CN219735681U - Cold water machine for new energy electric drive assembly offline test bench - Google Patents

Abstract

The utility model discloses a new energy electric drive assembly cooling water machine for a test bench, which belongs to the technical field of new energy detection supporting equipment, and comprises a condenser, a water tank, a water supply end, a water return end and a control system, wherein the water supply end and the water return end are connected with a tested piece, the control system is used for centralized control and reading and writing of related data, the water return end is communicated with a first water tank provided with a liquid level sensor, water in the first water tank is pumped into a heat exchanger through a first water pump and then flows back, a water supplementing tank provided with a liquid level switch is further arranged above the first water tank, and the first water tank is connected with the water supply end through a second water pump; the cooling water treatment device further comprises a second water tank, one side of the second water tank is connected with the heat exchanger, the other side of the second water tank is connected with the compressor and the condenser so as to realize the effect of cooling water, and the second water tank is connected with the rack motor by a third water pump near the bottom end. The water chiller provided by the utility model has good automatic control and integrates multiple functions, and can provide cooling water for the test bench and the tested products.

Description

Cold water machine for new energy electric drive assembly offline test bench

Technical Field

The utility model relates to the technical field of new energy automobile test equipment, in particular to a water chiller for a new energy electric drive assembly offline test bench.

Background

The electric drive system is an indispensable core part of a new energy automobile, the electric drive three-electric system comprises three major assembly parts, one of which is of critical importance, a series of detailed detection needs to be carried out in the production process of the new energy automobile, and usually, the detection is carried out on a special test bench, and cooling water needs to be provided for a test bench motor and corresponding tested products so as to ensure that the detection is carried out smoothly, so that special cold water equipment needs to be designed for cooling the test bench motor and the corresponding tested products efficiently and reliably.

Disclosure of Invention

The utility model aims to solve the above-mentioned needs in the prior art, and particularly provides a cold water machine for a new energy electric drive assembly offline test bench, so as to provide a stable and reliable integrated cooling system for the test bench of the new energy electric drive assembly.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a new energy electric drive assembly cold water machine for a test bench, which comprises a condenser, a water tank, a water supply end and a water return end, wherein the water supply end and the water return end are connected with a tested piece;

the cooling water treatment device further comprises a second water tank, one side of the second water tank is connected with the heat exchanger, the other side of the second water tank is connected with the compressor and the condenser so as to realize the effect of cooling water, and the second water tank is connected with the rack motor by a third water pump near the bottom end.

As a specific implementation structure, the device also comprises an optional water-cooling condenser, wherein the inlet and outlet ends of the optional water-cooling condenser are respectively used for connecting an external industrial cooling water inlet and an industrial cooling water return port, and a water flow switch is arranged on a pipeline connected with the industrial cooling water return port.

The pipeline where the water supply end is located is further provided with a pressure sensor, a first temperature sensor, a first valve, a first water pressure meter and a flowmeter in sequence, and the flowmeter is located on one side of an outlet of the second water pump.

Further, a branch pipeline is also connected to the pipeline where the water supply end is located, and a second valve, a check valve and an air source processor are arranged on the branch pipeline.

Further, a second temperature sensor, a third valve and a filter are sequentially installed on the pipeline where the water return end is located, and the outlet end of the filter is connected with the first water tank.

Preferably, a second water pressure gauge is further arranged between the heat exchanger and the first water pump, and water in the heat exchanger flows back to the first water tank through a heater.

Preferably, a stainless steel coil pipe connected with the condenser is positioned at the lower part in the second water tank, and a drying filter is connected with the outlet end of the condenser.

Further, a low-pressure meter, a double-pressure switch, a high-pressure meter and a single-pressure switch are sequentially connected between the inlet end and the outlet end of the compressor.

Preferably, the water tank also comprises a cuboid cabinet body serving as a shell, all the water tanks, the condenser, the heat exchanger and connecting pipelines are arranged in the cabinet body,

all water pumps are all installed at the internal bottom of cabinet, water supply end and return water end are located one side of the external surface of cabinet, and the internal top of cabinet of this one side is installed the moisturizing case, first water tank is by the below installation of the internal opposite side of cabinet, the condenser is located the internal top of cabinet and lean on the moisturizing case sets up, the condenser includes fin condenser and water-cooling condenser, the fan of fin condenser is installed in a round hole at the internal top of cabinet and just to heat transfer copper pipe.

More specifically, the water return end is inserted into the cabinet body through a water return pipe; the water tank partition board is arranged at the inner top of the second water tank, the water tank partition board is L-shaped, a buffer bin is formed in the second water tank, the outlet end of the water return pipe is positioned in the buffer bin, and the upper part of the buffer bin is connected to a standby interface of the side face of the cabinet body through a circulating pipeline.

Compared with the prior art, the utility model has the following beneficial effects: the new energy electric drive assembly is integrated with multiple functions by the cold water machine for the offline test bench, can conveniently provide cooling water for a tested piece, adopts a double-cooling mode, can be flexibly used in winter and summer, can perform airtight test and the like on a pipeline system of the tested piece, can purge the cooling water in a product after the test is finished, recover the cooling water, reduce waste, and is provided with a series of measurement and control elements to timely and accurately master the corresponding water pressure, temperature and flow of the product to be tested, for example, in practice, the existing automatic control principle is utilized, the inlet and outlet water temperature, the pressure and the inlet water flow of the product to be tested can be remotely read and written through the communication of an upper computer, and the corresponding monitoring is performed, so that the cooling flow temperature during the test can be ensured to meet the test requirement.

Drawings

In order to more clearly illustrate the embodiments of the 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, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a block diagram of one embodiment of the present utility model;

FIG. 3 is an internal representation of one specific construction of the present utility model;

fig. 4 is an enlarged view of a portion of one embodiment of the present utility model.

The reference numerals are explained as follows: the device comprises a tested piece 1, a first water tank 2, a second water pump 3, a liquid level sensor 4, a water supplementing tank 5, a liquid level switch 6, a first water pump 7, a heat exchanger 8, a second water tank 9, a third water pump 10, a bench motor 11, a compressor 12, a fin condenser 13, a fan 14, a dry filter 15, a stainless steel coil 16, an optional water cooling condenser 17, a water flow switch 18, an industrial cooling water return port 19, an industrial cooling water inlet 20, a second temperature sensor 21, a pressure sensor 22, a first temperature sensor 23, a check valve 24, an air source processor 25, a cabinet 26, a low pressure gauge 27, a double pressure switch 28, a high pressure gauge 29, a single pressure switch 30, a first water pressure gauge 31, a flow meter 32, a filter 33, a second water pressure gauge 34, a heater 35, a thermal expansion valve 36, a water supply end 37, a return end 38, a standby interface 39, a water tank partition 40, a water return pipe 41, a circulating pipeline 42 and a water supplementing pump 43.

Detailed Description

In order to make the technical means, creation characteristics, achievement purposes and functions of the present utility model more clear and easy to understand, the technical scheme of the present utility model will be described in detail below. It will be appreciated by those skilled in the art that the following examples illustrate only some, but not all, of the specific embodiments of the utility model and that the scope of the utility model is not limited thereto.

Referring to fig. 1, this embodiment discloses a new energy electric drive assembly cooling water machine for a test bench, which has a specific structure similar to that of some existing devices, and includes a condenser and a water tank, and for testing a tested piece 1, corresponding pipelines are provided for connecting a water supply end 37 and a water return end 38 of the tested piece 1. Specifically, the return water end 38 for the cooling water flowing back by the test piece 1 is communicated with a first water tank 2 provided with a liquid level sensor 4, a second temperature sensor 21, a third valve and a filter 33 are sequentially installed on a pipeline where the return water end 38 is located, the filter 33 can be a water tower filter 33, a stainless steel filter 33 and the like, the outlet end of the filter 33 is connected with the first water tank 2, and filtered water flows back into the first water tank 2 for storage. Meanwhile, in this embodiment, the water in the first water tank 2 is pumped into the heat exchanger 8 by the first water pump 7 and then flows back to perform corresponding heat exchange, for example, after cooling, the water flows back into the first water tank 2, and a water supplementing tank 5 with a liquid level switch 6 is further arranged above the first water tank 2 and connected with the first water tank 2, and the water supplementing tank 5 supplements the water by a water supplementing pump 43, so that when the water in the first water tank 2 is insufficient, the water is timely supplemented; more specifically, when the cooling water in the water chiller is consumed to the early warning liquid level, an early warning signal is given, so that the lack of the cooling liquid can be known in time by both the local and the remote parts, the on-site operator can connect the water suction port of the water supplementing pump 43 with the external cooling liquid barrel to be supplemented through the corresponding pipeline, the operation of one-key water supplementing on the touch screen can be supported, and the high liquid level automatic stop can be realized. In addition, in this embodiment, the first water tank 2 is connected to the water supply end 37 through the second water pump 3, and when in actual installation and use, the pressure sensor 22, the first temperature sensor 23, the first valve, the first water pressure meter 31 and the flow meter 32 are further installed on the pipeline where the water supply end 37 is located in sequence, and the flow meter 32 is located at the outlet side of the second water pump 3, so as to accurately grasp the corresponding parameter value on the water supply pipe, and perform adjustment control on the flow and the temperature during the test in time. In order to reduce the influence of bubbles in the cooling water fed into the test piece 1, the present embodiment is further specifically provided with a branch pipeline connected to the pipeline where the water supply end 37 is located, and the branch pipeline is provided with the second valve, the check valve 24 and the air source processor 25, so as to obtain a clean and stable compressed air source, which is convenient for output control, and the air source processor 25 can be directly purchased in the market, and the specific structural principle thereof is not described in detail, so that the person skilled in the art can adapt to the application and the matched installation.

Meanwhile, the cold water machine for the new energy electric drive assembly offline test bench of the embodiment further comprises a second water tank 9, when in installation, one side of the second water tank 9 can be connected with the heat exchanger 8, and the other side of the second water tank is connected with the compressor 12 and the condenser for corresponding heat exchange, so that the effect of cooling water can be well realized. For example, if the hot water returned by the test piece 1 flows through the heat exchanger 8 while the cold water in the second water tank 9 also enters the heat exchanger 8 in the first water tank 2, the heat from the hot water in the first water tank 2 can be absorbed and changed into hot water, the water in the first water tank 2 is cooled, then the hot water in the second water tank 9 can be cooled into cold water by the condenser, so as to realize the cooling effect, in practice, the stainless steel coil 16 connected with the condenser is located in the second water tank 9, for example, located at the lower part inside the second water tank 9, so as to cool the water in the second water tank 9, and of course, a dry filter 3315 can be connected at the outlet end of the condenser, so as to optimize the water supply effect. Between the inlet and outlet ends of the compressor 12, a low-pressure gauge 27, a double-pressure switch 28, a high-pressure gauge 29 and a single-pressure switch 30 are sequentially connected in an external mode to detect corresponding parameter values and monitor system conditions in real time.

Further, in the latter embodiment, the second water tank 9 is connected to a cooling structure such as a gantry motor 11 by a third water pump 10 at the bottom end, so that it is possible to selectively directly supply cooling water to cool it.

In order to improve the cooling effect, the embodiment further comprises an optional water-cooling condenser 17, wherein the inlet and outlet ends of the optional water-cooling condenser 17 are respectively used for connecting an external industrial cooling water inlet 20 and an industrial cooling water return port 19, and a water flow switch 18 is arranged on a pipeline connected with the industrial cooling water return port 19 so as to monitor the water flow.

In the above implementation structure, a second water pressure gauge 34 is further arranged between the heat exchanger 8 and the first water tank 2, namely between the heat exchanger 8 and the first water pump 7, water pressure is detected, water in the heat exchanger 8 flows back to the first water tank 2 through a heater 35, and the water can be heated appropriately to obtain hot water.

In the production, as shown in fig. 2 to 3, a rectangular parallelepiped tank 26 is first included as a housing, and all the water tanks, the condenser, the heat exchanger 8, and the connecting pipes therebetween, etc. are installed in the tank 26 for integration. When in installation, all water pumps are installed at the inner bottom of the cabinet body 26, the water supply end 37 and the water return end 38 are positioned at one side of the outer surface of the cabinet body 26, and can be arranged close to each other side by side, the water supplementing tank 5 is also installed at the inner top of the cabinet body 26 at the one side, and the water supplementing tank can be fixedly installed by adopting angle steel and the like. For the first water tank 2, the condenser can be installed by the lower part of the other side in the cabinet 26, the condenser is positioned at the top in the cabinet 26 and is arranged by the water supplementing tank 5, and the condenser comprises a fin condenser 13 and a water cooling condenser, so that air cooling/water cooling can be configured according to the field requirements of customers, or the air cooling/water cooling can be simultaneously configured, and the use in different seasons can be satisfied. In this embodiment, the fin condenser 13 is used as an air cooling mode, specifically, the heat exchange copper tubes are arranged in an inverted isosceles trapezoid array, and the fan 14 of the fin condenser 13 is installed in a round hole at the top of the cabinet body 26 and faces the heat exchange copper tubes so as to take away heat generated by the condenser. More specifically, as shown in fig. 4, the aforementioned water return end 38 is inserted into the cabinet 26 through the water return pipe 41, and at the same time, a water tank partition 40 is installed at the inner top of the second water tank 9, the water tank partition 40 is L-shaped to form a rectangular buffer compartment in the second water tank 9, the outlet end of the water return pipe 41 is located in the buffer compartment, so that the water returned by the test piece 1 enters the buffer compartment, and the upper part of the buffer compartment is connected to the spare interface 39 on the side of the cabinet 26 through a circulation pipe 42, so that circulation of cooling water can be performed if necessary. As a specific implementation structure, the outside of the water chiller is also provided with an external component which is close to a product and can truly measure the inlet and outlet water pressure, temperature and flow of the product, and the external component can be formed by combining corresponding existing measuring elements, so that the water chiller can be adaptively designed and manufactured by a person skilled in the art.

The control system is adaptively designed for the cold water machine in the embodiment, the local control is supported by the cold water machine, the remote communication control (Ethernet communication) is realized, and the cold water machine is enabled to intensively control and read and write related data in an EOL test bench through communication, so that the automatic test is met.

When the new energy electric drive assembly is used for online testing of the new energy electric drive assembly products by the cold water machine, cooling water can be provided for the corresponding test bench and product components, multiple functions are integrated, and cooling water can be provided for test products such as the new energy electric drive assembly, hybrid HEVs and the like; the inside of the water chiller can heat the corresponding water tank during heat exchange, the water supply temperature can be set, the water supply temperature requirement of a non-communication client is met, and the water supply flow is automatically adjusted. In addition, the air tightness test can be carried out on the cooling pipeline of the external product by the compressed air output in the device before the test, so that no leakage of a pipeline system is ensured before the cooling water is led into the product, and the cooling water in the product can be purged after the test is finished, so that the cooling water is recovered, and the waste is reduced.

Finally, because the double-cooling mode of the fin condenser 13 and the water-cooling condenser is adopted, the air cooling and water-cooling modes are well integrated, the air cooling mode can be adopted in winter to provide hot air for the site, and the water cooling mode can be adopted in summer, so that the energy is saved and the environment is protected.

It should be further noted that, in the present disclosure, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Therefore, it will be appreciated by those skilled in the art that any modifications and equivalent substitutions of the present embodiment without departing from the technical spirit of the present utility model can be made by those skilled in the art based on the technical principles disclosed in the present utility model, and the present utility model is also intended to be within the scope of the present utility model.

Claims (10)

1. The utility model provides a new forms of energy electricity drive assembly cold water machine for test bench that rolls off production line, includes condenser, water tank, its characterized in that: the water supply device is characterized by further comprising a water supply end (37) and a water return end (38) which are connected with a tested piece (1), wherein the water return end (38) is communicated with a first water tank (2) provided with a liquid level sensor (4), water in the first water tank (2) is pumped into a heat exchanger (8) through a first water pump (7) and then flows back, a water supplementing tank (5) which is connected with the first water tank (2) and provided with a liquid level switch (6) is further arranged above the first water tank (2), the water supplementing tank (5) is connected with an external cooling liquid barrel through a water supplementing pump (44), and the first water tank (2) is connected with the water supply end (37) through a second water pump (3);

the cooling water treatment device further comprises a second water tank (9), one side of the second water tank (9) is connected with the heat exchanger (8), the other side of the second water tank is connected with the compressor (12) and the condenser so as to realize the effect of cooling water, and the second water tank (9) is connected with the rack motor (11) through a third water pump (10) near the bottom end.

2. The new energy electric drive assembly of claim 1 for a test bench cold water machine, wherein: the water-cooled condenser is characterized by further comprising an optional water-cooled condenser (17), wherein the inlet and outlet ends of the optional water-cooled condenser (17) are respectively used for connecting an external industrial cooling water inlet (20) and an industrial cooling water return water inlet (19), and a water flow switch (18) is arranged on a pipeline connected with the industrial cooling water return water inlet (19).

3. The new energy electric drive assembly of claim 1 for a test bench cold water machine, wherein: the pipeline where the water supply end (37) is located is further provided with a pressure sensor (22), a first temperature sensor (23), a first valve, a first water pressure meter (31) and a flowmeter (32) in sequence, and the flowmeter (32) is located on one side of an outlet of the second water pump (3).

4. The new energy electric drive assembly of claim 3 for a test bench cold water machine, wherein: the pipeline where the water supply end (37) is located is also connected with a branch pipeline, and the branch pipeline is provided with a second valve, a check valve (24) and an air source processor (25).

5. The new energy electric drive assembly of claim 3 or 4, wherein the cold water machine for the offline test bench is characterized in that: the pipeline where the backwater end (38) is located is also provided with a second temperature sensor (21), a third valve and a filter (33) in sequence, and the outlet end of the filter (33) is connected with the first water tank (2).

6. The new energy electric drive assembly of claim 1 for a test bench cold water machine, wherein: a second water pressure gauge (34) is further arranged between the heat exchanger (8) and the first water pump (7), and water in the heat exchanger (8) flows back to the first water tank (2) through a heater (35).

7. The new energy electric drive assembly of claim 1 for a test bench cold water machine, wherein: the stainless steel coil pipe (16) connected with the condenser is positioned at the lower part in the second water tank (9), and the outlet end of the condenser is connected with a drying filter (33) (15).

8. The new energy electric drive assembly off-line test bench water chiller according to claim 7, wherein: a low-pressure gauge (27), a double-pressure switch (28), a high-pressure gauge (29) and a single-pressure switch (30) are sequentially connected between the inlet end and the outlet end of the compressor (12).

9. The new energy electric drive assembly of claim 1 for a test bench cold water machine, wherein: the water tank, the condenser, the heat exchanger (8) and connecting pipelines are all arranged in the cabinet body (26),

all water pumps are installed at the inner bottom of the cabinet body (26), the water supply end (37) and the water return end (38) are located on one side of the outer surface of the cabinet body (26), the water supplementing tank (5) is installed at the inner top of the cabinet body (26) on one side, the first water tank (2) is installed by means of the lower portion of the inner side of the cabinet body (26), the condenser is located at the inner top of the cabinet body (26) and is arranged by means of the water supplementing tank (5), the condenser comprises a fin condenser (13) and a water cooling condenser, and the fan (14) of the fin condenser (13) is installed in a round hole in the top of the cabinet body (26) and is just right to a heat exchange copper pipe.

10. The new energy electrically driven assembly off-line test bench water chiller according to claim 9, wherein: the water return end (38) is inserted into the cabinet body (26) through a water return pipe (41); the water tank partition board (40) is installed at the interior top department of second water tank (9), water tank partition board (40) are L type to form a buffering storehouse in second water tank (9), the exit end of wet return (41) is located in buffering storehouse, buffering storehouse upper portion is connected in reserve interface (39) department of cabinet body (26) side through a circulating line (42).