The test of PTC heater voltage proof and heat sink strip cementation integrated device
Technical field
The invention belongs to electronic and electric components testing apparatus technical field, be specifically related to the test of a kind of PTC heater voltage proof and heat sink strip cementation integrated device.
Background technique
Because PTC heater (also claims ptc heater; as follows) have that toggle speed is fast, temperature control good, functional reliability is high; the features such as Energy Efficiency Ratio excellence and long service life; thus be used as manufacturing the key element of all kinds of electrical heated appliance as air conditioner, heating device, clothes drier, dishwasher, water heater, food processor, heating type floor cleaner etc., even also as the core component of the control and scheduling co-design device of such as restrictor, overcurrent protector, overload protective device, degaussing controller, start-up connector and so on.Wherein, PTC heater is comparatively general as the application on the air conditioner of household electric appliance, and be no lack of in disclosed Chinese patent literature and be seen in, as CN2640002Y(PTC heater assembly), CN2753090Y(combined type PTC device thermal), CN201515508U(ptc heater supporting base and ptc heater), the heat-conducting aluminium pipe of a CN201499328U(PTC heater and PTC heater), the PTC heater of CN2548060Y(air conditioner and fixed support), CN2512191Y(improved TV radiator and special-purpose fixing support), CN2181789Y(all-enclosed surface not charging PTC heater), CN2917152Y(enclosed positive temperature coefficient thermistor heater), the totally-enclosed adhesive type surface of CN2349737Y(not electrified PTC heating device), CN2917158Y(PTC heater determine assembling structure) and CN202998521U(PTC heater), etc..
Under certain namely specified voltage conditions, be able to stable operation is consider the basic demand of PTC heater (normal working voltage of general PTC heater is 120V, 240V two kinds of specifications), especially, higher voltage rating is tolerated in order to ensure PTC heater, even can tolerate and be derived from power supply, load, associated electrical components, the surge voltage of power circuit exception and so on, thus the MANUFACTURER as PTC heater need carry out voltage proof test to PTC heater, voltage proof test applies higher than the voltage of one times of normal working voltage or more (as 240V to PTC heater, 480V) and maintain a period of time (being generally 2 minutes), then observe PTC heater with or without sparking, puncture, burn, the situation of distortion and so on.
In prior art, undertaken the PTC heater awaiting testing by a test by workman, at least there is following technical problem in this test mode: one, and labor strength is large; Its two, testing efficiency is low; Its three, poor stability; Its four, drop into manpower many, cause human resources to waste.
The technical information about PTC element voltage-resistant test device can be seen in disclosed Chinese patent literature, typically as " a kind of PTC heater power and the voltage-withstand test integrated machine " of Authorization Notice No. CN203414522U recommendation, because this patent can only be tested a PTC electric heating apparatus at every turn, thus testing efficiency is difficult to the industrialized mass production requirement meeting PTC heater, particularly withstand voltagely hold time when according to requirements must increase, efficiency is just very low.
And for example patent of invention publication No. CN10410181A provides " a kind of PTC component pressure testing apparatus ", the PTC element (positive temperature coefficient thermistor) that this patent formula is suitable for forming in PTC heater is tested, and the test for the PTC heater product used as the electric product being directly put to aforementioned air conditioner, heating device, water heater and so on does not have the enlightenment of referential technology.
As is known in the industry, PTC heater comprise usually by aluminum pipe serve as and the Heating core heat conductive tube that shape of cross section is rectangular, the intraluminal PTC Heating core of Heating core heat conduction being arranged on Heating core heat conductive tube and insulating ceramic film.Electrode layer (industry custom claims conductive electrode) is configured with in the both sides of PTC Heating core, insulating ceramic film and PTC Heating core are one to distribute every one, and by insulation layers as PTC Heating core and insulating ceramic film wrap up by insulation film (preferably adopting Kapton), electrode layer is drawn by wire and is connected with controller electrical control.In the energized state, PTC Heating core generates heat, and by the outside transferring heat of Heating core heat conductive tube, heat passes to the corrugated cooling strip (custom claims heat sink strip) be arranged on outside Heating core heat conductive tube, is distributed by heat by corrugated cooling strip.The PTC heater of this structure is generally used on air conditioner (specifically can see CN201499328U).
In the process manufacturing PTC heater, usually to manually aforesaid heat sink strip is passed through adhesive (adhesive is coated on the outer wall of Heating core heat conductive tube in advance) and Heating core heat conductive tube cementation, there is the deficiency that labor strength is large, cementation efficiency is low and anchoring effect is poor in this operating type, heat sink strip is there is and Heating core heat conductive tube divides de-situation in the using process of reality, affect the usefulness of PTC heater, and cause waste of energy.
Based at heat sink strip, whole PTC Heating core is just put to voltage proof test after completing by the work adhered to outside Heating core heat conductive tube, if thus the test of PTC heater voltage proof is carried out with heat sink strip cementation with running neck and neck, so certainly significantly can alleviate the operation intensity of workman, raise the efficiency and improve the anchoring effect of heat sink strip and Heating core heat conductive tube, use making heat sink strip reliable connection outside Heating core heat conductive tube because of can apply rational pressure to heat sink strip within the time period of voltage proof test simultaneously.The applicant has done useful design in view of this, and technological scheme described below produces under this background.
Summary of the invention
Task of the present invention is to provide a kind of and contributes to improving testing efficiency, be conducive to alleviating the manipulation strength of workman, be of value to and ensure safety, have and be convenient to clamp and have be good at reducing human input and can heat sink strip and the PTC heater voltage proof of Heating core heat conductive tube cementation being tested and heat sink strip cementation integrated device simultaneously.
Task of the present invention has been come like this, a kind of PTC heater voltage proof test and heat sink strip cementation integrated device, comprise a test bench, a table board is fixed with airborne, above this table board and the forward edge position being positioned at the length direction of table board is fixed with a blend stop on the top of this test bench; One electric control box, this electric control box is arranged on the front side of the length direction of described test bench; One cathode lead socket, this cathode lead socket is arranged on described test bench movably in the position of the left end corresponding to described table board, and is connected with described electric control box electrical control; One be connected with described electric control box electrical control for ordering about the cathode lead socket driving mechanism that described cathode lead socket moves, this cathode lead socket driving mechanism to be arranged in the position in left side corresponding to cathode lead socket on described test bench and to be connected with cathode lead socket; One warning mechanism, this warning mechanism is arranged on the rear side of the length direction of described test bench, and is electrically connected with described electric control box; One heat sink strip cementation pressure exerting arrangement, this heat sink strip cementation pressure exerting arrangement to be arranged in the position of front side corresponding to described warning mechanism on described test bench and to be connected with described electric control box electrical control.
In a specific embodiment of the present invention, the cushion block on the surface being raised in test bench is fixed with on the top of described test bench, the quantity of this cushion block has one group and length direction along test bench is spaced apart from left to right, described table board and cushion block are fixed, described cathode lead socket is connected with one piece of cushion block in left side, and described electric control box is arranged on the middle position of the front side of the length direction of test bench.
In another specific embodiment of the present invention, described cathode lead socket comprises jack body, socket cover, first guide rod and the second guide rod, first guide rod is fixed on the front end of one piece of cushion block in described left side with horizontal boom state, second guide rod is fixed on the rear end of one piece of cushion block in described left side equally with horizontal boom state, front end and first guide rod of jack body are slidably matched, and rear end and the second guide rod are slidably matched, power cathode reed chamber and positive source reed chamber is offered on this jack body and towards the length direction of the side of described table board, this power supply just, anode reed chamber formed each other one every one position relationship, and in power cathode reed chamber, be embedded with power cathode reed, and in positive source reed chamber, be embedded with positive source reed, power cathode reed draws wire by power cathode reed and described electric control box is electrically connected, positive source reed draws wire by positive source reed and electric control box is electrically connected, socket cover is being fixed corresponding to the position above the length direction of jack body and jack body, described electrode reed socket driving mechanism is connected with described jack body.
In another specific embodiment of the present invention, described cathode lead socket driving mechanism comprises driving acting cylinder seat and drives acting cylinder, acting cylinder seat is driven to be fixed on described test bench in the middle position in the left side corresponding to described jack body length direction, drive acting cylinder to be fixed on and drive on acting cylinder seat, and be connected with described electric control box electrical control, the end of the driving acting cylinder post of this driving acting cylinder is connected with jack body.
In another specific embodiment of the present invention, described driving acting cylinder is cylinder or oil cylinder.
Also have in a specific embodiment of the present invention, described warning mechanism comprises a beacon lamp bracket and one group of beacon, beacon lamp bracket is fixed on the rear side of the length direction of described test bench, one group of beacon is arranged on the front side of the length direction of beacon lamp bracket with space state, and is electrically connected by circuit and described electric control box.
More of the present invention and in a specific embodiment, described heat sink strip cementation pressure exerting arrangement comprises heat sink strip pushing bar, heat sink strip drives acting cylinder and heat sink strip pressurization cylinder, heat sink strip pushing bar is shelved on described table board and with the length direction of described blend stop and walks abreast, heat sink strip drives acting cylinder to be fixed on the rear side of the length direction of described test bench and to push the middle position of the length direction of bar corresponding with heat sink strip, this heat sink strip drives the heat sink strip of acting cylinder to drive acting cylinder post and heat sink strip to push away press strip link, the quantity of heat sink strip pressurization cylinder has two at least, and be fixed on described test bench in the position of the both sides corresponding respectively to heat sink strip driving acting cylinder, the heat sink strip pressurization cylinder post of this heat sink strip pressurization cylinder is towards described heat sink strip pushing bar, wherein: described heat sink strip drives acting cylinder and heat sink strip pressurization cylinder to be all connected with described electric control box electrical control.
In an of the present invention and then specific embodiment, on described heat sink strip pushing bar and corresponding to described heat sink strip, drive the position of acting cylinder to offer a pushing block adjustment tank, this pushing block adjustment tank is provided with a pushing block, and described heat sink strip drives acting cylinder post to be connected with pushing block.
More, in a specific embodiment, one is connected with for pushing the pushing tow cap of bar towards the direction pushing tow of described blend stop to described heat sink strip at the end of the heat sink strip pressurization cylinder post of described heat sink strip pressurization cylinder with thread connecting mode again of the present invention.
In an again of the present invention and then specific embodiment, described heat sink strip drives acting cylinder and heat sink strip pressurization cylinder to be cylinder or oil cylinder.
Technological scheme provided by the invention will await carrying out the PTC heater of voltage proof test to be parallel to the status park of blend stop on table board by tester in use, and make the electrode film of each PTC heater and negative electrode plate and the inserting of electrode slices socket, voltage proof test is carried out under to the operation of electric control box, apply towards the active force in the direction of blend stop by heat sink strip cementation pressure exerting arrangement to PTC heater simultaneously, heat sink strip and the Heating core heat conductive tube cementation of PTC heater is made within the time period of voltage proof test, pointed out by warning mechanism when PTC heater exists the situation to puncture and so on, thus not only testing efficiency is high, tester's manipulation strength is low, Security is reliable, and reliable connection effect to heat sink strip and Heating core heat conductive tube can be ensured, owing to being provided with blend stop and rational in infrastructure due to electrode slices socket on table board, thus clamping easily, both can reduce human input, the detection speed requirement in the industrial amplification production of PTC heater can be met again.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structural drawing.
Fig. 2 is application examples schematic diagram of the present invention.
Embodiment
In order to enable the auditor of Patent Office especially the public clearly understand technical spirit of the present invention and beneficial effect, claimant will elaborate below by way of example, but be not all the restriction to the present invention program to the description of embodiment, any conceive according to the present invention done be only pro forma but not substantial equivalent transformation and all should be considered as technological scheme category of the present invention.
Everyly in the following description relate to upper and lower, left and right, the concept of directivity (or claim directionality) of front and rear is all for the location status residing for the figure be described, object is to facilitate public understanding, thus can not be understood as being particularly limited to technological scheme provided by the invention.
Embodiment:
Refer to Fig. 1, figure 1 illustrates a test bench 1, this test bench 1 is arranged on the terrace of test site in a state of use, a table board 11 is fixed with the state of soaring above test bench, above this table board 11 and the forward edge position being positioned at the length direction of table board 11 adopts blend stop screw 1111 to be fixed with a blend stop 111 on the top of this test bench 1; Show an electric control box 2, this electric control box 2 is arranged on the front side of the length direction of test bench 1; Show a cathode lead socket 3, this cathode lead socket 3 is arranged on described test bench 1 movably in the position of the left end corresponding to table board 11, and is connected with electric control box 2 electrical control; Show one be connected with electric control box 2 electrical control for ordering about the cathode lead socket driving mechanism 4 that cathode lead socket 3 moves, this cathode lead socket driving mechanism 4 to be arranged in the position in left side corresponding to cathode lead socket 3 on test bench 1 and to be connected with cathode lead socket 3; Show a warning mechanism 5, this warning mechanism 5 is arranged on the rear side of the length direction of test bench, and is electrically connected with electric control box 2; One heat sink strip cementation pressure exerting arrangement 6, this heat sink strip cementation pressure exerting arrangement 6 to be arranged in the position of front side corresponding to warning mechanism 5 on test bench 1 and to be connected with electric control box 2 electrical control.
As shown in Figure 1, the cushion block 12 on the surface being raised in test bench 1 is fixed with on the top of aforesaid test bench 1, the quantity of this cushion block 12 has one group and length direction along test bench 1 is spaced apart from left to right, aforesaid table board 11 is fixed with cushion block 12, because cushion block 12 is raised in test bench 1, thus, after table board 11 and cushion block 12 are fixing, table board 11 can be made to soar in the top of test bench 1.Aforesaid cathode lead socket 3 is connected with one piece of cushion block 12 in left side, aforesaid electric control box 2 arranges the middle position of the front side of the length direction of fixing test platform 1 in sight, but also electric control box 2 can corresponded to the front side left end of test bench 11 or the position of right-hand member and test bench 1 is fixed.
Above mentioned cathode lead socket 3 preferably but not the structure be definitely limited to is as follows: comprise jack body 31, socket cover 32, first guide rod 33 and the second guide rod 34, first guide rod 33 is fixed on the left of the front end of one piece of cushion block 12 in aforementioned left side with horizontal boom state, second guide rod 34 is fixed on the left of the rear end of one piece of cushion block 12 in left side equally with horizontal boom state, the front end of jack body 31 is slidably matched by guide rod sliding eye 313 and the first guide rod 33, and rear end is slidably matched by guide rod sliding eye 313 and the second guide rod 34 equally, length direction on this jack body 31 and towards one (i.e. right side) of aforementioned table board 11 offers power cathode reed chamber 311 and positive source reed chamber 312, this power supply just, anode reed chamber 312, 311 each other formed one every one position relationship, and in power cathode reed chamber 311, be embedded with power cathode reed 3111, and in positive source reed chamber 312, be embedded with positive source reed 3121, power cathode reed 3111 is drawn wire 31111 by power cathode reed and is electrically connected with aforementioned electric control box 2, positive source reed 3121 is drawn wire 31211 by positive source reed and is electrically connected with electric control box 2, the position of socket cover 32 above the length direction corresponding to jack body 31 is fixed with jack body 31 by inserting lid screw 321, aforesaid electrode reed socket driving mechanism 4 is connected with jack body 31.
Aforesaid cathode lead socket driving mechanism 4 comprises driving acting cylinder seat 41 and drives acting cylinder 42, acting cylinder seat 41 is driven to be fixed on aforementioned test bench 1 in the middle position in the left side corresponding to aforesaid sockets body 31 length direction, driving acting cylinder 42 to adopt screw to be fixed on drives on acting cylinder seat 41, and be connected with the electrical control of aforesaid electric control box 2, the end of the driving acting cylinder post 421 of this driving acting cylinder 42 is connected with jack body 31.
In the present embodiment, aforesaid driving acting cylinder 42 is cylinder, if but replace cylinder for evading object of the present invention with oil cylinder, so should be considered as equivalence substitute and still belong to technology contents category disclosed by the invention.The concept that claimant is connected with electric control box 2 electrical control at above mentioned driving acting cylinder 42 is: when driving acting cylinder 42 for cylinder, be connected providing the compressed air source unit of pressure air such as the solenoid valve via line of air compressor for cylinder with electric control box 2 electrical control; When driving acting cylinder to be oil cylinder, be connected providing the oil source apparatus of hydraulic oil such as the solenoid valve via line of oil hydraulic pump for oil cylinder with electric control box 2 electrical control.
Please continue to refer to Fig. 1, aforesaid warning mechanism 5 comprises a beacon lamp bracket 51 and one group of beacon 52, beacon lamp bracket 51 is fixed on the rear side of the length direction of aforementioned test bench 1, one group of beacon 52 is arranged on the front side of the length direction of beacon lamp bracket 51 with space state, and is electrically connected by circuit and aforementioned electric control box 2.
Aforesaid heat sink strip cementation pressure exerting arrangement 6 comprises heat sink strip pushing bar 61, heat sink strip drives acting cylinder 62 and heat sink strip pressurization cylinder 63, heat sink strip pushing bar 61 is shelved on aforesaid table board 11 and with the length direction of aforesaid blend stop 111 and walks abreast, heat sink strip drives acting cylinder 62 to be fixed on the rear side of the length direction of aforementioned test bench and to push the middle position of the length direction of bar 61 corresponding with heat sink strip, the heat sink strip driving acting cylinder post 621 of this heat sink strip driving acting cylinder 62 pushes bar 61 with heat sink strip and is connected, the quantity of heat sink strip pressurization cylinder 63 has at least two (the present embodiment is three), and be fixed on test bench 1 in the position of the both sides corresponding respectively to heat sink strip driving acting cylinder 62, the heat sink strip pressurization cylinder post 631 of this heat sink strip pressurization cylinder 63 is towards heat sink strip pushing bar 61, wherein: aforesaid heat sink strip drives acting cylinder 62 and heat sink strip pressurization cylinder 63 to be all connected with the electrical control of aforementioned electric control box 2, in the present embodiment, heat sink strip drives acting cylinder 62 and heat sink strip pressurization cylinder 63 to be cylinder, but also can use oil cylinder, the mode that this heat sink strip drives acting cylinder 62 and heat sink strip pressurization cylinder 63 to be connected with electric control box 2 electrical control is as to the description driving acting cylinder 42.
Preferably, on aforesaid heat sink strip pushing bar 61 and corresponding to described heat sink strip, drive the position of acting cylinder 62 to offer a pushing block adjustment tank 611, this pushing block adjustment tank 611 is provided with a pushing block 6111, and aforesaid heat sink strip drives acting cylinder post 621 to be connected with pushing block 6111.
Preferably, be fixedly connected with mode at the end of the heat sink strip pressurization cylinder post 631 of aforesaid heat sink strip pressurization cylinder 63 with screw thread and be fixed with one for pushing the pushing tow cap 6311 of bar 61 towards the direction pushing tow of described blend stop 111 to described heat sink strip.
Application examples:
Refer to Fig. 2 and composition graphs 1, all illustrate the PTC heater 7 belonging to known technology category in fig. 1 and 2, when voltage proof test will be carried out to PTC heater 7, be arranged on table board 11 by there being the Heating core heat conductive tube 71 of the PTC heater 7 of adhesive in advance in front and back side spray, and heat sink strip 72 of respectively arranging in the side, front and back of Heating core heat conductive tube 71, and the negative electrode guide card 73 of PTC heater 7 inserted power cathode reed chamber 311 and makes itself and power cathode reed 3111 electrical contact, the positive electrode guide card 74 of PTC heater 7 inserted positive source reed chamber 312 simultaneously and make itself and positive source reed 3121 electrical contact.When completing on table board 11 after according to the arrangement of PTC heater 7 needing quantity, by tester, the corresponding button 21 on electric control box 2 is operated, specifically, heat sink strip cementation pressure exerting arrangement 6 works, the heat sink strip of acting cylinder 62 is driven to drive acting cylinder post 62 to promote pushing block 6111 by heat sink strip, drive heat sink strip to push bar 61 towards the direction displacement of blend stop 11 by pushing block 6111, all PTC heaters 7 are close together with neat state.And then push bar 61 by pushing tow cap 6311 pairs of heat sink strips of heat sink strip pressurization cylinder post 631 end of heat sink strip pressurization cylinder 63 and apply active force, the control of all PTC heaters 7 is pushed between bar 61 at blend stop 111 and heat sink strip.Can make heat sink strip 72 fully and Heating core heat conductive tube 71 cementation under the effect of the pressure.Again then, the driving acting cylinder 42 of cathode lead socket driving mechanism 4 is worked, cathode lead drives acting cylinder post 421 to stretch outside cylinder body, make the jack body 31 of cathode lead socket 3 follow first, second guide rod 33,34 namely to move to the direction of PTC heater 7 to the right, with guarantee aforesaid positive and negative electrode guide card 74,73 be able to fully respectively with power supply positive and negative electrode reed 3121,3111 electrical contact.Under aforesaid state, then the corresponding button 21 on electric control box 2 is operated by tester, the power circuit making the beacon 52 of warning mechanism 5 and power supply positive and negative electrode reed draw wire 31211,31111 is connected, and PTC heater 7 is successfully connected in power loop.If the applicable operating voltage of PTC heater is 120V, so first making PTC heater 7 be in voltage by the operation of tester to electric control box 2 is in the power loop of 120V, again voltage is risen to 240V and maintain about about 2 minutes after about 2 minutes; If the applicable operating voltage of PTC heater is 220V, so first the voltage proof test of 220V is done to it and maintain about about 2 minutes, then voltage be increased to 480V and maintain about 2 minutes.In aforementioned voltage-withstand test process, if the situation of sparking and so on appears in a certain PTC heater 7, the power loop so corresponding to the PTC heater 7 of this fault is cut off, and the beacon 52 of warning mechanism 5 extinguishes.There is sparking, air-break switch on corresponding circuit will disconnect, the circuit not conducting of now corresponding PTC heater 7, corresponding beacon 52 extinguishes, and tester just can confirm according to the extinguishing of beacon 52 easily not by the PTC heater 7 of voltage proof test.By tester, the PTC heater 7 of fault is rejected after a loss of power.After test terminates, the first reverse operation of aforesaid driving acting cylinder 42, and then aforesaid heat sink strip drives acting cylinder 62 and heat sink strip pressurization cylinder 63 reverse operation, and under the state of cutting off the electricity supply, the PTC heater 7 completing test is got from, change next batch await do voltage proof test PTC heater 7.
In sum, technological scheme provided by the invention overcomes the shortcoming in prior art, complete invention task, embody the technique effect referred in the superincumbent technique effect hurdle of claimant, can yet be regarded as is a ultimate attainment technological scheme being controlled the quality of product of PTC heater.