Miniaturized light dummy load

Abstract

The utility model relates to a miniaturized light dummy load which comprises a box body and two resistor body assemblies, the two resistor body assemblies are arranged on the box body in parallel, a series connection plate is arranged between the two resistor body assemblies, and the two ends of the series connection plate are detachably connected to the two resistor body assemblies respectively. First connecting plates are arranged at the upper ends of the resistor body assemblies, the upper ends of the first connecting plates extend out of the box body, and the series connecting plates are connected to the first connecting plates on the two resistor body assemblies respectively. The method has the effect of improving the operation convenience.

Description

Technical Field

[0001] The present application relates to the technical field of dummy load devices, and in particular to a miniaturized and portable dummy load. Background Art

[0002] The miniaturized adjustable portable air-cooled dummy load is a device with a resistance value that can be easily switched between 5Ω and 10Ω, and is used to test and simulate the load device of electronic devices or power supplies. It dissipates heat from the resistance device through air cooling. During the testing and evaluation of electronic devices, a simulated load is required to verify the performance and stability of the device under specific load conditions, and the resistance value can be adjusted according to the test requirements. The air-cooled dummy load is a high-power load that absorbs and converts the energy output by the power supply and effectively dissipates the heat generated by the resistance device through an air-cooling system.

[0003] Existing dummy loads usually have two sets of resistor body components, and a series connection plate is arranged between the two sets of resistor body components. Different resistance values can be switched by connecting the two sets of resistor body components in series. When switching, the box needs to be opened and operations are carried out inside the box, resulting in inconvenient operation. Summary of the Utility Model

[0004] In order to improve the convenience of operation, the present application provides a miniaturized and portable dummy load.

[0005] The miniaturized and portable dummy load provided by the present application adopts the following technical solutions:

[0006] A miniaturized and portable dummy load includes a box body and two sets of resistor body components. The two sets of resistor body components are both arranged on the box body and are arranged side by side. A series connection plate is arranged between the two sets of resistor body components, and both ends of the series connection plate are detachably connected to the two sets of resistor body components respectively.

[0007] By adopting the above technical solution, a first connection plate is arranged on the resistor body component, and the upper end of the first connection plate extends outside the box body. The two resistor body components are connected in series through the series connection plate on the box body, so as to switch different resistance values and improve the convenience of operation.

[0008] Optionally, the resistor body component includes a support member, resistor body units, and a resistor plate. There are two sets of resistor body units, and each set of resistor body units includes several. The several resistor body units are distributed along the vertical direction. The resistor plate is located at both ends of the resistor body units and connects the several resistor body units, and the resistor plate is fixed on the support member.

[0009] By adopting the above technical solution, multiple resistor body units are connected by the resistor plate and fixed on the support member, and then installed in the box body through the support member.

[0010] Optionally, a cooling fan is provided inside the box body. An installation bracket is fixed to the back of the cooling fan, and the installation bracket is fixed inside the box body.

[0011] By adopting the above technical solution, a cooling fan is provided inside the box body, and the resistor body assembly is cooled by the cooling fan, thereby improving the service life of the resistor body assembly.

[0012] Optionally, clamping rods are provided at both ends of the series connection connecting plate. Clamping holes for the clamping rods to be clamped are formed in the first connecting plates. The clamping rods are provided with hooking members for hooking on the first connecting plates.

[0013] By adopting the above technical solution, when two resistor body assemblies are connected in series, the two clamping rods on the series connection connecting plate are respectively clamped in the clamping holes on the two first connecting plates, and then the hooking members are hooked on the first connecting plates to achieve connection, thereby achieving series connection.

[0014] Optionally, the hooking members are hooking rods. A plurality of hooking rods are provided, and the plurality of hooking rods are arranged in a circumferential array around the axis of the clamping rod. The hooking rod includes a transverse portion and a longitudinal portion. The middle of the transverse portion is hinged to the clamping rod. One end of the longitudinal portion is fixedly connected to the transverse portion, and the other end of the longitudinal portion extends away from the axis of the clamping rod. The clamping rod is provided with a driving member for driving the transverse portion to rotate.

[0015] By adopting the above technical solution, after the clamping rod is clamped in the clamping hole, the driving member drives the transverse portion to rotate through the Forbidden City, thereby driving the longitudinal portion to move and hooking on the first connecting plate to fix the series connection connecting plate.

[0016] Optionally, the driving member is a threaded sleeve. The threaded sleeve is threadedly connected to the clamping rod. A driving rod is provided at one end of the transverse portion away from the longitudinal portion. The driving rod extends away from the axis of the clamping rod. A wedge surface for forcing the driving rod to move towards the axis of the clamping rod is provided on the inner side surface of the threaded sleeve.

[0017] By adopting the above technical solution, when the threaded sleeve is rotated, the threaded sleeve can move along the axis direction of the clamping rod, thereby forcing the driving rod to move through the wedge surface, and further forcing the transverse portion to rotate.

[0018] Optionally, the transverse portion is provided with an elastic member for forcing the plurality of longitudinal portions to move towards each other.

[0019] By adopting the above technical solution, when unlocking the series connection connecting plate, only the threaded sleeve needs to be loosened, and the elastic member can force the transverse portion to rotate to drive the longitudinal portion to release the hooking on the first connecting plate.

[0020] In summary, the utility model has the following beneficial effects:

[0021] 1. A first connecting plate is arranged on the resistor body assembly, and the upper end of the first connecting plate extends outside the box body. By connecting the connecting plates in series, two resistor body assemblies are connected in series in the box body, so as to switch different resistance values and improve the convenience of operation;

[0022] 2. Rotate the threaded sleeve, and the threaded sleeve can move along the axial direction of the clamping rod, so as to force the driving rod to move through the wedge-shaped surface, and then force the transverse part to rotate, so that the longitudinal part is hooked on the first connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of Embodiment 1;

[0024] Figure 2 is a schematic structural diagram of the resistor body assembly in Embodiment 1;

[0025] Figure 3 is a schematic structural diagram of the cooling fan in Embodiment 1;

[0026] Figure 4 is a schematic structural diagram of Embodiment 2;

[0027] Figure 5 is a schematic connection diagram of the series connecting plate and the first connecting plate in Embodiment 2;

[0028] Figure 6 is a schematic structural diagram of the clamping rod in Embodiment 1.

[0029] In the figure, 1. box body; 2. resistor body assembly; 21. support member; 22. resistor plate; 23. resistor unit; 24. first connecting plate; 241. clamping hole; 25. series connecting plate; 26. first insulating sleeve; 27. grounding plate; 28. second insulating sleeve; 3. cooling fan; 31. mounting bracket; 4. testing device; 5. clamping rod; 51. mounting groove; 52. hooking rod; 521. transverse part; 522. longitudinal part; 523. driving rod; 53. threaded sleeve; 531. wedge-shaped surface; 54. elastic strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following further describes the present application in detail with reference to the attached Figure 1-6 drawings.

[0031] Embodiment 1:

[0032] Embodiment 1 discloses a miniaturized and portable dummy load. Refer to Figure 1 and Figure 2, including a box body 1, two groups of resistor body assemblies 2 and a testing device 4. The two groups of resistor body assemblies 2 are both arranged in the box body 1 and are arranged in parallel. The testing device 4 is fixedly connected to the inner wall of the box body 1. The resistor body assembly 2 includes a support member 21, a resistor body unit 23, and a resistor plate 22. There are two groups of resistor body units 23. Each group of resistor body units 23 includes several, and several resistor body units 23 are distributed in the vertical direction. There are four resistor plates 22. Every two resistor plates 22 correspond to a group of resistor body units 23. The two resistor plates 22 are located at both ends of the resistor body unit 23 and fixedly connect several resistor body units 23. The resistor plate 22 is fixedly connected to the support member 21, and the support member 21 is fixedly connected to the inner wall of the box body 1.

[0033] Referring to Figure 1 and Figure 2 , a first connecting plate 24 is fixedly connected to the upper part of the resistor plate 22. A series connecting plate 25 is arranged between the two first connecting plates 24 between the two groups of resistor body assemblies 2. The two ends of the series connecting plate 25 are connected to the two first connecting plates 24 by bolts. Different resistance values can be replaced by controlling the installation and disassembly of the series connecting plate 25.

[0034] Referring to Figure 1 and Figure 2 , the box body 1 is provided with a first through hole corresponding to the first connecting plate 24. The first connecting plate 24 passes through the first through hole to extend outside the box body 1. After the series connecting plate 25 is connected to the first connecting plate 24, it is located outside the box body 1. A grounding plate 27 is also fixedly connected to the resistor plate 22. The upper part of the box body 1 is provided with a second through hole for the grounding plate 27 to pass through. There is a gap between the side wall of the first through hole and the first connecting plate 24. A first insulating sleeve 26 is fixedly connected to the upper surface of the box body 1. The first insulating sleeve 26 corresponds to the position of the first through hole. The first connecting plate 24 passes through the first insulating sleeve 26. There is a gap between the side wall of the second through hole and the grounding plate 27. A second insulating sleeve 28 is fixedly connected to the upper surface of the box body 1. The second insulating sleeve 28 corresponds to the position of the second through hole. The grounding plate 27 passes through the second insulating sleeve 28.

[0035] Referring to Figure 1 and Figure 3 , a cooling fan 3 is arranged in the box body 1. An installation bracket 31 is fixed to the back of the cooling fan 3. The installation bracket 31 is fixed to the inner wall of the box body 1. A heat dissipation port is provided on one side of the box body 1 opposite to the cooling fan 3.

[0036] The implementation principle of Embodiment 1 of this application is as follows: A first connecting plate 24 is provided on the resistor body assembly 2, and the upper end of the first connecting plate 24 extends outside the box body 1. The two resistor body assemblies 2 are connected in series in the box body 1 through the series connecting plate 25, so as to switch different resistance values to improve the convenience of operation.

[0037] Example 2:

[0038] The difference between Example 2 and Example 1 is that with reference to Figure 4 and Figure 5 , clamping rods 5 are fixedly connected to both ends of the series connection connecting plate 25. Clamping holes 241 for clamping the clamping rods 5 are formed in the first connecting plate 24. The clamping rod 5 is provided with a hooking member for hooking the first connecting plate 24.

[0039] With reference to Figure 5 and Figure 6 , an installation groove 51 is formed through the middle of the clamping rod 5. The hooking member is located in the installation groove 51. The hooking member is a hooking rod 52. A plurality of hooking rods 52 are provided. In this embodiment, the number of hooking rods 52 is two. The two hooking rods 52 are arranged in a circumferential array around the axis of the clamping rod 5. The hooking rod 52 includes a transverse portion 521 and a longitudinal portion 522. The transverse portion 521 is located in the installation groove 51. The middle of the transverse portion 521 is hinged to the groove wall of the installation groove 51. One end of the longitudinal portion 522 is fixedly connected to the end of the transverse portion 521 far from the series connection connecting plate 25. The other end of the longitudinal portion 522 extends in a direction away from the axis of the clamping rod 5. The clamping rod 5 is provided with a driving member for rotating the transverse portion 521 to force the longitudinal portion 522 to protrude from the peripheral wall of the clamping rod 5.

[0040] With reference to Figure 5 and Figure 6 , the driving member is a threaded sleeve 53. The threaded sleeve 53 is threadedly connected to the clamping rod 5. A driving rod 523 is fixedly connected to the end of the transverse portion 521 far from the longitudinal portion 522. The driving rod 523 extends in a direction away from the axis of the clamping rod 5. A wedge-shaped surface 531 for forcing the driving rod 523 to move towards the axis of the clamping rod 5 is provided on the inner side surface of the threaded sleeve 53.

[0041] With reference to Figure 5 and Figure 6 , the transverse portion 521 is provided with an elastic member for forcing a plurality of longitudinal portions 522 to move towards each other. The elastic member is an elastic strip 54. Both ends of the elastic strip 54 are respectively fixedly connected to one ends of the two transverse portions 521 close to the longitudinal portion 522.

[0042] The implementation principle of Example 2 is: Rotate the threaded sleeve 53. The threaded sleeve 53 can move along the axis direction of the clamping rod 5, so as to force the driving rod 523 to move through the wedge-shaped surface 531, and then force the transverse portion 521 to rotate, so that the longitudinal portion 522 hooks the first connecting plate 24, improving the convenience of operation.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A miniaturized and portable dummy load, characterized in that: It includes a box body (1) and two groups of resistor components (2). The two groups of resistor components (2) are both arranged on the box body (1) and are arranged in parallel. A series connection connecting plate (25) is arranged between the two groups of resistor components (2). The two ends of the series connection connecting plate (25) are respectively detachably connected to the two groups of resistor components (2). The upper end of the resistor component (2) is provided with a first connecting plate (24), and the upper end of the first connecting plate (24) extends outside the box body (1). The series connection connecting plate (25) is respectively connected to the first connecting plates (24) on the two groups of resistor components (2).

2. The miniaturized and portable dummy load according to claim 1, wherein: The resistor component (2) includes a support (21), a resistor unit (23), and a resistor plate (22). There are two groups of resistor units (23). Each group of resistor units (23) includes several. The several resistor units (23) are distributed in the vertical direction. The resistor plate (22) is located at both ends of the resistor unit (23) and connects the several resistor units (23). The resistor plate (22) is fixed on the support (21).

3. A miniaturized and portable dummy load according to claim 1, characterized in that: A cooling fan (3) is arranged inside the box body (1). An installation bracket (31) is fixed to the back of the cooling fan (3), and the installation bracket (31) is fixed inside the box body (1).

4. A miniaturized and portable dummy load according to claim 2, characterized in that: Both ends of the series connection connecting plate (25) are provided with clamping rods (5). The first connecting plate (24) is provided with clamping holes (241) for the clamping rods (5) to be clamped. The clamping rod (5) is provided with a hooking member for hooking on the first connecting plate (24).

5. The miniaturized and portable dummy load according to claim 4, wherein: The hooking member is a hooking rod (52). There are several hooking rods (52). The several hooking rods (52) are arranged in a circumferential array around the axis of the clamping rod (5). The hooking rod (52) includes a transverse portion (521) and a longitudinal portion (522). The middle of the transverse portion (521) is hinged to the clamping rod (5). One end of the longitudinal portion (522) is fixedly connected to the transverse portion (521), and the other end of the longitudinal portion (522) extends in a direction away from the axis of the clamping rod (5). The clamping rod (5) is provided with a driving member for driving the transverse portion (521) to rotate.

6. The miniaturized and portable dummy load according to claim 5, wherein: The driving member is a threaded sleeve (53). The threaded sleeve (53) is threadedly connected to the clamping rod (5). One end of the transverse portion (521) away from the longitudinal portion (522) is provided with a driving rod (523). The driving rod (523) extends in a direction away from the axis of the clamping rod (5). The inner side surface of the threaded sleeve (53) is provided with a wedge surface (531) for forcing the driving rod (523) to move in a direction close to the axis of the clamping rod (5).

7. The miniaturized and portable dummy load according to claim 6, wherein: The transverse portion (521) is provided with an elastic member for forcing the several longitudinal portions (522) to move towards each other.

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