CN113296002A - Electrical connection structure of galvanic pile voltage inspection system - Google Patents
Electrical connection structure of galvanic pile voltage inspection system Download PDFInfo
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- CN113296002A CN113296002A CN202110529327.8A CN202110529327A CN113296002A CN 113296002 A CN113296002 A CN 113296002A CN 202110529327 A CN202110529327 A CN 202110529327A CN 113296002 A CN113296002 A CN 113296002A
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- voltage inspection
- bipolar plate
- circuit board
- connection structure
- electrical connection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention relates to an electrical connection structure of a galvanic pile voltage inspection system, which comprises: the bipolar plate is provided with a first groove penetrating through the plate surface of the bipolar plate; the voltage inspection terminal is arranged on one side of the bipolar plate and comprises a main body attached to the bipolar plate and a bending structure bending and extending from the main body to one side, and the bending structure is inserted into the first groove; and the circuit board is electrically connected with the voltage inspection terminal. According to the electrical connection structure of the electric pile voltage inspection system, after the voltage inspection terminal is installed on the bipolar plate, the main body of the voltage inspection terminal can be attached to the bipolar plate, meanwhile, the bending structure which is bent and extends from the main body to one side of the main body can be inserted into the first groove, so that the voltage inspection terminal can be in contact with the bipolar plate stably, and therefore, even under the working conditions of the extreme ends such as a vibration environment, expansion caused by heat and contraction caused by cold, the voltage inspection terminal is not easy to separate from the bipolar plate, and the phenomenon of instantaneous circuit break is not easy to occur.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to an electrical connection structure of a galvanic pile voltage inspection system.
Background
At present, a fuel cell is a device for directly converting chemical energy of an oxidant and a reductant into electric energy through electrocatalysis reaction, and is a novel power generation technology which is efficient, safe, clean and flexible. The fuel cell stack is a place where electrochemical reaction occurs and is also a core part of a fuel cell power system, the fuel cell stack is formed by stacking a plurality of single cells in series, and one stack generally comprises several, dozens or even hundreds of single cells. The bipolar plates and the membrane electrode are alternately superposed, sealing elements are embedded between the monomers, and the monomers are tightly fastened and fastened by screw rods and the like after being tightly pressed by the front end plate and the rear end plate, so that the fuel cell stack is formed. When the fuel cell stack works, hydrogen and oxygen are respectively introduced from inlets, distributed to the bipolar plates of the monocells through the stack gas main channel, uniformly distributed to the electrodes through the flow guide of the bipolar plates, and contacted with a catalyst through the electrode support body to carry out electrochemical reaction.
However, due to the non-uniformity among the single batteries, the voltage of each single battery is greatly reduced, so that the voltage is close to 0V, and even negative voltage (namely, reverse polarity) is generated. When the phenomenon of counter electrode or high voltage occurs, carbon corrosion is generated slightly, and the service life of the galvanic pile is shortened; if so, the fuel cell directly burns through the membrane electrode and the bipolar plate, so that the fuel cell is directly scrapped. Therefore, the fuel cell system must monitor the voltage of the stack single chip in real time, and adjust the operation condition or reduce the power requirement in real time, thereby avoiding the occurrence of negative pressure and other severe working conditions to cause the damage of the fuel cell stack.
In the related art, a stack voltage polling device (i.e., a CVM) is generally used to electrically connect with a bipolar plate of a single battery, and the stack voltage polling device is used to monitor the voltage of a single cell of the stack in real time; referring to fig. 1, one of the ways of electrically connecting the stack voltage polling device with the bipolar plate of the single cell is as follows: the metal elastic sheet 2 'is welded and fixed on the bottom surface of the adapter circuit board 1', the metal elastic sheet 2 'can be in contact with the upper surface of the bipolar plate 3' below the adapter circuit board 1 'to realize electric conduction, the adapter circuit board 1' is fixed with the stack pressing plate, the adapter connector 4 'is fixed on the upper surface of the adapter circuit board 1', the adapter wire harness is connected through the adapter connector 4 ', and the adapter wire harness is in butt-plug electric connection with the stack voltage inspector, so that the electric connection of the bipolar plate 3' and the stack voltage inspector is realized.
However, since the gap between the bipolar plates is generally about 1.2 mm, the width of the metal spring is limited, the contact area between the bipolar plates and the upper surface of the metal spring is finally limited, and an instantaneous open circuit condition may occur under the extreme working conditions of a vibration environment, thermal expansion, cold contraction and the like.
Therefore, there is a need for a new electrical connection structure of a stack voltage inspection system to overcome the above problems.
Disclosure of Invention
The embodiment of the invention provides an electrical connection structure of a galvanic pile voltage inspection system, which aims to solve the problems that in the related art, a metal elastic sheet fixedly arranged on a circuit board is in contact with the upper surface of a bipolar plate, the width of the metal elastic sheet is limited, and instantaneous open circuit is easy to occur under extreme working conditions such as a vibration environment, thermal expansion and cold contraction and the like.
In a first aspect, an electrical connection structure of a galvanic pile voltage inspection system is provided, which includes: the bipolar plate is provided with a first groove penetrating through the plate surface of the bipolar plate; the voltage inspection terminal is arranged on one side of the bipolar plate and comprises a main body attached to the bipolar plate and a bending structure bending and extending from the main body to one side, and the bending structure is inserted into the first groove; and the circuit board is electrically connected with the voltage inspection terminal.
In some embodiments, the body defines a bore; the bipolar plate is provided with tabs that are bent into the perforations and into contact with the body.
In some embodiments, the bending structure passes through the first groove and bends into the through hole to contact the tongue.
In some embodiments, a support lug is arranged on one side of the bipolar plate, and the first groove is arranged on the support lug; the main part with the journal stirrup laminating, just the main part with the insulating cover is established to the journal stirrup overcoat.
In some embodiments, the circuit board is provided with a second groove, a conductive layer is laid on an inner wall of the second groove, and the main body is inserted into the second groove and contacts with the conductive layer.
In some embodiments, at least one side of the main body is provided with a spring plate, and the spring plate is abutted against the conductive layer.
In some embodiments, the circuit board is provided with a switching connector, and the switching connector is electrically connected with the stack voltage inspector through an inspection wiring harness.
In some embodiments, the stack voltage inspector comprises the circuit board, and an insulating layer is fixedly arranged on the outer surface of the circuit board.
In some embodiments, the electrical connection structure further includes a pressing plate pressed on the surface of the circuit board, and an insulating pad is sandwiched between the pressing plate and the circuit board.
In some embodiments, the opposite sides of the bipolar plate are fixedly provided with an air inlet end plate and a blind end plate respectively, and the pressing plate is connected with the air inlet end plate through a bolt and connected with the blind end plate through a bolt.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides an electrical connection structure of a stack voltage inspection system, because the bipolar plate is provided with the first groove, after the voltage inspection terminal is installed on the bipolar plate, the main body of the voltage inspection terminal can be attached to the bipolar plate, and meanwhile, the bending structure which is bent and extended from the main body to one side of the main body can be inserted into the first groove, so that the voltage inspection terminal can be stably contacted with the bipolar plate, therefore, the voltage inspection terminal is not easy to be separated from the bipolar plate even under the working conditions of the extreme ends such as vibration environment, thermal expansion and cold contraction, and the like, and the phenomenon of instantaneous circuit break is not easy to occur.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view illustrating a manner in which a stack voltage inspector is electrically connected to a bipolar plate of a unit cell in the related art;
fig. 2 is a partial structural schematic diagram of an electrical connection structure of the stack voltage inspection system according to an embodiment of the present invention;
fig. 3 is an overall structural schematic diagram of an electrical connection structure of the stack voltage inspection system according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a voltage inspection terminal of an electrical connection structure of a stack voltage inspection system according to an embodiment of the present invention.
In the figure:
1. a bipolar plate; 11. a first groove; 12. a tongue piece; 13. supporting a lug;
2. a voltage inspection terminal; 21. a main body; 211. perforating; 212. a spring plate; 22. a bending structure;
3. a circuit board; 31. a second groove;
4. an insulating sleeve; 5. a switching connector; 6. pressing a plate; 7. an insulating pad; 8. an air inlet end plate; 9. a blind end plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides an electrical connection structure of a galvanic pile voltage inspection system, which can solve the problems that in the related art, a metal elastic sheet fixedly arranged on a circuit board is in contact with the upper surface of a bipolar plate, the width of the metal elastic sheet is limited, and instantaneous circuit break is easy to occur under extreme working conditions such as a vibration environment, thermal expansion, cold contraction and the like.
Referring to fig. 2 and 4, an electrical connection structure of a stack voltage inspection system according to an embodiment of the present invention may include: the bipolar plate comprises a bipolar plate 1, wherein the bipolar plate 1 can be provided with a first groove 11 penetrating through the plate surface of the bipolar plate 1, in the embodiment, the bipolar plate 1 is a square stainless steel plate, the first groove 11 penetrates through the stainless steel plate, one surface of the bipolar plate 1 can be used as an anode flow guide surface of one membrane electrode, and the other surface of the bipolar plate 1 can be used as a cathode flow guide surface of another adjacent membrane electrode; install in the voltage of bipolar plate 1 one side patrols and examines terminal 2, in this embodiment, the voltage patrols and examines terminal 2 and can adopt the metal sheet stamping forming, and the voltage patrols and examines terminal 2 and can include with the main part 21 of bipolar plate 1 laminating, that is to say, the face of main part 21 with the face laminating of bipolar plate 1, make the voltage patrol and examine terminal 2 with the area of contact of bipolar plate 1 is great, and from main part 21 to the structure 22 of buckling that a lateral bending extends, that is to say, the structure 22 of buckling is connected with main part 21, and the structure 22 of buckling is to one side extension of main part 21, in this embodiment, the structure 22 of buckling roughly extends towards the direction perpendicular with the face of main part 21 and forms, the structure 22 of buckling can insert and locate in first recess 11, make the inner wall of first recess 11 can carry out spacing to the structure 22 of buckling, under the extreme working conditions of a vibration environment, expansion with heat and contraction with cold and the like, the voltage inspection terminal 2 and the bipolar plate 1 are not easy to separate, and continuous electrical contact is ensured; and a circuit board 3, which can be electrically connected with the voltage inspection terminal 2, that is, the voltage inspection terminal 2 is not only electrically connected with the bipolar plate 1, but also electrically connected with the circuit board 3, the voltage inspection terminal 2 realizes the electrical conduction between the bipolar plate 1 and the circuit board 3, and through the circuit board 3 can further realize the electric pile voltage inspection device and the electrical connection of the bipolar plate 1, and further through the electric pile voltage inspection device can monitor the electric pile single-chip voltage in real time.
Referring to fig. 4, in some optional embodiments, the main body 21 may be provided with a through hole 211, in this embodiment, the through hole 211 is preferably square, in other embodiments, the through hole 211 may also be designed as a circular hole or other shapes, and the through hole 211 penetrates through two opposite sides of the main body 21; the bipolar plate 1 may be provided with a tongue 12, wherein the tongue 12 may be formed by stamping, the tongue 12 may be disposed corresponding to the through hole 211, and the tongue 12 may be bent to enter the through hole 211 and contact with the main body 21, in this embodiment, the tongue 12 is bent to enter the through hole 211 and contact with the edge of the through hole 211, in other embodiments, the tongue 12 may also be bent twice and contact with the main body 21, that is, the tongue 12 is bent once and can enter the through hole 211, bent twice and can pass through the through hole 211 and reach the opposite side of the surface where the main body 21 and the bipolar plate 1 are attached, by disposing the tongue 12 on the bipolar plate 1, disposing the through hole 211 on the main body 21, the tongue 12 bent to enter the through hole 211 may further contact with the voltage inspection terminal 2, further, the stability of the electrical connection between the bipolar plate 1 and the voltage inspection terminal 2 is enhanced, in this embodiment, the bipolar plate 1 is provided with two tabs 12 corresponding to the through holes 211, and the two tabs 12 can be respectively bent in opposite directions to contact with the main body 21.
Referring to fig. 4, in some alternative embodiments, the bending structure 22 may pass through the first groove 11 and bend into the through hole 211 to contact the tongue 12, that is, the free end of the bending structure 22 may be bent toward the tongue 12 to contact the tongue 12, so as to further enhance the contact point between the voltage inspection terminal 2 and the bipolar plate 1, and at the same time, there is a first contact point between the tongue 12 and the main body 21, and a second contact point between the tongue 12 and the bending structure 22, and the first contact point and the second contact point may be respectively located on two opposite sides of the tongue 12, so that even if the tongue 12 has a tendency to bounce after bending, the contact tightness of the tongue 12 with the bending mechanism on the other side can be enhanced after bouncing; in this embodiment, the bipolar plate 1 may have an opening corresponding to the tongue 12, the bent structure 22 may pass through the opening to contact the tongue 12, and two bent structures 22 may also be correspondingly disposed, where the two bent structures 22 respectively contact the two tongues 12.
Referring to fig. 4, in some alternative embodiments, one side of the bipolar plate 1 may be provided with a support lug 13, in this embodiment, the support lug 13 is provided at the edge of the bipolar plate 1, the first groove 11 may be provided at the support lug 13, and the connection between the bipolar plate 1 and the voltage inspection terminal 2 is facilitated by providing a protruding support lug 13; main part 21 can with the laminating of journal stirrup 13, that is to say, main part 21 the face with the laminating of the face of journal stirrup 13, just main part 21 with insulating cover 4 can be established to the outer cover of journal stirrup 13, through setting up insulating cover 4 will main part 21 with the parcel is got up in the 13 outside of journal stirrup, it is right when terminal 2 plays the protection is patrolled and examined to voltage, also can further right terminal 2 is patrolled and examined to voltage is stricken, prevents terminal 2 is patrolled and examined to voltage with the separation of journal stirrup 13 to, insulating cover 4 of setting still mainly plays and realizes adjacent two the voltage is patrolled and examined the electrical insulation between the terminal 2.
Referring to fig. 2 and 4, in some alternative embodiments, the circuit board 3 is provided with a second groove 31, in this embodiment, the second groove 31 penetrates the circuit board 3 from top to bottom, in other embodiments, the second groove 31 may also be a blind hole whose top does not penetrate the circuit board 3, wherein, because a plurality of unit cells exist in a stack and a plurality of bipolar plates 1 exist at the same time, a plurality of second grooves 31 may be provided on the circuit board 3 corresponding to a plurality of bipolar plates 1, a plurality of second grooves 31 may be arranged in a row along the edge of the circuit board 3, an inner wall of the second groove 31 may be provided with a conductive layer, that is, the conductive layer may be a copper layer and may be electrically connected to a printed circuit in the circuit board 3, the main body 21 can be inserted into the second groove 31 to contact with the conductive layer, the second groove 31 is arranged on the circuit board 3, the main body 21 is inserted into the second groove 31, so that the inner wall of the second groove 31 can limit the main body 21, the relative displacement between the voltage inspection terminal 2 and the circuit board 3 is not too large under the extreme working conditions of vibration environment, thermal expansion, cold contraction and the like, the mutual separation between the voltage inspection terminal 2 and the circuit board 3 is avoided, meanwhile, the circuit board 3 has certain thickness, the second groove 31 can have certain depth, even if the circuit board 3 and the voltage inspection terminal 2 have certain relative displacement in the direction of mutual separation, the voltage inspection terminal 2 and the conductive layer can be ensured to realize electrical conduction, the problem that the circuit board 3 is in poor contact with the voltage inspection terminal 2 due to warping deformation is effectively avoided, and meanwhile, due to the fact that the two adjacent second grooves 31 are arranged at intervals, the main body 21 is inserted into the second grooves 31, and the risk that the two adjacent voltage inspection terminals 2 are close to touch can also be avoided; moreover, as the voltage inspection terminal 2 is matched with the circuit board 3 through the second groove 31, namely a via hole matching mode is adopted, when the circuit board 3 is assembled on the voltage inspection terminal 2, the assembly and the positioning of the circuit board 3 are simpler; the gap and quantity requirements of bipolar plates 1 of different stacks can be met by adjusting the distance and quantity between two adjacent second grooves 31 on the circuit board 3, and the adaptive adjustment cost of the stacks with different specifications is reduced.
Referring to fig. 2 and 4, in some optional embodiments, at least one side of the main body 21 may be provided with an elastic sheet 212, and the elastic sheet 212 may be abutted against the conductive layer, that is, one end of the elastic sheet 212 may be connected to the main body 21, and the elastic sheet 212 may extend obliquely from a connection position with the main body 21 toward a direction away from the main body 21, so that the elastic sheet 212 may be in elastic contact with the conductive layer, in this embodiment, the elastic sheet 212 is provided on both opposite sides of the main body 21, and the elastic sheet 212 is preferably formed by tearing from the main body 21, so that a plate on the main body 21 is fully utilized, an effective contact area between the elastic sheet 212 and the conductive layer is increased as much as possible, and reliability of electrical connection is improved, and because the formed elastic sheet 212 has certain elasticity, the elastic sheet 212 and the conductive layer may be tightly attached to each other through interference fit, the good contact of the voltage inspection terminal 2 with the conductive layer is ensured.
Referring to fig. 2, in some alternative embodiments, the circuit board 3 may be provided with a switch connector 5, the switch connector 5 may be electrically connected to the stack voltage tester through a test harness, that is, the stack voltage tester is not directly connected to the voltage test terminal 2, but is electrically connected to the voltage test terminal 2 through the circuit board 3, the circuit board 3 corresponds to a switch circuit board 3, one end of a printed circuit in the circuit board 3 may be electrically connected to the voltage test terminal 2, so that the bipolar plate 1 voltage signal may be introduced into the circuit board 3 through the voltage test terminal 2, the other end of the printed circuit in the circuit board 3 may be electrically connected to a corresponding pin of the switch connector 5, so that the bipolar plate 1 voltage signal may be further introduced into the stack voltage tester through the switch connector 5 and the test harness, and finally, the bipolar plate 1 is electrically connected with the stack voltage polling device.
Referring to fig. 2, in some alternative embodiments, the stack voltage inspector may include the circuit board 3, that is, the circuit board 3 is a bare circuit board 3 carried by the stack voltage inspector, that is, the stack voltage inspector may not be provided with a housing, the second groove 31 is directly formed on the circuit board 3 of the stack voltage inspector, the voltage inspection terminal 2 and the stack voltage inspector can be directly inserted into each other, so as to electrically connect the stack voltage inspector and the bipolar plate 1, and an insulating layer may be fixedly arranged on an outer surface of the circuit board 3, specifically, in this embodiment, a conformal coating may be sprayed on an outer surface of the circuit board 3 except for an inner wall surface of the second groove 31, so as to achieve electrical insulation performance, in other embodiments, the insulating layer may also be rubber or other substance with insulating performance, in this embodiment, owing to will the electric pile voltage patrols and examines the ware directly with terminal 2 contacts are patrolled and examined to voltage, need not be in the electric pile voltage patrols and examines the ware with voltage is patrolled and examined and is set up parts such as adapter circuit board 3, adapter connector 5, adapter pencil between the terminal 2, has saved cost and weight, and in addition, the circuit board 3 of this embodiment is naked state, the electric pile voltage patrols and examines the ware and can not set up the shell, further the cost is reduced, has alleviateed weight, avoids causing the material cost extravagant for whole electrical connection structure's weight reaches the optimum.
Referring to fig. 2 and 3, in some optional embodiments, the electrical connection structure may further include a pressing plate 6 pressed on the surface of the circuit board 3, in this embodiment, the pressing plate 6 is preferably made of a metal material, the pressing plate 6 is disposed above the circuit board 3, the voltage inspection terminal 2 and the bipolar plate 1 are located below the circuit board 3, an insulating pad 7 is interposed between the pressing plate 6 and the circuit board 3, specifically, the insulating pad 7 may be adhered to a lower surface of the pressing plate 6, so that the insulating pad 7 is fixed to the pressing plate 6, and opposite sides of the insulating pad 7 are respectively adhered to a lower surface of the pressing plate 6 and an upper surface of the circuit board 3, in this embodiment, the insulating pad 7 is preferably a rubber pad, in other embodiments, the insulating pad 7 may also be selected from other substances with insulating properties, in this embodiment, the insulating pad 7 can optimize the electrical insulation between the pressing plate 6 and the circuit board 3, and prevent the pressing plate 6 from being in hard contact with the circuit board 3, which may result in a decrease in the fastening force of the circuit board 3.
Referring to fig. 3, further, an air inlet end plate 8 and a blind end plate 9 may be respectively fixedly disposed on opposite sides of the bipolar plate 1, the pressure plate 6 may be connected to the air inlet end plate 8 by bolts, and the pressure plate 6 may be connected to the blind end plate 9 by bolts, specifically, the pressure plate 6 is disposed above the air inlet end plate 8 and the blind end plate 9, a first bolt hole is formed in an upper portion of the air inlet end plate 8, a second bolt hole is formed in an upper portion of the blind end plate 9, a third bolt hole is formed in one end of the pressure plate 6 corresponding to the first bolt hole, a fourth bolt hole is formed in the other end of the pressure plate 6 corresponding to the second bolt hole, and the pressure plate 6 and the air inlet end plate 8 are fixed by passing through the third bolt hole and the first bolt hole from above the pressure plate 6 by a first bolt, the press plate 6 and the blind end plate 9 are fixed by passing second bolts through the fourth bolt holes and the second bolt holes from the upper part of the press plate 6, and finally the circuit board 3 is fastened; simultaneously, owing to adopt clamp plate 6 is right circuit board 3 is fixed for a pile voltage patrols and examines the passageway and can be by a plurality of circuit board 3 combination is accomplished, has effectively avoided the stack influence of tolerance.
Referring to fig. 2 and 4, in the present embodiment, the assembly process of the electrical connection structure generally includes: firstly, the bending structure 22 of the voltage inspection terminal 2 is correspondingly inserted into the first groove 11, the main body 21 is attached to the support lug 13, then the bending structure 22 and the tongue piece 12 are pressed into the through hole 211 together, so that the tongue piece 12 is in press-folding fit with the through hole 211, the bending structure 22 and the tongue piece 12 are in press-folding fit, good electrical fit of the bipolar plate 1 and the voltage inspection terminal 2 is realized, then an insulating sleeve 4 can be sleeved on the pressure-welded voltage inspection terminal 2 and the support lug 13, then the circuit board 3 can be installed on the voltage inspection terminal 2, the upper portion of the main body 21 is inserted into the second groove 31 to be in contact with the conducting layer in the second groove 31, the elastic sheet 212 on the main body 21 is in interference fit with the conducting layer, and finally the pressing plate 6 can be pressed above the circuit board 3, and are respectively fixed with the air inlet end plate 8 and the blind end plate 9 through bolts, in the whole assembly process of the electrical connection structure, all parts are simply positioned, the assembly process is optimized, the labor hour is shortened, and the controllability of the process is improved.
The principle of the electrical connection structure of the electric pile voltage inspection system provided by the embodiment of the invention is as follows:
owing to seted up first recess 11 on bipolar plate 1, voltage patrol and examine terminal 2 and install after on bipolar plate 1, the main part 21 of terminal 2 is patrolled and examined to voltage can laminate with bipolar plate 1, has increased terminal 2 is patrolled and examined to voltage with area of contact between bipolar plate 1, simultaneously, from main part 21 to the structure of buckling 22 of its lateral buckling extension can insert first recess 11, further increase terminal 2 is patrolled and examined to voltage with contact point between bipolar plate 1, simultaneously, the inner wall of second recess 31 can be right structure of buckling 22 limits for terminal 2 is patrolled and examined to voltage with can contact firm contact with bipolar plate 1, consequently, even under extreme operating mode such as vibration environment, expend with heat and cold, terminal 2 is patrolled and examined to voltage also be difficult for breaking away from with bipolar plate 1, the phenomenon of instantaneous open circuit is difficult for appearing.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides an electric connection structure of galvanic pile voltage system of patrolling and examining, its characterized in that, it includes:
the bipolar plate (1), the said bipolar plate (1) has the first groove (11) which runs through its face;
the voltage inspection terminal (2) is arranged on one side of the bipolar plate (1) and comprises a main body (21) attached to the bipolar plate (1) and a bending structure (22) bent and extended from the main body (21) to one side, and the bending structure (22) is inserted into the first groove (11);
and the circuit board (3) is electrically connected with the voltage inspection terminal (2).
2. The electrical connection structure of the stack voltage inspection system according to claim 1, wherein: the main body (21) is provided with a through hole (211);
the bipolar plate (1) is provided with a tongue (12), the tongue (12) being bent into the through-hole (211) and being in contact with the body (21).
3. The electrical connection structure of the stack voltage inspection system according to claim 2, wherein: the bending structure (22) penetrates through the first groove (11) and is bent into the through hole (211) to be in contact with the tongue piece (12).
4. The electrical connection structure of the stack voltage inspection system according to claim 1, wherein:
one side of the bipolar plate (1) is provided with a support lug (13), and the first groove (11) is arranged on the support lug (13);
the main part (21) with journal stirrup (13) laminating, just main part (21) with journal stirrup (13) overcoat establishes insulating cover (4).
5. The electrical connection structure of the stack voltage inspection system according to claim 1, wherein:
the circuit board (3) is provided with a second groove (31), a conducting layer is laid on the inner wall of the second groove (31), and the main body (21) is inserted into the second groove (31) and is in contact with the conducting layer.
6. The electrical connection structure of the stack voltage inspection system according to claim 5, wherein: at least one side of the main body (21) is provided with an elastic sheet (212), and the elastic sheet (212) is abutted against the conductive layer.
7. The electrical connection structure of the stack voltage inspection system according to claim 1, wherein:
the circuit board (3) is provided with a switching connector (5), and the switching connector (5) is electrically connected with the electric pile voltage polling device through a polling wiring harness.
8. The electrical connection structure of the stack voltage inspection system according to claim 1, wherein:
the electric pile voltage polling device comprises the circuit board (3), and an insulating layer is fixedly arranged on the outer surface of the circuit board (3).
9. The electrical connection structure of the stack voltage inspection system according to claim 1, wherein:
the electric connection structure further comprises a pressing plate (6) arranged on the surface of the circuit board (3) in a pressing mode, and an insulating pad (7) is clamped between the pressing plate (6) and the circuit board (3).
10. The electrical connection structure of the stack voltage inspection system according to claim 9, wherein:
the double-pole plate is characterized in that the two opposite sides of the double-pole plate (1) are fixedly provided with an air inlet end plate (8) and a blind end plate (9) respectively, and the pressing plate (6) is connected with the air inlet end plate (8) through bolts and connected with the blind end plate (9) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921881A (en) * | 2021-12-16 | 2022-01-11 | 北京新研创能科技有限公司 | Stack housing structure and fuel cell module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938470A (en) * | 2012-11-05 | 2013-02-20 | 新源动力股份有限公司 | Connecting method of inspecting lines of metal bipolar plate fuel cell stack |
| US20150070021A1 (en) * | 2013-09-06 | 2015-03-12 | Johnson Controls Technology Company | Battery module printed circuit board assembly system and method |
| CN109449462A (en) * | 2018-10-08 | 2019-03-08 | 上海治臻新能源装备有限公司 | A kind of self-assembled structures of fuel battery voltage inspection |
| CN111682246A (en) * | 2020-06-17 | 2020-09-18 | 北京新研创能科技有限公司 | Connection structure of bipolar plate and inspection system and inspection socket structure of bipolar plate |
| CN112615034A (en) * | 2021-03-05 | 2021-04-06 | 爱德曼氢能源装备有限公司 | Assembling equipment of fuel cell metal bipolar plate insertion type inspection structure |
-
2021
- 2021-05-14 CN CN202110529327.8A patent/CN113296002B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938470A (en) * | 2012-11-05 | 2013-02-20 | 新源动力股份有限公司 | Connecting method of inspecting lines of metal bipolar plate fuel cell stack |
| US20150070021A1 (en) * | 2013-09-06 | 2015-03-12 | Johnson Controls Technology Company | Battery module printed circuit board assembly system and method |
| CN109449462A (en) * | 2018-10-08 | 2019-03-08 | 上海治臻新能源装备有限公司 | A kind of self-assembled structures of fuel battery voltage inspection |
| CN111682246A (en) * | 2020-06-17 | 2020-09-18 | 北京新研创能科技有限公司 | Connection structure of bipolar plate and inspection system and inspection socket structure of bipolar plate |
| CN112615034A (en) * | 2021-03-05 | 2021-04-06 | 爱德曼氢能源装备有限公司 | Assembling equipment of fuel cell metal bipolar plate insertion type inspection structure |
Non-Patent Citations (1)
| Title |
|---|
| 林言端 等: "WJX-1型微机控制干电池检测系统", 《电池》, 31 August 1992 (1992-08-31), pages 156 - 159 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921881A (en) * | 2021-12-16 | 2022-01-11 | 北京新研创能科技有限公司 | Stack housing structure and fuel cell module |
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