A DC converter that is easy to wire

Abstract

The present application discloses a DC converter which is easy to connect to the wiring, comprising an electrical shell in which electronic devices are placed and a cable with a quick plug, and also comprising an outer shell, which is covered on the outside of the electrical shell to form a heat exhaust cavity between the outer wall of the electrical shell; an exhaust port and an air inlet, both of which are arranged on the outer shell and connected to the heat exhaust cavity; a fan, which is installed in the exhaust port, and also comprises a storage bin, which is arranged on the outer wall of the outer shell and stores volatile liquid inside; a moving scraper, which is driven by an actuator and can slide back and forth in the heat exhaust cavity; a liquid discharge device, which is used to make the volatile liquid in the storage bin flow through the moving scraper to be smeared on the surface of the electrical shell. In daily use, by adopting the above technical solution, the fan and the actuator are continuously operated, the volatile liquid is evenly smeared on the surface of the electrical shell, and the airflow flows through the heat exhaust cavity along a fixed trajectory, and the volatile liquid evaporates and absorbs heat to efficiently dissipate the heat of the electrical shell.

Description

Technical Field

[0001] The invention relates to a DC converter which is convenient for wiring. Background Art

[0002] A DC / DC converter is a switching power supply chip. It uses the energy storage characteristics of capacitors and inductors to perform high-frequency switching through a controllable switch (MOSFET, etc.) to store the input electrical energy in the capacitor (inductor). When the switch is disconnected, the electrical energy is released to the load to provide energy. Its output power or voltage capacity is related to the duty cycle (the ratio of the switch on time to the entire switch cycle). Switching power supplies can be used for boosting and bucking, for example:

[0003] The Chinese utility model patent with publication number CN211830550U discloses a fully sealed aluminum profile DC converter, which includes an aluminum profile, a sealing plate, a mounting cavity, a plurality of guide posts, a guide groove, a limiter and a sealant. The sealant is provided to ensure the sealing and the overall structural strength of the sealing plate, but the defects are as follows:

[0004] The DC converter will generate a lot of heat during use. Failure to discharge the excess heat in time will result in poor voltage regulation and a short service life of the DC converter. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art.

[0006] The present application provides a DC converter that is easy to wire, including an electrical housing in which electronic components are placed and a cable with a quick plug, and also includes:

[0007] The housing is arranged outside the electrical housing and forms a heat dissipation cavity with the outer wall of the electrical housing;

[0008] The exhaust port and the air inlet are both arranged on the outer shell and connected to the heat exhaust chamber;

[0009] A fan is installed in the exhaust port.

[0010] Also includes:

[0011] A storage bin, which is arranged on the outer wall of the shell and stores the volatile liquid inside;

[0012] A moving scraper, which is driven by an actuator and can slide back and forth in the heat exhaust chamber;

[0013] The liquid discharge device is used to allow the volatile liquid in the storage bin to flow through the moving scraper and be smeared on the surface of the electrical shell.

[0014] The actuator includes:

[0015] A screw hole is provided on the moving scraper;

[0016] The screw rod is matched with the screw hole and driven to rotate by the motor.

[0017] Drainage devices include:

[0018] A pair of drainage chambers are symmetrically arranged on both sides of the moving scraper;

[0019] A pair of connecting pipes, one end of which is connected to the inner cavity of the storage bin, and the other end of which is respectively movable through the left and right ends of the moving scraper and fixedly connected to the end wall of the heat exhaust cavity away from the storage bin;

[0020] A plurality of drainage holes are arranged at intervals on the side walls of each connecting pipe;

[0021] A plurality of discharge holes are arranged at intervals on the side wall of the moving scraper facing the electrical housing.

[0022] Also includes:

[0023] A plurality of floating blocks can be respectively installed in the respective drainage holes in a floating manner;

[0024] A pair of push units are respectively installed in each drainage cavity in a floating manner and are used to push the corresponding floating block so that the corresponding drainage hole connects the inner cavity of the connecting pipe with the corresponding drainage cavity.

[0025] Floating block includes:

[0026] A hollow block body, with a transfer chamber inside, one end of which can be floated in the drain hole, and a return spring is provided between the other end and the inner wall of the connecting pipe;

[0027] A plurality of transfer holes are arranged at intervals on the peripheral side of the hollow block;

[0028] A plurality of transfer holes 2 are arranged at intervals on the end surface of the hollow block away from the return spring;

[0029] Among them, each transfer hole 1 and each transfer hole 2 are connected to the transfer cavity.

[0030] Floating blocks also include:

[0031] The retaining ring is fixedly mounted on the outer peripheral wall of the hollow block and is located between the plurality of transfer holes and the return spring.

[0032] The push unit includes:

[0033] A floating plate slidably mounted in the drainage chamber via a floating spring;

[0034] The push convex block is fixedly mounted on the floating plate and can extend into the drainage hole.

[0035] Also includes:

[0036] The high-density sponge is fixedly mounted on the outer wall of the moving scraper facing the electrical housing.

[0037] Also includes:

[0038] A plurality of ridges are arranged at intervals on the outer wall of the electrical housing and are parallel to a pair of connecting pipes.

[0039] The beneficial effects of the present invention are as follows:

[0040] 1. Through the setting of the outer shell, heat exhaust cavity, exhaust port, air inlet and fan, the heat dissipation airflow flows along a fixed track through the surface of the electrical shell to ensure the stability of heat dissipation of electronic devices in the electrical shell;

[0041] 2. By setting up a storage bin, a mobile scraper and a liquid discharge device, a volatile liquid is applied to the surface of the electrical shell. The volatile liquid evaporates and absorbs heat under the action of the heat dissipation airflow, thereby improving the heat dissipation effect of the heat dissipation airflow on the electrical shell;

[0042] 3. Through the arrangement of a pair of drainage chambers, a pair of connecting pipes, a plurality of drainage holes, a plurality of discharge holes, a plurality of floating blocking blocks and a pair of push units, the volatile liquid can be evenly applied to the surface of the electrical shell to ensure uniform heat dissipation at all locations on the surface of the electrical shell;

[0043] 4. Through the arrangement of high-density sponge and a number of convex ridges, the volatile liquid can be evenly applied on the surface of the electrical shell, thereby improving the heat dissipation area and heat dissipation efficiency of the electrical shell surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a front view of a DC converter that is easy to connect in an embodiment of the present application;

[0045] Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0046] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along the BB direction.

[0047] Reference numerals

[0048] 101-electrical shell, 102-quick plug, 103-cable, 104-housing, 105-heat exhaust chamber, 106-exhaust port, 107-air inlet, 108-fan, 109-storage bin, 110-moving scraper, 2-actuator, 201-screw hole, 202-screw, 203-motor, 3-drainage device, 301-drainage chamber, 302-connecting pipe, 303-drainage hole, 304-discharge hole, 4-floating block, 401-hollow block, 402-transfer chamber, 403-reset spring, 404-transfer hole one, 405-transfer hole two, 406-speed ring, 5-push unit, 501-floating plate, 502-floating spring, 503-push bump, 6-high-density sponge, 7-convex ridge. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0050] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0051] The server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0052] Embodiment 1:

[0053] like Figure 1 As shown, an embodiment of the present application provides a DC converter that is easy to wire, including an electrical shell 101 in which electronic devices are placed and a cable 103 with a quick plug 102, and also includes a shell 104, which is covered on the outside of the electrical shell 101 and forms a heat exhaust cavity 105 between the shell 104 and the outer wall of the electrical shell 101; an exhaust port 106 and an air inlet 107, both of which are arranged on the shell 104 and connected to the heat exhaust cavity 105; a fan 108, which is installed in the exhaust port 106.

[0054] Furthermore, it also includes a storage bin 109, which is arranged on the outer wall of the outer shell 104 and stores volatile liquid inside; a movable scraper 110, which is driven by an actuator 2 and can slide back and forth in the heat exhaust chamber 105; and a liquid discharge device 3, which is used to allow the volatile liquid in the storage bin 109 to flow through the movable scraper 110 and be smeared on the surface of the electrical shell 101.

[0055] Furthermore, the actuator 2 includes a screw hole 201 , which is disposed on the moving scraper 110 ; a screw rod 202 , which is in transmission cooperation with the screw hole 201 and driven to rotate by a motor 203 .

[0056] Furthermore, the drainage device 3 includes a pair of drainage chambers 301, which are symmetrically arranged on both sides of the movable scraper 110; a pair of connecting pipes 302, one end of which is connected to the inner cavity of the storage bin 109, and the other end can be movably inserted through the left and right ends of the movable scraper 110, and then fixedly connected to the end wall of the heat discharge chamber 105 away from the storage bin 109; a plurality of drainage holes 303, which are arranged at intervals on the side walls of each connecting pipe 302; and a plurality of discharge holes 304, which are arranged at intervals on the side wall of the movable scraper 110 facing the electrical shell 101.

[0057] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the fan 108 is running, so that negative pressure is generated in the heat exhaust chamber 105, and the external air forms an airflow, which enters from the air inlet 107 and flows through the heat exhaust chamber 105. After cooling the electrical shell 101, the hot air flow is discharged from the heat exhaust chamber 105 from the exhaust port 106. At the same time, the motor 203 is running, driving the screw 202 to rotate, cooperating with the screw hole 201, and driving the moving scraper 110 to slide back and forth in the heat exhaust chamber 105. The volatile liquid (which can be alcohol) in the storage bin 109 passes through each connecting pipe 302, each drainage hole 303, each drainage chamber 301 and each discharge hole 304, and is coated on the surface of the electrical shell 101 as the moving scraper 110 moves. When the airflow passes through the heat exhaust chamber 105, the volatile liquid is volatilized, and the surface of the electrical shell 101 is cooled.

[0058] One end of the cable 103 can be quickly connected to the vehicle wiring harness through the quick plug 102 , and the other end is connected to the electronic device in the electrical housing 101 .

[0059] Embodiment 2:

[0060] like Figure 2 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it further includes a plurality of floating blockers 4, which can be floated and installed in each drainage hole 303; a pair of push units 5, which can be floated and installed in each drainage cavity 301, are used to push the corresponding floating blockers 4 so that the corresponding drainage holes 303 are connected to the inner cavity of the connecting pipe 302 and the corresponding drainage cavity 301.

[0061] Furthermore, the floating block 4 includes a hollow block 401, which is provided with a transfer chamber 402 inside. One end of the transfer block 4 can be floated in the drainage hole 303, and a reset spring 403 is provided between the other end and the inner wall of the connecting tube 302; a plurality of transfer holes 1 404 are arranged at intervals on the circumference of the hollow block 401; a plurality of transfer holes 2 405 are arranged at intervals on the end surface of the hollow block 401 away from the reset spring 403, and each transfer hole 1 404 and each transfer hole 2 405 are connected to the transfer chamber 402.

[0062] Furthermore, the floating block 4 also includes a retaining ring 406 , which is fixedly mounted on the outer peripheral wall of the hollow block 401 and is located between the plurality of transfer holes 404 and the return spring 403 .

[0063] Furthermore, the push unit 5 includes a floating plate 501 which is slidably mounted in the drainage cavity 301 via a floating spring 502 ; and a push protrusion 503 which is fixedly mounted on the floating plate 501 and can extend into the drainage hole 303 .

[0064] In this embodiment of the present application, due to the adoption of the above-mentioned structure, a plurality of floating blockages 4 and corresponding drainage holes 303 are arranged at intervals along the length direction of the corresponding connecting pipe 302. When the movable scraper 110 moves under the drive of the actuator 2, each ejection unit also moves accordingly, and cooperates with each floating blockage 4 passing through during the movement, so that when each drainage hole 303 corresponds to the corresponding drainage cavity 301, it is connected to the corresponding drainage cavity 301, and when it does not correspond to the drainage cavity 301, it is closed to prevent the waste of volatile liquid;

[0065] When the drainage hole 303 does not correspond to the corresponding drainage cavity 301, the corresponding floating block 4 is mostly in the drainage hole 303 under the action of the corresponding reset spring 403, each transfer hole 404 is located in the drainage hole 303, and the corresponding stop ring 406 abuts against the inner wall of the connecting pipe 302. At this time, the drainage hole 303 is completely closed;

[0066] When the drainage hole 303 corresponds to the corresponding drainage cavity 301, the floating plate 501 and the pushing protrusion 503 slide into the drainage hole 303 under the action of the corresponding floating spring 502, and the pushing protrusion 503 abuts against the end of the hollow block 401 in the drainage hole 303, and pushes the hollow block 401 into the inner cavity of the connecting tube 302, so that the corresponding baffle ring 406 is out of contact with the inner wall of the connecting tube 302, and each transfer hole 404 together with the transfer cavity 402 and the inner cavity of the connecting tube 302, the coolant can enter the drainage cavity 301 after passing through the transfer hole 1 404, the transfer cavity 402 and the connecting hole 2.

[0067] Embodiment 3:

[0068] like Figure 3As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, a high-density sponge 6 is also included, which is fixedly mounted on the outer wall of the moving scraper 110 facing the electrical housing 101.

[0069] Furthermore, it also includes a plurality of ridges 7 which are arranged at intervals on the outer wall of the electrical housing 101 and are parallel to the pair of connecting pipes 302 .

[0070] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the surface area of ​​the electrical shell 101 is increased by setting a plurality of ridges 7, so that the application area of ​​the volatile liquid is increased, and the high-density sponge 6 can make the volatile liquid evenly applied to the electrical shell 101 and the surfaces of each ridge 7, avoiding the volatile liquid from being discharged too quickly and resulting in low utilization rate.

[0071] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0072] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A DC converter that is easy to wire, comprising an electrical housing (101) in which electronic components are placed and a cable (103) with a quick plug (102), characterized in that: Also includes: An outer shell (104) is arranged outside the electrical shell (101) and forms a heat dissipation cavity (105) with the outer wall of the electrical shell (101); An exhaust port (106) and an air inlet (107) are both arranged on the housing (104) and are connected to the heat exhaust chamber (105); a fan (108) installed in the exhaust port (106); Also includes: A storage bin (109), which is arranged on the outer wall of the housing (104) and stores volatile liquid therein; A movable scraper (110) driven by an actuator (2) and capable of sliding back and forth in the heat exhaust chamber (105); A liquid discharge device (3) for allowing the volatile liquid in the storage bin (109) to flow through a moving scraper (110) and be smeared on the surface of the electrical housing (101); The actuator (2) comprises: A screw hole (201) provided on the moving scraper (110); A screw rod (202) is in driving cooperation with the screw hole (201) and is driven to rotate by a motor (203); The liquid discharge device (3) comprises: A pair of drainage cavities (301) symmetrically arranged on both sides of the interior of the moving scraper (110); A pair of connecting pipes (302), one end of each of which is connected to the inner cavity of the storage bin (109), and the other end of each of which is respectively movably inserted through the left and right ends of the movable scraper (110) and fixedly connected to the end wall of the heat exhaust cavity (105) away from the storage bin (109); A plurality of drainage holes (303) are arranged at intervals on the side walls of each of the connecting pipes (302); A plurality of discharge holes (304) are arranged at intervals on a side wall of the moving scraper (110) facing the electrical housing (101); Also includes: A plurality of floating blockers (4) are respectively installed in a floating manner in each of the drainage holes (303); A pair of push units (5) are respectively installed in a floating manner in each of the drainage chambers (301) and are used to push the corresponding floating block (4) so ​​that the corresponding drainage hole (303) is connected to the inner cavity of the connecting pipe (302) and the corresponding drainage chamber (301); The floating block (4) comprises: A hollow block (401) is provided with a transfer chamber (402) inside thereof, one end of which can be floatably mounted in the drainage hole (303), and a return spring (403) is provided between the other end and the inner wall of the connecting pipe (302); A plurality of transfer holes (404) are arranged at intervals on the circumference of the hollow block (401); A plurality of transfer holes (405) are arranged at intervals on the end surface of the hollow block (401) away from the return spring (403); Wherein, each of the transfer holes 1 (404) and each of the transfer holes 2 (405) are connected to the transfer chamber (402); The floating block (4) further comprises: A retaining ring (406) is fixedly mounted on the outer peripheral wall of the hollow block (401) and is located between the plurality of transfer holes (404) and the return spring (403); The pushing unit (5) comprises: A floating plate (501) slidably mounted in the drainage chamber (301) via a floating spring (502); A push projection (503) is fixedly mounted on the floating plate (501) and can extend into the drainage hole (303).

2. A DC converter that is easy to connect according to claim 1, characterized in that: Also includes: A high-density sponge (6) is fixedly mounted on the outer wall of the moving scraper (110) facing the electrical housing (101).

3. A DC converter that is easy to connect according to claim 2, characterized in that: Also includes: A plurality of ridges (7) are arranged at intervals on the outer wall of the electrical housing (101) and are parallel to the pair of connecting pipes (302).

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