Programmable direct current power supply box

Abstract

The utility model discloses a programmable DC power supply box body belongs to programmable DC power supply box body field, including the case, upper cover, support plate subassembly, fan fixed plate, the middle part of the both sides of case is inwards bent and forms the connecting plate, support plate subassembly with the connecting plate is connected, the inside of fan fixed plate is connected the case and is located the end of support plate subassembly, the upper cover cover is established in the case and is connected with the side of case. The utility model has the beneficial effect that: the utility model high internal space utilization rate can reduce the volume under the condition of installing the module of equal volume, and various high -tech environment carries out the test.

Description

Technical Field

[0001] This utility model relates to the field of programmable DC power supplies, and more particularly to a power supply enclosure. Background Technology

[0002] Programmable DC power supplies are power devices capable of providing various voltage and current combinations, widely used in laboratories, industrial automation, battery charging, and other fields. These power supplies typically support panel programming, remote control and monitoring, and multiple protection functions, such as overvoltage and current limiting protection. Programmable arbitrary power supplies are those whose functions or parameters can be controlled by computer software. "Programmable" means that the main functions of the power supply are controllable through status words set by a host computer. Most power supplies are connected via serial ports, allowing settings such as "maximum current, maximum voltage, maximum power, and actual voltage" to be configured through communication protocols. The main specifications of programmable arbitrary power supplies are programming time, programming accuracy, and programming resolution. Programmable DC power supplies combine the characteristics of desktop and system-level devices, and can be integrated with other instruments to form specialized testing systems to meet measurement needs in different situations. They can be programmed via a panel keyboard and also function as voltmeters and ohmmeters, greatly facilitating user operation. They are an optimized replacement for ordinary programmable power supplies, offering a high cost-performance ratio. For example, CN216216499U is a portable programmable DC power supply.

[0003] Current programmable DC power supply designs and installations typically prioritize multiple internal circuit modules, with the enclosure structure providing support. Because each module is independent and the electrical components vary in size, this results in redundant internal space, an excessively large overall size, unsuitability for testing in various high-precision environments, overly complex assembly, and disorganized internal connections.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is: how to solve the problems of redundant internal space and excessively large overall size of the current programmable DC power supply.

[0006] This utility model solves the above-mentioned technical problems through the following technical means:

[0007] A programmable DC power supply enclosure includes a chassis, a top cover, a support plate assembly, and a fan mounting plate; the middle of both sides of the chassis are bent inward to form a connecting plate, the support plate assembly is connected to the connecting plate, the fan mounting plate is connected to the interior of the chassis and located at the end of the support plate assembly, and the top cover is placed on the chassis and connected to the side of the chassis.

[0008] In this invention, the connecting plate formed by the inward bending of the middle of the chassis, which connects to the support plate assembly, divides the chassis into two layers: the upper layer and the lower layer of the support plate assembly. This allows for the installation of more modules within the chassis, resulting in a more compact design. Simultaneously, a fan mounting plate is located at the end of the support plate assembly, with the fan mounted on it. This allows for direct airflow with the ventilation holes at both ends of the chassis, ensuring effective heat dissipation. This invention boasts high overall internal space utilization, enabling the installation of modules of equal volume while reducing overall size, and is suitable for testing in various high-precision environments.

[0009] Preferably, the chassis includes a base plate, a front panel, and a rear panel. The base plate is U-shaped, and the front panel and the rear panel are respectively connected to the openings at both ends of the base plate.

[0010] The front and rear panels are used to mount components. Both the front and rear panels are detachable from the base plate. After the front and rear panels are assembled with their respective PCB boards and other components, they are installed into the housing as sub-components. This allows the overall installation to be carried out simultaneously, greatly saving assembly time.

[0011] Preferably, a first slot is formed in the middle of both sides of the chassis, and a connecting plate is formed by bending inward at the bottom edge of the first slot. The connecting plate is L-shaped. A second slot is formed at the bottom of both sides of the support plate assembly. After the connecting plate is inserted into the second slot, it is connected to the inner side of the support plate assembly.

[0012] Preferably, the bottom edge of the first slot also includes an inwardly bent flat plate, which supports the support plate assembly.

[0013] This utility model uses a flat plate to support the support plate assembly, and a connecting plate to connect with the support plate assembly to ensure the reliability of the connection. By opening the first slot on both sides of the chassis, a certain degree of weight reduction is achieved.

[0014] Preferably, the support plate assembly includes a support base frame, a support epoxy board, and a support beam. The support base frame is U-shaped, and the support epoxy boards are connected at intervals within the support base frame. Air ducts are formed between adjacent support epoxy boards and between the support epoxy boards and the sides of the support base frame. The support beam connects the support base frame and the top of the support epoxy boards.

[0015] Air ducts are formed between adjacent supporting epoxy boards and between the supporting epoxy boards and the sides of the supporting base frame. These ducts are aligned with the fans on the fan mounting plate to form a direct airflow, thus meeting the heat dissipation requirements of the module.

[0016] The support base plate has a third slot on both sides, which serves as a handle. During installation, the handle can be inserted into the third slot to lift the plate, making installation easier.

[0017] Preferably, it also includes a bottom support frame, which connects the inside of the chassis and the bottom surface of the support plate assembly.

[0018] The bottom support frame is used to reinforce the support plate assembly and prevent the support plate assembly from sinking and interfering with the modules below.

[0019] Preferably, the fan mounting plate includes a plurality of windows facing the support plate assembly.

[0020] Preferably, it also includes a control board located inside the chassis and at the end of the support plate assembly away from the fan mounting plate, and the control board is connected to the support plate assembly.

[0021] After the control board is connected to the side of the support frame, it is installed into the chassis together.

[0022] Preferably, the control board includes multiple upwardly bent guide plates at one end near the fan mounting plate.

[0023] The deflector can direct airflow into areas that require enhanced cooling, maximizing the effectiveness of air cooling.

[0024] Preferably, the system also includes multiple cable trays arranged along the length of the chassis and connected to the inner side of the chassis.

[0025] The cable tray serves two purposes: routing cables and acting as an airflow baffle, ensuring that the fan's airflow primarily targets heat-generating components.

[0026] The advantages of this utility model are:

[0027] In this invention, the connecting plate is formed by bending inward in the middle of the chassis. This connecting plate connects to the support plate assembly, creating a two-layer structure within the chassis: the upper layer and the lower layer of the support plate assembly. This allows for the installation of more modules within the chassis, resulting in a more compact design. Simultaneously, a fan mounting plate is located at the end of the support plate assembly, and the fan is mounted on this plate, creating a direct airflow with the ventilation holes at both ends of the chassis, thus ensuring effective heat dissipation. This invention boasts high overall internal space utilization, allowing for the installation of modules of equal volume while reducing overall size, making it suitable for testing in various high-precision environments.

[0028] The front and rear panels are used to mount components. Both the front and rear panels are detachable from the base plate. After the front and rear panels are assembled with their respective PCB boards and other components, they are installed into the housing as sub-components. This allows the overall installation to be carried out simultaneously, greatly saving assembly time.

[0029] An air duct is formed between adjacent supporting epoxy boards and between the supporting epoxy boards and the sides of the supporting base frame. It is aligned with the fan on the fan mounting plate to form a direct airflow, thereby meeting the heat dissipation requirements of the module.

[0030] This utility model uses a flat plate to support the support plate assembly, and a connecting plate to connect the support plate assembly to ensure the reliability of the connection. By opening the first slot on both sides of the chassis, a certain degree of weight reduction is achieved.

[0031] The deflector can direct airflow into areas that require enhanced cooling, maximizing the effectiveness of air cooling.

[0032] The cable tray serves two purposes: routing cables and acting as an airflow baffle, ensuring that the fan's airflow primarily targets heat-generating components. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the programmable DC power supply housing according to an embodiment of the present invention;

[0034] Figure 2 This is an exploded view of the programmable DC power supply enclosure according to an embodiment of the present invention;

[0035] Figure 3 This is a cross-sectional view of the programmable DC power supply enclosure according to an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of the chassis structure according to an embodiment of the present invention;

[0037] Figure 5 This is a schematic diagram of the connection between the chassis and the support plate assembly in an embodiment of this utility model;

[0038] Figure 6 This is a schematic diagram showing the connection between the support plate assembly and the control plate in an embodiment of this utility model;

[0039] Figure 7 This is a schematic diagram of the control board of this utility model embodiment;

[0040] Numbering on the map:

[0041] 1. Chassis; 11. Base plate; 111. First slot; 112. Connecting plate; 113. Flat plate; 12. Front panel; 13. Rear panel;

[0042] 2. Top cover;

[0043] 3. Support plate assembly; 31. Support base frame; 311. Second groove; 312. Third groove; 32. Support epoxy board; 33. Support beam;

[0044] 4. Fan mounting plate; 5. Control board; 51. Air guide plate. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0046] Example 1:

[0047] like Figure 1 , Figure 2 , Figure 3 As shown, a programmable DC power supply enclosure includes a chassis 1, a top cover 2, a support plate assembly 3, and a fan mounting plate 4. The entire power supply enclosure has a rectangular structure. The top cover 2 covers the chassis 1 and is connected to the side of the chassis 1. The support plate assembly 3 and the fan mounting plate 4 are located inside the chassis 1 and connected to the chassis 1. The fan mounting plate 4 and the support plate assembly 3 are arranged along the length of the power supply enclosure. Both ends of the chassis 1 have ventilation grilles. The fan mounting plate 4 is used to mount a fan, thereby realizing a through-flow air duct and forming direct air cooling for the internal modules of the chassis 1.

[0048] like Figure 4 As shown, the chassis 1 includes a base plate 11, a front panel 12, and a rear panel 13. The base plate 11 is U-shaped, and the front panel 12 and the rear panel 13 are respectively connected to the openings at both ends of the base plate 11.

[0049] The front panel 12 and the rear panel 13 are used to install components. Both the front panel 12 and the rear panel 13 are detachable from the base plate 11. After the front panel 12 and the rear panel 13 are assembled with their respective PCB boards and other components, they are installed into the housing as sub-components. This allows the overall installation to be carried out simultaneously, greatly saving assembly time.

[0050] The front panel 12 can also be equipped with a display mounting plate for mounting a display screen.

[0051] Specifically, the base plate 11 has its two sides bent upwards, and a first slot 111 is formed in the middle of the bent side plate. The first slot 111 is roughly rectangular and can form triangular shapes at both ends. A connecting plate 112 is formed by bending inwards at the bottom edge of the first slot 111. The bending method is a horizontal bend followed by an upward bend, making the connecting plate 112 L-shaped. A second slot 311 is formed at the bottom of both sides of the support plate assembly 3. After the connecting plate 112 is inserted into the second slot 311, it is bolted or riveted to the inner side of the support plate assembly 3. A flat plate 113 is also included at the bottom edge of the first slot 111. The flat plate 113 is horizontal and is used to support the support plate assembly 3. In this embodiment, the support plate assembly 3 is supported by the flat plate 113, and the connecting plate 112 is connected to the support plate assembly 3 to ensure the reliability of the connection. The first slot 111 on both sides of the chassis 1 achieves a certain degree of weight reduction.

[0052] like Figure 5 , Figure 6 As shown, the support plate assembly 3 includes a support base frame 31, support epoxy boards 32, and support beams 33. The support base frame 31 is U-shaped. The support epoxy boards 32 are connected at intervals within the support base frame 31, forming air ducts between adjacent support epoxy boards 32 and between the sides of the support epoxy boards 32 and the support base frame 31. The support beams 33 connect the top of the support base frame 31 and the top of the support epoxy boards 32. The air ducts formed between adjacent support epoxy boards 32 and between the support epoxy boards 32 and the sides of the support base frame 31 are aligned with the fan on the fan mounting plate 4, forming a direct airflow to meet the heat dissipation requirements of the module.

[0053] The support base 31 has second slots 311 on both sides of its bottom for insertion into the connecting plate 112 and connection by bolts or rivets. The support base 31 has third slots 312 on both sides, which serve as handles. During installation, the handles can be inserted into the third slots 312 to lift the plate, making installation easier.

[0054] The supporting epoxy board 32 can be welded to the supporting base frame 31. Some notches can be provided on the top of the supporting epoxy board 32, and the supporting beam 33 is snapped into the notches. The two ends of the supporting beam 33 are connected to the side of the supporting base frame 31 by bolts or rivets. The supporting beam 33 is mainly used to reinforce the entire supporting board assembly 3.

[0055] The support beam 33 ensures the flatness of the top cover 2, provides sufficient safety clearance between the interior and components, and guarantees the rigor of the appearance.

[0056] It also includes a bottom support frame, which connects the interior of the chassis 1 and the bottom surface of the support plate assembly 3. The bottom support frame is used to reinforce the support plate assembly 3 and prevent the support plate assembly 3 from sinking and interfering with the modules below.

[0057] The fan mounting plate 4 includes multiple windows facing the support plate assembly 3. The fan mounting plate 4 has a 7-shaped structure with folded edges at both ends, which are connected to the inner side of the base plate 11 by bolts or rivets.

[0058] In this embodiment, the connecting plate 112 is formed by bending inward in the middle of the chassis 1. The connecting plate 112 is connected to the support plate assembly 3, which divides the chassis 1 into two layers: the upper layer and the lower layer of the support plate assembly 3. This allows for the installation of more modules within the chassis 1, making it more compact. Simultaneously, a fan mounting plate 4 is provided at the end of the support plate assembly 3, and the fan is mounted on the fan mounting plate 4, forming a direct airflow with the ventilation holes at both ends of the chassis 1, thus ensuring effective heat dissipation. This embodiment has a high overall internal space utilization rate, allowing for a smaller overall size while installing modules of equal volume, enabling testing in various high-precision environments.

[0059] Example 2:

[0060] like Figure 2 , Figure 6 As shown, a programmable DC power supply enclosure also includes a control board 5, which is located inside the enclosure 1 and at one end of the support plate assembly 3 away from the fan mounting plate 4. The control board 5 is connected to the support plate assembly 3.

[0061] Specifically, the two ends of the control board 5 are folded downwards, and the folded edges are connected to the side of the support base 31 by bolts or rivets. The control board 5 is placed horizontally and forms a roughly parallel structure with the support base 31. After the control board 5 is connected to the side of the support base 31, it is installed into the chassis 1 together.

[0062] like Figure 6 , Figure 7 As shown, the control board 5 has multiple straight grooves cut into one end near the fan mounting plate 4, and the portion between the straight grooves is bent upwards to form a guide plate 51. The guide plate 51 can direct airflow into the area that needs enhanced cooling, maximizing the effect of air cooling.

[0063] In Embodiments 1 and 2 described above, a programmable DC power supply enclosure further includes multiple cable trays arranged along the length of the enclosure 1 and connected to the internal side surfaces of the enclosure 1. The cable trays serve both as wiring channels and as airflow baffles, ensuring that the fan airflow primarily targets heat-generating components.

[0064] The chassis 1 and the top cover 2 have two sets of ventilation holes on each side near the front panel 12 and the rear panel 13, which is both aesthetically pleasing and practical. The above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A programmable DC power supply enclosure, characterized in that, The device includes a chassis, a top cover, a support plate assembly, and a fan mounting plate. The middle of both sides of the chassis are bent inward to form a connecting plate. The support plate assembly is connected to the connecting plate. The fan mounting plate is connected to the interior of the chassis and located at the end of the support plate assembly. The top cover covers the chassis and is connected to the side of the chassis.

2. The programmable DC power supply enclosure according to claim 1, characterized in that, The chassis includes a base plate, a front panel, and a rear panel. The base plate is U-shaped, and the front panel and the rear panel are respectively connected to the openings at both ends of the base plate.

3. A programmable DC power supply enclosure according to claim 1 or 2, characterized in that, The chassis has a first slot in the middle of both sides, and a connecting plate is formed by bending inward at the bottom edge of the first slot. The connecting plate is L-shaped. The support plate assembly has a second slot at the bottom of both sides. After the connecting plate is inserted into the second slot, it is connected to the inner side of the support plate assembly.

4. The programmable DC power supply enclosure according to claim 3, characterized in that, The bottom edge of the first slot also includes an inwardly bent flat plate that supports the support plate assembly.

5. A programmable DC power supply enclosure according to claim 1, characterized in that, The support plate assembly includes a support base frame, a support epoxy board, and a support beam. The support base frame is U-shaped and the support epoxy boards are connected at intervals within the support base frame. Air ducts are formed between adjacent support epoxy boards and between the support epoxy boards and the sides of the support base frame. The support beam connects the support base frame and the top of the support epoxy boards.

6. The programmable DC power supply enclosure according to claim 1, characterized in that, It also includes a bottom support frame, which connects the interior of the chassis and the bottom surface of the support plate assembly.

7. A programmable DC power supply enclosure according to claim 1, characterized in that, The fan mounting plate includes multiple windows facing the support plate assembly.

8. A programmable DC power supply enclosure according to claim 1, characterized in that, It also includes a control board located inside the chassis and at the end of the support plate assembly away from the fan mounting plate, and the control board is connected to the support plate assembly.

9. A programmable DC power supply enclosure according to claim 8, characterized in that, The control board includes multiple upward-bent guide plates at one end near the fan mounting plate.

10. A programmable DC power supply enclosure according to claim 1, characterized in that, It also includes multiple cable trays, which are arranged along the length of the chassis and connected to the inner side of the chassis.

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