Metal row connector heat sink

Abstract

The present invention relates to a heat dissipation device for a metal bar connector, comprising an upper cover and a lower cover, both of which are U-shaped structures, and connecting edges are arranged on both sides of the U-shaped front openings of the upper cover and the lower cover, and the U-shaped front openings of the upper cover and the lower cover are arranged opposite to each other, and the connecting portion of the upper cover is connected and fixed to the connecting edge of the lower cover, so that a clamp is formed between the upper cover and the lower cover, and the clamp seals and clamps the metal bar connector; an air flow channel is formed between the outside of the metal bar connector and the inner walls of the upper cover and the lower cover; a sieve plate is horizontally arranged in the lower cover, and the sieve plate is located below the metal bar connector, and an air inlet cavity is formed between the sieve plate and the bottom surface of the lower cover, and the air inlet cavity is connected to an air inlet pipe, and an air outlet is opened on the top of the upper cover. Directly focusing on the phenomenon that the metal bar connector is prone to heat generation, the inefficiency and high cost of using large-scale heat dissipation for the entire metal bar system are avoided.

Description

Technical Field

[0001] The invention relates to a heat dissipation device for a metal row connector. Background Art

[0002] Copper or aluminum busbars are conductors with low resistance, large current carrying capacity, good electrical and mechanical properties, easy installation, reliability, and long life. Compared with traditional distribution cables, the area occupied by the equipment is significantly reduced. Because copper and aluminum busbars are spliced ​​in sections, busbar connectors are used to connect the two sections of metal busbars. Since the connector is not an extension of the original metal busbar, but a small section of metal busbar is used as a connector for reconnection, the resistance between the metals will increase during the connection process. Under the loading of high current load, the physical phenomenon of heating will occur. Since the metal busbar connector is embedded in an independent wire trough, the closed environment will accelerate the accumulation of heat. Under the isolation of external airflow, the continuous thermal effect will cause the contact surface of the connector to expand and deform, seriously affecting the power supply safety of the connector, and ultimately causing immeasurable losses to the entire power supply system.

[0003] Currently, the cooling of metal busbar connectors is mainly carried out by water cooling, which has the problems of high cost and low efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a metal bus connector heat dissipation device to solve the problems of high heat dissipation cost, low efficiency and unsatisfactory heat dissipation effect of the previous metal bus connectors.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A metal row connector heat dissipation device is provided, comprising:

[0007] The upper cover and the lower cover are both U-shaped structures, and connecting edges are arranged on both sides of the U-shaped front openings of the upper cover and the lower cover. The U-shaped front openings of the upper cover and the lower cover are arranged opposite to each other, and the connecting portion of the upper cover is connected and fixed to the connecting edge of the lower cover to form a clamping opening between the upper cover and the lower cover, and the clamping opening seals and clamps the metal bar connector; an air flow channel is formed between the outside of the metal bar connector and the inner walls of the upper cover and the lower cover;

[0008] A sieve plate is transversely arranged in the lower cover, and the sieve plate is located below the metal row connector. An air inlet cavity is formed between the sieve plate and the bottom surface of the lower cover, and the air inlet cavity is connected to the air inlet pipe. An air outlet is opened at the top of the upper cover.

[0009] Furthermore, upper sealing rings are respectively arranged on the two U-shaped side openings of the upper cover, and the two sides of the metal bus connector are respectively sealed with the two U-shaped side openings of the upper cover through the upper sealing rings;

[0010] Lower sealing rings are respectively arranged on the two U-shaped side openings of the lower cover, and the two sides of the metal bus connector are respectively sealed with the two U-shaped side openings of the lower cover through the lower sealing rings;

[0011] The two sides of the sieve plate are respectively in contact with the lower sealing rings on both sides to form a sealing fit;

[0012] The upper sealing ring and the lower sealing ring are both U-shaped structures, and an end face sealing fit is formed between the U-shaped front openings of the upper sealing ring and the lower sealing ring.

[0013] Furthermore, the upper sealing ring and the lower sealing ring each include an inner sealing pad and an outer sealing pad, the inner sealing pad and the outer sealing pad are both U-shaped structures, and the inner sealing pad is integrally formed on the inner end surface of the outer sealing pad;

[0014] The inner wall of the U-shaped opening of the outer sealing gasket is suitable for forming a sealing fit with the metal bus connector;

[0015] The inner step surface formed between the outer sealing gasket and the inner sealing gasket is suitable for forming a sealing fit with the upper cover or the lower cover;

[0016] The U-shaped edge end faces of the outer sealing gasket and the inner sealing gasket form an end face sealing match with the U-shaped edge end faces of the sealing ring arranged oppositely;

[0017] The inner end surface of the inner sealing gasket is suitable for forming a sealing fit with the sieve plate.

[0018] Furthermore, an upper wedge block is fixedly arranged on the inner side wall of the U-shaped opening of the upper cover, an air flow channel is formed between the upper wedge block and the metal bar connector, and a window is provided on the upper wedge block so that the annular air flow channel is connected with the air outlet of the upper cover;

[0019] A lower wedge block is fixedly arranged on the inner side wall of the U-shaped opening of the lower cover, and a sealed fixed connection is formed between the fixed edges on both sides of the sieve plate and the lower wedge block.

[0020] The beneficial effects of the present invention are:

[0021] Directly focusing on the heat generation of metal bus connectors, avoiding the inefficiency and high cost of using large-scale heat dissipation for the entire metal bus system;

[0022] The airflow in the air intake cavity is sprayed through the dense mesh holes on the mesh plate to increase the cooling area and enhance the heat dissipation effect;

[0023] By respectively arranging upper and lower wedge blocks on the inner walls of the upper and lower covers, the annular airflow channel becomes narrower, the flow rate of the dry cold airflow can be increased, and the diffusion of heat can be further accelerated;

[0024] Changing the cooling method of using circulating water to use dry cold airflow as the cooling medium is safer and more reliable;

[0025] The upper and lower covers can be disassembled and assembled, which is convenient for storage and reliable maintenance.

[0026] The cooling effect is continuously improved by increasing the contact area between the gas and the metal row connector and increasing the gas flow rate in the annular air flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a front cross-sectional view of the heat sink of the metal row connector;

[0029] Figure 2 This is a top view of the metal row connector heat sink;

[0030] Figure 3 This is a bottom view of the metal row connector heat sink (without the lower cover);

[0031] Figure 4 It is a schematic diagram of the sealing ring;

[0032] Figure 5 It is a schematic diagram of the upper wedge block;

[0033] Among them, 1. metal busbar connector, 2. upper cover, 21. connecting part, 3. lower cover, 41. upper sealing ring, 42. lower sealing ring;

[0034] 411, inner gasket, 412, outer gasket;

[0035] 51. air intake pipe, 52. heat dissipation window, 53. annular air flow channel;

[0036] 61, upper wedge block, 62, lower wedge block;

[0037] 7. Sieve plate. DETAILED DESCRIPTION

[0038] The present invention will now be further described in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0039] like Figures 1 to 5As shown, a heat dissipation device of a metal bar connector 1 comprises an upper cover 2 and a lower cover 3, both of which are U-shaped structures, and connecting edges are arranged on both sides of the U-shaped front openings of the upper cover 2 and the lower cover 3, and the U-shaped front openings of the upper cover 2 and the lower cover 3 are arranged opposite to each other, and the connecting portion 21 of the upper cover 2 is connected and fixed with the connecting edge of the lower cover 3, so that a clamping opening is formed between the upper cover 2 and the lower cover 3, and the clamping opening seals and clamps the metal bar connector 1; an air flow channel is formed between the outside of the metal bar connector 1 and the inner walls of the upper cover 2 and the lower cover 3;

[0040] A sieve plate 7 is transversely arranged in the lower cover 3 , and the sieve plate 7 is located below the metal bus connector 1 . An air inlet cavity is formed between the sieve plate 7 and the bottom surface of the lower cover 3 , and the air inlet cavity is connected to the air inlet pipe 51 . An air outlet is opened at the top of the upper cover 2 .

[0041] In this embodiment, the sealing between the upper cover 2 and the lower cover 3 is achieved by conventional technical means.

[0042] Specifically, as an optional implementation in this embodiment, upper sealing rings 41 are respectively provided on the two U-shaped side openings of the upper cover 2, and the two sides of the metal bus connector 1 are respectively sealed with the two U-shaped side openings of the upper cover 2 through the upper sealing rings 41;

[0043] The two U-shaped side openings of the lower cover 3 are respectively provided with lower sealing rings 42, and the two sides of the metal bus connector 1 are respectively sealed with the two U-shaped side openings of the lower cover 3 through the lower sealing rings 42;

[0044] The two sides of the sieve plate 7 are respectively in contact with the lower sealing rings 42 on both sides to form a sealing fit;

[0045] The upper sealing ring 41 and the lower sealing ring 42 are both U-shaped structures, and an end face sealing fit is formed between the U-shaped front openings of the upper sealing ring 41 and the lower sealing ring 42.

[0046] In the present invention, a pair of side edges of the sieve plate 7 are used as fixed edges for fixed connection with the upper cover 2 to achieve installation of the sieve plate 7, and another pair of side edges of the sieve plate 7 are used as sealing edges for contacting and sealing with the lower sealing ring 42.

[0047] Specifically, as an optional implementation in this embodiment, Figure 4 As shown, the upper sealing ring 41 and the lower sealing ring 42 both include an inner sealing pad 411 and an outer sealing pad 412, and both the inner sealing pad 411 and the outer sealing pad 412 are U-shaped structures, and the inner sealing pad 411 is integrally formed on the inner end surface of the outer sealing pad 412;

[0048] The inner wall of the U-shaped opening of the outer sealing gasket 412 is suitable for forming a sealing fit with the metal bus connector 1;

[0049] The inner step surface formed between the outer sealing gasket 412 and the inner sealing gasket 411 is suitable for forming a sealing fit with the upper cover 2 or the lower cover 3;

[0050] The U-shaped edge end faces of the outer sealing gasket 412 and the inner sealing gasket 411 form an end face sealing fit with the U-shaped edge end faces of the sealing ring disposed oppositely;

[0051] The inner end surface of the inner sealing gasket 411 is suitable for forming a sealing fit with the sealing edge of the sieve plate 7 .

[0052] Specifically, as an optional implementation in this embodiment, Figure 5 As shown, an upper wedge block 61 is fixedly disposed on the inner side wall of the U-shaped opening of the upper cover 2, and an air flow channel is formed between the upper wedge block 61 and the metal bus connector 1. A window is provided on the upper wedge block 61 so that the annular air flow channel 53 is connected to the air outlet of the upper cover 2;

[0053] A lower wedge block 62 is fixedly disposed on the inner side wall of the U-shaped opening of the lower cover 3 , and a sealed fixed connection is formed between the fixed edges on both sides of the sieve plate 7 and the lower wedge block 62 .

[0054] In this embodiment, the two ends of the upper wedge block 61 abut against the inner sealing gasket 411 of the upper sealing ring 41; the two ends of the lower wedge block 62 abut against the inner sealing gasket 411 of the lower sealing ring 42;

[0055] The height of the lower wedge block 62 plus the height of the heating chamber and the sieve plate 7 is equal to the height of the inner sealing gasket 411 of the lower sealing ring 42.

[0056] The upper wedge block 61 and the lower wedge block 62 are respectively fixed to the inner walls of the upper cover 2 and the lower cover 3 by gluing.

[0057] After the lower wedge block 62 is arranged in the lower cover 3 , a pair of fixed edges of the sieve plate 7 are fixedly connected to the lower wedge block 62 through the sealant.

[0058] In this embodiment, the upper wedge block 61 and the lower wedge block 62 are both U-shaped structures, which are used to reduce the air in the annular airflow channel 53 and the air inlet cavity, thereby narrowing the air inlet cavity and the airflow channel to increase the flow rate.

[0059] The upper wedge block 61 and the lower wedge block 62 also have a function of providing heat insulation.

[0060] The air inlet pipe 51 passes through the lower cover 3 and the lower wedge block 62 and extends into the air inlet cavity, and a sealing fit is formed between the air inlet pipe 51, the lower cover 3 and the lower wedge block 62.

[0061] The dry cold airflow input by the air intake pipe 51 flows into the air intake cavity from the air intake pipe 51, and the dry cold airflow is injected into the air holes of the sieve plate 7 and sprayed upward. The sprayed dry cold airflow directly acts on the metal row connector 1 above to realize the cooling of the metal sheet connector. Then the dry cold airflow flows forward along the air flow channel around the metal row, and converges to the heat dissipation window 52 of the upper cover 2 and is discharged.

[0062] The heat dissipation device of the present invention is easy to assemble and disassemble, has a high heat dissipation effect, is low in cost, is easy to store and organize, and is reliable to maintain.

[0063] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A metal row connector heat dissipation device, characterized in that: include The upper cover and the lower cover are both U-shaped structures, and connecting edges are arranged on both sides of the U-shaped front openings of the upper cover and the lower cover. The U-shaped front openings of the upper cover and the lower cover are arranged opposite to each other, and the connecting portion of the upper cover is connected and fixed to the connecting edge of the lower cover to form a clamping opening between the upper cover and the lower cover, and the clamping opening seals and clamps the metal bar connector; an air flow channel is formed between the outside of the metal bar connector and the inner walls of the upper cover and the lower cover; A sieve plate is disposed transversely in the lower cover, the sieve plate is located below the metal row connector, an air inlet cavity is formed between the sieve plate and the bottom surface of the lower cover, the air inlet cavity is connected to the air inlet pipe, and an air outlet is provided at the top of the upper cover; Upper sealing rings are respectively arranged on the two U-shaped side openings of the upper cover, and the two sides of the metal bus connector are respectively sealed with the two U-shaped side openings of the upper cover through the upper sealing rings; Lower sealing rings are respectively arranged on the two U-shaped side openings of the lower cover, and the two sides of the metal bus connector are respectively sealed with the two U-shaped side openings of the lower cover through the lower sealing rings; The two sides of the sieve plate are respectively in contact with the lower sealing rings on both sides to form a sealing fit; The upper sealing ring and the lower sealing ring are both U-shaped structures, and an end face sealing fit is formed between the U-shaped front openings of the upper sealing ring and the lower sealing ring; The upper sealing ring and the lower sealing ring both include an inner sealing pad and an outer sealing pad, the inner sealing pad and the outer sealing pad are both U-shaped structures, and the inner sealing pad is integrally formed on the inner end surface of the outer sealing pad; The inner wall of the U-shaped opening of the outer sealing gasket is suitable for forming a sealing fit with the metal bus connector; The inner step surface formed between the outer sealing gasket and the inner sealing gasket is suitable for forming a sealing fit with the upper cover or the lower cover; The U-shaped edge end faces of the outer sealing gasket and the inner sealing gasket form an end face sealing match with the U-shaped edge end faces of the sealing ring arranged oppositely; The inner end surface of the inner sealing gasket is suitable for forming a sealing fit with the sieve plate; An upper wedge block is fixedly arranged on the inner side wall of the U-shaped opening of the upper cover, an air flow channel is formed between the upper wedge block and the metal bar connector, and a window is provided on the upper wedge block so that the annular air flow channel is connected with the air outlet of the upper cover; A lower wedge block is fixedly arranged on the inner side wall of the U-shaped opening of the lower cover, and a sealed fixed connection is formed between the fixed edges on both sides of the sieve plate and the lower wedge block.

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