and a secondary heat sink cover, the primary heat sink cover is disposed between the face shell and the bottom shell and covers the primary heat sink, the secondary heat sink cover is disposed between the face shell and the bottom shell and covers the secondary heat sink, and a gap is formed between the primary heat sink cover and the secondary heat sink cover.

Preferably, the circuit board is provided with an LED lamp, and the LED lamp is electrically connected with the battery assembly.

Preferably, the heat dissipation device further comprises a rectifier bridge, the rectifier bridge is arranged between the primary heat dissipation cover and the secondary heat sink, and the rectifier bridge is connected with the circuit board.

Preferably, the rectifier bridge is screw-shaped.

Preferably, the battery assembly includes a first battery, a second battery, a third battery and a fourth battery, the first battery and the second battery are disposed on the circuit board and surrounded by the primary heat sink, and the third battery and the fourth battery are disposed on the circuit board and surrounded by the secondary heat sink.

Preferably, the face shell is provided with a vent hole.

Preferably, the vent holes arranged on the face shell are rhombic.

Preferably, the circuit board is further provided with an optical coupler, and the optical coupler is located on one side of the rectifier bridge.

Drawings

Fig. 1 is a schematic structural view of the heat dissipation device for controlling output voltage according to the present invention;

fig. 2 is an exploded view of the heat dissipation device for controlling output voltage according to the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Circuit board	11	Shell assembly
12	Heat sink assembly	13	Battery pack
				14	Adjustable micro-electric device	15	Connecting wire
16	Heat sink cover assembly	17	Rectifier bridge
				101	LED lamp	102	Optical coupler
111	Face shell	112	Bottom shell
				121	Primary radiator	122	Secondary radiator
131	First battery	132	Second battery
				133	Third battery	134	Fourth battery
161	Primary heat dissipation cover	162	Secondary radiating cover
				131	First capacitor	132	Second capacitor
133	Third capacitor	134	Fourth capacitor
				161	Primary isolation cover	162	Secondary isolation cover

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1-2, fig. 1 is an exploded view of the heat dissipation device for controlling output voltage according to the present invention; fig. 2 is a schematic structural view of the heat dissipation device for controlling output voltage according to the present invention. In this embodiment, a heat dissipation device for controlling an output voltage is provided, including: the circuit board comprises a circuit board 10, a shell assembly 11, a heat dissipation assembly, a battery assembly 13, an adjustable micro-device 14 and a connecting wire 15, wherein the shell assembly 11 comprises a surface shell 111 and a bottom shell 112, the circuit board 10 is arranged on the bottom shell 112, the battery assembly 13 is connected on the circuit board 10, the heat dissipation plate assembly 12 is connected on the bottom shell 112 through adhesive and encloses the battery assembly 13, the adjustable micro-device 14 is arranged on the heat dissipation plate assembly 12 and is connected with the circuit board 10, the surface shell 111 and the bottom shell 112 are combined together and wrap the circuit board 10, the battery assembly 13 and the adjustable micro-device 14, one end of the connecting wire 15 is connected with the circuit board 10, and the other end of the connecting wire 15 penetrates through the outer surface of the bottom shell 112.

It should be noted that the battery assembly 13 generates heat during operation, and the amount of heat generated is affected by the voltage level. The adjustable micro-device 14 is used for adjusting the voltage output by the battery component 13, and the basic components of the circuit board 10, the shell component 11, the heat sink component 12, the adjustable micro-device 14 and the connecting wire 15 are used for adjusting and controlling the output voltage of the battery component 13 in the heat dissipation device, so that the battery component 13 cannot output high voltage, and the service life of the battery component 13 is prolonged.

In addition, it should be noted that, the heat dissipation device in this embodiment further includes a preset interface connected to an ac power supply or a dc power supply on the circuit board 10, and when the heat dissipation device of this embodiment needs the dc power supply or the ac power supply to provide power for the running device, one end of the wire is connected to the dc power supply or the ac power supply, and the other end of the wire is inserted into the preset interface connected to the ac power supply or the dc power supply, and then is connected to the running device through the connection wire 15. The voltage supplied from the power supply is generally a high voltage, generally 220V, but such a high voltage cannot be directly used in the operating device, and needs to be converted into a voltage suitable for operating the device to operate, otherwise the device may be damaged. The working principle of the heat dissipation device is as follows: the voltage in the power supply is converted to enable the voltage to be the same as the voltage matched with the operation equipment, in the process of converting the power supply voltage, a large amount of heat can be generated by the battery in the heat dissipation assembly and part of components on the circuit board 10, the high voltage is controlled to be output through the adjustable power supply, so that the battery in the heat dissipation assembly and the part of components on the circuit board 10 can generate a large amount of heat, and the practical service life of the heat dissipation device is prolonged.

In this embodiment, by providing a heat dissipation device that controls an output voltage, the heat dissipation device includes: the circuit board assembly 11 comprises a face shell 111 and a bottom shell 112, the circuit board 10 is arranged on the bottom shell 112, the battery component 13 is connected to the circuit board 10, the heat sink component 12 is connected to the bottom shell 112 and encloses the battery component 13, the adjustable micro-device 14 is connected to the heat sink component 12 and contacts with the circuit board 10, the face shell 111 and the bottom shell 112 are combined together and wrap the circuit board 10, the battery component 13 and the adjustable micro-device 14, one end of the connecting wire 15 is connected with the circuit board 10, and the other end of the connecting wire 15 penetrates through the outer surface of the bottom shell 112 and is connected with an external device. The battery assembly 13 in the heat dissipation device can be controlled by the adjustable micro-machine 14, high voltage cannot be output, the heat dissipation device is protected from being damaged, and the service life of the heat dissipation device is prolonged.

Further, the heat sink assembly 12 includes a primary heat sink 121 and a secondary heat sink 122, the primary heat sink 121 is connected to a portion of the bottom case 112, the secondary heat sink 122 is connected to another portion of the bottom case 112, and a space is formed between the primary heat sink 121 and the secondary heat sink 122.

It should be noted that, the conventional heat sink does not have the primary heat sink 121 and the secondary heat sink 122, and the primary heat sink 121 and the secondary heat sink 122 are connected together, and this conventional heat sink cannot output voltage at its respective ends, and is easy to expose the end with high output voltage, which is easy to cause injury to users, and is unsafe. In addition, the conventional heat sink does not have a space between the primary heat sink 121 and the secondary heat sink 122, which results in high production cost.

In the present embodiment, the primary heat sink 121 is connected to a portion of the bottom chassis 112 and the secondary heat sink 122 is connected to another portion of the bottom chassis 112 by providing the heat sink assembly 12 as the primary heat sink 121 and the secondary heat sink 122, with a space formed between the primary heat sink 121 and the secondary heat sink 122. The heat generated by the battery assembly 13 is rapidly reduced, the service life of the battery assembly 13 is prolonged, and the material for producing and processing the heat sink assembly 12 can be saved and the production cost can be reduced because the primary radiator 121 and the secondary radiator 122 form an interval.

Further, the heat sink for controlling the output voltage further includes a heat sink cover assembly 16, the heat sink cover assembly 16 includes a primary heat sink cover 161 and a secondary heat sink cover 162, the primary heat sink cover 161 is disposed between the face shell 111 and the bottom shell 112 and covers the primary heat sink 121, the secondary heat sink cover 162 is disposed between the face shell 111 and the bottom shell 112 and covers the secondary heat sink, and a space is formed between the primary heat sink cover 161 and the secondary heat sink cover 162.

It should be noted that, the conventional heat dissipation cover is not divided into the primary heat dissipation cover 161 and the secondary heat dissipation cover 162, the secondary heat dissipation cover 162 is integrated with the secondary heat dissipation cover 162, and there is no space between the primary heat dissipation cover 161 and the secondary heat dissipation cover 162, so that a creepage phenomenon occurs between the conventional primary heat dissipation cover 161 and the conventional secondary heat dissipation cover 162. The creepage principle is as follows: the surface of the insulator between the two poles has slight discharge phenomenon, so that the surface of the insulator (generally) is dendritic or tree-leaf-shaped meridian-like discharge traces, generally the discharge traces are not communicated with the two poles, the discharge is generally not continuous, and the discharge is only generated under specific conditions, such as wet weather, dirt and dust on the surface of the insulator, and the like, and the insulation damage can be caused after a long time.

In the present embodiment, the heat sink cover assembly 16 is divided into a primary heat sink cover 161 and a secondary heat sink cover 162, the primary heat sink cover 161 is disposed between the face case 111 and the bottom case 112 and covers the primary heat sink 121, the secondary heat sink cover 162 is disposed between the face case 111 and the bottom case 112 and covers the secondary heat sink 122, and a space is formed between the primary heat sink cover 161 and the secondary heat sink cover 162. The damage of the insulators on the secondary heat dissipation cover 162 and the primary heat dissipation cover 161 caused by the creepage phenomenon is prevented.

Further, an LED lamp 101 is disposed on the circuit board 10, and the LED lamp 101 is connected to the battery assembly 13.

The LED lamp 101 is provided on the circuit board 10 to detect whether or not a voltage is discharged from the battery pack 13 in the heat sink, and the LED lamp 101 is lit when the voltage is discharged from the battery pack 13 in the heat sink, and the LED lamp 101 is turned off when the voltage is not discharged from the battery pack 13 in the heat sink. Whether the leakage phenomenon exists in the heat dissipation device can be detected.

Further, the heat dissipation device further includes a rectifier bridge 17, the rectifier bridge 17 is disposed between the primary heat dissipation cover 161 and the secondary heat sink 122, and the rectifier bridge 17 is connected to the circuit board 10.

It should be noted that the rectifier bridge 17 is a very wide power component. The method is applied to various power supply devices. The internal part of the converter is mainly a bridge circuit consisting of four diodes to convert the input alternating voltage into the output direct voltage. In each working cycle of the rectifier bridge 17, only two diodes work at the same time, and alternating current is converted into unidirectional direct current pulsating voltage through the unidirectional conduction function of the diodes. Dissection of a commonly used low power rectifier bridge 17 (e.g., RS2501M from recon semiconductor capacitor) will reveal that the rectifier bridge 17 is in a plastic package (most low power rectifier bridges 17 are in this package). Four main heating components in the bridge, diodes, are divided into two groups and are respectively placed on the pin copper plates of the direct current output. Two connecting copper plates are arranged between the direct current output pin copper plates and are respectively connected with the input pins (alternating current input wires) to form a rectifier bridge 17 which is seen from the appearance and is provided with four external connecting pins. Because the series of rectifier bridges 17 are all in a plastic packaging structure, the peripheries of the diodes, the pin copper plates, the connecting copper plates and the connecting wires are filled with epoxy resin serving as an insulating and heat-conducting framework filling material. However, the thermal conductivity of the epoxy resin is relatively low (generally 0.35 ℃ W/m, and at most 2.5 ℃ W/m), and thus the junction-shell thermal resistance of the rectifier bridge 17 is generally relatively high (generally 1.0-10 ℃/W).

Through set up rectifier bridge 17 between elementary cooling cap 161 and elementary radiator 121 to rectifier bridge 17 is connected with circuit board 10, can become direct current voltage with alternating voltage conversion, is suitable for different scenes, and because rectifier bridge 17 sets up between elementary cooling cap 161 and elementary radiator 121, can be quick give off the heat that rectifier bridge 17 produced, prolongs rectifier bridge 17's life.

Further, the rectifier bridge 17 is screw-shaped.

The rectifier bridge 17 is formed in a screw shape so that the speed at which the rectifier bridge 17 converts the ac voltage into the dc voltage can be controlled by adjusting the screw-shaped rectifier bridge 17, and the rectifier bridge 17 converts the ac voltage into the dc voltage so that the higher the conversion speed, the larger the voltage value, the more heat is generated, and therefore, the rectifier bridge 17 can control the heat generated by the rectifier bridge 17 by forming the screw-shaped rectifier bridge 17. The service life of the rectifier bridge 17 is prolonged.

Further, the battery assembly 13 includes a first battery 131, a second battery 132, a third battery 133 and a fourth battery 134, the first battery 131 and the second battery 132 are disposed on the circuit board 10 and surrounded by the primary heat sink 121, and the third battery 133 and the fourth battery 134 are disposed on the circuit board 10 and surrounded by the secondary heat sink 122.

It should be noted that the electric quantities stored in the first battery 131 and the second battery 132 are much larger than the electric quantities stored in the third battery 133 and the fourth battery 134, the voltages released by the first battery 131 and the second battery 132 are higher than the voltages released by the third battery 133 and the fourth battery 134, and the voltages released by the third battery 133 and the fourth battery 134 are less than 36V, which will not cause harm to human body.

Further, the face shell 111 is provided with a vent hole.

It should be noted that the vent holes provided on the front case 111 are beneficial to rapidly dissipate the heat generated in the heat dissipation assembly.

Furthermore, the vent holes arranged on the face shell are rhombic.

It should be noted that, the bottom case 112 and the face case 111 are both provided with ventilation holes, and the ventilation holes are diamond-shaped, so that heat generated in the heat dissipation assembly can be quickly dissipated, and the service life of the heat dissipation assembly can be prolonged.

Further, an optical coupler 102 is further disposed on the circuit board 10, and the optical coupler 102 is located on one side of the rectifier bridge 17.

It should be noted that the optical coupler 102 has the following advantages: the signal one-way transmission, input and output have realized electrical isolation completely, and output signal does not have the influence to the input, and the interference killing feature is strong, job stabilization, contactless, long service life, transmission efficiency is high. In the monolithic switch power supply, a linear optocoupler 102 coupler can be used for forming an optocoupler 102 feedback circuit, the duty ratio is changed by adjusting the current of a control end, the purpose of precise voltage stabilization is achieved, and signal receiving and transferring are realized.

In this embodiment, by providing the optocoupler 102 on the circuit board 10, the voltage output signal in the battery module 13 in the heat dissipation device can be prevented from being interfered, so as to achieve the purpose of precise voltage stabilization and realize signal receiving and transferring.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A heat sink device for controlling an output voltage, comprising: the circuit board, shell subassembly, fin subassembly, battery pack, adjustable micro-machine and connecting wire, shell subassembly includes face-piece and drain pan, the circuit board sets up on the drain pan, battery pack connects on the circuit board, fin subassembly connects on the drain pan and encloses the battery pack, adjustable micro-machine sets up on the fin subassembly and be connected with the circuit board, the face-piece is in the same place with the drain pan and wraps up circuit board, battery pack and adjustable micro-machine, connecting wire one end is connected with the circuit board, the connecting wire other end passes the drain pan surface and is connected with external equipment.

2. The apparatus of claim 1, wherein the heat sink assembly comprises a primary heat sink attached to one portion of the bottom case, a secondary heat sink attached to another portion of the bottom case, the primary heat sink and the secondary heat sink forming a space therebetween.

3. The apparatus of claim 2, further comprising a heat sink cover assembly including a primary heat sink cover and a secondary heat sink cover, the primary heat sink cover being disposed between the face housing and the bottom housing and covering the primary heat sink, the secondary heat sink cover being disposed between the face housing and the bottom housing and covering the secondary heat sink, the primary heat sink cover and the secondary heat sink cover being spaced apart from each other.

4. The output voltage controlled heat sink device of claim 1, wherein an LED lamp is disposed on the circuit board, the LED lamp being electrically connected to the battery assembly.

5. The apparatus according to claim 3, further comprising a rectifier bridge disposed between the primary heat sink and the secondary heat sink, wherein the rectifier bridge is connected to the circuit board.

6. The apparatus for dissipating heat from an output voltage of claim 5, wherein the rectifier bridge is screw-shaped.

7. The output voltage controlled heat sink of claim 3, wherein the battery assembly comprises a first battery, a second battery, a third battery, and a fourth battery, the first and second batteries being disposed on the circuit board and surrounded by the primary heat sink, the third and fourth batteries being disposed on the circuit board and surrounded by the secondary heat sink.

8. The apparatus for dissipating heat from an output voltage of claim 1, wherein the front case has a vent hole.

9. The apparatus for dissipating heat from a controlled output voltage of claim 8, wherein the vent holes formed in the front cover have a diamond shape.

10. The heat sink device for controlling output voltage according to claim 5, wherein an optical coupler is further disposed on the circuit board, and the optical coupler is located at one side of the rectifier bridge.