Drawer-type heat dissipation device and box-type substation

Abstract

The utility model relates to the technical field of heat dissipation of power equipment, in particular to a drawer-type heat dissipation device and a box-type substation, and the drawer-type heat dissipation device comprises an installation frame, a drawer box, a heat dissipation fan and a linkage mechanism. The installation frame comprises an installation frame body, the installation frame body is provided with a first through opening, the cooling fan is arranged in the drawer box, the linkage mechanism comprises a shielding part and a linkage assembly, the shielding part is located outside the installation frame body and slidably arranged on one side of the first through opening, and the linkage assembly is connected with the shielding part and drives the shielding part to move; and the shielding piece moves along with the movement of the drawer box until the first through opening is completely opened or completely shielded. According to the drawer type heat dissipation device, when the heat dissipation fan is disassembled, foreign matters can be prevented from falling into the electrical cabinet, safety accidents such as damage or short circuit of electrical equipment in the electrical cabinet are avoided, the safety of operation and maintenance personnel is guaranteed, the safety and stability of operation of the electrical equipment are improved, and the problem that potential safety hazards exist when the heat dissipation fan is disassembled and maintained is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of power equipment, and particularly relates to a drawer-type heat dissipation device and a box-type substation. Background Technique

[0002] Generally, a variety of power equipment is integrated inside an electrical cabinet (such as a switch cabinet, a distribution cabinet, a control cabinet). Each power equipment will generate a large amount of heat during long-term operation, which causes the temperature inside the electrical cabinet to rise, thereby affecting the performance and operation stability of the power equipment and triggering equipment failures or safety accidents. Therefore, it is necessary to dissipate heat inside the electrical cabinet and timely discharge the heat generated inside the electrical cabinet to the outside of the electrical cabinet. In the prior art, the heat dissipation method for the electrical cabinet is generally to install a heat dissipation fan inside the electrical cabinet to send air for heat dissipation inside the electrical cabinet room, protect the power equipment inside the electrical cabinet from high-temperature damage, and thus extend the service life of the equipment. Since the heat dissipation fan also needs to run for a long time, if it is not properly maintained, the heat dissipation fan will malfunction, affecting the normal operation of the power equipment inside the electrical cabinet. Therefore, it is necessary to regularly maintain the heat dissipation fan to ensure its normal operation.

[0003] The existing heat dissipation devices generally install a fixed bracket inside the box body of the electrical cabinet, and then detachably install the heat dissipation fan on the fixed bracket. When the heat dissipation fan needs to be maintained or replaced, the heat dissipation fan is usually directly removed at the fixed bracket. This installation and disassembly method still has some disadvantages. On the one hand, since the heat dissipation fan is connected to the inside of the electrical cabinet, there are safety hazards when disassembling the heat dissipation fan. For example, foreign objects (such as small parts like screws or nuts) are likely to fall into the inside of the electrical cabinet, damaging the power equipment inside the electrical cabinet or causing safety accidents such as short circuits, affecting the safety and stability of the operation of the power equipment. On the other hand, for electrical cabinets installed in some narrow spaces, it is difficult for operators to disassemble the heat dissipation fan through the narrow space, increasing the difficulty of disassembling and maintaining the heat dissipation fan. On the third hand, if the heat dissipation fan is installed in a live compartment, to ensure the personal safety of the operator, the main circuit power supply of the power equipment inside the electrical cabinet must be cut off before the heat dissipation fan can be removed. And the power outage application requires a series of complex procedures, greatly increasing the difficulty of maintenance work. At the same time, power outage maintenance of power equipment will also cause certain economic losses. Content of the Utility Model

[0004] The main object of the present utility model is to provide a drawer-type heat dissipation device and a box-type substation, which can prevent foreign objects (such as small parts like screws and nuts) from falling into the interior of the electrical cabinet when disassembling and maintaining the heat dissipation fan, avoid damage to the power equipment in the electrical cabinet or safety accidents such as short circuits, effectively ensure the personal safety of operation and maintenance personnel, improve the safety and stability of the operation of power equipment, and solve the problem of potential safety hazards during the disassembly and maintenance of the heat dissipation fan.

[0005] To achieve the above object, a drawer-type heat dissipation device proposed by the present utility model includes an installation frame, a drawer box, a heat dissipation fan and a linkage mechanism; the installation frame includes an installation frame body, the installation frame body is provided with a receiving cavity for accommodating the drawer box, and one side of the installation frame body is provided with an installation opening for the drawer box to pass through, and the installation opening is communicated with the receiving cavity; the heat dissipation fan is arranged in the drawer box, a air supply opening is opened at the air outlet end of the drawer box corresponding to the heat dissipation fan, a first through opening is opened on the installation frame body, and the air supply opening is communicated with and correspondingly arranged with the first through opening; the drawer box is slidably connected with the installation frame body, the linkage mechanism includes a shielding member and a linkage component, the shielding member is located outside the installation frame body and is slidably arranged on one side of the first through opening; the linkage component is connected with the shielding member, the linkage component drives the shielding member to move, and the moving direction of the shielding member is opposite to the moving direction of the drawer box; when the drawer box moves into the receiving cavity, the shielding member moves to one side of the first through opening, so that the first through opening is completely opened; when the drawer box moves away from the installation frame body, the shielding member moves to completely shield the first through opening.

[0006] Optionally, the linkage component includes a telescopic member, a moving block, a turning block and a flexible connecting member; the turning block is arranged on the outer side wall of the installation frame body, a sliding groove is opened on the side wall of the installation frame body, the sliding groove is arranged along the moving direction of the drawer box, the moving block is slidably arranged in the sliding groove, and the moving block abuts against the end face of the drawer box far away from the installation opening; one end of the telescopic member is fixedly connected with the installation frame body, the other end of the telescopic member is fixedly connected with one end of the shielding member, the other end of the shielding member is connected with one end of the flexible connecting member, and the other end of the flexible connecting member is movably connected to the turning block and then fixedly connected with the moving block.

[0007] Optionally, the moving block includes a butting block and a pin shaft, the butting block is arranged in the receiving cavity, the butting block abuts against the end face of the drawer box far away from the installation opening, one end of the pin shaft is fixedly connected with the butting block, the other end of the pin shaft passes through the sliding groove and is fixedly connected with the flexible connecting member, and the pin shaft is slidably connected with the sliding groove.

[0008] Optionally, the telescopic member is a spring, and hooks are respectively provided at both ends of the spring. One of the hooks is detachably connected to the mounting frame body, and the other hook is detachably connected to the shielding member; the steering block is a fixed pulley, the flexible connecting member is a pulling rope, and an intermediate section of the flexible connecting member is wound around the steering block.

[0009] Optionally, a first mounting plate is provided at one end of the mounting frame body close to the telescopic member. The first mounting plate is provided with a first hanging ear, and a second hanging ear is arranged on an end face of the shielding member facing the first mounting plate. The two hooks are respectively detachably connected to the first hanging ear and the second hanging ear.

[0010] Optionally, the shielding member is arranged below the mounting frame body. A temporary storage cavity is arranged inside the shielding member. An opening is provided on an end face of the shielding member facing the first through port. The opening is communicated with the temporary storage cavity and is adapted to the first through port.

[0011] Optionally, the mounting frame further includes a fixed bracket. A connecting plate is further provided on an upper end face of the mounting frame body. The connecting plate is fixedly connected to the fixed bracket; a second through port is formed at one end of the mounting frame body close to the fixed bracket. The second through port is communicated with the accommodating cavity and the first through port; an installation cavity for installing the heat dissipation fan is arranged inside the drawer box. The installation cavity is communicated with the air supply port. The heat dissipation fan is arranged inside the installation cavity, and one end of the mounting frame opposite to the second through port is provided with an open end. The fixed bracket is arranged to avoid the first through port.

[0012] Optionally, a second mounting plate is provided on an outer side wall of the mounting frame body close to the mounting port; a front end face of the drawer box is flush with a front end face of the second mounting plate; the drawer-type heat dissipation device further includes a locking structure. The locking structure includes a lock catch and a lock pin. The lock pin is arranged on the front end face of the drawer box and protrudes from the front end face of the drawer box; the lock catch is rotatably connected to the second mounting plate and is rotated to the front of the drawer box to be detachably connected to the lock pin.

[0013] Optionally, a power socket, an indicator light and a handle are further arranged on the front end face of the drawer box; the power socket is electrically connected to the heat dissipation fan; the indicator light is electrically connected to the heat dissipation fan.

[0014] The present utility model also provides a box-type substation, which includes an electrical cabinet and the drawer-type heat dissipation device according to any one of the above. The electrical cabinet includes the box body and a box door. The mounting frame is fixedly arranged inside the box body, and the mounting port is arranged facing the direction of the box door.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. By providing a linkage mechanism, the linkage component drives the shielding member to move, and the moving direction of the shielding member is opposite to that of the drawer box. When the drawer box needs to be pulled out for maintenance or replacement of the heat dissipation fan, the first through hole can be shielded by the shielding member, effectively preventing foreign objects (such as small parts like screws and nuts) or dust from entering the interior of the box body, avoiding damage to the electrical equipment in the electrical cabinet or safety accidents such as short circuits, effectively ensuring the personal safety of the operation and maintenance personnel, and improving the safety and stability of the operation of the electrical equipment.

[0017] 2. By promptly shielding the first through hole, a large amount of heat can be prevented from gushing out from the first through hole when the drawer box is disassembled, the speed of heat diffusion to the outside can be delayed, and the temperature rise of other compartments inside the electrical cabinet can be avoided from being too fast, thereby affecting the performance of the electrical equipment in it.

[0018] 3. By providing a drawer-type heat dissipation device, when the heat dissipation fan needs to be maintained or replaced, only the connection between the power socket of the drawer box and the external power supply needs to be cut off before disassembly, and it is not necessary to cut off the main circuit power supply in the electrical cabinet. The drawer box together with the heat dissipation fan can be quickly and safely disassembled from the installation frame body under the condition that the electrical equipment is powered on, and the heat dissipation fan can be maintained or replaced.

[0019] 4. By arranging the installation opening facing the direction of the box door of the electrical cabinet, it is convenient for the disassembly of the drawer box, solves the problem that it is difficult for the operator to maintain or replace the heat dissipation fan through a narrow space, and reduces the difficulty of disassembly and maintenance of the heat dissipation fan.

[0020] 5. By making the size of the installation frame body match that of the drawer box, and the sizes of the installation frame body and the drawer box can be flexibly adjusted according to the use environment, so that the drawer-type heat dissipation device of the utility model can be applied to more usage scenarios, effectively improving the practicability and adaptability of the drawer-type heat dissipation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram (partial) of the connection state of the drawer-type heat dissipation device and the electrical cabinet according to an embodiment of the utility model;

[0022] Figure 2 Schematic diagram of a usage state of the drawer-type heat dissipation device according to an embodiment of the utility model;

[0023] Figure 3 Schematic diagram of the structure of the drawer-type heat dissipation device according to an embodiment of the utility model (viewed from below, the fixed bracket is hidden);

[0024] Figure 4Top view of the drawer - type heat dissipation device according to an embodiment of the present utility model (hiding the fixing bracket);

[0025] Figure 5 Another schematic diagram of the usage state of the drawer - type heat dissipation device according to an embodiment of the present utility model;

[0026] Figure 6 Schematic structural diagram of the drawer - type heat dissipation device according to an embodiment of the present utility model (viewed from below, hiding the fixing bracket);

[0027] Figure 7 Schematic structural diagram of the installation frame body and the linkage mechanism of the drawer - type heat dissipation device according to an embodiment of the present utility model;

[0028] Figure 8 It is Figure 7 The enlarged schematic diagram at position A in

[0029] Figure 9 Schematic structural diagram of the drawer box of the drawer - type heat dissipation device according to an embodiment of the present utility model;

[0030] Figure 10 Schematic structural diagram of the shielding member of the drawer - type heat dissipation device according to an embodiment of the present utility model;

[0031] Figure 11 Schematic structural diagram of the moving block of the drawer - type heat dissipation device according to an embodiment of the present utility model;

[0032] Figure 12 Schematic diagram of the locked state of the locking structure of the drawer - type heat dissipation device according to an embodiment of the present utility model;

[0033] Figure 13 Schematic diagram of the unlocked state of the locking structure of the drawer - type heat dissipation device according to an embodiment of the present utility model.

[0034] Explanation of the reference numerals in the drawings: Electrical cabinet 1, Installation frame 2, Fixing bracket 21, Installation frame body 22, Accommodation cavity 221, Installation opening 222, First through - opening 223, Slide groove 224, Connection plate 225, Second through - opening 226, First mounting plate 227, First hanging ear 2271, Second mounting plate 228, Drawer box 3, Air supply opening 31, Installation cavity 32, Power socket 33, Indicator light 34, Handle 35, Heat dissipation fan 4, Linkage mechanism 5, Shielding member 51, Opening 511, Temporary storage cavity 512, Second hanging ear 513, Linkage component 52, Telescopic member 521, Hook 5211, Moving block 522, Abutting block 5221, Pin shaft 5222, Steering block 523, Flexible connecting member 524, Guide rod 53, Locking structure 6, Lock catch 61, Notch 611, Lock pin 62, Rotating shaft 63. Detailed implementation manners

[0035] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0036] It should be noted that all the directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0037] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0039] Please refer to Figures 1 to 6, To solve the above technical problems, the present utility model proposes a drawer-type heat dissipation device, including: an installation frame 2, a drawer box 3, a heat dissipation fan 4, and a linkage mechanism 5; the installation frame 2 includes an installation frame body 22, the installation frame body 22 is provided with a receiving cavity 221 for receiving the drawer box 3, and one side of the installation frame body 22 is provided with an installation opening 222 for the drawer box 3 to pass through, and the installation opening 222 is communicated with the receiving cavity 221; the heat dissipation fan 4 is arranged in the drawer box 3, a air supply port 31 is opened at the air outlet end of the drawer box 3 corresponding to the heat dissipation fan 4, a first through port 223 is opened on the installation frame body 22, and the air supply port 31 is communicated with and correspondingly arranged with the first through port 223; the drawer box 3 is slidably connected with the installation frame body 22, the linkage mechanism 5 includes a shielding member 51 and a linkage component 52, the shielding member 51 is located outside the installation frame body 22 and is slidably arranged on one side of the first through port 223; the linkage component 52 is connected with the shielding member 51, the linkage component 52 drives the shielding member 51 to move, and the moving direction of the shielding member 51 is opposite to the moving direction of the drawer box 3; when the drawer box 3 moves into the receiving cavity 221, the shielding member 51 moves to one side of the first through port 223 to completely open the first through port 223; when the drawer box 3 moves away from the installation frame body 22, the shielding member 51 moves to completely block the first through port 223.

[0040] By setting the linkage mechanism 5, the linkage component 52 drives the shielding member 51 to move, and makes the moving direction of the shielding member 51 opposite to the moving direction of the drawer box 3. When it is necessary to draw out the drawer box 3 for maintaining or replacing the heat dissipation fan 4, the first through port 223 can be completely blocked by the shielding member 51, effectively avoiding foreign objects (such as small parts like screws and nuts) or dust from entering the electrical cabinet 1, preventing damage to the power equipment in the electrical cabinet 1 or occurrence of safety accidents such as short circuits, effectively ensuring the personal safety of the operation and maintenance personnel, improving the safety and stability of the operation of the power equipment, and solving the technical problem of potential safety hazards existing when disassembling the heat dissipation fan 4.

[0041] By timely blocking the first through port 223, it is possible to avoid a large amount of heat from gushing out from the first through port 223 when the drawer box 3 is disassembled, slow down the speed of heat diffusion to the outside, and prevent the temperature of other compartments inside the electrical cabinet 1 from rising too fast and affecting the performance of its power equipment.

[0042] Specifically, the cooling fan 4 is detachably arranged in the drawer box 3. The drawer box 3 is slidably connected to the mounting frame body 22, and the drawer box 3 can slide into the accommodation cavity 221 through the mounting opening 222 or slide outside the mounting frame body 22, so that the drawer box 3 can be completely drawn out of the mounting frame body 22.

[0043] Furthermore, the sizes of the mounting frame body 22 and the drawer box 3 are adapted to each other, and the sizes of the mounting frame body 22 and the drawer box 3 can be flexibly adjusted according to the use environment, so that the drawer-type heat dissipation device can be applied to more use scenarios, effectively improving the practicability and adaptability of the drawer-type heat dissipation device.

[0044] Please refer to Figures 2 to 4 , furthermore, the linkage assembly 52 includes a telescopic member 521, a moving block 522, a steering block 523 and a flexible connecting member 524; the steering block 523 is arranged on the outer side wall of the mounting frame body 22, a sliding groove 224 is formed in the side wall of the mounting frame body 22, the sliding groove 224 is arranged along the moving direction of the drawer box 3, the moving block 522 is slidably arranged in the sliding groove 224, and the moving block 522 abuts against the end face of the drawer box 3 far away from the mounting opening 222; one end of the telescopic member 521 is fixedly connected to the mounting frame body 22, the other end of the telescopic member 521 is fixedly connected to one end of the shielding member 51, the other end of the shielding member 51 is connected to one end of the flexible connecting member 524, and the other end of the flexible connecting member 524 is movably connected to the steering block 523 and then fixedly connected to the moving block 522.

[0045] Specifically, the telescopic member 521 and the flexible connecting member 524 are respectively connected to two ends of the shielding member 51 in the moving direction. By providing the sliding groove 224, it plays a role in guiding and limiting the moving path of the moving block 522. Please refer to Figure 4 , the moving block 522 abuts against the end face of the drawer box 3 far away from the mounting opening 222, so that the moving block 522 can move along with the movement of the drawer box 3, and the moving direction of the moving block 522 is the same as the moving direction of the drawer box 3.

[0046] Specifically, please refer to Figures 5 to 6 , when the drawer box 3 is moved into the accommodation cavity 221, the drawer box 3 pushes the moving block 522 to slide backward along the sliding groove 224, and pulls the shielding member 51 through the flexible connecting member 524, so that the shielding member 51 moves in the opposite direction along with the movement of the moving block 522. At this time, the telescopic member 521 is stretched, and the shielding member 51 does not shield the first through opening 223;

[0047] Please continue to refer to Figures 2 to 3 When the drawer box 3 is removed from the accommodation cavity 221, since the moving block 522 abuts against the drawer box 3, under the elastic action of the telescopic member 521, the moving block 522 is pulled by the flexible connecting member 524, so that the moving block 522 moves forward following the drawer box 3, and the telescopic member 521 shortens. At this time, the shielding member 51 moves to completely shield the first through hole 223, so as to realize the linkage between the drawer box 3 and the linkage mechanism 5.

[0048] It should be noted that the moving block 522 and the drawer box 3 are only in an abutting relationship. When the drawer box 3 is completely pulled out, the drawer box 3 can be directly pulled out of the mounting frame body 22. At this time, the moving block 522 abuts against one end of the sliding groove 224 close to the mounting port 222.

[0049] Specifically and optionally, two sets of linkage components 52 can be provided, and the two sets of linkage components 52 are symmetrically arranged left and right with respect to the mounting frame body 22, which is beneficial to further improve the stability of the movement of the shielding member 51.

[0050] Please refer to Figure 7 、 Figure 8 and Figure 11 For further illustration, the moving block 522 includes an abutting block 5221 and a pin shaft 5222. The abutting block 5221 is arranged in the accommodation cavity 221. The abutting block 5221 abuts against the end face of the drawer box 3 away from the mounting port 222. One end of the pin shaft 5222 is fixedly connected to the abutting block 5221, and the other end of the pin shaft 5222 passes through the sliding groove 224 and is fixedly connected to the flexible connecting member 524. The pin shaft 5222 is slidably connected to the sliding groove 224.

[0051] The sliding connection between the moving block 522 and the sliding groove 224 is realized by arranging the pin shaft 5222, and the abutting connection between the moving block 522 and the drawer box 3 is realized by arranging the abutting block 5221.

[0052] Please refer to Figure 5 and Figure 6 For further illustration, the telescopic member 521 is a spring, and hooks 5211 are respectively arranged at both ends of the spring. One of the hooks 5211 is detachably connected to the mounting frame body 22, and the other hook 5211 is detachably connected to the shielding member 51; the turning block 523 is a fixed pulley, the flexible connecting member 524 is a pull rope, and the middle section of the flexible connecting member 524 is wound around the turning block 523.

[0053] The setting of the hook 5211 facilitates the installation and disassembly of the spring. When the drawer box 3 is pushed into the receiving cavity 221, the spring is stretched; when the drawer box 3 is pulled out of the receiving cavity 221, the spring returns to its original state under the action of the external force being removed, causing the shielding member 51 to move to completely shield the first through hole 223. At this time, the abutting block 5221 slides to abut against one end of the sliding groove 224 close to the installation port 222.

[0054] By setting the turning block 523 as a fixed pulley and the flexible connecting member 524 as a pulling rope, it is convenient to change the direction of the pulling force, so that the moving direction of the shielding member 51 is opposite to the moving direction of the moving block 522, and it is easy to install and maintain between the fixed pulley and the pulling rope, and the cost is low.

[0055] Furthermore, the middle section of the flexible connecting member 524 can be wound around the turning block 523 to improve the connection stability between the flexible connecting member 524 and the turning block 523 and prevent the flexible connecting member 524 from falling off the turning block 523. The flexible connecting member 524 is fixedly connected to the shielding member 51. Specifically, optionally, a hanging ear can be provided at one end of the shielding member 51 away from the telescopic member 521, and one end of the flexible connecting member 524 is tied tightly to the hanging ear, or a through hole can be opened at one end of the shielding member 51 away from the telescopic member 521 for the flexible connecting member 524 to pass through. After the flexible connecting member 524 passes through the through hole, a knot is tied, and the knot cannot pass through the through hole.

[0056] Please refer to Figures 5 to 7 , furthermore, a first mounting plate 227 is provided at one end of the mounting frame body 22 close to the telescopic member 521. The first mounting plate 227 is provided with a first hanging ear 2271. A second hanging ear 513 is provided on the end face of the shielding member 51 facing the first mounting plate 227. The two hooks 5211 are respectively detachably connected to the first hanging ear 2271 and the second hanging ear 513.

[0057] By providing the first hanging ear 2271 and the second hanging ear 513, it is convenient to connect with the hook 5211 and facilitate the installation and disassembly of the telescopic member 521.

[0058] Furthermore, please refer to Figures 7 to 8, the linkage mechanism 5 further includes a guide rod 53. The guide rod 53 is arranged on the moving path of the shielding member 51 to guide the displacement of the shielding member 51. One end of the guide rod 53 is fixedly arranged on the first mounting plate 227, and the other end of the guide rod 53 extends to the front side of the mounting frame body 22. The guide rod 53 penetrates through the front and rear ends of the shielding member 51, and the shielding member 51 is slidably connected to the guide rod 53. The guide rod 53 can play a role in supporting the shielding member 51 while guiding the displacement of the shielding member 51, so as to improve the stability of the shielding member 51.

[0059] Please refer to Figure 7 and Figure 10 , for further illustration, the shielding member 51 is arranged below the mounting frame body 22. A temporary storage cavity 512 is arranged inside the shielding member 51. An opening 511 is provided on the end face of the shielding member 51 facing the first through hole 223. The opening 511 is communicated with the temporary storage cavity 512, and the opening 511 is adapted to the first through hole 223.

[0060] By providing the opening 511 and the temporary storage cavity 512, when the drawer box 3 is pulled out, the shielding member 51 can move to completely shield the first through hole 223, and at this time the opening 511 is communicated with the first through hole 223. If a foreign object accidentally falls from the first through hole 223 at this time, the foreign object can fall into the temporary storage cavity 512, thereby further preventing the foreign object from falling into the interior of the electrical cabinet 1, effectively ensuring the personal safety of the operation and maintenance personnel, and further improving the safety and stability of the operation of the power equipment.

[0061] In another embodiment, when the shielding member 51 is arranged above the mounting frame body 22 (that is, the first through hole 223 is opened towards the top of the electrical cabinet 1), or when the shielding member 51 is arranged on the side of the mounting frame body 22 (that is, the first through hole 223 is opened towards the side wall of the electrical cabinet 1), at this time, the shielding member 51 can also be only provided as a solid shielding plate.

[0062] Please refer to Figure 5 , Figure 7 , Figure 8 and Figure 9, Further explanation, the mounting frame 2 further includes a fixing bracket 21, a connecting plate 225 is further provided on the upper end surface of the mounting frame body 22, and the connecting plate 225 is fixedly connected to the fixing bracket 21; a second through hole 226 is opened at one end of the mounting frame body 22 close to the fixing bracket 21, and the second through hole 226 is communicated with the accommodating cavity 221 and the first through hole 223; an installation cavity 32 for installing the heat dissipation fan 4 is provided in the drawer box 3, the installation cavity 32 is communicated with the air supply port 31, the heat dissipation fan 4 is arranged in the installation cavity 32, and one end of the mounting frame 2 opposite to the second through hole 226 is open, and the fixing bracket 21 is arranged to avoid the first through hole 223.

[0063] By providing the fixing bracket 21 and the second through hole 226, when the drawer box 3 slides into the accommodating cavity 221, the second through hole 226 is communicated with the installation cavity 32, the air supply port 31 and the first through hole 223, and the second through hole 226 is communicated with the internal space of the electrical cabinet 1. By arranging the fixing bracket 21 to avoid the first through hole 223, the fixing bracket 21 can be arranged to avoid the heat dissipation fan 4, and gas convection can be realized when the heat dissipation fan 4 is running, so as to play a role in ventilation and heat dissipation. Specifically, optionally, there are two fixing brackets 21, and the gap between the two fixing brackets 21 is the space for avoiding the heat dissipation fan 4, so as to better realize ventilation convection.

[0064] By providing the connecting plate 225, it is beneficial to the fixed connection between the mounting frame body 22 and the fixing bracket 21. Further explanation, the connecting plate 225 is arranged perpendicular to the side wall of the mounting frame body 22; preferably, the number of the connecting plates 225 is two, the two connecting plates 225 are respectively arranged at the left and right ends of the mounting frame body 22, and one end of the two connecting plates 225 is connected to the mounting frame body 22, and the other ends of the two connecting plates 225 extend in a direction away from the mounting frame body 22, so that the connecting plate 225 can be arranged to avoid the heat dissipation fan 4. Specifically, optionally, the connecting plate 225 and the fixing bracket 21 are fixedly connected by bolts.

[0065] Please refer to Figure 12 and Figure 13, Further illustration shows that a second mounting plate 228 is provided on the outer side wall of the mounting frame body 22 close to the mounting opening 222; the front end face of the drawer box 3 is flush with the front end face of the second mounting plate 228; the drawer-type heat dissipation device further includes a locking structure 6, and the locking structure 6 includes a lock catch 61 and a lock pin 62. The lock pin 62 is arranged on the front end face of the drawer box 3 and protrudes from the front end face of the drawer box 3; the lock catch 61 is rotatably connected to the second mounting plate 228, and when the lock catch 61 rotates to the front of the drawer box 3, it is snap-connected to the lock pin 62.

[0066] By providing the locking structure 6 for locking the mounting frame body 22 and the drawer box 3, when the drawer box 3 is pushed into the accommodation cavity 221, since the moving block 522 abuts against the drawer box 3, the moving block 522 has a forward thrust on the drawer box 3. The locking structure 6 can prevent the drawer box 3 from being pushed out, improving safety. Moreover, the installation of the locking structure 6 is convenient, and the steps of locking and unlocking are simple and fast.

[0067] Specifically, the locking structure 6 further includes a rotating shaft 63. One end of the rotating shaft 63 is fixedly connected to the second mounting plate 228, and the rotating shaft 63 is perpendicular to the second mounting plate 228. The other end of the rotating shaft 63 is rotatably connected to the lock catch 61, enabling the lock catch 61 to rotate around the rotating shaft 63 to the front end of the drawer box 3. A notch 611 adapted to the lock pin 62 is provided at the end of the lock catch 61 away from the rotating shaft 63. Rotating the lock catch 61 causes the notch 611 to snap onto the lock pin 62 from top to bottom, realizing the snap connection between the lock catch 61 and the lock pin 62. At this time, the locking structure 6 is in the locked state, locking the drawer box 3 and the mounting frame body 22; rotating the lock catch 61 in the opposite direction until the notch 611 is separated from the lock pin 62, at this time the locking structure 6 is in the unlocked state, enabling the drawer box 3 to be disassembled.

[0068] Further illustration shows that the number of the second mounting plates 228 is two, and the two second mounting plates 228 are respectively connected to the left and right side walls of the mounting frame body 22. The number of the locking structures 6 is also two, and the two locking structures 6 are arranged in one-to-one correspondence with the two second mounting plates 228, which can further lock the drawer box 3. It should be noted that the locking structure 6 can also adopt other forms of locking structures 6 in the prior art as long as the drawer box 3 can be locked to the mounting frame body 22, and no further limitation is made here.

[0069] Please refer to Figure 9 、 Figure 12 andFigure 13 Furthermore, it is further illustrated that a power socket 33, an indicator light 34 and a handle 35 are also provided on the front end face of the drawer box 3; the power socket 33 is electrically connected to the heat dissipation fan 4; the indicator light 34 is electrically connected to the heat dissipation fan 4.

[0070] After cutting off the electrical connection of the power socket 33, the drawer box 3 can be disassembled without cutting off the main circuit power supply in the electrical cabinet 1. It is possible to quickly and safely disassemble the drawer box 3 together with the heat dissipation fan 4 from the installation frame body 22 under the condition that the power equipment is energized, and perform maintenance or replacement; it solves the problem that it is difficult to disassemble the heat dissipation fan 4 and the main circuit power supply must be cut off to disassemble and maintain the heat dissipation fan 4.

[0071] When the heat dissipation fan 4 is running normally, the indicator light 34 is green. When the heat dissipation fan 4 fails (such as when the rotation speed of the heat dissipation fan 4 is lower than 700 rpm or the heat dissipation fan 4 stops due to a fault), the indicator light 34 goes out. Further, the drawer-type heat dissipation device can also be provided with an alarm. When the situation that the indicator light 34 goes out occurs, the alarm emits an alarm sound to indicate that the heat dissipation fan 4 has a fault. By setting the indicator light 34, it can be directly shown whether the heat dissipation fan 4 is in a normal running state, which is beneficial for the operator to quickly discover the fault problem and perform maintenance in time.

[0072] Specifically and optionally, a handle 35 is provided on the front end face of the drawer box 3, which can facilitate the operator to pull out the drawer box 3.

[0073] Please refer to Figure 1 , the present utility model also proposes a box-type substation, which includes an electrical cabinet 1 and the drawer-type heat dissipation device described in any one of the above. The electrical cabinet 1 includes the box body and the box door, and the installation frame 2 is fixedly arranged in the box body, and the installation opening 222 is arranged in the direction of the box door.

[0074] By setting the drawer-type heat dissipation device, the heat dissipation inside the electrical cabinet 1 is realized, the performance and operation stability of the box-type substation are ensured, and the technical problem of difficult disassembly and maintenance of the heat dissipation fan 4 is solved. At the same time, by setting the linkage mechanism 5 on the drawer-type heat dissipation device, it can be avoided that foreign objects fall into the interior of the box body when the drawer box 3 is unloaded, avoiding damage to power equipment or occurrence of safety accidents, effectively guaranteeing the personal safety of operation and maintenance personnel, and improving the operation safety and stability of the box-type substation.

[0075] Specifically, the first through port 223 is in communication with the interior of the cabinet, so that the cooling fan 4 can supply air for heat dissipation to the interior of the cabinet; specifically, the fixed bracket 21 is fixedly connected to the cabinet, such that the second through port 226 is in communication with the interior space of the cabinet, and a ventilation port communicating with the second through port 226 is further provided on the outer wall of the cabinet, enabling gas convection to occur when the cooling fan 4 is operating, so as to play a role in ventilation and heat dissipation.

[0076] By providing the drawer-type heat dissipation device, the drawer box 3 is slidably connected to the mounting frame body 22, and the drawer box 3 can be moved to the outside of the cabinet, enabling the drawer box 3 to be completely pulled out. When maintenance or replacement of the cooling fan 4 is required, only the electrical connection of the power socket 33 needs to be cut off to disassemble the drawer box 3, without cutting off the main circuit power supply in the electrical cabinet 1. That is, the drawer box 3 together with the cooling fan 4 can be quickly and safely disassembled from the mounting frame body 22 under the condition that the power equipment is energized, and maintenance or replacement can be carried out, realizing the replacement or maintenance of the cooling fan 4 without power interruption of the main circuit, and reducing the economic losses caused by power interruption.

[0077] Preferably, another spare drawer box 3 and cooling fan 4 can be provided. When maintenance or replacement of the cooling fan 4 in the box-type substation is required, after the drawer box 3 together with the cooling fan 4 is disassembled from the mounting frame body 22, another spare drawer box 3 and cooling fan 4 can be immediately installed, so as to continue heat dissipation inside the box-type substation, preventing the temperature from rising too high due to the suspension of heat dissipation of the box-type substation during the maintenance of the cooling fan 4, resulting in equipment failure or safety accidents.

[0078] Furthermore, the mounting opening 222 is arranged in the direction towards the cabinet door, facilitating the disassembly of the drawer box 3 from inside the cabinet, solving the problem that it is difficult for the operator to disassemble the cooling fan 4 through a narrow space, and reducing the difficulty of disassembling and maintaining the cooling fan 4. When disassembling the drawer box 3, after opening the cabinet door of the electrical cabinet 1, the drawer box 3 can be disassembled.

[0079] Furthermore, a low-voltage chamber and a high-voltage chamber are designed inside the cabinet. The box-type substation further includes a transformer body, a transformer operation chamber, and a fuse chamber. The high-voltage output terminal of the transformer body is connected to the electrical equipment in the high-voltage chamber, and the low-voltage output terminal of the transformer body is connected to the electrical equipment in the low-voltage chamber.

[0080] Further explanation is as follows. The low-voltage chamber is arranged on one side close to the cabinet door, the high-voltage chamber is arranged on one side far from the cabinet door, and the low-voltage chamber and the high-voltage chamber are separated by a partition. The drawer-type heat dissipation device is arranged at the upper end inside the box body, and the drawer-type heat dissipation device passes through the partition, so that the heat dissipation fan 4 is located above the high-voltage chamber, and the installation opening 222 is located above the low-voltage chamber. Since when the rated current is relatively large, the temperature rise is most obvious at the upper position of the high-voltage chamber, the drawer-type heat dissipation device is installed above the high-voltage chamber to perform heat dissipation work. At the same time, by making the installation opening 222 located above the low-voltage chamber, the drawer box 3 can be conveniently disassembled after the cabinet door is opened.

[0081] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A drawer-type heat dissipation device, characterized in that, It includes an installation frame, a drawer box, a heat dissipation fan and a linkage mechanism; the installation frame includes an installation frame body, the installation frame body is provided with an accommodation cavity for accommodating the drawer box, and one side of the installation frame body is provided with an installation opening for the drawer box to pass through, and the installation opening is communicated with the accommodation cavity; The heat dissipation fan is arranged in the drawer box, an air outlet is opened at the position corresponding to the air outlet end of the heat dissipation fan on the drawer box, a first through opening is opened on the installation frame body, and the air outlet is communicated with and correspondingly arranged with the first through opening; The drawer box is slidably connected with the installation frame body, the linkage mechanism includes a shielding member and a linkage component, the shielding member is located outside the installation frame body and is slidably arranged on one side of the first through opening; The linkage component is connected with the shielding member, the linkage component drives the shielding member to move, and the moving direction of the shielding member is opposite to the moving direction of the drawer box; when the drawer box moves into the accommodation cavity, the shielding member moves to one side of the first through opening to completely open the first through opening; when the drawer box moves away from the installation frame body, the shielding member moves to completely block the first through opening.

2. The drawer-type heat dissipation device according to claim 1, wherein The linkage component includes a telescopic member, a moving block, a turning block and a flexible connecting member; The turning block is arranged on the outer side wall of the installation frame body, a sliding groove is opened on the side wall of the installation frame body, the sliding groove is arranged along the moving direction of the drawer box, the moving block is slidably arranged in the sliding groove, and the moving block abuts against the end face of the drawer box far away from the installation opening; One end of the telescopic member is fixedly connected with the installation frame body, the other end of the telescopic member is fixedly connected with one end of the shielding member, the other end of the shielding member is connected with one end of the flexible connecting member, and the other end of the flexible connecting member is movably connected to the turning block and then fixedly connected with the moving block.

3. The drawer-type heat dissipation device according to claim 2, wherein The moving block includes an abutting block and a pin shaft, the abutting block is arranged in the accommodation cavity, the abutting block abuts against the end face of the drawer box far away from the installation opening, one end of the pin shaft is fixedly connected with the abutting block, the other end of the pin shaft passes through the sliding groove and is fixedly connected with the flexible connecting member, and the pin shaft is slidably connected with the sliding groove.

4. The drawer-type heat dissipation device according to claim 3, characterized in that, The telescopic member is a spring, hooks are respectively arranged at both ends of the spring, one of the hooks is detachably connected with the installation frame body, and the other hook is detachably connected with the shielding member; The turning block is a fixed pulley, the flexible connecting member is a pull rope, and the middle section of the flexible connecting member is wound around the turning block.

5. The drawer-type heat dissipation device according to claim 4, wherein, A first mounting plate is arranged at one end of the installation frame body close to the telescopic member, a first hanging ear is arranged on the first mounting plate, a second hanging ear is arranged on the end face of the shielding member facing the first mounting plate, and the two hooks are respectively detachably connected with the first hanging ear and the second hanging ear.

6. The drawer-type heat dissipation device according to claim 1, characterized in that, The shielding member is arranged below the installation frame body, a temporary storage cavity is arranged inside the shielding member, an opening is arranged on the end face of the shielding member facing the first through opening, the opening is communicated with the temporary storage cavity, and the opening is adapted to the first through opening.

7. The drawer-type heat dissipation device according to claim 1, wherein, The installation frame further includes a fixing bracket, and a connecting plate is further provided on the upper end surface of the installation frame body. The connecting plate is fixedly connected to the fixing bracket; One end of the installation frame body close to the fixing bracket is provided with a second through port, and the second through port is communicated with the accommodating cavity and the first through port; An installation cavity for installing the heat dissipation fan is provided in the drawer box. The installation cavity is communicated with the air supply port. The heat dissipation fan is arranged in the installation cavity, and one end of the installation frame opposite to the second through port is provided with an open end. The fixing bracket is arranged to avoid the first through port.

8. The drawer-type heat dissipation device according to claim 1, wherein A second mounting plate is provided on the outer side wall of the installation frame body close to the installation port; The front end surface of the drawer box is flush with the front end surface of the second mounting plate; The drawer type heat dissipation device further includes a locking structure. The locking structure includes a lock catch and a lock pin. The lock pin is arranged on the front end surface of the drawer box and protrudes from the front end surface of the drawer box; The lock catch is rotatably connected to the second mounting plate, and when the lock catch rotates to the front of the drawer box, it is engaged with the lock pin.

9. The drawer-type heat dissipation device according to claim 1, wherein, A power socket, an indicator light and a handle are further arranged on the front end surface of the drawer box; The power socket is electrically connected to the heat dissipation fan; The indicator light is electrically connected to the heat dissipation fan.

10. A box-type substation, characterized in that, It includes an electrical cabinet and the drawer type heat dissipation device according to any one of claims 1 to 9. The electrical cabinet includes a box body and a box door. The installation frame is fixedly arranged in the box body, and the installation port is arranged towards the direction of the box door.

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