CN211016656U

CN211016656U - Metal oxide film cooling fixed resistor

Info

Publication number: CN211016656U
Application number: CN202020033209.9U
Authority: CN
Inventors: 陕小军; 华鹏
Original assignee: Shenzhen Bilvtian Technology Co ltd
Current assignee: Shenzhen Bilvtian Technology Co ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-07-14
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses a metal oxide film cooling fixed resistor, including connecting casing and encapsulation casing, connect a plurality of first fixed blocks of the equal fixedly connected with of casing both sides lateral wall, encapsulation casing one side fixedly connected with height and the same second fixed block of first fixed block, the equal threaded connection of first fixed block and second fixed block has the bolt, through bolt fixed connection between the first fixed block of same height and the second fixed block, one side of connecting casing and encapsulation casing interconnect contact all is equipped with a plurality of semicircular fixed slots of mutually supporting. The utility model can achieve better heat dissipation effect with less space by arranging the cooling system and the shell body in an integrated manner; simultaneously communicate each other between the adjacent cooling chamber among the cooling system, can block up or other positions still can make the cooling water pass through and dispel the heat the cooling after breaking down in cooling system at one of them cooling chamber to can improve effectively the utility model discloses a practicality.

Description

Metal oxide film cooling fixed resistor

Technical Field

The utility model relates to a resistor design technical field especially relates to a metal oxide film cooling fixed resistor.

Background

The high-power resistor is required to have higher power, has the characteristics of overload, pulse resistance and the like, is widely applied to various fields, usually realizes the high-power requirement by connecting a plurality of resistors in parallel, and has the advantages of safety, high precision and the like by connecting a plurality of resistors in parallel.

Similarly, when a high-power resistor, especially a metal oxide film fixed resistor, works, a large amount of heat is generated and the resistor often works in a high-temperature environment, which leads to a high temperature of the resistor, the high-temperature environment will affect the service life and the high-temperature stability of the resistor, and if a heat sink is separately installed, a large space is often occupied.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the high-power resistor in the prior art can generate a large amount of heat and work in high temperature environment and lead to the resistor temperature higher, influence the life and the stability of resistor, and the fixed resistor of a metal oxide film cooling that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a metal oxide film cooling fixed resistor, is including connecting casing and encapsulation casing, connect a plurality of first fixed blocks of the equal fixedly connected with of casing both sides lateral wall, encapsulation casing one side fixedly connected with height and the same second fixed block of first fixed block, the equal threaded connection of first fixed block and second fixed block has the bolt, same height first fixed block with through bolt fixed connection between the second fixed block, one side of connecting casing and encapsulation casing interconnect contact all is equipped with a plurality of semicircular fixed slots of mutually supporting, fixedly connected with resistor in the fixed slot, all be equipped with cooling system in connecting casing and the encapsulation casing, cooling system includes a plurality ofly and the cooling chamber of fixed slot lateral wall laminating, and is adjacent communicate each other between the cooling chamber.

Preferably, the connecting shell and the side wall of the packaging shell are both provided with a water inlet and a water outlet.

Preferably, a valve, a pressure pump and a filter screen are arranged on the water inlet.

Preferably, the water inlet is lower than the water outlet.

Preferably, the resistors are connected in parallel, and pins are arranged below the connecting shell and the packaging shell.

Preferably, the connecting shell and the packaging shell are made of materials with good thermal conductivity and good sealing performance, and the side wall of the fixing groove is coated with a material with good insulation performance and good thermal conductivity.

Compared with the prior art, the utility model discloses possess following advantage:

1. the utility model discloses a set up cooling system can effectively surround the parcel around the resistor to can make the cooling water absorb the heat on the resistor rapidly, thereby reach the purpose of heat dissipation cooling, cooling system and casing integrated mode before simultaneously relatively cooling pipeline twines on the resistor and the mode of shell can practice thrift the space effectively;

2. the utility model discloses a be provided with force (forcing) pump and valve on the water inlet and can ensure that cooling water can well flow through whole cooling system, be provided with the filter screen on the water inlet simultaneously and can prevent effectively that the impurity in the cooling water from getting into the cooling system and causing cooling system to block up, the water inlet sets up below simultaneously, the delivery port sets up in the eminence can make the comdenstion water fill up whole cooling system, and then improves cooling system's cooling effect;

3. the utility model discloses communicate each other between the adjacent cooling chamber in the well cooling system, can block up or other positions of cooling system after breaking down at one of them cooling chamber still can make the cooling water pass through and dispel the heat the cooling, thereby can improve effectively the utility model discloses a practicality.

Drawings

Fig. 1 is a schematic view of an overall structure of a metal oxide film cooling fixed resistor according to the present invention;

FIG. 2 is a schematic view of a cross-sectional view taken along line A-A in FIG. 1;

fig. 3 is an enlarged view of a structure a in fig. 2.

In the figure: the device comprises a connecting shell 1, a packaging shell 2, a first fixing block 3, a second fixing block 4, bolts 5, fixing grooves 6, a resistor 7, a cooling system 8, a cooling chamber 9, a water inlet 10, a water outlet 11, a filter screen 12 and pins 13.

Detailed Description

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.

Referring to fig. 1-3, a metal oxide film cooling fixed resistor comprises a connecting shell 1 and a packaging shell 2, wherein the side walls of both sides of the connecting shell 1 are fixedly connected with a plurality of first fixing blocks 3, one side of the packaging shell 2 is fixedly connected with a second fixing block 4 with the same height as the first fixing block 3, the first fixing block 3 and the second fixing block 4 are both in threaded connection with bolts 5, the first fixing block 3 and the second fixing block 4 with the same height are fixedly connected through the bolts 5, different connecting shells 1 can also be mutually and fixedly connected through the first fixing blocks 3, a plurality of mutually matched semicircular fixing grooves 6 are arranged on one sides of the connecting shell 1, which are mutually connected and contacted with the packaging shell 2, a resistor 7 is fixedly connected in the fixing grooves 6, a cooling system 8 is arranged in the connecting shell 1 and the packaging shell 2, the cooling system 8 comprises a plurality of cooling chambers 9 which are jointed with the side walls of, thereby can block up or break down after one of them cooling chamber 9 other positions of cooling system 8 still can make the cooling water pass through and carry out the cooling of dispelling the heat, thereby can improve effectively the utility model discloses a practicality.

Specifically, the side walls of the connecting shell 1 and the packaging shell 2 are provided with a water inlet 10 and a water outlet 11, cooling water flows in from the water inlet, the whole cooling system 8 absorbs heat on the resistor 7 to achieve the purpose of cooling and radiating the resistor 7, and the cooling water carrying the heat flows out from the water outlet 11.

It is worth mentioning that, install valve, force (forcing) pump and filter screen 12 on the water inlet 10, can control the circulation and the flow size of cooling water through the valve, can ensure through the force (forcing) pump that cooling water can be fine enough and flow out and then make things convenient for cooling water to discharge heat together from the higher delivery port 11 in position, filter screen 12 can filter the impurity in the cooling water effectively, prevents that the impurity in the cooling water from entering into cooling system 8 and causing cooling system 8 to block up.

It should be noted that the water inlet 10 is located at a low position, and the water outlet 11 is located at a high position, and this arrangement can ensure that the cooling water can fully fill the whole cooling system 8, and can more effectively absorb heat on the resistor 7 to achieve the cooling and heat dissipation effects.

Specifically, the resistors 7 are connected in parallel, the pins 13 are arranged below the joint of the connecting shell 1 and the packaging shell 2, the resistors 7 are connected in parallel, the progress and the stability of the resistors can be effectively improved, and meanwhile, the pins 13 can be conveniently connected with a circuit.

It is worth mentioning that the connecting shell 1 and the packaging shell 2 are both made of materials with good thermal conductivity and good sealing performance, the connecting shell 1 and the packaging shell 2 can well radiate and transfer heat on the resistor 7, so that the resistor 7 can be conveniently radiated and cooled by cooling water, the side wall of the fixing groove 6 is coated with materials with good insulation performance and good heat conduction performance, such as epoxy resin, so that the resistor 7 can be sealed and insulated and can be used as a good heat transfer medium,

the working principle is as follows:

the utility model discloses during the use, the valve on the control water inlet 10 makes the cooling water get into from water inlet 10, then enter into cooling system 8 after carrying out the pressure filtration through force (forcing) pump and filter screen 12 respectively, because water inlet 10 is located the below, delivery port 11 is located the top, the cooling water can be filled up whole cooling system 8 well, the cooling water is when in cooling chamber 9, and only separated the lateral wall that the one deck thermal conductivity is good between the resistor 7, then the cooling water can absorb the heat on the resistor 7 well and play the radiating effect of heat absorption, cooling water after the heat absorption will follow delivery port 11 and discharge and take away the heat and then realize the effect of constantly dispelling the heat and cooling.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A metal oxide film cooling fixed resistor comprises at least one connecting shell (1) and two packaging shells (2), and is characterized in that the side walls of the two sides of the connecting shell (1) are fixedly connected with a plurality of first fixing blocks (3), one side of each packaging shell (2) is fixedly connected with a second fixing block (4) with the same height as the first fixing blocks (3), the first fixing blocks (3) and the second fixing blocks (4) are in threaded connection with bolts (5), the first fixing blocks (3) and the second fixing blocks (4) with the same height are fixedly connected through the bolts (5), one side of the connecting shell (1) and one side of the packaging shell (2) in mutual connection contact are respectively provided with a plurality of semicircular fixing grooves (6) which are matched with each other, the resistors (7) are fixedly connected in the fixing grooves (6), and cooling systems (8) are respectively arranged in the connecting shell (1) and the packaging shell (2), the cooling system (8) comprises a plurality of cooling chambers (9) attached to the side walls of the fixing grooves (6), and the adjacent cooling chambers (9) are communicated with each other.

2. A metal oxide film cooling fixed resistor according to claim 1, wherein the connecting shell (1) and the packaging shell (2) are provided with a water inlet (10) and a water outlet (11) on the side walls.

3. A metal oxide film cooling fixed resistor according to claim 2, wherein a valve, a pressurizing pump and a filter screen (12) are installed on the water inlet (10).

4. A metal oxide film cooling fixed resistor according to claim 2, wherein the water inlet (10) is located at a low position and the water outlet (11) is located at a high position.

5. A metal oxide film cooling fixed resistor according to claim 1, wherein the resistors (7) are connected in parallel, and a pin (13) is arranged below the connection between the connecting shell (1) and the packaging shell (2).

6. A metal oxide film cooling fixed resistor according to claim 1, wherein the connecting casing (1) and the sealing casing (2) are made of materials having good thermal conductivity and good sealing performance, and the side walls of the fixing groove (6) are coated with materials having good insulation performance and good thermal conductivity.