CN220626619U - Test power supply device and detection device - Google Patents

Abstract

The utility model discloses test power supply equipment and a detection device, and relates to the technical field of electrical performance test equipment, wherein the test power supply equipment comprises a shell and a partition board, and an air inlet and an air outlet are respectively arranged on two opposite sides of the shell; the baffle is located in the casing, and with the inside wall parallel arrangement of casing, the quantity of baffle is N, and N is greater than or equal to 1, N the baffle divide into first holding chamber and N+1 assembly passageway of formation in the casing, first holding chamber intercommunication air intake and N+1 assembly passageway, first holding chamber is used for holding first functional unit, the assembly passageway is used for holding the second functional unit. The technical scheme of the utility model aims to realize the heat dissipation effect of the whole machine in the test power supply equipment, reduce the heat dissipation power of the test power supply equipment and improve the practicability of the test power supply equipment.

Description

Test power supply device and detection device

Technical Field

The utility model relates to the technical field of electrical performance testing equipment, in particular to testing power supply equipment and a detection device.

Background

In the related art, a detection device can be generally used for detecting multiple electrical properties of electric equipment, for example, the detection device is used for performing performance test of a frequency converter or performance test of a direct current speed regulator on a new energy automobile, input electric energy of a power supply system can be regulated by utilizing test power supply equipment to form test current meeting test requirements of the electric equipment, and then the test current is output to the electric equipment to perform electrical property test, so that the electric equipment can be verified according to a test result, and the production yield of the electric equipment is ensured.

However, in the existing test power supply device, a plurality of functional units for adjusting electric energy are set in a most dispersed manner, and a plurality of heat dissipation devices are generally required to be arranged to dissipate heat of the plurality of functional units respectively, so that heat dissipation of the whole power supply device cannot be well realized, the overall heat dissipation power consumption of the test power supply device is larger, and the practicability of the test power supply device is reduced.

Disclosure of Invention

The utility model mainly aims to provide test power supply equipment and a detection device, and aims to achieve the effect of heat dissipation of the whole machine in the test power supply equipment, reduce the heat dissipation power of the test power supply equipment and improve the practicability of the test power supply equipment.

In order to achieve the above purpose, the test power supply device provided by the utility model comprises a shell and a partition board, wherein an air inlet and an air outlet are respectively arranged on two opposite sides of the shell; the baffle is located in the casing, and with the inside wall parallel arrangement of casing, the quantity of baffle is N, and N is greater than or equal to 1, N the baffle divide into first holding chamber and N+1 assembly passageway of formation in the casing, first holding chamber intercommunication air intake and N+1 assembly passageway, first holding chamber is used for holding first functional unit, the assembly passageway is used for holding the second functional unit.

Optionally, N spacers are disposed at equal intervals.

Optionally, the test power supply device further includes a heat dissipation fan, where the heat dissipation fan is disposed in the housing and is used to drive the gas in the housing to flow through the first accommodating cavity and the n+1 assembly channels in sequence.

Optionally, the heat dissipation fan is disposed between the first accommodating cavity and the air inlet. Or, the heat dissipation fan is arranged between the first accommodating cavity and the assembly channel.

Optionally, the partition board is further divided into a second accommodating cavity in the casing, the second accommodating cavity is communicated with the air outlet and the n+1 assembly channels, and the second accommodating cavity is used for accommodating the third functional unit.

Optionally, the heat dissipation fan is disposed between the second accommodating cavity and the assembly channel.

Optionally, the heat dissipation fan includes n+1 fan units, and one fan unit is disposed corresponding to one assembly channel.

Optionally, the test power supply device further includes a heat sink provided in the assembly channel and used for connecting the second functional unit.

Optionally, the shell comprises a shell body and a cover plate, the shell body is provided with an assembly groove, the shell body is provided with the air inlet and the air outlet, the partition board is connected to the bottom wall of the assembly groove and is enclosed with the inner wall of the assembly groove to form the first accommodating cavity and the assembly channel, and the first accommodating cavity and the assembly channel are exposed out of the notch of the assembly groove; the cover plate is detachably connected to the housing body and covers the assembly groove.

The utility model also provides a detection device, which comprises a power supply system and test power supply equipment, wherein the test power supply equipment is the test power supply equipment, and the power supply system is electrically connected with the test power supply equipment.

According to the technical scheme, the N partition plates are arranged in the shell, the N partition plates are utilized to divide and form the first accommodating cavity and the N+1 assembly channels in the inner cavity of the shell, the first accommodating cavity can be utilized to accommodate the first functional unit, the N+1 assembly channels are utilized to accommodate the second functional unit, separation assembly of components in the test power supply equipment is achieved, wiring and disassembly of the components in the test power supply equipment are facilitated, and mutual interference among the components is reduced. And because first holding chamber intercommunication air intake and N+1 assembly passageway to baffle and the inside wall parallel arrangement of casing can make the gas that gets into in the casing from the air intake flow through first holding chamber and each assembly passageway straightly, make gas can keep higher wind speed take away the heat that produces on first functional unit and the second functional unit fast, be favorable to realizing test power supply equipment's complete machine heat dissipation better, need not to set up a plurality of cooling systems respectively and independently dispel the heat to a plurality of components and parts in the test power supply equipment, reduce test power supply equipment's heat dissipation consumption, improved test power supply equipment's practicality and reliability.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a test power supply device according to an embodiment of the present utility model;

FIG. 2 is a top view of one embodiment of the test power supply apparatus of FIG. 1;

FIG. 3 is a schematic diagram of the flow of gas within the housing of FIG. 2;

FIG. 4 is a schematic diagram of another embodiment of a test power supply device according to the present utility model;

FIG. 5 is a top view of one embodiment of the test power supply apparatus of FIG. 4;

FIG. 6 is a schematic diagram of the flow of gas within the housing of FIG. 5;

FIG. 7 is a schematic diagram of another embodiment of a test power supply device according to the present utility model;

fig. 8 is a schematic structural diagram of another embodiment of the test power supply device of the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The test power supply equipment is equipment for providing energy sources or electronic loads for tested products, and different application software can enable the equipment to be a PV simulator, a battery simulator, a power grid simulator, an energy storage converter, a hydrogen energy rectifier, a DC-DC power supply and the like. The test power supply device mainly comprises an IGBT module, an IGBT driving module, an auxiliary power supply module, a control module and an acquisition module.

In the existing test power supply equipment, a plurality of functional units for adjusting electric energy are arranged in a most dispersed mode, a plurality of radiating devices are usually required to be arranged for radiating the plurality of functional units respectively, and heat dissipation of the whole power supply equipment cannot be well achieved, so that the overall heat dissipation power consumption of the test power supply equipment is large, and the practicability of the test power supply equipment is reduced. In view of the above problems, the present utility model proposes a test power supply apparatus 100.

Referring to fig. 1 to 8, in an embodiment of the present utility model, the test power supply apparatus 100 includes a housing 10 and a partition 30, and an air inlet 13 and an air outlet 15 are provided at opposite sides of the housing 10, respectively; the partition plates 30 are arranged in the shell 10 and are parallel to the inner side wall of the shell 10, the number of the partition plates 30 is N, N is greater than or equal to 1, the N partition plates 30 are divided into a first accommodating cavity 111 and an N+1 assembling channel 113 in the shell 10, the first accommodating cavity 111 is communicated with the air inlet and the N+1 assembling channel 113, the first accommodating cavity 111 is used for accommodating the first functional unit 51, and the assembling channel 113 is used for accommodating the second functional unit 53. Wherein the size of the first functional unit 51 is larger than the size of the second functional unit 53, and the first functional unit 51 can be placed in the first accommodating chamber 111 only.

It can be understood that the detection device can be applied to electrical property detection of electric equipment such as photovoltaics, new energy automobiles, power distribution terminals or electric energy meters, and the production yield of the electric equipment is guaranteed. The detection device can be connected to the input end of the test power supply equipment 100 through the power supply system, and is connected to the output end of the test power supply equipment 100, at this time, the electric energy input by the power supply system can be subjected to adjustment such as filtering, power correction, transformation frequency conversion and the like in the test power supply equipment 100, so that the test power supply equipment 100 can adjust and output test currents such as direct current or three-phase current of corresponding voltage, power and frequency according to test requirements of the electric equipment, and the electric equipment can perform performance test under corresponding electricity conditions, screening or test and the like before leaving a factory of the electric equipment are realized, and accurate detection operation of the detection device on the electric equipment is ensured.

In order to implement the regulation of the input electric energy by the detection device, a first functional unit 51 and a second functional unit 53 may be provided in the test power supply apparatus 100, where the first functional unit 51 may be a functional module integrated by an electrical element such as a PFC (Power Factor CorrectioN ) unit, so that the first functional unit 51 may perform the function of controlling the waveform of the input current, synchronizing it with the waveform of the input voltage, improving the power factor, and reducing the harmonic content. The second functional unit 53 may be a functional module integrated by electrical components such as a DAB CoNverter (Dual Active Bridge, dual-active bridge CoNverter) and a Buck CoNverter, so that the second functional unit 53 may perform a function of converting and adjusting a current and a voltage of a circuit, so that the test power supply device 100 is convenient to output a test current required by an electric device.

Next, the test power supply apparatus 100 may be further provided with a third functional unit 55 for rectifying output and internal and external communication of the test power supply apparatus 100, and the third functional unit 55 may be a functional module integrated by an AC/DC (AlterNatiNg CurreNt/Direct CurreNt) input output unit and an electrical element such as a communication unit, so that the third functional unit 55 may implement rectifying output of a test CurreNt and an internal and external communication function of the test power supply apparatus 100. Further, by inputting the input current of the power supply system into the test power supply device 100, the characteristics of the input current can be sequentially adjusted by using the first functional unit 51 and the second functional unit 53, so that the test power supply device 100 can stably output the test current required by the test of the electric equipment by using the third functional unit 55, and the normal operation of the test power supply device 100 is ensured.

In this application, the casing 10 of the test power supply apparatus 100 may be provided with an air inlet 13 and an air outlet 15, where the air inlet 13 and the air outlet 15 may be respectively disposed on two opposite side surfaces of the casing 10, so that the air communication between the casing 10 and the external environment is maintained by using the air inlet 13 and the air outlet 15, so that the low-temperature air in the external environment may enter the casing 10 through the air inlet 13 on one side of the casing 10 to flow to take away the temperature in the casing 10, and then be discharged from the air outlet 15 on the other side of the casing 10 to the external environment. Wherein, N baffles 30 (N may be an integer of 1, 2, 3, 4, 5, etc.) are disposed in the housing 10, and each baffle 30 is disposed parallel to the inner side wall of the housing 10, at this time, the baffles 30 may be a certain distance from the inner wall of the housing 10, where the air inlet 13 is disposed, in the inner cavity of the housing 10, so that under the separation effect of the N baffles 30, a first accommodating cavity may be formed between one side of the N baffles 30 opposite to the air outlet and the inner wall of the housing 10, where the air inlet is disposed, and an n+1 assembling channel 113 is formed by using a space between the baffles 30 and the inner side wall of the housing 10, and a space between two adjacent baffles 30, so that the first accommodating cavity 111 may be communicated with the air inlet 13 and the n+1 assembling channel 113, and gas blown into the housing 10 at the air inlet 13 may first accommodating cavity 111 and then be split into the n+1 assembling channel 113 by the baffle 30 under the effect of the partition wall at the junction of the first accommodating cavity 111 and the n+1 assembling channel 113, thereby ensuring smooth flow of the gas in the housing 10 to realize heat dissipation. Since the partition plate 30 is disposed parallel to the inner sidewall of the housing 10, the gas can be well flowed through the first accommodating cavity 111 and each assembly channel 113 after entering the housing 10, and then is discharged through the air outlet 15, as shown in fig. 3 and 6, the dashed lines with arrows in fig. 3 and 6 are the flowing direction of the gas in the housing 10. Through utilizing the setting of baffle 30 in casing 10 can make gaseous straight through first holding chamber 111 and each assembly passageway 113, can avoid gaseous in casing 10 to receive blockking and reduce the wind speed well, guarantee that gaseous can get into the heat in the casing 10 with faster velocity of flow, realize better radiating effect.

Wherein, the inner cavity of the shell 10 is divided to form a first accommodating cavity 111 and an n+1 assembling channel 113 under the action of the partition board 30, a plurality of independent separated assembling spaces can be formed in the shell 10, the first functional unit 51 for filtering, correcting the function factor and the like of the input current can be arranged in the first accommodating cavity, and the second functional unit 53 for carrying out current and voltage transformation adjustment on the input current is arranged in the n+1 assembling channel. Since the first accommodating cavity 111 is communicated with the n+1 assembling channel 113, the second functional unit 53 can be conveniently and electrically connected with the first functional unit 51 arranged in the first accommodating cavity 111 in the assembling channel 113 to realize transmission of input current, and ensure that the gas in the shell 10 can stably and straightly flow through the first functional unit 51 and the second functional unit 53 to dissipate heat, so that the heat dissipation effect of the whole power supply device 100 is realized. In the overall layout of the test power supply apparatus 100, the test power supply apparatus 100 may be provided with a plurality of second functional units 53 having identical functions to cooperatively regulate the input current, and at this time, the plurality of second functional units 53 may be separately provided in the independent assembly channels 113, respectively; alternatively, the test power supply apparatus 100 may subdivide the components of the second functional unit 53 into a plurality of small modules, respectively set in the n+1 mounting channels 113, and implement power conditioning of the second functional unit 53 by connecting the plurality of small modules with cables. Furthermore, by partitioning the functional modules of the test power supply device 100 in the first accommodating cavity 111 and the n+1 assembly channels 113, the functional modules for realizing the adjustment of the input current of the test power supply device 100 can be well separated and assembled, interference between the functional modules is avoided, the internal wiring of the test power supply device 100 is facilitated, meanwhile, the heat dissipation of the whole machine of the test power supply device 100 can be realized by using the gas in the housing 10 to flow through the first accommodating cavity 111 and each assembly channel 113 in a straight manner, the overall heat dissipation power of the test power supply device 100 can be better reduced, and the heat dissipation requirement of the test power supply device 100 can be met.

In the n+1 fitting channel 113, the n+1 fitting channel 113 may be entirely configured to accommodate the second functional unit 53; alternatively, only a part of the assembly channels 113 may be used to accommodate and assemble the second functional unit 53, while other assembly channels 113 are idle or used to accommodate and assemble other components, for example, a part of the assembly channels 113 may be used to assemble the third functional unit 55, so that a part of expansion space may be reserved in the housing 10 of the test power supply device 100, which is convenient for a user to add other components in the test power supply device 100 for function expansion, and further improves the practicality of the test power supply device 100.

According to the technical scheme, N partition plates 30 are arranged in the shell 10, the N partition plates 30 are utilized to divide and form a first accommodating cavity 111 and an N+1 assembling channel 113 in the inner cavity of the shell 10, the first accommodating cavity 111 can be utilized to accommodate the first functional unit 51, the N+1 assembling channel 113 is utilized to accommodate the second functional unit 53, separation assembly of components in the test power supply equipment 100 is achieved, wiring and disassembly of the components in the test power supply equipment 100 are facilitated, and mutual interference among the components is reduced. And because the first accommodating cavity 111 communicates the air inlet 13 and the n+1 assembly channels 113, and the partition plate 30 is parallel to the inner side wall of the casing 10, the air entering the casing 10 from the air inlet 13 can flow through the first accommodating cavity 111 and each assembly channel 113 in a flat way, so that the air can keep a high air speed to quickly take away the heat generated on the first functional unit 51 and the second functional unit 53, thereby being beneficial to better realizing the heat dissipation of the whole machine of the test power supply equipment 100, and not needing to be provided with a plurality of heat dissipation systems for independently dissipating the heat of a plurality of components in the test power supply equipment 100, facilitating the overall layout and maintenance of the test power supply equipment 100, reducing the heat dissipation power consumption of the test power supply equipment 100 and improving the practicability and reliability of the test power supply equipment 100.

Referring to fig. 2 and 5, in one embodiment of the present utility model, N spacers 30 are disposed at equal intervals.

In this embodiment, when the plurality of separators 30 are provided in the housing 10, the intervals between every two separators 30 may be the same, so that the plurality of separators 30 may be disposed at equal intervals, at this time, the intervals between the separators 30 near the inner side wall of the housing 10 and the inner side wall of the housing 10 may be kept identical to the intervals between any two separators 30, so that n+1 mounting channels 113 formed by N separators 30 in the housing 10 may have identical channel widths, and further, each mounting channel 113 may have the same space for accommodating and mounting components of the test power supply apparatus 100, and it is ensured that the second functional units 53 accommodated in the plurality of mounting channels 113 may keep uniform materials. And the amount of gas which is shunted into each assembly channel 113 is the same, so that the heat dissipation of enough gas which can circulate in each assembly channel 113 is better ensured, the temperature uniformity in the N+1 assembly channels 113 is ensured, and the heat dissipation effect of the whole machine of the test power supply device 100 is further improved.

Referring to fig. 1, 3 and 5, in one embodiment of the present utility model, the test power supply apparatus 100 further includes a heat dissipation fan 70, the heat dissipation fan 70 being disposed in the housing 10 and configured to drive the gas in the housing 10 to sequentially flow through the first receiving chamber 111 and the n+1 mounting channels 113.

In order to ensure the heat dissipation efficiency of the test power supply device 100, a fan may be disposed at the periphery of the test power supply device 100 towards the air inlet 13 or the air outlet 15 to disturb the air around the test power supply device 100, so that the air may be driven by the fan to enter the housing 10 through the air inlet 13 for heat dissipation. In this embodiment, the heat dissipation fan 70 may be directly disposed in the inner cavity of the casing 10, and the heat dissipation fan 70 may be used to directly disturb the air in the casing 10, at this time, the heat dissipation fan 70 may drive the air in the casing 10 to flow from the air inlet 13 toward the air outlet 15, so that the air around the casing 10 may be pumped into the casing 10 from the air inlet 13 by the heat dissipation fan 70, and under the driving action of the heat dissipation fan 70, the air may stably flow through the first accommodating cavity 111 and flow into each assembly channel 113, and then be released from the air outlet 15 into the environment where the test power supply device 100 is located, so as to ensure that the air flows in the casing 10 to stably take away the heat generated by the first functional unit 51 and the second functional unit 53, ensure the overall heat dissipation effect of the test power supply device 100, and further improve the stability and reliability of the test power supply device 100.

Referring to fig. 1, 3 and 5, in one embodiment of the present utility model, the heat dissipation fan 70 includes at least n+1 fan units, one fan unit being disposed corresponding to one fitting channel 113.

In this embodiment, the heat dissipation fan 70 may be provided with n+1 fan units corresponding to the n+1 assembly channels 113, and the flow rate of the heat dissipation fan 70 driving the air flowing in the housing 10 can be better improved by using the cooperation of the fan units, at this time, the area of turbulent flow of the heat dissipation fan 70 can be better increased by arranging the fan units side by side along the direction perpendicular to the air flowing direction in the housing 10, so as to further improve the overall heat dissipation effect of the test power supply device 100. Wherein, through setting up a fan unit corresponding to an assembly passageway 113, can improve the gas velocity of flow that flows into each assembly passageway 113 better, realize the even heat dissipation in each assembly passageway 113, be favorable to improving the sameness between a plurality of assembly passageways 113 better, further improve the radiating effect of test power supply device 100.

Referring to fig. 1, 3 and 5, in one embodiment of the present utility model, the test power supply apparatus 100 further includes a heat sink 90, and the heat sink 90 is disposed in the assembly channel 113 and is used to connect the second functional unit 53.

In this embodiment, the test power supply device 100 may set a radiator 90 in each assembly channel 113, where the radiator 90 may be a heat dissipation fin or a heat dissipation conduit, and the radiator 90 is connected with the second functional unit 53 in the assembly channel 113, and the radiator 90 may be used to conduct heat generated by the second functional unit 53 set in the assembly channel 113, so that the heat generated by the second functional unit 53 may be better transferred to the radiator 90 with a larger heat dissipation area, so that the heat on the radiator 90 is more quickly taken away when the gas flows through the assembly channel 113, thereby achieving a better heat dissipation effect and further improving the heat dissipation efficiency of the test power supply device 100. Wherein, the test power supply apparatus 100 may set a corresponding number of heat sinks 90 for the heat generating components of the second functional unit 53 set in the assembly channel 113, so that the plurality of heat sinks 90 may respectively conduct heat conduction and heat dissipation for the plurality of heat generating components in the assembly channel 113, thereby reducing mutual thermal interference of the components set in the assembly channel 113, and further improving the heat dissipation effect of the test power supply apparatus 100.

Referring to fig. 1 to 4, in an embodiment of the present utility model, the heat dissipation fan 70 is disposed between the first accommodating cavity 111 and the air inlet 13. Alternatively, the heat radiation fan 70 is provided between the first receiving chamber 111 and the fitting passage 113.

In this embodiment, as shown in fig. 1 and 2, the heat dissipation fan 70 may be disposed between the first accommodating cavity 111 and the assembly channel 113, so that the air around the housing 10 may be pumped into the first accommodating cavity 111 by the air inlet 13 to act on the first functional unit 51 under the driving action of the heat dissipation fan 70, and the air takes away the heat on the first functional unit 53 to flow towards the air outlet 15 and encounter the heat dissipation fan 70, so that the fan 70 may further converge the air and then disperse the air into the n+1 assembly channel 113 to take away the heat generated by the second functional unit 53, so that the flow velocity of the air in the housing 10 is more stable, and a better heat dissipation effect is achieved. Or, as shown in fig. 3 and fig. 4, the heat dissipation fan 70 may be disposed between the first accommodating cavity 111 and the air inlet 13, so that the heat dissipation fan 70 may be disposed closer to the air inlet 13, at this time, the air in the environment where the housing 10 is located may be more quickly driven to be pumped into the air inlet 13 under the action of the heat dissipation fan 70, so that the flow rate of the air entering the air inlet 13 is faster, and the heat dissipation air is convenient to more quickly carry away the heat on the first functional unit 51 and the second functional unit 53 to the external environment through the air outlet 15, so that the heat dissipation efficiency in the test power supply device 100 is faster, and a better heat dissipation effect is achieved.

Referring to fig. 1, 3 and 5, in one embodiment of the present utility model, the partition board 30 is further divided into a second accommodating cavity 115 in the housing 10, the second accommodating cavity 115 communicates with the air outlet 15 and the n+1 assembly channel 113, and the second accommodating cavity 115 is used for accommodating the third functional unit 55.

In this embodiment, the partition board 30 may further have a certain distance between the side of the partition board 30 facing away from the air inlet 13 and the inner wall of the casing 10 where the air outlet 15 is provided, so that the partition board 30 may further form a second accommodating cavity 115 in the casing 10, where the second accommodating cavity 115 is separated from the first accommodating cavity 111 by n+1 mounting channels 113, and by connecting the second accommodating cavity 115 with the air outlet 15 and the n+1 mounting channels 113, the air flowing in the casing 10 is converged into the first accommodating cavity 111 through the air inlet 13, and then is split into the n+1 mounting channels 113 to flow out of the air outlet 15, so that the air may better flow through the first accommodating cavity 111, the mounting channels 113 and the second accommodating cavity 115 in sequence to realize the heat dissipation of the whole power supply testing device 100. By assembling the third functional unit 55, which realizes the regulated rectifying and outputting function of the test current, into the second accommodating cavity 115, the wiring and assembling of the first functional unit 51, the second functional unit 53 and the third functional unit 55 in the test power supply device 100 can be further facilitated, and meanwhile, the heat on the first functional unit 51, the second functional unit 53 and the third functional unit 55 is taken away by the gas in the test power supply device 100 in sequence to realize the heat dissipation of the whole machine of the test power supply device 100. Furthermore, under the separation effect of the partition board 30, the separation setting of each functional unit in the test power supply device 100 is better realized, the overall layout, disassembly and assembly maintenance of the test power supply device 100 are facilitated, and meanwhile, under the communication effect of the separation space of the partition board 30, gas can flow in the shell 10 better to uniformly take away heat generated by a plurality of functional units, a plurality of heat dissipation systems are not required to be respectively arranged for the plurality of functional units for heat dissipation, so that the heat dissipation power of the test power supply device 100 is further reduced, and the practicability and reliability of the test power supply device 100 are further improved.

Referring to fig. 5, in one embodiment of the present utility model, the heat dissipation fan 70 is disposed between the second receiving cavity 115 and the assembly channel 113.

In this embodiment, the heat dissipation fan 70 may be disposed between the second accommodating cavity 115 and the assembly channel 113, at this time, after the air is pumped into the first accommodating cavity 111 through the air inlet 13 under the turbulence effect of the heat dissipation fan 70, the air may be shunted from the first accommodating cavity 111 into the n+1 assembly channel 113, so that when the air approaches the heat dissipation fan 70 after entering each assembly channel 113, the air may flow through the second accommodating cavity 115 to be discharged from the air outlet 15 under the action of the heat dissipation fan 70, so that the air may flow into the first accommodating cavity 111 and the assembly channel 113 more fully and slowly, and then be driven by the heat dissipation fan 70 to increase the flow rate and flow into the second accommodating cavity 115, so that the air may perform heat exchange more fully in the first accommodating cavity 111 and the assembly channel 113 to take away the heat on the first functional unit 51 and the second functional unit 53, and simultaneously, the heat generated by the third functional unit 55 may be quickly taken away, so that the first functional unit 51 and the second functional unit 53 may obtain more sufficient air heat dissipation, and further improve the heat dissipation effect of the whole power supply 100.

The heat dissipation fan 70 may be only disposed between the second accommodating cavity 115 and the assembly channel 113, so that the gas is ensured to flow into the first accommodating cavity 111 and the assembly channel 113 smoothly to take away the heat of the first functional unit 51 and the second functional unit 53, and then the flow rate of the gas is increased by the heat dissipation fan 70, and the gas flows into the second accommodating cavity 115 from the assembly channel 113 to quickly take away the heat generated by the third functional unit 55; or the heat dissipation fans 70 may be disposed between the second accommodating cavity 115 and the assembly channel 113 and between the first accommodating cavity 111 and the assembly channel 113, so that the heat dissipation fans 70 can drive the air entering the first accommodating cavity 111 through the air inlet 13 to quickly enter the assembly channel 113, and the heat dissipation air in the assembly channel 113 can quickly flow into the second accommodating cavity 115, so that the air in the test power supply device 100 can keep higher flow and flow rate, and a better heat dissipation effect is achieved.

Referring to fig. 8, in one embodiment of the present utility model, a housing 10 includes a housing body 10a and a cover plate 10b, the housing body 10a is provided with an assembly slot 11, the housing body 10a is provided with an air inlet 13 and an air outlet 15, a partition plate 30 is connected to a slot bottom wall of the assembly slot 11 and encloses with a slot inner wall of the assembly slot 11 to form a first accommodating cavity 111 and an assembly channel 113, and the first accommodating cavity 111 and the assembly channel 113 are exposed to a slot opening of the assembly slot 11; the cover plate 10b is detachably attached to the case body 10a, and covers the fitting groove 11.

In the present embodiment, the case body 10a may be recessed at one side to form the fitting groove 11; or the shell body 10a may be formed by splicing and combining a plurality of plates, so that one side of the shell body 10a is not encapsulated to form the assembly groove 11. The air inlet 13 and the air outlet 15 may be disposed on two inner walls of the assembly groove 11 relatively, so that the heat dissipation gas may flow in a straight line to penetrate through the entire assembly groove 11 for heat dissipation. At this time, the partition plates 30 may be disposed parallel to the inner sidewall of the connection assembly slot 11, and a certain distance is kept between one side of the partition plates 30 and the inner wall of the assembly slot 11 having the air inlet 13, so that the N partition plates 30 are connected to the bottom wall of the assembly slot 11 to form a first accommodating cavity 111 and n+1 assembly channels 113 in the assembly slot 11. In addition, a certain distance can be kept between the other side of the partition board 30 and the inner wall of the assembly groove 11 provided with the air outlet 15, so that the partition board 30 can be located in the central area of the assembly groove 11, and the partition board 30 can also form a second accommodating cavity 115 in the assembly groove 11 for accommodating the third functional unit 55.

Because the partition plate 30 is connected to the bottom wall of the assembly groove 11, and forms the first accommodating cavity 111, the n+1 assembly channel 113 and the second accommodating cavity 115 with the inner wall of the assembly groove 11 and the interval between the adjacent partition plates 30, the shielding of the partition plates 30 at the notch of the assembly groove 11 can be reduced to enable the first accommodating cavity 111, the assembly channel 113 and the second accommodating cavity 115 to be exposed at the notch of the assembly groove 11, so that a user can directly assemble, disassemble and maintain components in the test power supply device 100 through the notch of the assembly groove 11, the arrangement layout of the components such as the first functional unit 51, the second functional unit 53 and the third functional unit 55 in the shell 10 is facilitated, the fault positions on the first functional unit 51, the second functional unit 53 and the third functional unit 55 can be observed more intuitively through the notch of the assembly groove 11, the local maintenance and replacement of the test power supply device 100 are facilitated, and the disassembly and assembly convenience of the test power supply device 100 is further improved.

By arranging the cover plate 10b on the shell body 10a, the cover plate 10b can be connected with the shell body 10a through a guide rail to realize sliding opening and closing; or may be connected to the housing body 10a by a hinge; or the cover plate 10b can be connected and fixed on the shell body 10a by bolts, so that the notch of the cover plate 10b covering the assembly groove 11 in transportation or daily use can be used for protecting the first functional unit 51, the second functional unit 53 and the third functional unit 55 arranged in the test power supply device 100, and the normal operation of the test power supply device 100 is ensured. And when the test power supply device 100 needs to be overhauled and maintained, the notch of the assembly groove 11 can be directly exposed only by disassembling the cover plate 10b, so that a user can directly maintain the first functional unit 51, the second functional unit 53 and the third functional unit 55 through the notch of the assembly groove 11, the assembly and maintenance of the test power supply device 100 are more convenient, and the practicability and reliability of the test power supply device 100 are further improved.

The utility model also provides a detection device, which comprises a power supply system and a test power supply device 100, wherein the specific structure of the test power supply device 100 refers to the embodiment, and as the detection device adopts all the technical schemes of all the embodiments, at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims (10)

1. A test power supply apparatus, characterized in that the test power supply apparatus comprises:

the shell is provided with an air inlet and an air outlet at two opposite sides respectively;

the partition plates are arranged in the shell and are arranged in parallel with the inner side wall of the shell, the number of the partition plates is N, N is greater than or equal to 1, N partition plates are divided into a first accommodating cavity and N+1 assembling channels in the shell, the first accommodating cavity is communicated with the air inlet and the N+1 assembling channels, the first accommodating cavity is used for accommodating a first functional unit of the test power supply equipment, and the assembling channels are used for accommodating a second functional unit of the test power supply equipment;

the heat dissipation fan is used for driving heat dissipation gas to flow out from the air outlet after passing through the air inlet, the first accommodating cavity and the N+1 assembly channels.

2. The test power supply apparatus of claim 1, wherein N of said separators are disposed at equal intervals.

3. The test power supply apparatus of claim 1, wherein the heat dissipation fan is disposed in the housing and is configured to drive the gas in the housing to flow through the first receiving chamber and the n+1 mounting channels in sequence.

4. The test power supply device of claim 3, wherein the heat dissipation fan is disposed between the first receiving cavity and the air inlet;

or, the heat dissipation fan is arranged between the first accommodating cavity and the assembly channel.

5. A test power supply device according to claim 3, wherein said partition plate is further divided into a second accommodation chamber in said housing, said second accommodation chamber communicating said air outlet and n+1 of said fitting passages, said second accommodation chamber accommodating a third functional unit.

6. The test power supply apparatus of claim 5, wherein the heat dissipation fan is disposed between the second receiving cavity and the mounting channel.

7. A test power supply apparatus as claimed in claim 3, wherein said heat dissipation blower comprises n+1 blower units, one of said blower units being disposed in correspondence with one of said mounting channels.

8. The test power supply apparatus according to any one of claims 1 to 7, further comprising a heat sink provided in the fitting passage and connected to the second functional unit.

9. The test power supply apparatus according to any one of claims 1 to 7, wherein the housing includes:

the shell body is provided with an assembly groove, the shell body is provided with the air inlet and the air outlet, the partition plate is connected to the bottom wall of the assembly groove and is enclosed with the inner wall of the assembly groove to form the first accommodating cavity and the assembly channel, and the first accommodating cavity and the assembly channel are exposed to the notch of the assembly groove;

and the cover plate is detachably connected to the shell body and covers the assembly groove.

10. A detection device, characterized in that the detection device comprises a power supply system and a test power supply device, the test power supply device is the test power supply device according to any one of claims 1 to 9, the power supply system is electrically connected with the test power supply device, and the detection device is used for detecting a tested device.