Conflux cabinet

Abstract

The utility model discloses a confluence cabinet, which comprises a cabinet body, a door plate and a heat exchanger, the top of the cabinet body is provided with a waterproof lock for waterproof sealing of incoming lines, the door plate is locked on a cabinet door frame through bolts, a first sealing rubber strip is arranged between the door plate and the cabinet door frame, and a second sealing rubber strip is arranged between the door plate and the cabinet door frame. The heat exchanger is installed on the side face of the cabinet body, and a circle of second sealing rubber strip is arranged on the installation lap joint face of the heat exchanger. According to the utility model, waterproof sealing is carried out on the incoming line through the waterproof lock head, the first sealing rubber strip is arranged between the door plate and the cabinet door frame to enhance the sealing performance of the cabinet body, and the second sealing rubber strip is arranged on the mounting lap surface of the heat exchanger to enhance the sealing performance of the joint of the heat exchanger and the cabinet body. Therefore, the overall protection grade of the outdoor confluence cabinet is improved, dust can be prevented from entering the cabinet body, and the problem of arc discharge risk caused by dust entering equipment is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power equipment technical field especially relates to a confluence cabinet. BACKGROUND

[0002] The outdoor confluence cabinet in the market generally only satisfies IP54 protection level, in the actual operation process, often because the protection level of the confluence cabinet is lower, dust is easy to enter the cabinet and causes the equipment short circuit and arc, therefore, it is very necessary to design a high protection level confluence cabinet. SUMMARY

[0003] The utility model wants to solve the technical problem to provide a confluence cabinet, aims at improving the protection level of outdoor confluence cabinet, solves the problem of the risk of arc caused by dust entering the equipment.

[0004] The utility model provides a kind of confluence cabinet, including cabinet body, door panel and heat exchanger, the top of the cabinet body is equipped with waterproof lock head for waterproof sealing to incoming line, the door panel is attached to cabinet door frame by bolt, first sealing rubber strip is equipped between door panel and cabinet door frame, the heat exchanger is installed in the side of cabinet body, the installation lap joint surface of the heat exchanger is equipped with a second sealing rubber strip.

[0005] Preferably, the cabinet door frame is provided with a door panel attachment point, the door panel attachment point is higher than the cabinet door frame folding edge, and the compression amount ΔL of the first sealing rubber strip satisfies the condition ΔL=L0-(L1-L2), where L0 represents the original height of the first sealing rubber strip, and L1-L2 represents the height difference between the door panel attachment point and the cabinet door frame folding edge.

[0006] Preferably, a handle is installed on the door panel.

[0007] Preferably, the heat exchanger includes an outer cavity and an inner cavity, the heat exchanger is provided with an outer cavity air inlet and an outer cavity air outlet at both ends, the heat exchanger is provided with an inner cavity air inlet and an inner cavity air outlet at both ends of the installation lap joint surface, the second sealing rubber strip is arranged outside the inner cavity air inlet and the inner cavity air outlet, a switch module is installed inside the cabinet body, a first through hole is provided on the side of the cabinet body corresponding to the inner cavity air inlet, and a second through hole is provided on the side of the cabinet body corresponding to the inner cavity air outlet.

[0008] The switch module generates heat during normal operation.

[0009] Preferably, an external fan is provided at the outer cavity air outlet, and a cooling fan is provided at the second through hole corresponding to the inner cavity air outlet.

[0010] Preferably, the airflow direction of the outer cavity is opposite to that of the inner cavity.

[0011] Preferably, the outer cavity air outlet is provided with an external fan, and the outer cavity air inlet is provided with dustproof cotton; the second through hole corresponding to the inner cavity air outlet is provided with a cooling fan, and the inner cavity air outlet is arranged at one end of the mounting lap surface of the heat exchanger close to the outer cavity air inlet.

[0012] Preferably, the external fan is fixed on the outer cavity air outlet through an external fan mounting plate covering the outer cavity air outlet; the cooling fan is fixed on the second through hole through a U-shaped cooling fan mounting plate fixed on the inner wall of the cabinet body to form a chamber, the chamber is communicated with the inner cavity air outlet, and a circular hole opposite to the inner cavity of the cooling fan is arranged on the fan mounting surface of the cooling fan mounting plate.

[0013] Preferably, the cabinet body is provided with an air duct partition plate, the air duct partition plate divides the cabinet body into a first chamber and a second chamber, the cooling fan and the cooling fan mounting plate are arranged in the first chamber, the switch module is arranged in the second chamber and the second chamber is communicated with the inner cavity air inlet; a turbulence fan is arranged on the air duct partition plate and located above the switch module, and the air duct partition plate is provided with a gap at the position of the turbulence fan, and the gap communicates the first chamber and the second chamber.

[0014] Preferably, the side surface of the cabinet body is provided with a side door, the side door is locked on a side door frame through bolts, the outgoing line of the busbar cabinet is threaded between the side door and the side door frame, and a third sealing rubber strip is arranged between the side door and the side door frame.

[0015] The busbar cabinet has the advantages that the waterproof lock head is used for waterproof sealing of the incoming line, the first sealing rubber strip is arranged between the door plate and the cabinet door frame to enhance the sealing property of the cabinet body, and the second sealing rubber strip is arranged on the mounting lap surface of the heat exchanger to enhance the sealing property of the connection between the heat exchanger and the cabinet body, so that the overall protection level of the outdoor busbar cabinet is improved, dust can be prevented from entering the cabinet body, and the problem of arc risk caused by dust entering the equipment is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the busbar cabinet of the utility model;

[0017] Figure 2 It is a front view of the internal structure of the busbar cabinet of the utility model;

[0018] Figure 3 It is a three-dimensional structure schematic view of the heat exchanger of the utility model;

[0019] Figure 4 It is a top view of the internal structure of the busbar cabinet of the utility model;

[0020] Figure 5 It is the rear view of the internal structure of the busbar cabinet of the utility model.

[0021] Marked for explanation:

[0022] 001-cabinet body; 002-door plate; 003-external fan mounting plate; 004-heat exchanger; 005-waterproof lock head; 006-external fan; 007-radiating fan; 008-disturbing fan; 009-switch module; 044-heat exchanger's installation lap joint surface; 101-radiating fan mounting plate; 102-air duct partition; 103-door plate lock attachment point; 104-cabinet door frame; 105-cabinet door frame folded edge; 106-side door; 107-side door door frame; 108-notch; 110-first chamber; 120-second chamber; 201-handle; 401-sealing rubber strip; 402-outer cavity; 403-inner cavity; 404-inner cavity air inlet; 405-inner cavity air inlet. DETAILED DESCRIPTION

[0023] In order to make ordinary skilled in the art more clearly understand the purpose, technical scheme and advantages of the utility model, the following will be further described to the utility model in conjunction with the drawings and examples.

[0024] In the utility model, unless another explicit provision and limitation, the terms "installation", "connection", "connect", "fix" and other terms should be broad sense understanding, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be two elements inside the communication or two elements of the interaction relationship. For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning in the utility model.

[0025] In addition, the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless another explicit specific limitation.

[0026] The utility model provides a kind of busbar cabinet.

[0027] As Figures 1-3As shown, in one embodiment of this utility model, the combiner cabinet includes a cabinet body 001, a door panel 002, and a heat exchanger 004. The cabinet body 001 is a continuously welded sealed structure, with all overlapping edges being welded edges to ensure a seal. A waterproof lock head 005 is provided at the top of the cabinet body 001 for waterproof sealing of the incoming line, preventing water ingress when the line enters from the top. A cabinet door frame 104 is provided on the cabinet body 001, and the door panel 002 is bolted to the cabinet door frame 104. A first sealing strip (not shown) is provided between the door panel 002 and the cabinet door frame 104 to achieve a sealing and protective function between the door panel 002 and the cabinet door frame 104. The heat exchanger 004 is installed on the side of the cabinet body 001, and a second sealing strip 401 is provided on the mounting overlapping surface 041 of the heat exchanger 004. When the screws of the heat exchanger 004 are tightened, the second sealing strip 401 is compressed to achieve a protective function.

[0028] Preferably, the waterproof lock head 005 is a waterproof lock head with an IP68 protection rating.

[0029] The heat exchanger 004 includes an outer cavity 402 and an inner cavity 403. The two ends of the heat exchanger 403 are respectively provided with an outer cavity air inlet and an outer cavity air outlet. The two ends of the mounting overlap surface 041 of the heat exchanger 004 are respectively provided with an inner cavity air inlet 404 and an inner cavity air outlet 405. The second sealing strip 401 is arranged around the outside of the inner cavity air inlet 404 and the inner cavity air outlet 405. The cabinet body 001 is equipped with a switch module 009. The switch module generates heat during normal operation. The side of the cabinet body 001 is provided with a first through hole corresponding to the inner cavity air inlet 404, and the side of the cabinet body 001 is provided with a second through hole corresponding to the inner cavity air outlet 405.

[0030] External air enters the external cavity 402 through the external cavity air inlet and exits through the external cavity air outlet, realizing the circulation of airflow inside the external cavity 402; hot air inside the cabinet 001 enters the internal cavity 403 through the internal cavity air inlet 404 and exits through the internal cavity air outlet 405, realizing the circulation of airflow inside the internal cavity 403; the airflow inside the internal cavity 403 exchanges heat with the airflow inside the external cavity 402, and the heat is carried away by the airflow inside the external cavity 402, thereby realizing the heat dissipation of the outdoor junction cabinet.

[0031] In this embodiment, the combiner cabinet uses a waterproof lock head 005 to waterproof and seal the incoming line. A first sealing strip is installed between the door panel 002 and the cabinet door frame 104 to enhance the sealing performance of the cabinet body 001. A second sealing strip 401 is installed on the mounting overlap surface 041 of the heat exchanger 004 to enhance the sealing performance at the connection between the heat exchanger 004 and the cabinet body 001. This improves the overall protection level of the outdoor combiner cabinet, prevents dust from entering the cabinet body 001, and solves the problem of arcing risk caused by dust entering the equipment.

[0032] like Figures 1-2 As shown, in a preferred embodiment based on the above embodiments, the cabinet door frame 104 is provided with a door panel locking point 103. The door panel locking point 103 is higher than the cabinet door frame flange 105. When locking the door panel 002, the inner side of the door panel 002 contacts the door panel locking point 103, and the first sealing strip on the inner side of the door panel 002 contacts the cabinet door frame flange 105. The door panel locking point 103 acts as a limiting structure to ensure that the first sealing strip maintains a suitable amount of compression. The amount of compression of the first sealing strip is denoted as ΔL, which satisfies the condition ΔL=L0-(L1-L2), where L0 represents the original height of the first sealing strip, and L1-L2 represents the height difference between the door panel locking point 103 and the cabinet door frame flange 105.

[0033] like Figure 1 As shown, in a preferred embodiment based on the above embodiments, a handle 201 is installed on the door panel 002 to facilitate gripping the door panel 002 during installation and disassembly.

[0034] like Figures 1-3 As shown, in a preferred embodiment based on the above embodiments, an external fan 006 is provided at the outer cavity air outlet, thereby forming a fixed airflow direction inside the outer cavity 402 of the heat exchanger 004; a cooling fan 007 is provided at the second through hole corresponding to the inner cavity air outlet 405, thereby forming a fixed airflow direction inside the inner cavity 403 of the heat exchanger 004. Since the inner cavity air outlet 405 is located at the end of the mounting overlap surface 041 of the heat exchanger 004 near the outer cavity air inlet, the airflow direction inside the heat exchanger 004 is opposite to the airflow direction outside the cavity, forming a counter-current heat exchange structure, thereby improving heat exchange efficiency. Of course, in other embodiments of this utility model, the inner cavity air outlet 405 can also be located at the end of the mounting overlap surface 041 of the heat exchanger 004 near the outer cavity air outlet, thereby making the airflow direction inside the heat exchanger 004 the same as the airflow direction outside the cavity.

[0035] like Figures 1-3 As shown, in a preferred embodiment based on the above embodiments, an external fan 006 is provided at the air outlet of the outer cavity. The external fan 006 is mounted and fixed at the air outlet of the outer cavity by an external fan mounting plate 003. The external fan mounting plate 003 can cover the entire air outlet of the outer cavity of the heat exchanger 004, ensuring that the external fan 006 can effectively generate negative pressure between the external fan 006 and the air outlet of the outer cavity of the heat exchanger 004, ensuring that air can enter the outer cavity 402 from the air inlet of the outer cavity of the heat exchanger 004, so that a fixed airflow direction is formed inside the outer cavity 402 of the heat exchanger 004. A dustproof cotton is provided at the air inlet of the outer cavity at the other end of the air outlet of the outer cavity. The dustproof cotton is removable and washable, used to prevent large particles of sand and gravel from entering the heat exchanger jacket and damaging the heat exchanger 004.

[0036] A cooling fan 007 is provided at the second through hole corresponding to the air outlet 405 of the inner cavity. The cooling fan 007 is fixedly mounted at the second through hole by a U-shaped cooling fan mounting plate 101. The cooling fan mounting plate 101 is fixedly mounted on the inner wall of the cabinet 001 to form a relatively closed chamber. The chamber communicates with the air outlet 405 of the inner cavity through the second through hole. A circular hole with a diameter equal to the inner diameter of the cooling fan 007 is opened on the fan mounting surface (the side on which the cooling fan is mounted) of the cooling fan mounting plate 101. This circular hole is aligned with the inner cavity of the cooling fan 007. When the cooling fan 007 is working, a negative pressure is formed in the relatively closed chamber formed by the cooling fan mounting plate 101 and the inner wall of the cabinet 001, ensuring that the air inside the cabinet 001 can enter the inner cavity from the air inlet of the heat exchanger 004, so that a fixed airflow direction is formed in the inner cavity 403 of the heat exchanger 004. Since the inner cavity air outlet 405 is located at the end of the mounting overlap surface 041 of the heat exchanger 004 near the outer cavity air inlet, the airflow direction inside the heat exchanger 004 is opposite to the airflow direction outside the heat exchanger 004, forming a counter-current heat exchange structure, thereby improving the heat exchange efficiency.

[0037] like Figures 2-5 As shown, in a preferred embodiment based on the above embodiments, a duct partition 102 is provided inside the cabinet 001. The duct partition 102 divides the cabinet 001 into a first chamber 110 and a second chamber 120. The cooling fan 007 and the cooling fan mounting plate 101 are located in the first chamber 110. The switch module 009 is located in the second chamber 120, and the second chamber 120 is connected to the inner cavity air inlet 404 through a first through hole. The duct partition 102 can prevent airflow short-circuiting and prevent the cooling airflow from directly entering the inner cavity 403 of the heat exchanger 004 for circulation without passing through the switch module 009. A turbulence fan 008 is installed on the air duct partition 102 and the turbulence fan 008 is located above the switch module 009. The air duct partition 102 has a notch 108 at the position of the turbulence fan 008. The notch 108 connects the first chamber 110 and the second chamber 120, ensuring that the heat dissipation airflow can pass through the turbulence fan 008 and blow onto the switch module 009, ensuring that the switch module 009 can get sufficient airflow.

[0038] In actual use, the cooling fan 007 blows airflow, which passes through the gap 108 of the air duct baffle 102 and reaches the deflector fan 008. The deflector fan 008 blows the airflow toward the switch module 009. Due to the obstruction of the air duct baffle 102, the airflow cannot be short-circuited at the deflector fan 008. The airflow from the cooling fan 007 creates a negative pressure in the relatively closed cavity formed by the cooling fan mounting plate 101 and the inner wall of the cabinet 001. The negative pressure spreads from the cavity to the inner cavity 403 of the heat exchanger 004. The airflow passing through the switch module 009 is affected by the negative pressure in the inner cavity 403 of the heat exchanger 004 and will naturally flow toward the inner cavity air inlet 404, which is connected to the second cavity 120. Heat exchange is completed in the inner cavity 403 of the heat exchanger 004, forming a complete airflow path.

[0039] like Figure 2 As shown, in a preferred embodiment based on the above embodiments, the cabinet body 001 has a side door 106 on its side. The side door 106 is bolted to the side door frame 107. The outgoing cable of the combiner cabinet passes through the side door 106 and the side door frame 107. A third sealing strip is provided between the side door 106 and the side door frame 107 to achieve waterproof sealing of the outgoing cable. Of course, in other embodiments of this utility model, a waterproof lock can also be provided on the side door 106, and the outgoing cable passes through the waterproof lock to prevent water from entering during cable exit.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Those skilled in the art can make various equivalent changes and improvements based on the above embodiments. All equivalent changes or modifications made within the scope of the claims should fall within the protection scope of the present utility model.

Claims

1. A busbar cabinet characterized by: The cabinet comprises a cabinet body, a door plate and a heat exchanger, the top of the cabinet body is provided with a waterproof lock head for waterproof sealing of incoming wires, the door plate is locked to the cabinet door frame by bolts, a first sealing rubber strip is arranged between the door plate and the cabinet door frame, and the heat exchanger is installed on the side of the cabinet body.

2. The busbar cabinet according to claim 1, characterized in that: The cabinet door frame is provided with a door plate locking point which is higher than the cabinet door frame folding edge, and the compression amount AL of the first sealing rubber strip satisfies the condition AL=L0-(L1-L2), wherein L0 represents the original height of the first sealing rubber strip, and L1-L2 represents the height difference between the door plate locking point and the cabinet door frame folding edge.

3. The busbar cabinet according to claim 2, characterized in that: A handle is installed on the door plate.

4. The busbar cabinet according to claim 1, characterized in that: The heat exchanger comprises an outer cavity and an inner cavity, the two ends of the heat exchanger are correspondingly provided with an outer cavity air inlet and an outer cavity air outlet, the two ends of the installation lap joint surface of the heat exchanger are correspondingly provided with an inner cavity air inlet and an inner cavity air outlet, the second sealing rubber strip is arranged outside the inner cavity air inlet and the inner cavity air outlet, a switch module is installed inside the cabinet body, a first through hole is arranged on the side of the cabinet body corresponding to the inner cavity air inlet, and a second through hole is arranged on the side of the cabinet body corresponding to the inner cavity air outlet.

5. The busbar cabinet according to claim 4, characterized in that: An external fan is arranged at the outer cavity air outlet, and a heat dissipation fan is arranged at the second through hole corresponding to the inner cavity air outlet.

6. The busbar cabinet according to claim 5, characterized in that: The airflow direction of the outer cavity is opposite to that of the inner cavity.

7. The busbar cabinet according to claim 4, characterized in that: An external fan is arranged at the outer cavity air outlet, and a heat dissipation fan is arranged at the second through hole corresponding to the inner cavity air outlet.

8. The busbar cabinet according to claim 7, characterized in that: The external fan is fixedly installed at the outer cavity air outlet through an external fan mounting plate, the external fan mounting plate covers the outer cavity air outlet; the heat dissipation fan is fixedly installed at the second through hole through a U-shaped heat dissipation fan mounting plate, the heat dissipation fan mounting plate is fixedly installed on the inner wall of the cabinet body to form a cavity, the cavity is communicated with the inner cavity air outlet, and a circular hole opposite to the inner cavity of the heat dissipation fan is formed in the fan mounting surface of the heat dissipation fan mounting plate.

9. The busbar cabinet according to claim 8, characterized in that: A wind channel partition plate is arranged in the cabinet body, the wind channel partition plate divides the cabinet body into a first cavity and a second cavity, the heat dissipation fan and the heat dissipation fan mounting plate are located in the first cavity, the switch module is located in the second cavity and communicated with the inner cavity air inlet, a turbulence fan is installed on the wind channel partition plate and located above the switch module, and a gap is arranged on the wind channel partition plate at the position of the turbulence fan, the gap communicates the first cavity and the second cavity.

10. The busbar cabinet according to any one of claims 1-9, characterized in that: A side door is arranged on the side of the cabinet body, the side door is locked to the side door frame by bolts, and the outgoing wires of the switch cabinet are threaded between the side door and the side door frame, and a third sealing rubber strip is arranged between the side door and the side door frame.

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