CN217561639U - PTC heating core body voltage withstand test device - Google Patents

Abstract

The utility model provides a PTC heating core withstand voltage test device, the on-line screen storage device comprises a base, be equipped with at least one test subassembly and at least a set of core direction subassembly on the base, test subassembly and core direction subassembly one-to-one, the test subassembly includes core electrode slice deflector and two probe mounting boards, sets up a plurality of electrode slice guide ways that the power supply electrode slice stretched into on the core electrode slice deflector, in the both sides that core electrode slice deflector is relative, each electrode slice guide way interval distribution in vertical direction, core direction subassembly includes two core baffles, two the core baffle sets up side by side and constitutes the core guide way that supplies PTC heating core to stretch into, and the core guide way is just to core electrode slice deflector, and two probe mounting boards are located the both sides of core electrode slice deflector respectively, and the probe mounting board is used for compressing tightly the probe of electrode slice when being equipped with the test towards the one end of core electrode slice deflector, and the test subassembly still includes the actuating mechanism who drives probe electrode slice.

Description

PTC heating core body voltage withstand test device

Technical Field

The utility model relates to a new energy automobile and other industrial electronics fields especially relate to a PTC generates heat core withstand voltage testing arrangement.

Background

The new energy automobile industry is developed rapidly, has wide prospect, has increasingly severe competition, and is vital to improve the production efficiency and control the cost. The PTC automobile air conditioner heater is an indispensable part in the field of electric automobiles due to stable performance, high temperature rise speed, small influence of an external power supply and the like. The requirement of the heater core is large, the positions of notches which are correspondingly contacted with electrode plates are difficult to align due to the clamping groove elastic sheet type structure adopted by the original voltage-resistant test, the positioning time is slow, and the efficiency is low; and the contact of the elastic sheet of the interface clamping groove is unstable and easy to burn out, the service life of the elastic sheet is low, the replacement frequency is high, and the cost is wasted. In addition, the notch spring piece type device is very easy to strike sparks in the test of inserting the core electrode slice, and potential safety hazard is caused.

Therefore, it is necessary to design a new device for testing the voltage resistance of the PTC heating core to overcome the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a PTC generates heat core withstand voltage test device, the utility model discloses partial problem among the prior art has been solved at least

The utility model discloses a realize like this:

the utility model provides a PTC heating core withstand voltage test device, including the base, be equipped with at least one test subassembly and at least a set of core direction subassembly on the base, test subassembly with core direction subassembly one-to-one, test subassembly includes core electrode slice deflector, set up a plurality of electrode slice guide ways that supply the electrode piece to stretch into on the core electrode slice deflector relative both sides, each the electrode slice guide way is interval distribution on vertical direction, core direction subassembly includes two core baffles, two the core baffle sets up side by side and constitutes the core guide way that supplies the PTC heating core to stretch into, the core guide way is just right core electrode slice deflector, test subassembly still includes two probe mounting panels, two the probe mounting panel is located respectively the both sides of core electrode slice deflector, the probe mounting panel orientation be used for compressing tightly a plurality of electrode slices, each when the one end of core electrode slice deflector is equipped with the test the probe along vertical direction interval distribution, the probe is just right the electrode slice guide way, test subassembly still includes the drive mechanism that drive probe compressed tightly the electrode slice with the drive.

Further, actuating mechanism includes the cylinder, the cylinder adopts pneumatic finger cylinder, the cylinder includes the cylinder connecting plate of being connected with the piston rod, the cylinder connecting plate with the probe mounting panel links to each other.

Further, still be equipped with the cylinder limiting plate on the base, the cylinder limiting plate is located between two cylinder connecting plates.

Further, still be equipped with the cylinder mounting panel on the base, the cylinder is installed on the cylinder mounting panel.

Further, the PTC heating core body voltage-withstanding testing device further comprises an electrode plate guide plate fixing plate, the electrode plate guide plate fixing plate is arranged at the top of the cylinder mounting plate, and the top of the core body electrode plate guide plate is connected with the electrode plate guide plate fixing plate.

Furthermore, one side of the cylinder mounting plate, which deviates from the cylinder, is provided with a cylinder mounting plate reinforcing rib.

Furthermore, in one test assembly, one probe mounting plate is provided with a positive connecting wire electrically connected with the probe, and the other probe mounting plate is provided with a negative connecting wire electrically connected with the probe.

Furthermore, the base is provided with two testing assemblies and two core body guiding assemblies, and the two testing assemblies are arranged side by side at intervals.

The utility model discloses following beneficial effect has:

1. the utility model provides a PTC heating core withstand voltage test device, electrode slice aim at easily, and the location is fast, and is efficient, and the contact is stable, and the testing process is safe and dangerous, and long service life has solved artifical and the high problem of material loss cost.

2. The core baffle and the base of the device are made of high-temperature-resistant synthetic stone and can resist high temperature of 280 ℃, the contact area of the 50A elastic probe and the electrode slice is large, the elastic probe cannot shake after being compressed, current input is stable, and the service life is long.

3. This device operation is stable, the condition such as strike sparks can not appear, and the operational safety promotes greatly.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly introduced, obviously, the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a PTC heating core withstand voltage testing apparatus provided in an embodiment of the present invention;

FIG. 2 is a partial schematic view of the electrode sheet guide plate fixing plate shown in FIG. 1 with the top removed from the left;

FIG. 3 is a partial schematic view of the electrode plate guide plate fixing plate shown in FIG. 1 with the top removed from the right;

fig. 4 is a top view of the PTC heating core withstand voltage testing apparatus provided in the embodiment of the present invention;

fig. 5 is a top view of the PTC heating core voltage withstand testing apparatus provided in the embodiment of the present invention after removing the top electrode plate guide plate fixing plate;

fig. 6 is a side view of the PTC heating core voltage withstand testing apparatus provided in the embodiment of the present invention after removing the electrode plate guide plate fixing plate at the top;

fig. 7 is a schematic view of a core electrode plate guide plate provided by an embodiment of the present invention;

fig. 8 is a schematic view of the PTC heating core body pressure resistance testing device provided in the embodiment of the present invention after being placed in the PTC heating core body;

fig. 9 is a left enlarged view of fig. 8 according to an embodiment of the present invention;

fig. 10 is a right enlarged view of fig. 8 according to an embodiment of the present invention;

fig. 11 is a schematic view of an electrode plate, an electrode plate guide groove and a probe according to an embodiment of the present invention.

The labels in the figure are: 1. a base; 2. a probe; 3. an electrode plate guide plate fixing plate; 4. a first positive electrode connection line; 5. a cylinder mounting plate; 6. the cylinder mounting plate is provided with a reinforcing rib; 7. the cylinder is connected through a pipeline; 8. a cylinder connecting plate; 9. a cylinder limiting plate; 10. a probe mounting plate; 11. a core body baffle; 12. a core electrode plate guide plate; 13. a first negative connection line; 14. a second positive electrode connection line; 15. a cylinder; 16. a second negative connection line; 17. a PTC heating core; 18 a core guide slot; 19. an electrode sheet; 20. electrode slice guide way.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1-11, the embodiment of the present invention provides a PTC heating core voltage withstand testing device (PTC thermistor), which comprises a base 1, at least one testing assembly and at least one set of core guiding assembly are disposed on the base 1, the testing assembly corresponds to the core guiding assembly one by one, the testing assembly comprises a core electrode plate guiding plate 12, a plurality of electrode plate guiding slots 20 for electrode plates 19 to extend into are disposed on the core electrode plate guiding plate 12, as shown in fig. 7, the electrode plate guiding slots 20 are disposed, the inlet of the electrode plate guiding slots 20 can be set larger for electrode plates 19 to extend into, at two opposite sides of the core electrode plate guiding plate 12, each electrode plate guiding slot 20 is distributed at intervals in the vertical direction, the core guiding assembly comprises two core baffles 11, two the core baffle 11 sets up side by side and constitutes the core guide way 18 that supplies PTC heating core 17 to stretch into, core guide way 18 just faces core electrode slice deflector 12, PTC heating core 17 moves along core guide way 18, PTC heating core 17 includes a plurality of PTC heating units from top to bottom, each PTC heating unit is equipped with two electrode slices 19 towards the one end of core electrode slice deflector 12, electrode slice 19 stretches into electrode slice guide way 20, when PTC heating core 17 butts core electrode slice deflector 12 and no longer moves forward, the utility model discloses a manual work is put PTC heating core 17, the test assembly still includes two probe mounting boards 10, two probe mounting boards 10 are located respectively the both sides of core electrode slice deflector 12, probe mounting board 10 is towards the one end of core electrode slice deflector 12 is equipped with a plurality of probes 2 that are used for compressing electrode slice 19 during the test, the probe 2 adopts a 50A elastic probe, the contact area of the 50A elastic probe and an electrode plate is large, the probe does not shake after being compressed, the current input is stable, the service life is long, the current which can pass through the probe 2 can reach 50A at most, the probes 2 are distributed at intervals along the vertical direction, the probes 2 are right opposite to the electrode plate guide grooves 20, the probes 2 correspond to the electrode plate guide grooves 20 one to one, the test assembly further comprises a driving mechanism which drives the probe mounting plate 10 to drive the probes 2 to compress the electrode plate 19, and fig. 11 is a schematic diagram of the probe 2 compressing the electrode plate 19 during testing. Because the core temperature is higher when the test is withstand voltage, base 1 and core baffle 11 adopt high temperature resistant material, and can not touch the core when the test to scald.

The driving mechanism comprises an air cylinder 15, the air cylinder 15 adopts a pneumatic finger air cylinder, in this embodiment, the air cylinder 15 adopts an MHL2-20D-Y59A air cylinder, the air cylinder 15 comprises an air cylinder connecting plate 8 connected with a piston rod, the air cylinder connecting plate 8 is connected with the probe mounting plate 10, and the air cylinder connecting plate 8 drives the probe mounting plate 10 to move towards the direction of the core electrode plate guide plate 12. In fig. 5 there is shown a cylinder line connection 7, which supplies the cylinder with compressed gas. The testing device is characterized in that an air cylinder limiting plate 9 is further arranged on the base 1, the air cylinder limiting plate 9 is located between the two air cylinder connecting plates 8, after the PTC heating core body 17 is placed in place, the testing starts, the air cylinder 15 drives the two air cylinder connecting plates 8 to be close to the middle core body electrode plate guide plate 12, the two air cylinder connecting plates 8 stop moving after being abutted to the air cylinder limiting plate 9, at the moment, the probe 2 compresses the electrode plate 19, stable current input is started after compression, and the voltage withstanding testing is carried out. PTC heating core withstand voltage testing arrangement still includes the controller, and the controller is used for control cylinder action, control connection line to give the core circular telegram, and the test is accomplished back cylinder 15 and is driven 2 automatic re-setting of probe, unqualified then can the suggestion of reporting to the police, then continues next a set of test, the utility model discloses mainly be the structure invention, automatically controlled part is prior art, only does brief description, no longer gives details here. After the test is started, the test time is up, if the alarm does not appear, the core body pressure resistance test is OK, if the alarm appears, the core body test is unqualified, and the core body needs to be manually sorted out to be classified and identified for storage.

Still be equipped with cylinder mounting panel 5 on the base 1, cylinder 15 installs on cylinder mounting panel 5. The PTC heating core body pressure resistance testing device further comprises an electrode plate guide plate fixing plate 3, the electrode plate guide plate fixing plate 3 is arranged at the top of the cylinder mounting plate 5, and the top of the core body electrode plate guide plate 12 is connected with the electrode plate guide plate fixing plate 3. And a cylinder mounting plate reinforcing rib 6 is arranged on one side of the cylinder mounting plate 5 deviating from the cylinder.

In a test assembly, a probe mounting plate 10 is provided with a positive connecting wire electrically connected with the probe on the probe mounting plate, another probe mounting plate 10 is provided with a negative connecting wire electrically connected with the probe on the probe mounting plate, and the positive connecting wire and the negative connecting wire are both connected with a power supply. The controller controls the connecting wires to electrify the PTC heating core body 17. In this embodiment, two testing assemblies are provided, a first positive connecting wire 4 is provided on the left probe mounting plate 10 of the first testing assembly, a first negative connecting wire 13 is provided on the right probe mounting plate 10 of the first testing assembly, a second positive connecting wire 14 is provided on the left probe mounting plate 10 of the second testing assembly, and a second negative connecting wire 16 is provided on the right probe mounting plate 10 of the second testing assembly. In this embodiment, be equipped with two test component and two core direction subassemblies, two on the base 1 the test component sets up at the interval side by side, according to actual demand, still can set up more test component on the base 1, and this device can once test a PTC heating core or a plurality of PTC heating core.

The utility model discloses a manual work is placed PTC and is generated heat core 17, and the automatic multiunit electrode slice two poles of the earth that inwards compress tightly core one end of probe carry out the circular telegram test after starting, and automatic re-setting after accomplishing and report to the police to the defective work can be according to core or a plurality of cores of actual conditions one-time test, owing to need not do too high requirement to the electrode slice position, directly before the test counterpoint the core guiding groove 18 roughly with the core, then push away the place ahead spacing department can, place speed one time faster than original. Then the device is started, the air cylinder 15 drives the probe 2 (50A elastic probe, the maximum current which can pass through the probe can reach 50A) to press the electrode plates inwards on two sides, and stable current input is started after pressing, so that automatic test is carried out. After the test is finished, the air cylinder 15 drives the probe 2 to automatically reset, and if the test is not qualified, an alarm is given. And then continue with the next group.

The device has simple structure and low manufacturing cost, and each set of device only needs 5000 yuan. And the operation and use are simple, the operation is easy, and the operation and use are suitable for common workers. The whole device needs to be supported by a base rack, and the test action and detection are automatically controlled by electronics. The core body is manually taken and a starting switch is pressed, and if unqualified core body products are found, the core body products are classified, stored and identified by operators. The device condition requires: the compressed gas and alternating current 220V-5A common power supply of 0.4Mpa to 0.6Mpa are needed, and the power supply actually needed by the core body test is needed.

The device has the following advantages: artifical efficiency improves, goes up the frock time, according to 1 times 2 groups of location (cores), former manual work is ordered: 2 groups/10S, with this device only: 2 groups/5S. The efficiency is improved by 100 percent.

Alleviate workman's fatigue, get and put swiftly. Because the notch correspondingly contacted with the electrode plate is smaller in the conventional clamping groove elastic sheet type structure, the eyes and the body are easily tired due to the original manual long-time operation; after the device is adopted, the positioning and placing piece does not need to be looked at by eyes, the core body is placed into the core body guide groove 18 and pushed forward to the right position, and then the switch is started to wait for the completion of the test. The device has no special requirement on the environment, can run under the conditions of-5-40 ℃ and humidity of 15-75 percent, does not produce environmental pollution when used, has no dangerous devices such as rotation and the like, is connected with an alternating current 220V power supply for power supply, has the gas connected with 0.4-0.6 Mpa, has the maximum cylinder pressure of 16Kgf, and has high operation safety.

The using principle of the device is simply explained as follows:

firstly, a power supply and compressed air are switched on, the PTC heating core body 17 needing to be detected is placed, then a switch is started, the air cylinder acts to be pressed inwards, the probe 2 compresses the core body electrode plate 19, the electrification detection is started, the test is completed, the air cylinder resets, the tested PTC heating core body 17 is taken out, and if unqualified classification marks exist, the PTC heating core body 17 is placed. Specifically, the testing device is connected with a 220V power supply, the air inlet pipe is connected with 0.4 Mpa-0.6 Mpa compressed air, a power supply main switch is turned on, then the cured core body is pushed forward to a proper position by the guide groove (figure 8), and after the two PTC heating core bodies are placed, the switch button is started. After the test device is started, the air cylinder acts to contract inwards, so that the probes are pressed against electrode plates (shown in figure 11) at the front end of the core body from two sides, the air cylinder connecting plate is limited, and stops when the probe arrives at a position, and the controller energizes the core body through the connecting wire to start testing. And waiting for the test time, if the alarm does not appear, indicating that the core body pressure resistance test is OK, and if the alarm does not appear, indicating that the core body test is unqualified, and sorting the core body out of the classification marks for storage.

The device is used for new energy automobile PTC wind heater withstand voltage test process at present, and the product location and the probe mounted position can be changed to the device to be suitable for various standard core class products of the same type, also can be used to similar products such as other industrial electronics. The utility model discloses mainly be the structure invention, automatically controlled part only does brief description. The device is just placed on a production line workbench in size, and assembly line operation is convenient to arrange.

Those not described in detail in this specification are well within the skill of the art.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a PTC heating core body withstand voltage testing device which characterized in that: the testing assembly comprises a base, wherein at least one testing assembly and at least one group of core guide assemblies are arranged on the base, the testing assembly corresponds to the core guide assemblies one by one, the testing assembly comprises a core electrode plate guide plate, a plurality of electrode plate guide grooves for the electrode plates to extend into are formed in the core electrode plate guide plate, the two opposite sides of the core electrode plate guide plate are distributed at intervals in the vertical direction, the core guide assembly comprises two core baffles and two probe mounting plates, the core baffles are arranged side by side to form the core guide grooves for the PTC heating core to extend into, the core guide grooves are right opposite to the core electrode plate guide plate, the testing assembly further comprises two probe mounting plates, the two probe mounting plates are respectively located at the two sides of the core electrode plate guide plate, the probe mounting plates face towards one end of the core electrode plate guide plate and are provided with a plurality of probes for compressing the electrode plates during testing, the probes are distributed at intervals in the vertical direction, the probes are right opposite to the electrode plate guide grooves, and the testing assembly further comprises a driving mechanism for driving the probe mounting plates to compress the probes.

2. A PTC heating core voltage withstanding test apparatus according to claim 1, wherein: the driving mechanism comprises a cylinder, the cylinder adopts a pneumatic finger cylinder, the cylinder comprises a cylinder connecting plate connected with a piston rod, and the cylinder connecting plate is connected with the probe mounting plate.

3. A PTC heating core voltage withstanding test apparatus according to claim 2, wherein: and the base is also provided with an air cylinder limiting plate, and the air cylinder limiting plate is positioned between the two air cylinder connecting plates.

4. A PTC heating core withstand voltage test device according to claim 2, wherein: still be equipped with the cylinder mounting panel on the base, the cylinder install in on the cylinder mounting panel.

5. A PTC heating core withstand voltage test device according to claim 4, wherein: the electrode plate guide plate fixing plate is arranged at the top of the cylinder mounting plate, and the top of the core electrode plate guide plate is connected with the electrode plate guide plate fixing plate.

6. A PTC heating core withstand voltage test device according to claim 4, wherein: and one side of the cylinder mounting plate deviating from the cylinder is provided with a cylinder mounting plate reinforcing rib.

7. A PTC heating core voltage withstanding test apparatus according to claim 1, wherein: in one testing assembly, one probe mounting plate is provided with a positive connecting wire electrically connected with the probes, and the other probe mounting plate is provided with a negative connecting wire electrically connected with the probes.

8. A PTC heating core withstand voltage test device according to claim 1, wherein: the base is provided with two testing assemblies and two core body guiding assemblies, and the two testing assemblies are arranged side by side at intervals.

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