Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the above and/or problems occurring in the conventional parallel connection of solar cell simulators.
It is therefore an object of the present invention to provide a parallel connection wire arrangement of power supply terminals which is capable of effectively, quickly and easily connecting all the positive/negative poles of the output of the power supply together.
In order to solve the technical problems, the invention provides the following technical scheme: the parallel connection wire device of the power terminal comprises a deformation module, a connecting wire and a connecting wire, wherein the deformation module comprises a fixing plate and an elastic piece fixed on one side surface of the fixing plate; the edge of the fixing plate is provided with a concave hole, a pressing piece is inserted into the hole, the pressing piece comprises a connecting section positioned at one end and an operating section positioned at the other end, and the end head of the connecting section is inserted into the hole and fixedly connected with the inner end face of the hole through a stretching piece.
As a preferred embodiment of the parallel connection device of the power terminal according to the present invention, wherein: the connecting section has the extrusion section with the centre of operation section, and the connecting section receives the pulling force of tensile piece to make the extrusion section press in the outer port of hole.
As a preferred embodiment of the parallel connection device of the power terminal according to the present invention, wherein: the edge of the fixing plate is provided with at least two holes, and each hole is correspondingly inserted with a pressing piece.
As a preferred embodiment of the parallel connection device of the power terminal according to the present invention, wherein: the device also comprises an extrusion module; the two side surfaces of the fixed plate are a first surface and a second surface respectively, at least two elastic pieces are uniformly distributed on the first surface, the tail ends of the elastic pieces are provided with stress blocks, and the stress blocks are provided with sloping surfaces which face inwards; the extrusion module comprises a first end and a second end, and the second end is connected with the locking module; the locking module can push the extrusion module to enable the first end of the extrusion module to extrude the slope surface, and each elastic piece is outwards spread.
As a preferred embodiment of the parallel connection device of the power terminal according to the present invention, wherein: the extrusion module is wrapped in the middle by each elastic piece and a stress block at the tail end of the elastic piece, and the second end of the extrusion module is provided with a concave opening; the locking module comprises a push rod with one end penetrating through the fixed plate and inserted into the opening and a rotating head fixed at the other end of the push rod, and the fixed plate is provided with a through hole matched with the outer diameter of the push rod.
As a preferred embodiment of the parallel connection device of the power terminal according to the present invention, wherein: the outer side wall of the pushing rod is fixedly provided with a first limiting protrusion, the first surface is fixedly provided with an arc protrusion, the arc protrusion is inserted into the opening, and the circle center of the arc is positioned on the axis of the pushing rod; when the pushing rod is pushed and rotated, the first limiting protrusion can be placed on the outer end face of the arc-shaped protrusion.
As a preferred embodiment of the parallel connection device of the power terminal according to the present invention, wherein: the second surface is provided with a fan-shaped mark corresponding to the outline and the angle of the arc-shaped bulge; the outer surface of the rotating head is provided with a specific strip-shaped bulge, and the strip-shaped bulge corresponds to the position of the first limiting bulge.
As a preferred embodiment of the parallel connection device of the power terminal according to the present invention, wherein: the opening comprises a first section and a second section which are mutually connected and communicated, and the cross sections of the first section and the second section are circular; the inner diameter of the first section is larger than that of the second section, an extrusion head is fixed at one end of the push rod inserted into the opening, and the extrusion head is limited in the first section and can rotate axially opposite to the first section.
As a preferred embodiment of the parallel connection device of the power terminal according to the present invention, wherein: the outer side wall of the extrusion module is provided with a second limiting protrusion matched with the strip-shaped interval, and the second limiting protrusion can slide relatively at the strip-shaped interval.
As a preferred embodiment of the parallel connection device of the power terminal according to the present invention, wherein: the periphery of the extrusion module is sleeved with a rebound module, one end of the rebound module is propped against the inner side surface of the stress block, and the other end of the rebound module is propped against the second limiting protrusion; at least two second limiting protrusions are uniformly distributed on the outer side wall of the extrusion module.
The invention has the beneficial effects that: the invention can quickly, effectively and conveniently connect the positive poles and the negative poles of the power supplies of the two groups of solar cell simulators through the wiring monomers, does not need complicated operation, is convenient, time-saving and labor-saving, and reduces the operation requirement.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The solar cell simulator is a direct-current programmable power supply and is suitable for testing systems in the industries of aerospace, national defense, consumer electronics, computers, peripherals, communication, semiconductors, solar energy, automobile electronics and the like. In practice, it often happens that the voltage or current of a single power supply cannot meet the requirements, so that the greater voltage and current requirements can be met by 2 series or up to 5 parallel connection modes.
In the parallel wiring process of a plurality of solar cell simulators, the output positive poles of all the power supplies are required to be connected together and connected to a load, and the output negative poles of all the power supplies are required to be connected together and connected to the load, and the wiring is also required to be checked in the process, so that no short circuit exists between the positive pole and the negative pole.
Referring to fig. 1 to 8, in one embodiment of the present invention, a parallel connection device for power supply terminals is provided, which can effectively, quickly and conveniently connect the positive/negative poles of all the power supplies together.
The parallel connection device of the power terminal comprises a deformation module 100, which comprises a fixing plate 101 and an elastic piece 102 fixed on one side surface of the fixing plate 101.
In the invention, the positive electrode of the power output of the solar cell simulator is a positive electrode binding post 701, the negative electrode of the power output is a negative electrode binding post 702, and the positive electrode binding post 701 and the negative electrode binding post 702 have the same structure and are all provided with connecting holes for connecting with the deformation module 100. In the present invention, the elastic member 102 can be directly inserted into the connection hole 704 of the binding posts 701, 702 to form a fixed connection, and the fixing plate 101 is used to establish a line connection between the positive/negative poles of each parallel power source (connection between the fixing plates 101 corresponding to the two positive/negative poles in pre-parallel is through a wire).
Specifically, the edge of the fixing plate 101 has a concave hole 101a, the inner end of the hole 101a is blocked, and the outer port is opened. The hole 101a is inserted with a pressing member 103, and the pressing member 103 is used for conveniently fixing and detaching the accessed wire. The pressing member 103 includes a connection section 103a at one end and an operation section 103b at the other end, and the connection section 103a is rod-shaped to fit the inner diameter of the hole 101a, and is made of conductive metal. The operation section 103b is used for manually pulling out and operating the pressing member 103, and the operation section 103b may be made of a non-conductive material such as plastic. The end of the connecting section 103a is inserted into the hole 101a and fixedly connected with the inner end surface of the hole 101a through the stretching piece 104. The tension member 104 is a tension spring, one end of which is fixed to the end of the connecting section 103a, and the other end of which is fixed to the inner end surface of the hole 101a, and is capable of generating a tensile force to the pressing member 103, and has a tendency to be pulled into the hole 101 a.
The connecting section 103a and the operating section 103b have a pressing section 103c in the middle, and the pressing section 103c has a sheet-like structure. The connection section 103a receives the tensile force of the tensile member 104 and causes the pressing section 103c to press against the outer port of the hole 101 a.
Further, the edge of the fixing plate 101 has at least two holes 101a, and each hole 101a is inserted with a pressing member 103. One of the push-pieces 103 is used for connection between the solar cell simulator and a load, and the other push-piece 103 may be used for connection between the solar cell simulator and a corresponding power terminal of an adjacent one of the solar cell simulators. Specifically, the wire end of the wire connected between the two pressing members 103 may be directly wound around the connection section 103a, and then the operation section 103b is released, so that the pressing section 103c may press the wire against the outer end of the hole 101a due to the tension of the stretching member 104, thereby forming a fixation.
When a certain solar cell simulator is connected with a load, a wire is also connected between one of the pressing pieces 103 on the fixing plate 101 and the load, one end of the wire is wound on the connecting section 103a of the corresponding pressing piece 103, then the connecting section 103a is pulled into the hole 101a, so that a conductive path is formed between the wire and the pressing piece 103 and between the wire and the deformation module 100, and the other end of the wire is connected with the load. Thus, current from the power terminal post enters the deformation module 100 first, then enters the wire through the pressing piece 103, and finally is introduced into the load.
In the present invention, the parallel connection wire device of the power terminal further includes a pressing module 200 and a locking module 300. It should be noted that: the present invention refers to a structure assembled by the deformation module 100, the pressing module 200, and the locking module 300 as a wiring unit 703.
The deformation module 100 includes a fixing plate 101 and an elastic member 102. The fixing plate 101 is made of a solid metal (preferably copper, aluminum) capable of conducting electricity, and is a plate-like structure. The two side surfaces of the fixing plate 101 are a first surface a and a second surface B, at least two elastic members 102 are uniformly distributed on the first surface a, and specifically, the elastic members 102 may have a plurality of elastic members at the same time and are uniformly distributed on one circumference of the first surface a. The elastic members 102 are strips with transverse cambered surfaces, and can be seen as a sleeve structure divided equally into a plurality of strips at intervals, and the "intervals" between adjacent elastic members 102 are strip-shaped intervals 108. In the present invention, the elastic member 102 has a certain lateral elastic deformation capability, which is capable of being bent when subjected to a lateral force, and is capable of being restored to its original shape after the external force is removed. Preferably, the elastic member 102 is made of a conductive metal having toughness.
The end of the elastic member 102 has a block-shaped stress block 105, the stress block 105 has a slope 105a, and the slope 105a faces inward (toward the accommodating space M surrounded by each elastic member 102 and the stress block 105). Therefore, according to the point of action of the force and the force component acting on the point of action, when the slope 105a of the force-receiving block 105 is laterally pressed by other structures, each elastic member 102 can be spread, and the caliber is enlarged.
The outer surface of the extrusion module 200 may be cylindrical, and is covered in the middle accommodating space M by each elastic member 102 and the stress block 105 at the end thereof. The two ends of the extrusion module 200 are a first end 201 and a second end 202, respectively, the second end 202 is connected with the locking module 300, and the first end 201 is in contact with the slope 105a, so that the extrusion module 200 can be pushed by the locking module 300, so that the first end 201 extrudes the slope 105a and the elastic members 102 are outwards spread. Both the compression module 200 and the locking module 300 are made of a hard non-metallic material and are not electrically conductive.
Further, the second end 202 of the compression module 200 has a concave opening 202a. The locking module 300 includes a push rod 301 and a rotating head 302, wherein one end of the push rod 301 passes through the fixed plate 101 and is inserted into the opening 202a and abuts against the inner end surface of the opening 202a, the rotating head 302 is fixed to the other end of the push rod 301, and the rotating head 302 is located on the second surface B side of the fixed plate 101. It should be noted that: the fixed plate 101 has a through hole 101b fitted to the outer diameter of the push rod 301, and the push rod 301 passes through the through hole 101b and is capable of relative sliding and relative rotation.
In the present invention, the locking module 300 can maintain a stable and locked state after the elastic member 102 is opened by the pressing module 200, and the specific scheme is as follows:
the outer side wall of the pushing rod 301 is fixed with a first limit protrusion 301a (the first limit protrusion 301a is of a protrusion structure and is provided with two limit protrusions which are distributed on the outer side wall of the pushing rod 301 in a central symmetry manner); correspondingly, the first surface A is fixed with an arc-shaped bulge 106, the arc-shaped bulge 106 is of a bulge structure with an arc-shaped track, and the arc length is preferably 1/4 arc. The arc-shaped protrusion 106 is inserted into the opening 202a, and the center of the arc thereof is located on the axis of the push rod 301. In the present invention, two arc-shaped protrusions 106 are distributed on the first surface a, which are symmetrical in center. The invention sets that when the first limit protrusion 301a is located in the interval between two adjacent arc protrusions 106, the first end 201 of the extrusion module 200 contacts the slope 105a, and extrusion is not generated; when the push rod 301 is pushed and rotated, the first limit protrusion 301a can rest on the outer end surface of the arc-shaped protrusion 106, and the first end 201 of the pressing module 200 can prop open the respective elastic members 102.
The invention sets that: the outer diameter of the elastic member 102 enclosed by the whole body is slightly smaller than the inner diameter of the connecting hole of the terminal post when not pressed, and the elastic member 102 can be ensured to be fully inserted into the connecting hole. When the elastic member 102 is pressed and spread, the elastic member can be tightly matched with the connecting hole, so as to form firm and compact fixed connection.
In order to facilitate the visual operation of the locking module 300 by the constructor and to facilitate the determination and control of the locking state of the locking module 300 to the extrusion module 200, the present invention has the following technical scheme:
the second surface B has a sector-shaped marking 107 corresponding to the contour and angle of the arcuate projection 106, i.e. both have the same angular extent and position in the transverse projection. Meanwhile, the outer surface of the rotating head 302 is provided with a specific strip-shaped protrusion 302a, the strip-shaped protrusion 302a corresponds to the position of the first limit protrusion 301a in the transverse projection, and preferably, the middle of the strip-shaped protrusion 302a is protruded, so that the outer side surface of the strip-shaped protrusion forms a convex curved surface, and the rotating head 302 is convenient to operate and rotate.
It is apparent that in the initial natural state, the first limit protrusion 301a is located in the space between the adjacent two arc-shaped protrusions 106 and contacts the first face a, while the first end 201 of the pressing module 200 contacts the slope 105a, and no pressing occurs. If the rotary head 302 is pushed, the first limiting protrusion 301a is separated from the lateral constraint of the arc-shaped protrusion 106, and then the rotary head 302 is rotated (because there is no constraint of lateral rotation between the push rod 301 and the extrusion module 200, relative rotation can occur), the first limiting protrusion 301a can rest on the outer end surface of the arc-shaped protrusion 106, that is, the two have overlapping portions in the lateral projection.
Further, the opening 202a includes a first section 202a-1 and a second section 202a-2 that are joined and communicate with each other, both of which are circular in cross-section. Wherein the inner diameter of the first section 202a-1 is larger than that of the second section 202a-2, and a squeezing head 301b is fixed at the end of the pushing rod 301 inserted into the opening 202a, and the squeezing head 301b is a flat column structure matched with the structure of the first section 202a-1, is limited in the first section 202a-1, and can rotate axially opposite to the first section.
The second limiting protrusions 203 matched with the strip-shaped spaces 108 are fixed on the outer side wall of the extrusion module 200, and the second limiting protrusions 203 can be multiple and uniformly distributed on the outer side wall of the extrusion module 200. Each second limiting protrusion 203 is embedded into the corresponding bar-shaped interval 108, and can slide relatively in the bar-shaped interval 108, so that the extrusion module 200 is ensured not to rotate.
Further, the periphery of the extrusion module 200 is sleeved with the rebound module 400, and the rebound module 400 adopts a compression spring, one end of the compression spring abuts against the inner side surface of the stress block 105, and the other end abuts against the second limiting protrusion 203, so that the extrusion module 200 can be attached to the first surface A in an initial state and does not move. Therefore, the second limiting protrusion 203 has the function of not only ensuring the straight sliding of the compression module 200, but also transmitting the pressure of the rebound module 400. The rebound module 400 also facilitates resetting of the compression module 200, the lock module 300 when the wiring block 703 is removed from the posts 701, 702.
It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.