CN108692756A - A kind of wireless charging device test bracket - Google Patents

Abstract

The invention discloses a test stand for a wireless charging device, which includes a vertical movement mechanism for installing a receiving coil and driving its vertical movement, a horizontal movement mechanism for installing a transmitting coil and driving its horizontal movement, and a vertical movement mechanism for installing the vertical movement. Support mechanism for kinematics and horizontal kinematics. During the test, the distance between the receiving coil and the transmitting coil can be changed by operating the vertical movement mechanism, and the relative offset between the receiving coil and the transmitting coil can also be changed by operating the horizontal movement mechanism. , can successfully complete the charging coil test of the wireless charging pile device, and because the manual moving operation of the receiving coil and the transmitting coil is abandoned, it is realized by the mechanical movement of the vertical movement mechanism and the horizontal movement mechanism, so the receiving coil and the transmitting coil The motion adjustment of the coil has greater precision and accuracy, and at the same time improves the test accuracy and the reliability of test results.

Description

A wireless charging device test stand

technical field

The invention relates to the technical field of wireless charging, in particular to a test stand for a wireless charging device.

Background technique

With the development of power electronics technology in China, more and more electronic devices have been widely used.

In the field of automobile manufacturing industry, the research and development of new energy vehicles has achieved results, and new energy vehicles such as pure electric vehicles and hybrid vehicles have appeared. Taking an electric vehicle as an example, an electric vehicle refers to a vehicle driven by a vehicle-mounted power supply and driven by a motor. It is equivalent to the engine of an internal combustion engine vehicle, and its importance is self-evident. The capacity of the battery is limited, and when the power is reduced to a certain level, it needs to be charged in time.

At present, wireless charging technology is widely used in electric vehicles. Generally, there is a transmitting coil on the wireless charging device for emitting magnetic field energy. It is usually placed on the ground of the parking space, and it is usually installed under the chassis of the electric vehicle. There are receiving coils for receiving magnetic field energy. Before the transmitting coil and receiving coil are officially used for electric vehicle charging, the charging coil of the wireless charging pile device needs to be tested first, so as to detect problems in advance and rectify them. The test content of the charging coil is mainly the change of the relative positional relationship between the transmitting coil and the receiving coil. By moving the transmitting coil or the receiving coil, the magnetic field between the two can be tested to determine the best relative positional relationship between the ray coil and the receiving coil. .

In the prior art, the charging coil test of the traditional wireless charging pile device, during the test, the adjustment of the relative offset between the transmitting coil and the receiving coil, the adjustment of the distance between the two coils, the overall displacement of the two coils, etc. The change of relative positional relationship is done manually. Since the transmitting coil and receiving coil occupy a large area and are heavy, the operation is complicated and cumbersome, and the adjustment accuracy is difficult to guarantee. The reference value of the test results is not high.

Therefore, how to successfully complete the charging coil test of the wireless charging pile device, and improve the test accuracy and reliability of test results is a technical problem to be solved urgently by those skilled in the art.

Contents of the invention

The purpose of the present invention is to provide a wireless charging device test bracket, which can successfully complete the charging coil test of the wireless charging pile device, and improve the test accuracy and test result reliability.

In order to solve the above technical problems, the present invention provides a wireless charging device test stand, including a vertical movement mechanism for installing the receiving coil and driving its vertical movement, a horizontal movement mechanism for installing the transmitting coil and driving its horizontal movement, and A support mechanism for installing the vertical movement mechanism and the horizontal movement mechanism.

Preferably, the support mechanism includes opposite side beams, a plurality of lower suspension beams connected between the bottom ends of the side beams on both sides, and a plurality of upper suspension beams connected between the top ends of the side beams on both sides ; The vertical movement mechanism is fixed on the upper suspension beam, and the horizontal movement mechanism is fixed on the lower suspension beam.

Preferably, the support mechanism further includes an auxiliary beam connected between the side beam and the lower suspension beam for improving structural strength.

Preferably, the bottom of the lower hanging beam is provided with universal wheels for horizontal walking.

Preferably, the vertical motion mechanism includes a self-locking slide table, a first installation platform and a first lead screw arranged on the self-locking slide table; several slide rails are vertically arranged on the self-locking slide table , one end of the first mounting table is fixed on the upper suspension beam, and the other end is sleeved on the slide rail; the first mounting table is vertically provided with a threaded hole, and the first lead screw runs through the The first installation platform is matched with the threaded hole, and the end of the first lead screw is connected with the receiving coil.

Preferably, a truss connected to the end of the first lead screw is further included, and several claws for clamping the receiving coil are arranged on the truss.

Preferably, each of the claws is evenly distributed on the truss, and each of the claws can be slidably arranged on the truss; each of the claws is made of insulating material.

Preferably, the horizontal movement mechanism includes a horizontal sliding table arranged on the lower suspension beam and a longitudinal sliding table slidably arranged on the horizontal sliding table; And the second lead screw used to drive the sliding of the longitudinal slide, the second installation platform is slidably arranged on the longitudinal slide, and distributed along its length direction and used to drive the second installation platform to slide The third lead screw; the transmitting coil is arranged on the second installation platform.

Preferably, it also includes a crank handle arranged at one end of the first lead screw, the second lead screw and the third lead screw for manual rotation.

Preferably, an insulating plate is arranged between the second installation platform and the transmitting coil.

The wireless charging device test stand provided by the present invention mainly includes a vertical movement mechanism, a horizontal movement mechanism and a support mechanism. Among them, both the vertical movement mechanism and the horizontal movement mechanism are set on the support mechanism, and the vertical movement mechanism is mainly used to install the receiving coil, and at the same time drive it to perform vertical movement, such as vertical lifting, while the horizontal movement mechanism is mainly used to install the transmitting coil , while driving it to perform horizontal motion, such as sliding in the horizontal plane. In this way, the wireless charging device test stand provided by the present invention can change the distance between the receiving coil and the transmitting coil by operating the vertical movement mechanism when testing, and can also change the distance between the receiving coil and the transmitting coil by operating the horizontal movement mechanism. The relative offset of the transmitting coil, so through the joint action of the vertical movement mechanism and the horizontal movement mechanism, the charging coil test of the wireless charging pile device can be successfully completed. It is realized by the mechanical movement of the vertical movement mechanism and the horizontal movement mechanism, so the movement adjustment of the receiving coil and the transmitting coil has greater precision and accuracy, and at the same time improves the test accuracy and the reliability of test results.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a schematic diagram of the overall structure of a specific embodiment provided by the present invention;

Fig. 2 is a specific structural schematic diagram of a support mechanism in a specific embodiment provided by the present invention;

Fig. 3 is a specific structural schematic diagram of a vertical motion mechanism in a specific embodiment provided by the present invention;

Fig. 4 is a specific structural schematic diagram of a horizontal movement mechanism in a specific embodiment provided by the present invention.

Wherein, among Fig. 1-Fig. 4:

Side beam—1, lower hanging beam—2, upper hanging beam—3, auxiliary beam—4, universal wheel—5, self-locking slide table—6, slide rail—601, first installation table—7, first lead screw— 8. Truss—9, Claws—10, Horizontal Slide—11, Vertical Slide—12, Second Lead Screw—13, Second Mounting Platform—14, Third Lead Screw—15, Rocking Handle—16, Insulation Plate — 17, Auxiliary rail — 18.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to FIG. 1 , which is a schematic diagram of the overall structure of a specific embodiment provided by the present invention.

In a specific embodiment provided by the present invention, the wireless charging device test stand mainly includes a vertical movement mechanism, a horizontal movement mechanism and a support mechanism.

Among them, both the vertical movement mechanism and the horizontal movement mechanism are set on the support mechanism, and the vertical movement mechanism is mainly used to install the receiving coil, and at the same time drive it to perform vertical movement, such as vertical lifting, while the horizontal movement mechanism is mainly used to install the transmitting coil , while driving it to perform horizontal motion, such as sliding in the horizontal plane.

In this way, the wireless charging device test stand provided by this embodiment can change the distance between the receiving coil and the transmitting coil by operating the vertical movement mechanism during the test, and can also change the distance between the receiving coil and the transmission coil by operating the horizontal movement mechanism. and the relative offset of the transmitting coil, so through the joint action of the vertical movement mechanism and the horizontal movement mechanism, the charging coil test of the wireless charging pile device can be successfully completed, and because the manual movement operation of the receiving coil and the transmitting coil is abandoned, the improved It is realized by the mechanical movement of the vertical movement mechanism and the horizontal movement mechanism, so the movement adjustment of the receiving coil and the transmitting coil has greater precision and accuracy, and at the same time improves the test accuracy and the reliability of test results.

as shown in picture 2. Fig. 2 is a specific structural schematic diagram of a support mechanism in a specific embodiment provided by the present invention.

In a preferred embodiment of the supporting mechanism, the supporting mechanism mainly includes a side beam 1 , a lower suspension beam 2 and an upper suspension beam 3 . Wherein, the side beams 1 are generally distributed on both sides of the supporting mechanism, and two side beams 1 facing each other can be arranged at the same time, and the side beams 1 have sufficient height. The lower hanging beam 2 is arranged at the bottom end of the side beam 1, and is connected between the side beams 1 on both sides, and a plurality of lower hanging beams 2 can be arranged. In order to ensure that the lower suspension beam 2 has sufficient support stability, the lower suspension beam 2 can be divided into multiple longitudinal beams connected between the side beams 1 on both sides, and the ends of each longitudinal beam are connected, and connected to the side beams 1 Beams connected at the bottom. The upper hanging beam 3 corresponds to the lower hanging beam 2, and is specifically arranged at the top of the side beam 1, and is connected between the side beams 1 on both sides at the same time, and multiple upper hanging beams 3 can be set at the same time, such as 2 to 4 upper hanging beams 3 along the vertical direction. Arranged side by side, etc. In this way, the vertical movement mechanism can be fixed on the upper suspension beam 3 and the horizontal movement mechanism can be fixed on the lower suspension beam 2 at the same time.

In addition, in order to improve the structural strength of the lower hanging beam 2 and the side beam 1 , an auxiliary beam 4 can also be arranged between the side beam 1 and the lower hanging beam 2 . The auxiliary beam 4 is arranged obliquely, and its two ends are respectively connected with the side beam 1 and the lower suspension beam 2 to form a triangular stable support mechanism. And the two ends of each auxiliary beam 4 can also be installed with 45 ° corner fittings and 135 ° corner fittings to connect and fasten with side beam 1 and lower suspension beam 2, improve the connection strength of the connection position.

Further, in order to improve the overall structural strength of the support mechanism, the side beam 1, the lower suspension beam 2, the upper suspension beam 3 and the side beam 1 can all use hollow aluminum alloy tubes, and the adjacent aluminum alloy tubes can be connected by corner fittings or T Shaped bolts and nuts are spliced and fixed, so that the support mechanism has the advantages of high strength, less elastic deformation, light overall weight, and convenient connection.

Not only that, but in this embodiment, a universal wheel 5 is added at the bottom of the lower hanging beam 2, so that the rolling of the universal wheel 5 can facilitate technicians to move the whole test bracket.

As shown in FIG. 3 , FIG. 3 is a specific structural schematic diagram of a vertical motion mechanism in a specific embodiment provided by the present invention.

In a preferred embodiment of the vertical motion mechanism, the vertical motion mechanism specifically includes a self-locking slide table 6 , a first mounting table 7 and a first lead screw 8 . Wherein, a plurality of slide rails 601 are arranged vertically (vertically) on the self-locking slide table 6, such as two etc., and at the same time, the self-locking slide table 6 is generally rectangular in shape. The length direction of the slide table 6 is parallel to the vertical direction, that is, the self-locking slide table 6 is erected. And, one end of the first mounting table 7 is fixed on the upper suspension beam 3, and the other end is sleeved on each slide rail 601 on the self-locking slide table 6, so that the first mounting table 7 can be connected with the self-locking slide table 6 generates relative sliding through the slide rail 601. Of course, since one end of the first installation platform 7 is fixed on the upper suspension beam 3, only the self-locking sliding platform 6 produces vertical sliding during operation. At the same time, the first lead screw 8 is arranged on the self-locking sliding table 6 , generally distributed along the length direction of the self-locking sliding table 6 . On the first installation platform 7, a through threaded hole is vertically provided, the first lead screw 8 fits with the thread hole, and the end of the first lead screw 8 is connected with the receiving coil.

In this way, when the distance between the receiving coil and the transmitting coil needs to be adjusted, the first lead screw 8 can be screwed first, so that the first lead screw 8 can cooperate with the threaded hole in the first mounting table 7 for transmission. The platform 7 is fixed on the upper suspension beam 3, and at the same time, the first installation platform 7 is sleeved on the slide rail 601 of the self-locking sliding platform 6. Therefore, when the first lead screw 8 is turned, it will synchronize itself with the self-locking sliding platform 6 Perform vertical movement, while the first lead screw 8 drives the receiving coil to perform vertical lifting movement synchronously during the vertical movement.

Further, in this embodiment, a truss 9 is added at the end of the first lead screw 8 . Specifically, the truss 9 may be in an "H" shape, and a plurality of claws 10 are arranged on the truss 9, and the claws 10 are mainly used for clamping the receiving coil. In this way, the receiving coil can be clamped in each claw 10 , and then the height of the receiving coil and the distance between the receiving coil and the transmitting coil can be adjusted by turning the first lead screw 8 . Moreover, considering that the receiving coil is generally in the shape of a circular ring or a rectangular ring, in order to facilitate the clamping of the receiving coil by each claw 10, the claws 10 can be evenly distributed on the truss 9, for example, the overall distribution is circular or rectangular.

In addition, considering that the size of the receiving coil is not fixed, in order to increase the testing range of the test stand, each claw 10 is slidably arranged on the truss 9 , that is, all of them can slide along the truss 9 . In this way, when each claw 10 slides toward the center position on the truss 9, the shape area surrounded by each claw 10 will gradually become smaller, which can adapt to a receiving coil with a smaller size; The shape area will gradually become larger, which can adapt to the receiving coil with larger size.

As shown in FIG. 4 , FIG. 4 is a specific structural schematic diagram of a horizontal movement mechanism in a specific embodiment provided by the present invention.

In a preferred embodiment of the horizontal motion mechanism, the horizontal motion mechanism mainly includes a horizontal sliding table 11 , a vertical sliding table 12 , a second lead screw 13 , a second mounting table 14 and a third lead screw 15 . Wherein, the transverse sliding platform 11 is arranged on each lower hanging beam 2, so it is called the transverse sliding platform 11, because the length direction of the transverse sliding platform 11 is perpendicular to each lower hanging beam 2, which is the transverse direction of the support mechanism, and the same Reason, the length direction of longitudinal slide table 12 is then parallel to each lower suspension beam 2. Of course, the function of the transverse slide 11 and the longitudinal slide 12 is to enable the transmitting coil to move freely in the horizontal plane, so the specific arrangement of the transverse slide 11 and the longitudinal slide 12 is not fixed, and can be freely distributed on the lower suspension beam 2. The transverse slide 11 is generally fixed on the lower suspension beam 2, and the longitudinal slide 12 is slidably arranged on the transverse slide 11, that is, the longitudinal slide 12 can move along the length direction of the transverse slide 11. In order to facilitate the movement of the vertical slide table 12 on the horizontal slide table 11, the second lead screw 13 is arranged along the length direction of the horizontal slide table 11 and threaded through the vertical slide table 12, so that the second lead screw 13 can be screwed to the horizontal slide table 11. The way of leading screw 13 drives longitudinal slide table 12. The second installation platform 14 is slidably arranged on the longitudinal sliding platform 12, and the second installation platform 14 is mainly used for installing the transmitting coil and driving it to move. In order to drive the second mounting table 14 to move on the longitudinal sliding table 12 conveniently, the third lead screw 15 is arranged along the length direction of the longitudinal sliding table 12, and runs through the second mounting table 14 to be screwed to it, so that it can be screwed by turning the second mounting table 14. Three lead screws 15 drive the second mounting table 14 to move on the longitudinal slide table 12 .

In this way, when it is necessary to adjust the relative offset between the transmitting coil and the receiving coil, the second screw 13 can be screwed first, so that the second mounting table 14 moves along the length direction of the transverse slide 11, and then the third screw is loosened. The rod 15 makes the second mounting table 14 move along the longitudinal direction of the slide table 12, and the joint action of the second screw 13 and the third screw 15 can make the second mounting table 14 move to any position in the horizontal plane. The second mounting table 14 drives the transmitting coil to move synchronously, so that the relative offset between the transmitting coil and the receiving coil can be adjusted arbitrarily.

Further, for the convenience of technicians to test and unscrew each lead screw, in this embodiment, a crank handle 16 is provided at one end of the first lead screw 8, the second lead screw 13 and the third lead screw 15, which is convenient for manual rotation.

In addition, considering that the receiving coil and the transmitting coil are in a normal working state during the test, that is, there is an electric current in the two, in order to ensure the safety of technicians and avoid electric shock accidents, in this embodiment, the second installation platform 14 An insulating plate 17 is added between the transmitting coil, and each claw 10 is set to an insulating material, and its preferred material is PP, PC, ABS, PPS, PA, Bakelite, etc.; the preferred material of the insulating plate 17 is PP, PC, ABS, PPS, PA, Bakelite, etc.

In addition, considering that when the vertical sliding table 12 slides on the horizontal sliding table 11, one end may fall on the horizontal sliding table 11, while the other end is suspended in the air. In view of this, this embodiment adds auxiliary support on the lower hanging beam 2. rail18. Specifically, the transverse sliding table 11 and the auxiliary guide rail 18 can be arranged in parallel, and are respectively located at the two ends of the lower suspension beam 2 .

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not 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. A test stand for a wireless charging device, characterized in that it includes a vertical movement mechanism for installing the receiving coil and driving its vertical movement, a horizontal movement mechanism for installing the transmitting coil and driving its horizontal movement, and for installing The supporting mechanism of the vertical movement mechanism and the horizontal movement mechanism. 2. The wireless charging device test stand according to claim 1, characterized in that, the support mechanism includes side beams (1) arranged oppositely, and a bridge connected between the bottom ends of the side beams (1) on both sides. A plurality of lower suspension beams (2), and a plurality of upper suspension beams (3) connected between the top ends of the side beams (1) on both sides; the vertical motion mechanism is fixed on the upper suspension beams (3), and the The horizontal motion mechanism is fixed on the lower hanging beam (2). 3. The wireless charging device test stand according to claim 2, characterized in that, the support mechanism further includes an auxiliary device connected between the side beam (1) and the lower suspension beam (2) for improving the structural strength Beam (4). 4. The wireless charging device test stand according to claim 3, characterized in that, the bottom of the lower suspension beam (2) is provided with universal wheels (5) for horizontal walking. 5. The wireless charging device test stand according to claim 2, characterized in that, the vertical movement mechanism includes a self-locking slide (6), a first mounting platform (7) and a set of self-locking slides ( 6) on the first lead screw (8); the self-locking slide table (6) is vertically provided with several slide rails (601), and one end of the first mounting table (7) is fixed on the On the upper hanging beam (3), the other end is sleeved on the slide rail (601); the first installation platform (7) is vertically provided with threaded holes, and the first lead screw (8) runs through the The first installation platform (7) is matched with the threaded hole, and the end of the first lead screw (8) is connected with the receiving coil. 6. The wireless charging device test stand according to claim 5, characterized in that it further comprises a truss (9) connected to the end of the first lead screw (8), on which several A claw (10) for clamping the receiving coil. 7. The wireless charging device test stand according to claim 6, characterized in that, each of the claws (10) is evenly distributed on the truss (9), and each of the claws (10) can slide ground and arranged on the truss (9); each of the claws (10) is made of insulating material. 8. The wireless charging device test stand according to any one of claims 5-7, characterized in that, the horizontal movement mechanism includes a horizontal sliding table (11) and a slidable The vertical sliding table (12) that is arranged on the described horizontal sliding table (11); The described horizontal sliding table (11) is provided with along its lengthwise distribution and is used to drive described vertical sliding table (12) to slide The second lead screw (13), the second installation platform (14) is slidably arranged on the longitudinal sliding platform (12), and is distributed along its length direction and is used to drive the second installation platform (14) to slide The third lead screw (15); the transmitting coil is arranged on the second installation platform (14). 9. The wireless charging device test stand according to claim 8, characterized in that, it also includes one end arranged on the first lead screw (8), the second lead screw (13) and the third lead screw (15) , the rocking handle (16) that is used for manual rotation. 10. The wireless charging device test stand according to claim 9, characterized in that an insulating plate (17) is arranged between the second installation platform (14) and the transmitting coil.