Clamping device and test equipment

Abstract

The utility model provides a clamping device and testing equipment, and relates to the technical field of electronic equipment testing. The clamping device comprises a first base, a bearing assembly and a clamping assembly, the bearing assembly is arranged on the first base, the bearing assembly and the first base are arranged in the first direction, the bearing assembly can rotate relative to the first base, and / or the bearing assembly can move relative to the first base in the first direction; the clamping assembly comprises a first clamping piece and a second clamping piece which are arranged in the second direction, the first clamping piece and the second clamping piece are both located on the side, away from the first base, of the bearing assembly, the first clamping piece can move in the second direction relative to the bearing assembly, and the first direction is perpendicular to the second direction.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of electronic equipment radiation test, in particular to a clamping device and test equipment. BACKGROUND

[0002] With the terminal product playing a more and more important role in people's daily life, users have higher requirements on the performance (such as the whole machine electromagnetic radiation performance, the anti-electromagnetic interference performance, etc.) of the terminal product.

[0003] When the performance test is performed on the test piece such as electronic equipment, the fixture is usually used to fix the electronic equipment, however, the fixture in the related art has poor compatibility and poor clamping stability. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a clamping device and test equipment, which can be compatible with various types of electronic equipment, has good clamping stability, and can ensure the test consistency of the test equipment.

[0005] To achieve the above object, the present application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a clamping device, comprising a first base, a bearing assembly and a clamping assembly, the bearing assembly is arranged on the first base, the bearing assembly and the first base are arranged in a first direction, the bearing assembly can rotate relative to the first base, and / or the bearing assembly can move along the first direction relative to the first base; the clamping assembly comprises a first clamping piece and a second clamping piece arranged in a second direction, the first clamping piece and the second clamping piece are located on the side of the bearing assembly away from the first base, and the first clamping piece can move along the second direction relative to the bearing assembly, and the first direction is perpendicular to the second direction.

[0007] The clamping device of the embodiment of the present application can be compatible with electronic equipment of various sizes, the clamping assembly can also stably fix the electronic equipment in different placement states, the electronic equipment can be conveniently clamped between the first clamping piece and the second clamping piece or taken out of the clamping assembly, and the bearing assembly can also meet the placement requirements of different heights and different angles of the electronic equipment. Since the electronic equipment can be stably fixed in the clamping assembly, even if the clamping assembly rotates relative to the first base, the relative position of the electronic equipment and the clamping assembly will not change.

[0008] In this way, the test results under the same working condition can be ensured to be stable, and the consistency and accuracy of the test results can be improved. On the other hand, during the test process, the electronic device can be conveniently and quickly adjusted to the target placement state, and manual adjustment of the relative position of the electronic device and the clamping assembly is not required multiple times, thereby saving the placement time of the electronic device in the clamping device and improving the test efficiency.

[0009] In a possible implementation manner of the first aspect, the bearing assembly is rotatable about a third rotation axis, and the third rotation axis is parallel to the third direction. In this way, the bearing assembly can be rotated about the third rotation axis to a state in which one of the third end and the fourth end is close to the first base in the first direction and the other is away from the second base in the first direction, so as to change the placement state of the electronic device.

[0010] In a possible implementation manner of the first aspect, the clamping assembly further comprises a shock-absorbing buffer layer, and a side surface of the first clamping piece facing the second clamping piece is provided with the shock-absorbing buffer layer. In this way, when the first clamping piece and the second clamping piece clamp the to-be-tested piece, the shock-absorbing buffer layer can absorb the shock, so as to protect the electronic device from being scratched.

[0011] In a possible implementation manner of the first aspect, the clamping assembly further comprises a shock-absorbing buffer layer, and a side surface of the second clamping piece facing the first clamping piece is provided with the shock-absorbing buffer layer. In this way, when the first clamping piece and the second clamping piece clamp the to-be-tested piece, the shock-absorbing buffer layer can absorb the shock, so as to protect the electronic device from being scratched.

[0012] In a possible implementation manner of the first aspect, the clamping assembly further comprises a shock-absorbing buffer layer, and a side surface of the first clamping piece facing the second clamping piece and a side surface of the second clamping piece facing the first clamping piece are both provided with the shock-absorbing buffer layer. In this way, when the first clamping piece and the second clamping piece clamp the to-be-tested piece, the shock-absorbing buffer layer can absorb the shock, so as to protect the electronic device from being scratched.

[0013] In a possible implementation manner of the first aspect, the bearing assembly comprises a first support plate, the first support plate has a first surface and a second surface opposite to each other, the first clamping piece and the second clamping piece are located on a side facing the first surface, and the second surface faces away from the clamping assembly. In this way, the electronic device can be supported on the first surface and clamped by the first clamping piece and the second clamping piece, so as to realize multi-directional positioning of the electronic device.

[0014] In a possible implementation manner of the first aspect, the bearing assembly comprises a first support plate, the first support plate is provided with a first guide structure extending along the second direction, the first clamping piece is provided with a first matching structure, the first matching structure is in sliding fit with the first guide structure, so that the first clamping piece can move along the second direction under the guidance of the first guide structure, and the moving direction of the first clamping piece is prevented from deviating.

[0015] In a possible implementation manner of the first aspect, the first guide structure and the first matching structure are in sliding fit with each other, one of the first guide structure and the first matching structure forms a first guide protrusion, and the other forms a first guide groove, so as to realize stable movement of the first clamping piece along the second direction relative to the first support plate.

[0016] In a possible implementation manner of the first aspect, in some embodiments, the clamping assembly further comprises a first reinforcing rib, the first reinforcing rib is arranged on a side of the first clamping piece away from the second clamping piece, and the first reinforcing rib is used for reinforcing the structural strength of the first clamping piece.

[0017] In a possible implementation manner of the first aspect, the clamping device further comprises a first driving assembly connected with the first clamping piece, and the first driving assembly is used for driving the first clamping piece to move along the second direction. In this way, the position of the first clamping piece can be accurately controlled through the first driving assembly, so that the position of the electronic device fixed by the clamping assembly is more accurate and standard.

[0018] In a possible implementation manner of the first aspect, the first driving assembly is connected with the first clamping piece through the first matching structure, the first matching structure not only realizes the guiding fit with the first guide structure, but also serves as a transmission connection structure of the first driving assembly and the first clamping piece. In this way, other structures for connecting the first driving assembly and the first clamping piece do not need to be arranged, which is beneficial to simplifying the structure of the clamping device.

[0019] In a possible implementation manner of the first aspect, the first driving assembly comprises a first driving rod extending along the second direction; the first driving rod is in transmission connection with the first clamping piece, the first driving rod can rotate about its own axis, and the axis of the first driving rod is parallel to the second direction, so that the transmission from circular motion to linear motion is formed between the first clamping piece and the first driving rod, to drive the first clamping piece to move along the second direction.

[0020] In a possible implementation manner of the first aspect, the clamping assembly further comprises a first connecting piece, the first connecting piece is located on a side of the first supporting plate away from the clamping assembly, and the first connecting piece is connected to the first clamping piece, and the first driving rod is in threaded cooperation with the first connecting piece. Thus, when the first driving rod performs a circumferential motion, the first connecting piece and the first clamping piece perform a linear motion in the second direction. For example, the first connecting piece, the first cooperating structure and the first clamping piece are connected, so that when the first connecting piece moves, the first cooperating structure and the first clamping piece can move synchronously with the first connecting piece.

[0021] In a possible implementation manner of the first aspect, the bearing assembly further comprises a second supporting plate and a fixing piece, the second supporting plate is arranged between the first base and the first supporting plate, the fixing piece is fixed between the first supporting plate and the second supporting plate, and the first driving rod is rotatably connected to the fixing piece. Thus, the first supporting plate and the second supporting plate form a first accommodating space therebetween, and the fixing piece is fixed between the first supporting plate and the second supporting plate, so that when the first driving rod is subjected to a force, the first driving rod can rotate about its own axis relative to the fixing piece in the first accommodating space.

[0022] In a possible implementation manner of the first aspect, the first clamping piece and the second clamping piece form a clamping space therebetween, and the clamping space is open at at least one end in a third direction perpendicular to the first direction and the second direction. Thus, the electronic device located in the clamping space can extend out of the clamping space from the side open in the third direction, and the electronic device with a large size can be clamped by the clamping assembly.

[0023] In a possible implementation manner of the first aspect, the clamping assembly has a first clamping state, and when the clamping assembly is in the first clamping state, the distance between the first clamping piece and the second clamping piece in the second direction is greater than 15 cm and less than or equal to 50 cm. Thus, when the clamping assembly is in the first clamping state, the electronic device with a length greater than 15 cm can be clamped.

[0024] In a possible implementation manner of the first aspect, the clamping assembly further has a second clamping state, and when the clamping assembly is in the second clamping state, the distance between the first clamping piece and the second clamping piece in the second direction is greater than 0 and less than or equal to 15 cm. Thus, the clamping assembly can clamp a straight bar mobile phone in the second clamping state, and can clamp a folded mobile phone, a tablet computer and other electronic devices with a large size in the first clamping state.

[0025] In a possible implementation manner of the first aspect, a size of the first clamping member in the first direction is greater than or equal to 5 cm and less than or equal to 10 cm. In this way, the size of the clamping space in the first direction (i.e., the depth of the clamping space) in the clamping assembly is increased, which is beneficial to increase the size of the electronic device inserted into the clamping space, thereby avoiding the electronic device from sliding out of the clamping space.

[0026] In a possible implementation manner of the first aspect, the second support plate is provided with a third guide structure extending in the second direction, and the first connecting member is provided with a third matching structure in sliding cooperation with the third guide structure. In this way, under the guidance of the third guide structure, the third matching structure drives the first connecting member to move in the second direction, thereby avoiding the movement direction of the first connecting member from deviating.

[0027] In a possible implementation manner of the first aspect, the first driving assembly further includes a first handle, and the first handle is connected with the first driving rod. A user can drive the first handle to rotate circumferentially and drive the first driving rod to rotate circumferentially by exerting an external force.

[0028] In a possible implementation manner of the first aspect, the first handle includes a holding portion and a connecting portion, the holding portion is fixed to the connecting portion, an axial end of the first driving rod is fixedly connected with the connecting portion, and the holding portion is spaced apart from the first driving rod. In this way, an operator can hold the holding portion to exert a force on the holding portion to drive the holding portion to rotate, thereby driving the connecting portion and the first driving rod to rotate together with the holding portion, which is beneficial to reduce the operation difficulty and improve the test efficiency.

[0029] In a possible implementation manner of the first aspect, the second clamping member is movable relative to the bearing assembly in the second direction, so that the first clamping member and the second clamping member are both movably arranged. In this case, the first clamping member and the second clamping member can move towards each other in the second direction to fix the electronic device between the first clamping member and the second clamping member. Similarly, the first clamping member and the second clamping member can move away from each other to take out the electronic device.

[0030] In a possible implementation manner of the first aspect, the first driving assembly can include two first driving assemblies, and the first clamping member and the second clamping member are both connected with one of the first driving assemblies, so as to realize the independent control of the first driving assembly on the movement of the first clamping member and the second clamping member in the second direction.

[0031] In a possible implementation manner of the first aspect, the clamping device includes a second driving assembly, and the second driving assembly is configured to drive the bearing assembly to rotate relative to the first base. In this way, the rotation angle of the clamping assembly can be accurately controlled by the second driving assembly, and the rotation angle of the electronic device can be accurately controlled.

[0032] In a possible implementation manner of the first aspect, the clamping device comprises a third support plate and a second driving assembly, the third support plate is located between the bearing assembly and the first base, and the second driving assembly is arranged on the third support plate and used for driving the bearing assembly to rotate relative to the first base. The third support plate is located between the bearing assembly and the first base as a bearing structure of the second driving assembly, and the second driving assembly is arranged on the third support plate. In this way, the third driving assembly is located between the bearing assembly and the third support plate and plays a role of supporting and driving, so as to accurately control the angle of the clamping assembly through the second driving assembly.

[0033] In a possible implementation manner of the first aspect, the clamping device comprises a second connecting piece, the second connecting piece is fixed to a side surface of the bearing assembly close to the third support plate, the second driving assembly comprises a first driving unit and a second driving rod, the second driving rod is fixed to the second connecting piece, and the first driving unit is used for driving the second driving rod to rotate about an axis thereof. The first driving unit is used for driving the second driving rod to rotate about the axis thereof, the second driving rod drives the second connecting piece to rotate, so that the second connecting piece can rotate about a first direction, or the second connecting piece can rotate about a second direction, or the second connecting piece can rotate about a third direction.

[0034] In a possible implementation manner of the first aspect, the first driving unit comprises a first transmission member, a second transmission member and a third transmission member, the first transmission member can rotate about an axis thereof, the first transmission member is in transmission connection with the second transmission member, the second transmission member is in transmission connection with the third transmission member, and the third transmission member is fixed to the second driving rod. In this way, when the first transmission member rotates about the axis thereof, the second transmission member can be driven to move, and the third transmission member can be driven to rotate about the axis of the second driving rod through the second transmission member, so as to realize the rotation of the second driving rod about the axis thereof, and the second driving rod can drive the second connecting piece and the bearing assembly to rotate synchronously, thereby finally realizing the transmission of the movement from the first driving unit to the second connecting piece.

[0035] In a possible implementation manner of the first aspect, the first transmission member comprises a third driving rod, and the second driving assembly further comprises a second handle, the second handle is connected with the third driving rod, and a user can drive the second handle to rotate circumferentially and drive the third driving rod to rotate about an axis thereof by exerting an external force.

[0036] In a possible implementation manner of the first aspect, the second transmission member comprises a first rack, the third transmission member comprises a first gear, the first gear is in meshing connection with the first rack and is connected with the second driving rod. The second driving rod rotates about the axis thereof to drive the first rack to move linearly, and the first rack moves linearly under the driving of the third driving rod to drive the first gear to rotate about the axis of the second driving rod.

[0037] In a possible implementation manner of the first aspect, the second transmission member further comprises a third connecting member, the third connecting member is arranged between the first rack and the third support plate, the third driving rod and the third connecting member are matched, when the third driving rod rotates around its own axis, the third connecting member and the first rack connected with the third connecting member can be driven to generate linear motion, so as to realize the transmission between the second transmission member and the first transmission member.

[0038] In a possible implementation manner of the first aspect, the third driving rod is threadedly matched with the third connecting member, so that the third connecting member and the first driving rod form a screw-nut transmission structure, so as to realize linear motion of the third connecting member when the third driving rod performs circular motion.

[0039] In a possible implementation manner of the first aspect, the third support plate is provided with a second guide structure, the third connecting member is provided with a second matching structure, the second matching structure is slidably matched with the second guide structure, so as to stably guide the motion of the first rack through the second guide structure and avoid deviation of the moving direction of the third connecting member.

[0040] In a possible implementation manner of the first aspect, the clamping device further comprises a third driving assembly, the third driving assembly is arranged between the first base and the bearing assembly, and the third driving assembly is used to drive the bearing assembly to move in the first direction, so that the position of the clamping assembly in the first direction can be accurately controlled through the third driving assembly.

[0041] In a possible implementation manner of the first aspect, the third driving assembly is arranged between the third support plate and the first base, so that the third driving member drives the third support plate, the second driving assembly, the first driving assembly, the first connecting member, the bearing assembly and the clamping assembly to move in the first direction.

[0042] In a possible implementation manner of the first aspect, the third driving assembly comprises a fourth transmission member and a fifth transmission member which are connected in transmission, the fifth transmission member is fixed relative to the bearing assembly, and the fourth transmission member can rotate to drive the fifth transmission member to move in the first direction, so that the fifth transmission member can drive the bearing assembly to rotate in the first direction, and finally complete the transmission from circular rotation to linear motion.

[0043] In a possible implementation manner of the first aspect, the fourth transmission member comprises a fourth driving rod and a second gear fixedly connected, the fifth transmission member comprises a third gear, the second gear is engaged with the third gear, the third driving assembly further comprises a first supporting column, one end of the first supporting column is fixed to the first base, the third gear is threadedly connected with the end of the first supporting column away from the first base, and the fourth driving rod is capable of rotating about its own axis to drive the third gear to rotate relative to the first supporting column and move in the first direction. In this way, the fourth driving rod and the second gear are capable of rotating about the third direction, thereby driving the third gear to rotate about the first direction, and due to the threaded connection between the third gear and the first supporting column, the third gear moves away from the first base in the first direction while rotating about the circumference, thereby increasing the total height of the clamping device in the first direction, and the third gear is also capable of moving towards the first base in the first direction while rotating about the circumference, thereby reducing the total height of the clamping device in the first direction.

[0044] In a possible implementation manner of the first aspect, the third driving assembly further comprises a third handle connected with the fourth driving rod, and a user can drive the third handle to rotate about the circumference and drive the fourth driving rod to rotate about the circumference by exerting an external force.

[0045] In a possible implementation manner of the first aspect, the clamping device further comprises a second supporting column, one end of the second supporting column is fixed to the first base, and the third supporting plate is provided with a matching hole in sliding fit with the second supporting column, and the second supporting column and the first supporting column jointly support the first base. When the third driving assembly drives the third supporting plate to move in the first direction, the third supporting plate moves relative to the first supporting column under the sliding fit of the matching hole.

[0046] In a possible implementation manner of the first aspect, the clamping device further comprises a limiting member fixed to the second supporting column and located on the side of the third supporting plate away from the first base, so that the limiting member, the third supporting plate and the first base are sequentially arranged in the first direction, and when the third driving member drives the third supporting plate to move away from the first base, the farthest position that the third supporting plate can reach is the position abutting against the limiting member.

[0047] In a possible implementation manner of the first aspect, the side of the first base away from the bearing assembly is provided with a first positioning portion in the form of a protrusion or a groove, and the first base can be fixed to the outside through the first positioning portion at the bottom.

[0048] In a possible implementation manner of the first aspect, the clamping device further comprises a second base detachably connected to a side of the first base away from the bearing assembly, the second base has a second positioning portion matched with the first positioning portion, and a side of the second base away from the first base forms a support surface. In this way, the second base forms an optional accessory, and the second base can be assembled on the first base, and the clamping device and the external equipment are fixed through the support surface.

[0049] In a possible implementation manner of the first aspect, a height of the clamping device in the first direction satisfies greater than or equal to X1 and less than or equal to X2, X1 is greater than or equal to 15 cm and less than or equal to 40 cm, and X2 is greater than or equal to 50 cm and less than or equal to 70 cm, so that the total height of the clamping device is adjusted according to actual needs, so as to lift or lower the electronic equipment.

[0050] In a possible implementation manner of the second aspect, the performance test comprises an air interface test and a specific absorption rate test, so as to obtain an overall electromagnetic radiation performance parameter of the electronic equipment.

[0051] In a possible implementation manner of the second aspect, the performance test comprises an air interface test and a specific absorption rate test, so as to obtain an overall electromagnetic radiation performance parameter of the electronic equipment. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 A structural schematic diagram of a clamping device for fixing an electronic equipment according to some embodiments of the present application is shown in FIG. 1;

[0053] Figure 2 A structural schematic diagram of a clamping device for fixing an electronic equipment according to some embodiments of the present application is shown in FIG. 1; Figure 1

[0054] Figure 3 A structural schematic diagram of a clamping device for fixing an electronic equipment according to some embodiments of the present application is shown in FIG. 1;

[0055] Figure 4 A structural schematic diagram of a clamping device for fixing an electronic equipment according to some embodiments of the present application is shown in FIG. 1; Figure 3

[0056] A structural schematic diagram of a clamping device for fixing an electronic equipment according to some embodiments of the present application is shown in FIG. 1; Figure 5

[0057] A structural schematic diagram of a clamping device for fixing an electronic equipment according to some embodiments of the present application is shown in FIG. 1; Figure 6 Figure 5 ​​The clamping device shown clamps three different electronic devices in different positions;

[0058] Figure 7 The clamping device shown clamps three different electronic devices in different positions;

[0059] Figure 8 The clamping device shown clamps three different electronic devices in different positions; Figure 7 The clamping device shown clamps three different electronic devices in different positions;

[0060] Figure 9 The clamping device shown clamps three different electronic devices in different positions; Figure 7 The clamping device shown clamps three different electronic devices in different positions;

[0061] Figure 10a The clamping device shown clamps three different electronic devices in different positions;

[0062] Figure 10b The clamping device shown clamps three different electronic devices in different positions;

[0063] Figure 11a The clamping device shown clamps three different electronic devices in different positions; Figure 7 The clamping device shown clamps three different electronic devices in different positions;

[0064] Figure 11b The clamping device shown clamps three different electronic devices in different positions; Figure 7 The clamping device shown clamps three different electronic devices in different positions;

[0065] Figure 12 The clamping device shown clamps three different electronic devices in different positions; Figure 11b The clamping device shown clamps three different electronic devices in different positions;

[0066] Figure 13 The clamping device shown clamps three different electronic devices in different positions; Figure 11b The clamping device shown clamps three different electronic devices in different positions;

[0067] Figure 14 The clamping device shown clamps three different electronic devices in different positions; Figure 13 The clamping device shown clamps three different electronic devices in different positions;

[0068] Figure 15a The clamping device shown clamps three different electronic devices in different positions; Figure 14 The clamping device shown clamps three different electronic devices in different positions;

[0069] Figure 15b The clamping device shown clamps three different electronic devices in different positions; Figure 15a The clamping device shown clamps three different electronic devices in different positions;

[0070] Figure 16 The clamping device shown clamps three different electronic devices in different positions; Figure 11b The clamping device shown clamps three different electronic devices in different positions;

[0071] Figure 17 The clamping device shown clamps three different electronic devices in different positions;Figure 7 An exploded structural schematic view of a second part of the clamping device shown;

[0072] Figure 18 For Figure 17 An exploded structural schematic view of the second driving assembly and the second connecting piece shown;

[0073] Figure 19 For Figure 17 An assembly schematic view of the second driving assembly and the third connecting piece of the clamping device shown;

[0074] Figure 20 For Figure 7 Another perspective structural schematic view of the clamping device shown;

[0075] Figure 21 For Figure 20 A partial cross-sectional structural schematic view of the clamping device shown;

[0076] Figure 22 For Figure 21 A structural schematic view of the third support plate;

[0077] Figure 23 For Figure 20 A partial structural schematic view of the clamping device shown;

[0078] Figure 24 For Figure 23 A structural schematic view of the first base of the clamping device shown;

[0079] Figure 25 For Figure 23 A structural schematic view of the second base;

[0080] Figure 26 For Figure 25 Another perspective structural schematic view of the second base.

[0081] Reference signs:

[0082] 100, clamping device;

[0083] N, fixing seat; N1, assembly groove; M1, first support piece; M11, fixing groove; M2, second support piece; M22, through hole;

[0084] K1, support part; K2, clamping part; K21, first limiting part; K22, second limiting part; k3, frame body;

[0085] 10, first base; 11, first positioning part; 20, second base; 21, second positioning part; 22, support surface;

[0086] 30, bearing assembly; 31, first support plate; 31a, first surface; 31b, second surface; 311, first guide structure; 32, second support plate; 321, third guide structure; 33, fixing member; 34, first containing space;

[0087] 40, clamping assembly; 41, first clamping member; 42, second clamping member; 43, first matching structure; 44, first connecting member; 441, third matching structure; 45, first reinforcing rib; 46, clamping space; 461, first opening; 462, second opening; 463, third opening; 47, shock-absorbing buffer layer;

[0088] 50, first driving assembly; 51, first driving rod; 52, first handle; 521, gripping part; 522, first connecting part; 523, first connecting part;

[0089] 60, second driving assembly; 61, first driving unit; 611, first transmission member; 6111, third driving rod; 612, second transmission member; 6121, first rack; 6122, third connecting member; 6122a, second matching structure; 6123, first connecting block; 6124, second connecting block; 613, third transmission member; 6131, first gear; 62, second driving rod; 63, second handle;

[0090] 80, third driving assembly; 81, fourth transmission member; 811, fourth driving rod; 812, second gear; 82, fifth transmission member; 821, third gear; 83, third handle; 84, first support column;

[0091] 71, third support plate; 712, matching hole; 72, second connecting member; 73, second guide structure; 731, first guide block; 732, second guide block; 74, second support column; 75, limiting member;

[0092] 2000, electronic device;

[0093] 3000, test bench; 3001, matching positioning part;

[0094] L1, first direction; L2, second direction; L3, third direction. DETAILED DESCRIPTION

[0095] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0096] In the embodiments of the present application, the term "exemplary" or "for example" is used to indicate an example, an illustration, or a description. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or superior to other embodiments or design solutions. In fact, the term "exemplary" or "for example" is used in the sense of that is one possible solution, meaning that is only a choice among many possible solutions. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being preferred or superior to other embodiments or design solutions.

[0097] In the embodiments of the present application, the terms "first", "second" are used only for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0098] In the description of the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents that the front and rear associated objects are in an "or" relationship.

[0099] In the embodiments of the present application, the orientation terms such as "outside" can include but not limited to the orientation defined by the relative position of the components shown in the drawings. It should be understood that these directional terms can be relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the position of the components shown in the drawings.

[0100] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, "connecting" can be detachable connection, or can be non-detachable connection; can be direct connection, or indirect connection through intermediate medium. Among them, "fixed connection" means that the relative positional relationship after connection is unchanged.

[0101] In the description of the embodiments of the present application, the terms "vertical", "parallel" include the described cases and the cases similar to the described cases, and the range of the similar cases is within the acceptable deviation range, wherein the acceptable deviation range is determined by the person skilled in the art considering the measurement being discussed and the error related to the measurement of the specific quantity (i.e. the limitation of the measurement system). For example, "parallel" includes absolute parallel and approximate parallel, wherein the acceptable deviation range of approximate parallel can be within 5°, 8° or 10°, for example; "vertical" includes absolute vertical and approximate vertical, wherein the acceptable deviation range of approximate vertical can also be within 5°, 8° or 10°, for example.

[0102] With the evolution of electronic devices represented by smart phones, the influence of electromagnetic radiation generated by electronic devices during use on human health has attracted widespread public attention. In order to ensure the safe operation of electronic devices and protect the vital interests of users, the influence of electromagnetic radiation on the human body must meet the relevant safety standards before the electronic devices can be put into use. Therefore, it is usually necessary to test the overall performance of the electronic devices, such as the overall electromagnetic radiation performance and the anti-electromagnetic interference performance, by using a test device.

[0103] In order to measure the overall electromagnetic radiation performance of electronic devices, over the air (OTA) testing and specific absorption rate (SAR) testing are widely used.

[0104] OTA is used to test the total radiated power (TRP) and total isotropic sensitivity (TIS) of electronic devices through a radio frequency interface, reflecting the wireless performance indicators of electronic devices (such as mobile phones, etc.). The call quality and signal interference resistance of electronic devices belong to the OTA category.

[0105] OTA testing is a comprehensive evaluation of the overall performance of electronic devices in a test environment that maximizes the actual use scenario of electronic devices. During the testing process, internal radiation interference of electronic devices, structure of electronic devices, factors of antennas, radio frequency chip transceiver algorithms, and a series of factors affected by the human body are considered. Through OTA passive and active testing, the basis and direction are provided for the overall wireless performance optimization of electronic devices, and the evaluation of the radio frequency performance of the transceiver electronic device has great significance.

[0106] SAR testing refers to the electromagnetic wave power absorbed or consumed by unit mass of human tissue per unit time, with the unit of W / kg. Under the action of external electromagnetic fields, the human body will generate an induced electromagnetic field, and various organs of the human body are lossy media, so the internal electromagnetic field will generate induced current, leading to absorption and dissipation of electromagnetic energy. In biometrics, SAR is often used to represent this physical process.

[0107] During SAR testing, the electronic device can be placed in the test space of a shielded room, and at the same time, a human body model, a measurement probe, etc. are also provided in the test space. The inside of the human body model is a liquid substance, and the electromagnetic properties of the liquid are consistent with the electromagnetic properties of human tissue to simulate human tissue. The measurement probe can move freely in the test space to test the electronic device, and finally the value of the specific absorption rate SAR is calculated through a fixed formula.

[0108] In some embodiments, the testing device comprises a testing apparatus and a clamping apparatus, the clamping apparatus is used to clamp and fix the to-be-tested piece, and the testing apparatus is used to test the performance of the to-be-tested piece.

[0109] In some embodiments, the to-be-tested piece can be the electronic device as described above, and the performance test can be the OTA test, the SAR test, or other tests such as the anti-interference test (EMC) as described above. In other embodiments, the to-be-tested piece can also be other devices. Hereinafter, the to-be-tested piece is taken as an example of the electronic device, but this should not be understood as a limitation of the present application.

[0110] Please refer to Figure 1 and Figure 2 , Figure 1 for a structural schematic diagram of a clamping apparatus 100 provided by some embodiments of the present application for fixing an electronic device 2000, Figure 2 for Figure 1 an exploded structural schematic diagram of the clamping apparatus 100, the clamping apparatus 100 comprises a fixing seat N and a first supporting piece M1, the fixing seat N has an assembly groove N1, and the first supporting piece M1 can be arranged in the assembly groove N1. The first supporting piece M1 has a fixing groove M11 for cooperating with the electronic device 2000, and the electronic device 2000 can be assembled in the fixing groove M11, so as to realize the fixation of the electronic device 2000 on the clamping apparatus 100.

[0111] In some embodiments, when the clamping apparatus 100 is applied to the whole machine electromagnetic radiation performance test such as the OTA test, the fixing seat N and the first supporting piece M1 of the clamping apparatus 100 can both be non-metal materials, so as to avoid the influence of the metal contained in the clamping apparatus 100 on the test results of the whole machine electromagnetic radiation performance.

[0112] For example, the fixing seat N can be a foam piece, and the first supporting piece M1 can be a sponge block with certain hardness. In this way, the sponge block has certain structural strength, so as to realize the reliable support of the electronic device 2000.

[0113] In some embodiments, as shown in Figure 1 , the electronic device 2000 can be a straight phone. For example, the electronic device 2000 is in the form of a rectangular flat plate. In some embodiments, in order to adapt to the installation of the electronic device 2000, the fixing groove M11 can be arranged in the form of a long strip. One end of the length direction of the electronic device 2000 can be inserted into the fixing groove M11. In this way, when the electronic device 2000 is located in the fixing groove M11, the length direction of the electronic device 2000 can be substantially parallel to the depth direction of the fixing groove M11, the width direction of the electronic device 2000 can be parallel to the length direction of the fixing groove M11, and the thickness direction of the electronic device 2000 can be substantially parallel to the width direction of the fixing groove M11.

[0114] For example, the width of the electronic device 2000 can be substantially the same as the length of the fixing groove M11, and the thickness of the electronic device 2000 can be substantially the same as the width of the fixing groove M11, so that the electronic device 2000 can be stably fixed in the fixing groove M11.

[0115] However, at least one of the length, width and thickness of different types of electronic devices 2000 can not be the same, so the size of the fixing groove M11 cannot be adapted to multiple types of electronic devices 2000.

[0116] Specifically, in some test scenarios, when the width of the electronic device 2000 is less than the length of the fixing groove M11, and / or the thickness of the electronic device 2000 is less than the width of the fixing groove M11, for example, the electronic device 2000 is a mini straight mobile phone, after the electronic device 2000 is placed in the fixing groove M11, sponge, foam or other materials need to be inserted into the gap between the groove wall of the fixing groove M11 and the electronic device 2000 to firmly fix the electronic device 2000 in the fixing groove M11.

[0117] In other test scenarios, when the length of the electronic device 2000 is greatly different from the depth of the fixing groove M11, resulting in that the part of the electronic device 2000 inserted into the fixing groove M11 is too small, for example, the part of the electronic device 2000 inserted into the fixing groove M11 is less than one fifth of the total length of the electronic device 2000, the first support M1 can be raised to increase the depth of the fixing groove M11. In this way, the electronic device 2000 can be prevented from being pulled out of the fixing groove M11.

[0118] In yet other test scenarios, when the width of the electronic device 2000 is greater than the length of the fixing groove M11, for example, the electronic device 2000 is a tablet computer or a folded mobile phone in an unfolded state, the electronic device 2000 cannot be placed in the fixing groove M11 at this time.

[0119] In order to fix the electronic device 2000 such as a tablet computer or a folded mobile phone in an unfolded state, the first support M1 can be taken out of the assembly groove N1, and a new second support can be provided at the opening position of the fixing groove M11.

[0120] Please refer to Figures 3-4 , Figure 3 A structure diagram of a clamping device 100 provided by some embodiments of the present application for fixing an electronic device 2000, Figure 4 for Figure 3The side view of the clamping device 100 in the structural schematic diagram shown, the clamping device 100 includes a fixed seat N and a second support M2, the second support M2 is provided with a through hole M22, the through hole M22 can be provided in a strip shape, the length direction of the electronic device 2000 can be substantially parallel to the central axis of the through hole M22, the width direction of the electronic device 2000 can be parallel to the length of the through hole M22, the thickness direction of the electronic device 2000 can be substantially parallel to the width direction of the through hole M22, and the length of the through hole M22 is greater than Figure 1 The length of the fixed slot M11 in the embodiment shown.

[0121] One end of the length direction of the electronic device 2000 can be inserted into the assembly slot N1 through the through hole M22. For example, one second support M2 can be simultaneously provided on two fixed seats N, so that when the width of the electronic device 2000 is greater than Figure 1 The length of the fixed slot M11 shown, a longer through hole M22 can be provided for the electronic device 2000 to pass through and fix the electronic device 2000 through the second support M2.

[0122] Similarly, in Figure 3 and Figure 4 The embodiment shown, when the length of the electronic device 2000 and the depth of the assembly slot N1 are greatly different, resulting in too little of the electronic device 2000 inserted into the assembly slot N1, the second support M2 still needs to be raised to ensure the fixation of the electronic device 2000.

[0123] In addition, in the test scene of multiple working conditions, the position of the electronic device 2000 needs to be changed by changing the position of the clamping device 100 to test different working conditions. However, since the electronic device 2000 in the above-mentioned embodiment is suspended in the assembly slot N1, during the movement of the clamping device 100, the relative position of the electronic device 2000 and the fixed seat N is easy to change, resulting in the need to manually adjust the position of the electronic device 2000 multiple times, affecting the test efficiency, and the test consistency is low.

[0124] In some embodiments, please refer to Figure 5 , Figure 5 The structural schematic diagram of the clamping device 100 provided in some embodiments of the present application, the clamping device 100 includes a support part K1 and two oppositely arranged clamping parts K2, the electronic device 2000 can be supported on the support part K1 and fixed between the two clamping parts K2.

[0125] Specifically, each clamping part K2 includes a first limiting part K21 and two second limiting parts K22, thus, the two clamping parts K2 include two first limiting parts K21 and four second limiting parts K22. Both the first limiting parts K21 and the second limiting parts K22 are movable relative to the support part K1, and the direction of movement of the first limiting part K21 relative to the support K1 is perpendicular to the direction of movement of the second limiting parts K22. In this way, the first limiting parts K21 and the second limiting parts K22 can limit the electronic device 2000 from different directions.

[0126] In some embodiments, when the clamping device 100 fixes the electronic device 2000 and is used in the electromagnetic radiation performance test of the whole device, such as SAR testing, the support portion K1 and the clamping portion K2 of the clamping device 100 can both be made of non-metallic materials to avoid the clamping device 100 containing metal affecting the test results of the electromagnetic radiation performance of the whole device. For example, the support portion K1 and the clamping portion K2 can both be made of acrylic sheet.

[0127] Please refer to the following: Figure 5 and Figure 6 , Figure 6 for Figure 5 The diagram shows three different placement states of the clamping device 100 clamping the electronic device 2000. The clamping device 100 also includes a frame K3, and a support part K1 and a clamping part K2 are disposed on the frame K3. Figure 6 As shown in (a), the electronic device 2000 is in a vertical position. In this position, the two first limiting parts K21 can be clamped at both ends of the electronic device 2000 in the thickness direction, and the two second limiting parts K22 can be clamped at both ends of the electronic device 2000 in the width direction. Figure 6 As shown in (b), the electronic device 2000 is in a flat position. At this time, the two first limiting parts K21 can be clamped at both ends of the electronic device 2000 in the length direction, and the two second limiting parts K22 can be clamped at both ends of the electronic device 2000 in the width direction. Figure 6 As shown in (c), the support part K1 and the clamping part K2 can also rotate relative to the frame K3, so that the electronic device 2000, which is in a vertical position, forms a shape with the support part K1 and the clamping part K2 as shown in (c). Figure 6 In the oblique position shown in (c), the electronic device 2000 forms an acute angle with the horizontal plane on one side of its thickness direction.

[0128] It should be noted that the horizontal plane mentioned in this application refers to a plane perpendicular to the height direction of the clamping device 100.

[0129] However, in Figure 5When the length of the electronic device 2000 is greater than the maximum distance between the two first limiting portions K21, and / or when the width of the electronic device 2000 is greater than the maximum distance between the two second limiting portions K22, for example, when the electronic device 2000 is a tablet computer, or a folded mobile phone in an unfolded state, the electronic device 2000 will not be able to be placed inside the clamping portion K2, and can only be adhesively fixed on the top of the clamping device 100. In this way, the fixed position of the electronic device 2000 is unstable, and the position of the electronic device 2000 is prone to movement during the performance test, thereby affecting the test efficiency and causing low test consistency.

[0130] In order to be compatible with various types of test pieces, and to ensure the stability and accuracy of the test pieces, and to ensure the stability and accuracy of the test results, please refer to Figure 7 , Figures 7-8 The structure diagram of the clamping device 100 provided by some embodiments of the present application is shown in the figure. The clamping device 100 includes a first base 10, a bearing assembly 30, and a clamping assembly 40. The bearing assembly 30 is arranged on the first base 10, and the bearing assembly 30 and the first base 10 are arranged in a first direction L1. The clamping assembly 40 is arranged on the bearing assembly 30. For example, the first direction L1 can be the overall height direction of the clamping device 100.

[0131] The clamping assembly 40 on the first support plate 31 is used to clamp the electronic device 2000. Specifically, the clamping assembly 40 includes a first clamping piece 41 and a second clamping piece 42 arranged in a second direction L2. The first clamping piece 41 and the second clamping piece 42 are located on the side of the bearing assembly 30 away from the first base 10. The second direction L2 can be perpendicular to the first direction L1. The first clamping piece 41 and the second clamping piece 42 can respectively abut against opposite sides of the electronic device 2000, so that the electronic device 2000 can be clamped and fixed by the first clamping piece 41 and the second clamping piece 42. In this way, the electronic device 2000 can be stably fixed in the clamping assembly 40.

[0132] For example, the first clamping piece 41 and the second clamping piece 42 can both have a flat plate structure. In this way, it is beneficial to increase the contact area of the first clamping piece 41 and the second clamping piece 42 with the electronic device 2000, thereby further improving the clamping stability of the clamping assembly 40 to the electronic device 2000.

[0133] In some embodiments, the electronic device 2000 can be clamped within the clamping assembly 40 in different orientations, such as lying flat or standing vertically. Lying flat refers to a orientation in which the thickness direction of the electronic device 2000 is parallel to the first direction L1. In this lying flat orientation, the first clamping member 41 and the second clamping member 42 can be clamped at both ends of the electronic device 2000 along its length or width. Standing vertically refers to a orientation in which the width or length direction of the electronic device 2000 is parallel to the first direction L1. In this standing vertical orientation, the first clamping member 41 and the second clamping member 42 can be clamped at both ends of the electronic device 2000 along its thickness.

[0134] In some embodiments, please refer to Figure 8 , Figure 7 for Figure 8 The diagram shows the assembly of the clamping device 100 and the electronic device 2000. The first clamping member 41 can move relative to the support assembly 30 along the second direction L2. Specifically, the first clamping member 41 can move along the second direction L2 towards or away from the second clamping member 42 to adjust the distance between the first clamping member 41 and the second clamping member 42.

[0135] In this way, on the one hand, the clamping device 100 can be compatible with electronic devices 2000 of various sizes; on the other hand, the clamping assembly 40 can also stably fix the electronic devices 2000 in different placement states; and on yet another aspect, it can also conveniently clamp the electronic devices 2000 between the first clamping member 41 and the second clamping member 42, or remove the electronic devices 2000 from the clamping assembly 40.

[0136] For example, the first clamping member 41 can be moved relative to the supporting component 30 by an externally applied force. The externally applied force can be applied by a drive component or manually by an operator, as long as a pushing force can be applied to the first clamping member 41.

[0137] In other embodiments, the second clamping member 42 can also move relative to the supporting assembly 30 along the second direction L2. In this case, the first clamping member 41 and the second clamping member 42 can move closer to each other along the second direction L2 to fix the electronic device 2000 between the first clamping member 41 and the second clamping member 42. Similarly, the first clamping member 41 and the second clamping member 42 can move away from each other to remove the electronic device 2000.

[0138] The first clamping member 41 and the second clamping member 42 can be mirror-symmetrically arranged with reference to a reference plane, and the reference plane is located at a middle position of the first clamping member 41 and the second clamping member 42 along the second direction L2. In this way, the second clamping member 42 can have the same structure as the first clamping member 41, and the specific structure of the second clamping member 42 can be the same as that of the first clamping member 41, which will not be described herein.

[0139] In some embodiments, referring to Figure 7 , the bearing assembly 30 can also move relative to the first base 10 along the first direction L1, that is, the total height d0 of the clamping device 100 along the first direction L1 is adjustable. In this way, the clamping device 100 can lift or lower the electronic device 2000 clamped by the clamping assembly 40 to different positions to meet the test requirements of the electronic device 2000 at different heights.

[0140] Specifically, in some embodiments, d0 satisfies greater than or equal to X1 and less than or equal to X2, so that the bearing assembly 30 has the lowest height and the highest height along the first direction L1, and the bearing assembly 30 can drive the electronic device 2000 to be lifted or lowered to different positions along the first direction L1. For example, the electronic device 2000 can be placed at the geometric center position of the test device to facilitate the performance test of the electronic device 2000 by the test device.

[0141] In some embodiments, X1 is greater than or equal to 15 cm and less than or equal to 40 cm, and X2 is greater than or equal to 50 cm and less than or equal to 70 cm. For example, X1 can be 34 cm, and X2 can be 66 cm. In this way, the total height d0 of the clamping device 100 is adjusted between 34 cm and 66 cm.

[0142] In other embodiments, X1 can also be 20 cm, 25 cm, 30 cm, 35 cm, 40 cm, etc., and X2 can also be 50 cm, 55 cm, 60 cm, 65 cm, etc. In this way, the total height of the clamping device 100 can be designed according to actual requirements to adjust the position of the electronic device 2000 along the first direction L1.

[0143] In some embodiments, referring to Figure 9 and Figure 9 , Figure 7 is Figure 9 another assembly diagram of the clamping device 100 and the electronic device 2000 shown in FIG. 1, and the bearing assembly 30 can rotate relative to the first base 10. The first support plate 31 can drive the clamping assembly 40 thereon to rotate around multiple different direction rotation axes to change the placement state of the electronic device 2000 clamped in the clamping assembly 40.

[0144] Specifically, in some embodiments, the bearing assembly 30 can rotate around a first rotation axis, which is parallel to the first direction L1. For example, when the electronic device 2000 is placed in the clamping assembly 40 in a vertical state, the bearing assembly 30 can rotate around the first rotation axis, so that the surface of the electronic device 2000 in the thickness direction can face different directions.

[0145] In other embodiments, the bearing assembly 30 can rotate around a second rotation axis, which is parallel to the second direction L2, and the opposite ends of the bearing assembly 30 in the third direction L3 form a first end and a second end, respectively. The third direction L3 is perpendicular to the first direction L1 and the second direction L2. The bearing assembly 30 can rotate around the second rotation axis to a state in which one of the first end and the second end is close to the first base 10 in the first direction L1, and the other is away from the second base 20 in the first direction L1.

[0146] In yet other embodiments, please refer to Figure 3 , the bearing assembly 30 can rotate around a third rotation axis, which is parallel to the third direction L3. The opposite ends of the bearing assembly 30 in the second direction L2 form a third end and a fourth end. The bearing assembly 30 can rotate around the third rotation axis to a state in which one of the third end and the fourth end is close to the first base 10 in the first direction L1, and the other is away from the second base 20 in the first direction L1. In this way, the clamping device 100 can meet the various placement states of the electronic device 2000 to meet the placement requirements of the test device for the electronic device 2000 under different test conditions, so as to test the performance of the electronic device 2000 under various test conditions.

[0147] In other embodiments, the rotation axis can also be in other directions, which are not limited in the present application.

[0148] It can be understood that, since the electronic device 2000 can be stably fixed in the clamping assembly 40, the relative position of the electronic device 2000 and the clamping assembly 40 will not change during the rotation of the clamping assembly 40 relative to the first base 10. In this way, on the one hand, it can ensure that the test results under the same conditions are relatively stable, which is conducive to improving the consistency and accuracy of the test results; on the other hand, during the test, the electronic device 2000 can be adjusted to the target placement state conveniently and quickly, which is relatively Figure 4 and Figures 1-4 The clamping device 100 in the embodiment does not need to manually adjust the relative position of the electronic device 2000 and the clamping assembly 40 multiple times, thereby saving the time for adjusting the placement state of the electronic device 2000, which is conducive to improving the test efficiency.

[0149] In some embodiments, the carrying assembly 30 can be movable along the first direction L1 relative to the first base 10 and rotatable relative to the first base 10, and the clamping assembly 40 on the carrying assembly 30 can be adapted to different electronic devices 2000 of different sizes, and the carrying assembly 30 can also meet the requirements of different heights and different angles of the electronic devices 2000. During the movement of the carrying assembly 30, the electronic devices 2000 are fixed by the clamping assembly 40, so as to avoid the position deviation of the electronic devices 2000 during the movement, thereby ensuring the test accuracy and improving the consistency of the test results when the test device tests the performance of the electronic devices 2000.

[0150] It can be understood that, in other embodiments, the carrying assembly 30 can only be rotatable relative to the first base 10 and cannot be movable along the first direction L1 relative to the first base 10. Alternatively, the carrying assembly 30 can only be movable along the first direction L1 relative to the first base 10 and cannot be rotatable relative to the first base 10.

[0151] In some embodiments, please refer to Table 1, which shows the test results of the electronic devices 2000 clamped by the clamping device 100 (defined as O1) in the embodiment shown in Figures 7-9 and the electronic devices 2000 clamped by the clamping device 100 (defined as NE) in the embodiment shown in Figure 10a . When the test device performs the OTA test on the electronic devices 2000, the test comparison data of different operators under the same working conditions is shown in Table 1.

[0152] Table 1

[0153]

[0154]

[0155] Please refer to Figure 10a , Figure 10a , which is a comparison diagram of the test consistency of two different operators under the same working conditions according to the test results shown in Table 1. In Figures 1-4 , the abscissa is the serial number in Table 1, and the ordinate is the difference, i.e., the value of |A-B| in Table 1. It can be seen that, when the clamping device 100 in the embodiment shown in Figures 7-9 is used, the maximum deviation of the test consistency of different operators under the same working conditions can reach 0.58 dBm. When the clamping device 100 in the embodiment shown in Figures 5-6 is used, the maximum deviation of the test consistency of different operators under the same working conditions can reach 0.58 dBm.The clamping device 100 in the illustrated embodiment has a maximum consistency deviation of 0.13dBm under the same working conditions between different operators. That is, the test deviation is basically <0.13dBm, which greatly reduces the test deviation, improves the accuracy and consistency of the detection of electronic equipment 2000, helps to prevent the missed detection of defective products, and helps to improve product quality.

[0156] In some embodiments, please refer to Table 2, which provides the usage... Figures 7-9 The clamping device 100 (defined as O1) in the illustrated embodiment clamps the electronic device 2000, and employs... Figure 10b The clamping device 100 (defined as NE) in the illustrated embodiment, and the electronic device 2000, are compared with test data from different operators under multiple identical working conditions during OTA testing of the electronic device 2000 by the testing device:

[0157] Table 2

[0158]

[0159]

[0160] Please see Figure 10b , Figure 10b To compare the consistency of tests conducted by two different operators under the same working conditions, based on the test results shown in Table 2, Figures 1-4 In the diagram, the horizontal axis represents the serial number in Table 2, and Y represents the difference, i.e., the |AB| value in Table 2. It can be seen that using... Figures 7-9 The clamping device 100 in the illustrated embodiment, under the same working conditions, showed a maximum consistency deviation of 0.37 W / kg in test results from different operators. However, using... Figure 11a The clamping device 100 in the illustrated embodiment has a maximum test consistency deviation of 0.16dBm under the same working conditions, which is basically <0.16dBm. This significantly reduces the test deviation, improves the accuracy and consistency of the detection of electronic equipment 2000, helps prevent the omission of defective products, and helps improve product quality.

[0161] In some embodiments, please refer to Figure 11a , Figure 7 for Figure 11b The schematic diagram of the clamping assembly 40 of the clamping device 100 shows that the surface of the first clamping member 41 facing the second clamping member 42 is provided with a shock-absorbing buffer layer 47. Similarly, the surface of the second clamping member 42 facing the first clamping member 41 can also be provided with a shock-absorbing buffer layer 47. In this way, when the first clamping member 41 and the second clamping member 42 clamp the test piece, the shock-absorbing buffer layer 47 can absorb and cushion the shock, thus preventing the electronic device 2000 from being scratched.

[0162] Exemplarily, the material of the shock-absorbing buffer layer 47 can be foam, rubber, silica gel, etc. These materials all have certain elastic deformation capability, which can improve the buffering performance of the shock-absorbing buffer layer 47.

[0163] In some embodiments, the shock-absorbing buffer layer 47 can be adhesively connected with the first clamping member 41. The specific connection manner of the second clamping member 42 with the shock-absorbing buffer layer 47 can refer to the connection manner of the first clamping member 41 with the shock-absorbing buffer layer 47, which will not be described herein again.

[0164] In some embodiments, please refer to Figure 11b , Figure 7 For Figure 11a the structure schematic view of the first part of the clamping device 100, the bearing assembly 30 includes a first support plate 31 having a first surface 31a and a second surface 31b opposite to each other, and the first clamping member 41 and the second clamping member 42 are both located on the side facing the first surface 31a, and the second surface 31b faces away from the clamping assembly 40. In this way, the electronic device 2000 can be supported on the first surface 31a and clamped by the first clamping member 41 and the second clamping member 42, so as to realize multi-directional positioning of the electronic device 2000.

[0165] In some embodiments, please refer to Figure 11b and Figure 11b , a clamping space 46 is formed between the first clamping member 41 and the second clamping member 42, and the clamping space 46 includes a first opening 461 and a second opening 462. The first opening 461 is formed on the side of the clamping space 46 away from the first surface 31a, that is, the first opening 461 faces the first surface 31a in the first direction L1. The second opening 462 is formed on at least one end of the clamping space 46 in the third direction L3, so that at least one end of the clamping space 46 in the third direction L3 is open. Specifically, one end of the clamping space 46 in the third direction L3 is open, or both ends of the clamping space 46 in the third direction L3 are open.

[0166] In this way, the electronic device 2000 located in the clamping space 46 can be stretched out from one side of the first opening 461 or from one side of the second opening 462, so that the clamping assembly 40 can clamp the electronic device 2000 even if the size of the electronic device 2000 is large.

[0167] Exemplarily, the first part of the tablet computer can be located in the clamping space 46, the second part can be stretched out from one side of the first opening 461, and the third part can be stretched out from one side of the second opening 462. In this way, the clamping of the first part of the tablet computer can realize the fixation of the whole tablet computer with large size.

[0168] In some embodiments, please continue to refer toFigure 12 The distance d1 of the first clamping member 41 and the second clamping member 42 in the second direction L2 is greater than 0 and less than or equal to X3 cm, for example, X3 can be greater than or equal to 18 cm and less than or equal to 50 cm, to adapt to the clamping needs of electronic devices 2000 of different specifications. For example, X3 can be 18 cm, 20 cm, 26 cm, 30 cm, 40 cm, 50 cm, etc.

[0169] In some embodiments, the length of the straight bar mobile phone is between 13 cm and 15 cm, the length of the tablet computer and the width of the folded mobile phone in the unfolded state are greater than 15 cm, and X3 is set to be greater than or equal to 18 cm and less than or equal to 50 cm, so that the clamping device 100 can be compatible with various types of electronic devices 2000 such as straight bar mobile phones, tablet computers, and folded mobile phones in the unfolded state.

[0170] For example, the clamping assembly 40 has a first clamping state, when the clamping assembly 40 is in the first clamping state, the distance d1 of the first clamping member 41 and the second clamping member 42 in the second direction L2 is greater than 15 cm and less than or equal to 50 cm, that is, X3 is equal to 50 cm, so that when the clamping assembly 40 is in the first clamping state, it can adapt to electronic devices 2000 with a length greater than 15 cm.

[0171] In other embodiments, the clamping assembly 40 also has a second clamping state, when the clamping assembly 40 is in the second clamping state, the distance d1 of the first clamping member 41 and the second clamping member 42 in the second direction L2 is greater than 0 cm and less than or equal to 15 cm, so that the clamping assembly 40 can clamp a straight bar mobile phone in the second clamping state, and can clamp various large-size electronic devices 2000 such as unfolded folded mobile phones and tablet computers in the first clamping state.

[0172] In some embodiments, if it is necessary to place an electronic device 2000 with a length of 24 cm and a width of 15 cm horizontally, the electronic device 2000 can be placed on the first surface 31a of the first support plate 31 in a direction in which the length is parallel to the second direction L2. In this way, the first clamping member 41 and the second clamping member 42 are close to each other and abut against opposite ends of the electronic device 2000 in the length direction, so that the electronic device 2000 is fixed. It can be understood that at this time, the two ends of the electronic device 2000 in the width direction can be completely located in the clamping space 46, or can extend out of the clamping space 46 through the second opening 462.

[0173] In other embodiments, please refer to Figure 12 , Figure 11b For Figure 11bThe first local part shown in the exploded structural schematic view, the size d2 of the first clamping member 41 in the third direction L3 is greater than 5 cm and less than or equal to 26 cm, for example, the size of the first clamping member 41 in the third direction L3 can be 5 cm, 10 cm, 12 cm, 14 cm, 16 cm, 18 cm, 20 cm, 22 cm, 24 cm, 26 cm, etc. In this way, the clamping assembly 40 can be adapted to various types of electronic devices 2000, which can improve the compatibility of the clamping device 100, thereby expanding the application range of the clamping device 100. At the same time, it is beneficial to increase the contact area of the first clamping member 41 and the second clamping member 42 with the electronic device 2000, thereby facilitating further improvement of the clamping stability of the clamping assembly 40 to the electronic device 2000.

[0174] In some embodiments, the minimum width of the electronic device 2000 such as a mobile phone, a tablet computer, etc. is 5-10 cm, and the maximum length is 13-25 cm. Therefore, when the size d2 of the first clamping member 41 in the third direction L3 is greater than 5 cm and less than or equal to 26 cm, the clamping assembly 40 can clamp various types of electronic devices 2000. At the same time, it is beneficial to increase the contact area of the first clamping member 41 and the second clamping member 42 with the electronic device 2000, thereby facilitating further improvement of the clamping stability of the clamping assembly 40 to the electronic device 2000.

[0175] In some embodiments, please refer to Figure 12 and Figure 12 The size d3 of the first clamping member 41 in the first direction L1 is greater than 0 and less than or equal to 10 cm, for example, the size of the first clamping member 41 in the first direction L1 can be 3 cm, 4 cm, 5 cm, 6 cm, 7 cm, 8 cm, 9 cm, 10 cm, etc. Further, the size d3 of the first clamping member 41 in the first direction L1 is greater than or equal to 5 cm and less than or equal to 10 cm, so that the clamping assembly 40 can be adapted to electronic devices 2000 with various lengths or widths.

[0176] For example, the size of the first clamping member 41 in the first direction L1 can be set to 10 cm, which is beneficial to increase the size of the clamping space 46 in the clamping assembly 40 in the first direction L1 (i.e. the depth of the clamping space 46). It is beneficial to increase the size of the electronic device 2000 inserted into the clamping space 46, thereby facilitating the avoidance of the electronic device 2000 from sliding out of the clamping space 46.

[0177] For example, if it is necessary to place an electronic device 2000 with a length of 20 cm vertically, at this time the clamping assembly 40 can clamp 10 cm along the length direction of the electronic device, so that the clamping assembly 40 can stably clamp the electronic device 2000, and it is beneficial to improve the force uniformity of the first clamping member 41 and the second clamping member 42.

[0178] In some embodiments, the second clamping member 42 can have the same size as the first clamping member 41. For details, please refer to the description of the first clamping member 41 above.

[0179] In some embodiments, please refer to Figure 12 , the first support plate 31 is provided with a first guide structure 311 extending along the second direction L2, and the clamping assembly 40 comprises a first matching structure 43 connected with the first clamping member 41. The first matching structure 43 is in sliding fit with the first guide structure 311, so that the first clamping member 41 can move along the second direction L2 under the guidance of the first guide structure 311. This can effectively prevent the moving direction of the first clamping member 41 from deviating, and can improve the stability of the moving process of the first clamping member 41.

[0180] The first guide structure 311 and the first matching structure 43 form a first guide protrusion and a first guide groove in sliding fit, so as to realize the stable movement of the first clamping member 41 along the second direction L2 relative to the first support plate 31.

[0181] For example, in the embodiment shown in Figure 12 , the first guide structure 311 is a first guide groove. In this case, the first guide groove can penetrate the first surface 31a and the second surface 31b of the first support plate 31, or the first guide groove can only penetrate the first surface 31a without penetrating the second surface 31b.

[0182] In some embodiments, the clamping assembly 40 further comprises a first reinforcing rib 45 provided on the side of the first clamping member 41 away from the second clamping member 42. The first reinforcing rib 45 is used to strengthen the structural strength of the first clamping member 41. For example, the first reinforcing rib 45 and the first matching structure 43 form an L-shaped structure.

[0183] In some embodiments, the first reinforcing rib 45 and the first matching structure 43 are integrally formed. In this way, the assembly steps of the first reinforcing rib 45 and the first matching structure 43 can be omitted, and the connection strength of the first reinforcing rib 45 and the first matching structure 43 can be improved.

[0184] In some embodiments, please refer to Figure 13 and Figure 13 , Figure 11b for Figure 13The first partial cross-sectional structure diagram of the clamping device 100 is shown, the clamping device 100 further comprises a first driving assembly 50, the first driving assembly 50 is connected with the first clamping piece 41, and the first driving assembly 50 is used for applying a pushing force to the first clamping piece 41, so that the first clamping piece 41 moves relative to the first support plate 31. In this way, the position of the first clamping piece 41 can be accurately controlled by the first driving assembly 50, so that the position of the clamping assembly 40 to the electronic device 2000 is more accurate and standardized.

[0185] Please refer to Figure 14 and Figure 14 , Figure 13 for Figure 13 The first driving assembly 50 cooperates with the first clamping piece 41 in the structure diagram, in some embodiments, the first driving assembly 50 comprises a first driving rod 51, the first driving rod 51 extends along the second direction L2, the first driving rod 51 is in transmission connection with the first clamping piece 41 to drive the first clamping piece 41 to move along the second direction L2, wherein the axis of the first driving rod 51 is parallel to the second direction L2, so that the first clamping piece 41 and the first driving rod 51 form a transmission from circular motion to linear motion.

[0186] In some embodiments, please refer to Figure 14 and Figure 12 , the bearing assembly 30 further comprises a second support plate 32 and a fixing piece 33, the second support plate 32 is arranged between the first base 10 and the first support plate 31, and the second support plate 32 is arranged along the first direction L1 and spaced from the first support plate 31, so that the first support plate 31 and the second support plate 32 form a first containing space 34, and the fixing piece 33 is fixed between the first support plate 31 and the second support plate 32.

[0187] The fixing piece 33 can support the first driving rod 51. The fixing piece 33 is fixed between the first support plate 31 and the second support plate 32, the first driving rod 51 is located in the first containing space 34 and is rotatably connected to the fixing piece 33, when the first driving rod 51 is stressed, the first driving rod 51 can rotate along its own axis relative to the fixing piece 33 in the first containing space 34. In order to stably support the first driving rod 51, the fixing piece 33 can be two, and the two fixing pieces 33 can be arranged along the axial direction of the first driving rod 51.

[0188] Please refer to Figure 13 and Figure 14In some embodiments, the fixing member 33 and the first clamping member 41 can be connected by means of the first matching structure 43. In this case, the first guide structure 311 is formed as a first guide groove penetrating through the first surface 31a and the second surface 31b, so that the first matching structure 43 extends into the first accommodating space 34 through the first guide groove and is connected with the fixing member 33.

[0189] In this way, the first matching structure 43 can not only realize the guide matching with the first guide structure 311, but also serve as a transmission connection structure of the first driving assembly 50 and the first clamping member 41, so that other structures for connecting the first driving assembly 50 and the first clamping member 41 are not needed, which is conducive to simplifying the structure of the clamping device 100.

[0190] It can be understood that, in other embodiments, the first driving assembly 50 and the first clamping member 41 can also be connected by means of other structures other than the first matching structure 43, which is not limited in the present application.

[0191] In some embodiments, please continue to refer to Figure 15a The clamping assembly 40 further comprises a first connecting member 44, and the first clamping member 41 is in transmission connection with the first driving rod 51 through the first connecting member 44. It should be noted that transmission connection means that the movement of one of the two connected components can be transmitted to the other component, and the connection mode between the two components includes but is not limited to at least one of the following connection modes: rotary connection, sliding connection, gear meshing transmission connection, chain wheel transmission connection, cam mechanism transmission connection, fixed connection, etc. In this way, the first driving rod 51 drives the first connecting member 44 to move along the second direction L2 to drive the first clamping member 41 to move.

[0192] For example, the first connecting member 44 and the first driving rod 51 can cooperate to form a screw-nut transmission structure, please refer to Figure 15b and Figure 15a , Figure 14 for Figure 15b the matching cross-sectional structure of the first connecting member 44 and the first driving rod 51 of the first driving assembly 50 in FIG. 4, Figure 15a for Figure 16 the enlarged view of A in FIG. 4, the first driving rod 51 is a screw rod structure with external threads, the first connecting member 44 is sleeved on the outer periphery of the first driving rod 51 and forms a nut structure with internal threads, and the first connecting member 44 and the first driving rod 51 are in threaded cooperation, so that when the first driving rod 51 moves circumferentially, the first connecting member 44 and the first clamping member 41 move linearly along the second direction L2. For example, the first connecting member 44, the first matching structure 43 and the first clamping member 41 are connected, so that when the first connecting member 44 moves, the first matching structure 43 and the first clamping member 41 can move synchronously with the first connecting member 41.

[0193] In other embodiments, the first connecting member 44 and the first driving rod 51 can also be drivingly connected through a belt, a chain, a gear or other transmission structure, which will not be listed one by one herein.

[0194] In some embodiments, please continue to refer to Figure 16 , Figure 11b To Figure 16 the schematic view of the three-dimensional structure after hiding the first support plate 31 in the middle, the second support plate 32 is provided with a third guide structure 321 extending along the second direction L2, and the first connecting member 44 is provided with a third matching structure 441 which is slidingly matched with the third guide structure 321. In this way, under the guidance of the third guide structure 321, the third matching structure 441 drives the first connecting member 44 to move along the second direction L2, avoiding the movement direction of the first connecting member 44 from deviating.

[0195] Specifically, the third guide structure 321 and the third matching structure 441 can form a guide protrusion and a second guide groove respectively. For example, the third guide structure 321 can form a second guide groove which does not penetrate through the second support plate 32 and has an opening facing the first connecting member 44. In this way, on the one hand, it is beneficial to avoid the third guide structure 321 from penetrating out from the side of the second support plate 32 away from the first support plate 31, thereby avoiding the interference between the second support plate 32 and other structures (such as the second connecting member 72 below) of the clamping device 100. On the other hand, it is also beneficial to improve the structural strength of the second support plate 32.

[0196] Of course, it can be understood that in other embodiments, the third guide structure 321 can also be formed as a second guide groove penetrating through the second support plate 32.

[0197] In order to realize the circumferential rotation of the first driving rod 51 around its own circumference, it is necessary to set up corresponding structures to transmit the circumferential rotation force so that the first driving rod 51 rotates circumferentially. In one of the embodiments, the first driving assembly 50 further comprises a first handle 52 which is fixedly connected with the first driving rod 51. The user can make the first handle 52 rotate and drive the first driving rod 51 to rotate by applying an external force. In other embodiments, other structures can also be used for transmission.

[0198] In some embodiments, please refer to Figure 16The first handle 52 comprises a holding portion 521 and a connecting portion 522, the holding portion 521 is fixed on the connecting portion 522, and an axial end of the first driving rod 51 is fixedly connected with the connecting portion 522, and the holding portion 521 is spaced apart from the first driving rod 51. In this way, the operator can hold the holding portion 521 to exert a force on the holding portion 521, so that the holding portion 521 rotates, and the connecting portion 522 and the first driving rod 51 rotate together with the holding portion 521, which is beneficial to reduce the operation difficulty and improve the test efficiency.

[0199] In some embodiments, the first driving assembly 50 can comprise two, for example, in Figure 17 In some embodiments, the first driving rod 51 and the first handle 52 each comprise two, and at this time, the two first driving assemblies 50 can drive the first clamping part 41 and the second clamping part 42 to move along the second direction L2 respectively, so that the movement of the first clamping part 41 along the second direction L2 and the movement of the second clamping part 42 along the second direction L2 are independent of each other. In this way, the first clamping part 41 and the second clamping part 42 are mutually reserved, when the first clamping part 41 fails to move, the second clamping part 42 can be controlled to move alone by the first driving assembly 50, so as to improve the reliability of the clamping device 100.

[0200] It can be understood that the two first driving assemblies 50 can share the fixing part 33. The driving connection mode of the first driving assembly 50 and the second clamping part 42 can refer to the connection mode of the first driving assembly 50 and the first clamping part 41 described above, which will not be described here.

[0201] In some embodiments, please refer to Figure 17 , Figure 7 As shown in Figure 7 FIG. 6 is an exploded structural schematic view of a second part of the clamping device 100, the clamping device 100 comprises a second driving assembly 60, the second driving assembly 60 is used for driving the bearing assembly 30 to rotate relative to the first base 10, so that the rotation angle of the clamping assembly 40 can be accurately controlled by the second driving assembly 60, and then the rotation angle of the electronic device 2000 can be accurately controlled.

[0202] In some embodiments, the second driving assembly 60 can drive the bearing assembly 30 to rotate around the third direction L3, for example, the bearing assembly 30 can rotate around the third direction L3 by an angle greater than 0 and less than or equal to 60 degrees, so that the included angle between the electronic device 2000 and the horizontal plane can be changed, so that the placement requirements of the electronic device 2000 by the test device under different test conditions can be met, and the performance of the electronic device 2000 under various test conditions can be tested.

[0203] In some embodiments, the total height d4 of the load bearing assembly 30 formed by the first support plate 31, the second support plate 32 and the fixing member 33 in the first direction L1 can be 18cm-27cm, for example, d4 can be 18cm, 20cm, 22cm, 24cm, 26cm, 27cm, etc.

[0204] In some other embodiments, the total length of the load bearing assembly 30 formed by the first support plate 31, the second support plate 32 and the fixing member 33 in the second direction L2 can be 45cm-55cm, and the total width in the third direction L3 can be 40cm-50cm. For example, d4 can be 22cm, the total length of the load bearing assembly 30 formed by the first support plate 31, the second support plate 32 and the fixing member 33 in the second direction L2 can be 50cm, and the total width in the third direction L3 can be 46.8cm, so as to ensure that the first accommodating space 34 is sufficient to accommodate the first driving assembly 50, while ensuring that the size of the load bearing assembly 30 is not too large, avoiding interference between the load bearing assembly 30 and other structures when rotating.

[0205] Specifically, please refer to Figure 17 and Figure 17 The clamping device 100 further comprises a third support plate 71, which is located between the load bearing assembly 30 and the first base 10 as a load bearing structure of the second driving assembly 60, and the second driving assembly 60 is arranged on the third support plate 71, so that the third driving assembly 80 is located between the load bearing assembly 30 and the third support plate 71 to play a supporting and driving role.

[0206] In some embodiments, please refer to Figure 18 The second driving assembly 60 comprises a first driving unit 61, and the clamping device 100 comprises a second connecting member 72, which is fixed to the side surface of the load bearing assembly 30 close to the third support plate 71, and the first driving unit 61 is used to drive the second connecting member 72 to rotate, so as to realize the rotation of the load bearing assembly 30 and the clamping assembly 40 by the first driving unit 61.

[0207] Specifically, please refer to 18, Figure 17 for Figure 18The second drive assembly 60 and the second connecting member 72 are shown in an exploded view. In some embodiments, the second drive assembly 60 further comprises a second drive rod 62, the second drive rod 62 is fixed to the second connecting member 72, the first drive unit 61 is configured to drive the second drive rod 62 to rotate about its own axis, the rotation of the second drive rod 62 drives the second connecting member 72 to rotate. The axis of the second drive rod 62 can be the first rotation axis, the second rotation axis, or the third rotation axis, etc. described above. In this way, the second connecting member 72 can rotate about the first direction L1, or the second connecting member 72 can rotate about the second direction L2, or the second connecting member 72 can rotate about the third direction L3. For example, in the embodiment shown in the figure, the axis of the second drive rod 62 is parallel to the third direction L3. Figure 17 In the embodiment shown in the figure, the axis of the second drive rod 62 is parallel to the third direction L3.

[0208] In some embodiments, please refer to Figure 18 and Figure 17 The first drive unit 61 comprises a first transmission member 611, a second transmission member 612, and a third transmission member 613. The first transmission member 611 is configured to rotate about its own axis, and the first transmission member 611 is in transmission connection with the second transmission member 612, the second transmission member 612 is in transmission connection with the third transmission member 613, and the third transmission member 613 is fixed to the second drive rod 62. In this way, when the first transmission member 611 rotates about its own axis, it can drive the second transmission member 612 to move, and then drive the third transmission member 613 to rotate about the axis of the second drive rod 62 through the second transmission member 612, so as to realize the rotation of the second drive rod 62 about its own axis. The second drive rod 62 can drive the second connecting member 72 and the bearing assembly 30 to rotate synchronously, thereby realizing the transmission of the movement of the first drive unit 61 to the second connecting member 72.

[0209] The first transmission member 611 comprises a third drive rod 6111. It can be understood that the rotation power source of the third drive rod 6111 can have various forms. In some embodiments, the second drive assembly 60 further comprises a second handle 63, the second handle 63 is connected to the third drive rod 6111, and the user can drive the second handle 63 to rotate circumferentially and drive the third drive rod 6111 to rotate about its own axis by applying external force.

[0210] For the specific structure of the second handle 63, please refer to the detailed description of the first handle 52 in the above, which will not be repeated here.

[0211] The movement of the second transmission member 612 can be linear movement, circular movement, etc. In some embodiments, the second transmission member 612 comprises a first rack 6121, the third transmission member 613 comprises a first gear 6131, the first gear 6131 meshes with the first rack 6121 and is connected with the second driving rod 62. For example, the first gear 6131 can be connected with one axial end of the second driving rod 62, or the first gear 6131 can be sleeved on the second driving rod 62 and fixedly connected with the second driving rod 62. The second driving rod 62 rotates around its own axis to drive the first rack 6121 to move linearly, and the first rack 6121 moves linearly under the drive of the third driving rod 6111, thereby driving the first gear 6131 to rotate around the axis of the second driving rod 62.

[0212] Specifically, the linear movement direction of the first rack 6121 can be the second direction L2 or the third direction L3. When the first rack 6121 moves along the second direction L2, the axial direction of the second driving rod 62 is the third direction L3. Similarly, when the first rack 6121 moves along the third direction L3, the axial direction of the second driving rod 62 is the second direction L2.

[0213] In one of the embodiments, please refer to Figure 18 and Figure 17 The second transmission member 612 further comprises a third connecting member 6122, which is arranged between the first rack 6121 and the third support plate 71. The third driving rod 6111 cooperates with the third connecting member 6122. When the third driving rod 6111 rotates around its own axis, it can drive the third connecting member 6122 and the first rack 6121 connected with the third connecting member 6122 to produce linear movement, thereby realizing the transmission between the second transmission member 612 and the first transmission member 611.

[0214] For example, the third driving rod 6111 can be in threaded cooperation with the third connecting member 6122. The third driving rod 6111 is a screw rod structure with external threads, and the third connecting member 6122 is sleeved on the outer periphery of the third driving rod 6111 and forms a nut structure with internal threads. The third connecting member 6122 and the first driving rod 51 form a screw nut transmission structure, thereby realizing the linear movement of the third connecting member 6122 when the third driving rod 6111 rotates.

[0215] In some embodiments, the third connecting member 6122 can be a block structure. In this way, the third connecting member 6122 not only realizes the transmission connection between the third driving rod 6111 and the first rack 6121, but also can lift the first rack 6121, thereby facilitating the connection between the first rack 6121 and the first gear 6131.

[0216] In some embodiments, please refer to Figure 19 andFigure 19 , Figure 17 For Figure 18 The assembly schematic view of the second driving assembly 60 of the clamping device 100 and the third connecting piece 6122, the third support plate 71 is provided with a second guide structure 73, and the third connecting piece 6122 has a second matching structure 6122a, the second matching structure 6122a and the second guide structure 73 are in sliding fit, so that the moving direction of the third connecting piece 6122 is prevented from deviating.

[0217] In some embodiments, the second guide structure 73 includes a first guide block 731 and a second guide block 732 which are spaced apart in the third direction L3, and at least part of the third connecting piece 6122 is located between the first guide block 731 and the second guide block 732. The first guide block 731 and the second guide block 732 are both formed with a third guide groove, and the second matching structure 6122a is formed as a guide protrusion, the third guide groove can extend along the second direction L2, so that the third connecting piece 6122 can slide along the second direction L2 relative to the third support plate 71. It can be understood that the extension direction of the third guide groove, the extension direction of the first rack 6121 and the movement direction of the first rack 6121 are parallel.

[0218] In other embodiments, guide protrusions can also be formed on the first guide block 731 and the second guide block 732, and the second matching structure 6122a is formed as a third guide groove. In addition, the third guide structure 321 can also only include one of the first guide block 731 and the second guide block 732.

[0219] In other embodiments, the first guide block 731 and the second guide block 732 can also be spaced apart along the second direction L3, at this time the third guide groove extends along the third direction L3.

[0220] Taking the movement of the first rack 6121 along the second direction L2 as an example, please refer to Figure 19 and Figure 20 In some embodiments, the third connecting piece 6122 can include a first connecting block 6123 and a second connecting block 6124, the first connecting block 6123 is arranged between the first rack 6121 and the second connecting block 6124, the third driving rod 6111 is connected to the second connecting block 6124, and the size of the first connecting block 6123 in the third direction L3 is smaller than the size of the second connecting block 6124 in the third direction L3, so that the gap between the first connecting block 6123 and the third guide structure 321 in the third direction L3 is increased, and the third connecting piece 6122 is prevented from swinging along the third direction L3 during the movement of the first rack 6121, so as to avoid large-area collision interference with the third guide structure 321. In other embodiments, the third connecting piece 6122 can also be made into an integral block structure, and the surfaces on the opposite sides of the third connecting piece 6122 in the third direction L3 are locally concave.

[0221] In some embodiments, please refer to Figure 20 , Figure 7 for Figure 20 The clamping device 100 shown is another structural schematic diagram from another perspective. The clamping device 100 also includes a third drive component 80, which is located between the first base 10 and the support component 30. The third drive component 80 is used to drive the support component 30 to move along the first direction L1. In this way, the position of the clamping component 40 in the first direction L1 can be precisely controlled by the third drive component 80.

[0222] In the above embodiments of this application, a first driving component 50, a second driving component 60, and a third driving component 80 are provided to achieve comprehensive position adjustment of the clamping component 40. The first driving component 50 drives the clamping component 40 to clamp the electronic device 2000. The second driving component 60 drives the clamping component 40 to rotate and change the placement state of the electronic device 2000. The third driving component 80 drives the clamping component 40 to move along the first direction L1 to change the height of the electronic device 2000 in the first direction L1. When the testing device performs performance testing on the electronic device 2000, the position adjustment requirements of the electronic device 2000 under different testing conditions can be met by adjusting the clamping device 100.

[0223] In one embodiment, the third drive assembly 80 is disposed between the third support plate 71 and the first base 10, so that the third drive assembly 80 drives the third support plate 71, the second drive assembly 60, the first drive assembly 50, the first connector 44, the bearing assembly 30 and the clamping assembly 40 to move together along the first direction L1.

[0224] In one embodiment, please continue to refer to Figure 20 The third drive assembly 80 includes a fourth drive member 81 and a fifth drive member 82 connected by transmission. The fifth drive member 82 is fixed relative to the bearing assembly 30. The fourth drive member 81 can rotate to drive the fifth drive member 82 to move along the first direction L1. In this way, the fifth drive member 82 can drive the bearing assembly 30 to rotate along the first direction L1, realizing the transmission from circular rotation to linear motion.

[0225] In some embodiments, please refer to Figure 21 and Figure 21 , Figure 20 for Figure 20The partial sectional structure schematic diagram of the shown clamping device 100, the fourth transmission member 81 comprises a fixedly connected fourth driving rod 811 and a second gear 812, the fifth transmission member 82 comprises a third gear 821, the second gear 812 is engaged with the third gear 821, the third driving assembly 80 further comprises a first support column 84, one end of the first support column 84 is fixed to the first base 10, the third gear 821 is threadedly connected with the end of the first support column 84 away from the first base 10, the fourth driving rod 811 can rotate around its own axis to drive the third gear 821 to rotate relative to the first support column 84 and move along the first direction L1.

[0226] The rotation axis directions of the second gear 812 and the third gear 821 are perpendicular, in some embodiments, the fourth driving rod 811 and the second gear 812 can rotate around the third direction L3 to drive the third gear 821 to rotate around the first direction L1, since the third gear 821 is threadedly connected with the first support column 84, the third gear 821 moves along the first direction L1 away from the first base 10 while rotating around the circumference, so as to increase the total height of the clamping device 100 in the first direction L1. The third gear 821 can also move along the first direction L1 towards the first base 10 while rotating around the circumference, so as to reduce the total height of the clamping device 100 in the first direction L1.

[0227] In other embodiments, the fifth transmission member 82 can also comprise a second rack extending along the first direction L1, the second rack is driven by the second gear 812 to move along the first direction L1 relative to the first support column 84 to change the position of the clamping assembly 40 in the first direction L1.

[0228] It can be understood that the third gear 821 is threadedly connected with the end of the first support column 84 away from the first base 10, that is, the end of the first support column 84 away from the first base 10 has external threads and is fixedly arranged relative to the first base 10, the third gear 821 is sleeved on the circumference of the first support column 84 and forms a nut structure with internal threads, when the third gear 821 rotates around the circumference under the action of force, linear motion of the third gear 821 is realized.

[0229] In other embodiments, the fourth transmission member 81 and the fifth transmission member 82 can also be drivingly connected through a belt transmission or the like, which is not limited in the present application.

[0230] In order to realize the circumferential rotation of the fourth driving rod 811, corresponding structures need to be arranged to transmit circumferential rotation force to make the fourth driving rod 811 rotate around the circumference, in one of the embodiments, please refer to Figure 21 and Figure 21The third driving assembly 80 further comprises a third handle 83, which is connected with the fourth driving rod 811. A user can rotate the third handle 83 and drive the fourth driving rod 811 to rotate by exerting an external force. In other embodiments, other structures can be used for transmission.

[0231] The specific structure of the third handle 83 can refer to the detailed description of the first handle 52 above, which will not be repeated here.

[0232] It can be understood that the first handle 52 can be arranged in the first driving assembly 50, the second handle 63 can be arranged in the second driving assembly 60, and the third handle 83 can be arranged in the third driving assembly 80, so that the three driving assemblies are manually driven, avoiding the use of electric driving assemblies. In this way, when the clamping device 100 is applied to the electromagnetic radiation performance of the electronic equipment 2000, the driving assemblies (including the first driving assembly 50, the second driving assembly 60, and the third driving assembly 80) can avoid affecting the test effect of the electromagnetic radiation performance by using metal materials. For example, in this application, all the driving assembly materials can use stainless steel.

[0233] Similarly, the bearing assembly 30, the clamping assembly 40, and the first base 10 can be made of non-metal materials such as acrylic plates and the like, so that the entire clamping device 100 does not contain metal.

[0234] In some embodiments, please refer to Figure 22 and Figure 22 , Figure 21 for Figure 23 the structure of the third support plate 71 in the first base 10. The clamping device 100 further comprises a second support column 74, one end of which is fixed to the first base 10, and the third support plate 71 is provided with a matching hole 712, which is in sliding fit with the second support column 74. The second support column 74 and the first support column 84 are commonly supported on the first base 10. When the third driving assembly 80 drives the third support plate 71 to move in the first direction L1, the third support plate 71 moves relative to the first support column 84 under the sliding fit of the matching hole 712.

[0235] The second support column 74 can be provided in multiple, and multiple second support columns 74 are arranged around the outer periphery of the first support column 84. In some embodiments, the height of the second support column 74 in the first direction L1 can be 25-35 cm. For example, the height of the second support column 74 in the first direction L1 can be 25 cm, 28 cm, 30 cm, 32 cm, or 35 cm.

[0236] It can be understood that the third support plate 71 can slide along the second support column 74 to the top end of the second support column 74 away from the first base 10, so that the third support plate 71 has the risk of sliding off the second support column 74, therefore, in order to limit the third support plate 71, in some embodiments, please refer to Figure 23 , Figure 20 for Figure 23 the partial structure diagram of the clamping device 100 is shown, the clamping device 100 further comprises a limiting piece 75, the limiting piece 75 is fixed on the second support column 74 and located on the side of the third support plate 71 away from the first base 10, that is, the limiting piece 75, the third support plate 71 and the first base 10 are arranged in the first direction L1 in turn.

[0237] In this way, when the third driving assembly 80 drives the third support plate 71 to move away from the first base 10, the farthest position that the third support plate 71 can reach is the position abutting against the limiting piece 75, so that the third support plate 71 can be limited by the limiting piece 75 to avoid sliding off the second support column 74.

[0238] In some embodiments, please refer to Figure 23 , the limiting piece 75 can be one, and the limiting piece 75 can be fixedly connected with all the second support columns 74. For example, the limiting piece 75 can have a hollow ring structure, so that the second driving assembly 60 passes through the hollow position of the limiting piece 75 and is placed on the side of the third support plate 71 away from the first base 10. On the one hand, it avoids interference between the limiting piece 75 and the second driving assembly 60, and on the other hand, it also simplifies the assembly process and improves the assembly efficiency.

[0239] In another embodiment, when the limiting piece 75 is one, the limiting piece 75 can be arranged on one of the second support columns 74. In yet another embodiment, the limiting piece 75 can be multiple, and the multiple limiting pieces 75 are independent of each other, and different limiting pieces 75 can be arranged on different second support columns 74. For example, the limiting piece 75 can have a block shape. In this way, the third support plate 71 can also be limited by the limiting piece 75.

[0240] In some embodiments, please refer to Figure 24 and Figure 24 , Figure 23 for Figure 1 the structure diagram of the first base 10 of the clamping device 100 is shown, the side of the first base 10 away from the bearing assembly 30 has a first positioning part 11, the first positioning part 11 is a protrusion or a groove, and the first base 10 can be fixed to the outside through the first positioning part 11 at the bottom. For example, when the clamping device 100 is placed on Figure 23The test bench 3000 shown in the test bench 3000 has a matching positioning part 3001, and through the cooperation of the first positioning part 11 and the matching positioning part 3001, the clamping device 100 and the test bench 3000 can be fixed.

[0241] It can be understood that one of the first positioning part 11 and the matching positioning part 3001 is a protrusion, and the other is a groove. When designing the first positioning part 11, the first positioning part 11 can be shaped according to the actual application scene of the clamping device 100 and set in the matching positioning part 3001.

[0242] In other embodiments, if the test bench 3000 is not provided with the matching positioning part 3001, the clamping device 100 of the present application can also provide optional accessories. Please continue to refer to Figure 24 , the clamping device 100 further comprises a second base 20, which is detachably connected to one side of the first base 10 away from the bearing assembly 30.

[0243] Please refer to Figure 25 and Figure 25 , Figure 23 for Figure 1 the structural schematic view of the second base 20. The second base 20 has a second positioning part 21, which cooperates with the first positioning part 11, so that the second base 20 is placed on the test bench 3000 shown in Figure 26 .

[0244] Specifically, please refer to Figure 26 , Figure 25 for Figures 1-4 the structural schematic view of the second base 20 from another perspective. The side of the second base 20 away from the first base 10 forms a support surface 22. In this way, the second base 20 is assembled on the first base 10, and the clamping device 100 is fixed with external equipment through the support surface 22.

[0245] It can be understood that the support surface 22 can be a plane, a circular arc surface, etc. The specific setting needs to be set according to the surface of the external equipment in contact with the support surface 22, which is not limited in the present application.

[0246] In some embodiments, the height of the first base 10 in the first direction L1 can be greater than or equal to 1.5 cm, for example, the height of the first base 10 in the first direction L1 can be 1.5 cm, 2.0 cm, 2.5 cm, 3.0 cm, etc. In this way, it is beneficial to improve the structural strength of the first base 10 and realize the stable support of the first base 10 to the bearing assembly 30 and other structures.

[0247] In practical applications, after the first driving component 50 fixes the electronic device 2000 to the clamping component 40, the clamping component 40 and the electronic device can be rotated relative to the first base 10 to the desired test angle by the driving of the second driving component 60. Alternatively, the clamping component 40 and the electronic device can be moved relative to the first base 10 along the first direction L1 by the driving of the third driving component 80, thereby raising or lowering the electronic device 2000. For example, the electronic device 2000 can be moved along the first direction L1 to the center of the testing device.

[0248] In some embodiments, adopt Figures 5-6 In the illustrated embodiment, after the clamping device 100 clamps the electronic device, when it is applied to the testing equipment to perform OTA testing on the electronic device 2000, the average time required to place the electronic device 2000 from the test preparation stage to the end of the test is generally about 15 minutes, and there may be multiple adjustments to the position of the electronic device 2000 during the process. However, after using the clamping device 100 including the driving components of this application to clamp the electronic device 2000, there is no need to adjust the position of the electronic device 2000 during the test. The first driving component 50, the second driving component 60, and the third driving component 80 realize the automatic adjustment of the electronic device 2000, so that the average time required for the electronic device 2000 from the test preparation stage to the end of the test is generally about 10 minutes, which shortens the overall test time and improves test efficiency and accuracy.

[0249] Similarly, adopt Figure 7 After the clamping device 100 in the illustrated embodiment clamps the electronic device 2000, when it is applied to the test equipment to perform SAR testing on the electronic device 2000, the average time required to place the electronic device 2000 from the test preparation stage to the end of the test is generally about 10 minutes. However, when using the clamping device 100 of the above embodiment of this application (see...), Figure 7 When conducting SAR testing, the average time required to place the electronic equipment 2000 is generally around 5 minutes, which shortens the overall testing time.

[0250] The clamping device 100 of the above embodiment (see above) Figure 7 After the electronic device 2000 is clamped and fixed, when the electronic device 2000 is subjected to OTA testing using a testing device, the consistency deviation of the test results is ≤0.5dB under the same operating conditions. In SAR testing, the clamping device 100 of the above embodiment (see [reference]) is used. ​ When clamping and fixing electronic device 2000, under the same working conditions, the consistency deviation of the test results is ≤0.2W / kg, and the test results are relatively accurate, avoiding the impact of the test results due to the inaccuracy of clamping electronic device 2000 by clamping device 100.

[0251] The clamping device 100 and the test equipment of the above-mentioned embodiments of the present application can be compatible with fixing electronic devices 2000 of different sizes, and can ensure the clamping stability of the electronic devices 2000. When the test device of the test equipment tests the performance of the electronic devices 2000 in the clamping device 100, the accuracy of the test results is ensured, and the consistency deviation is reduced.

[0252] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0253] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A clamping device, characterized in that The clamping device comprises: a first base; a bearing assembly arranged on the first base, the bearing assembly being arranged in a first direction with respect to the first base, the bearing assembly being rotatable with respect to the first base and / or the bearing assembly being movable in the first direction with respect to the first base; a clamping assembly comprising a first clamping member and a second clamping member arranged in a second direction, the first clamping member and the second clamping member being located on a side of the bearing assembly away from the first base, and the first clamping member being movable in the second direction with respect to the bearing assembly, the first direction being perpendicular to the second direction.

2. The clamping device of claim 1, wherein The bearing assembly comprises a first support plate, and a first guide structure is arranged on the first support plate and extends in the second direction. A first matching structure is arranged on the first clamping member, and the first matching structure is in sliding cooperation with the first guide structure.

3. The clamping device of claim 2, wherein The clamping device further comprises a first driving assembly connected with the first clamping member. The first driving assembly is configured to drive the first clamping member to move in the second direction.

4. The clamping device of claim 3, wherein The first driving assembly comprises a first driving rod extending in the second direction. The first driving rod is in transmission connection with the first clamping member, and the first driving rod is rotatable about its own axis to drive the first clamping member to move in the second direction.

5. The clamping device of claim 4, wherein The clamping assembly further comprises a first connecting member located on a side of the first support plate away from the first clamping member, and the first connecting member is connected to the first clamping member, and the first driving rod is in threaded cooperation with the first connecting member.

6. The clamping device according to claim 4 or 5, characterized in that The bearing assembly further comprises a second support plate arranged between the first base and the first support plate, and a fixing member fixed between the first support plate and the second support plate. The first driving rod is rotatably connected to the fixing member.

7. The clamping device according to any one of claims 1-6, characterized in that A clamping space is formed between the first clamping member and the second clamping member, and at least one end of the clamping space in a third direction is open, and the third direction is perpendicular to both the first direction and the second direction.

8. The clamping device according to any one of claims 1-7, characterized in that The clamping assembly has a first clamping state, and when the clamping assembly is in the first clamping state, the first clamping member and the second clamping member have a size in the second direction greater than 15 cm and less than or equal to 50 cm.

9. The clamping device according to any one of claims 1-8, characterized in that The height of the first clamping member in the first direction is greater than or equal to 5 cm and less than or equal to 10 cm.

10. The clamping device according to any one of claims 1-9, characterized in that The clamping device comprises a third support plate located between the bearing assembly and the first base, and a second driving assembly. The second driving assembly is arranged on the third support plate and configured to drive the bearing assembly to rotate with respect to the first base.

11. The clamping device of claim 10, wherein The clamping device comprises a second connecting member fixed to a side surface of the bearing assembly close to the third support plate, and the second driving assembly comprises a first driving unit and a second driving rod, the second driving rod is fixed to the second connecting member, and the first driving unit is configured to drive the second driving rod to rotate about its own axis.

12. The clamping device of claim 11, wherein The first driving unit comprises a first transmission member, a second transmission member and a third transmission member, the first transmission member is in transmission connection with the second transmission member, and the second transmission member is in transmission connection with the third transmission member; The third transmission member is fixed with the second driving rod, and the first transmission member can rotate around its own axis to drive the second transmission member to move, so as to drive the third transmission member to rotate around the axis of the second driving rod.

13. The clamping device according to claim 11 or 12, characterized in that The third support plate is provided with a second guide structure, and the second connecting member is provided with a second matching structure which is in sliding cooperation with the second guide structure.

14. The clamping device according to any one of claims 1-13, characterized in that The clamping device further comprises a third driving assembly arranged between the first base and the bearing assembly, and the third driving assembly is used to drive the bearing assembly to move in the first direction.

15. The clamping device of claim 14, wherein, The third driving assembly comprises a fourth transmission member and a fifth transmission member in transmission connection, the fifth transmission member is fixed relative to the bearing assembly, and the fourth transmission member can rotate to drive the fifth transmission member to move in the first direction.

16. The clamping device of claim 15, wherein The fourth transmission member comprises a fourth driving rod and a second gear in fixed connection, and the fifth transmission member comprises a third gear, the second gear is in meshing with the third gear; The third driving assembly further comprises a first support column, one end of the first support column is fixed to the first base, and the third gear is in threaded cooperation with the end of the first support column away from the first base. The fourth driving rod can rotate around its own axis to drive the third gear to rotate relative to the first support column and move in the first direction.

17. The clamping device according to any of claims 14-16, characterized in that The clamping device further comprises a third support plate connected with the bearing assembly. The clamping device further comprises a second support column, one end of the second support column is fixed to the first base, and the third support plate is provided with a matching hole in sliding cooperation with the second support column.

18. The clamping device of claim 17, wherein, The clamping device further comprises a limiting piece fixed to the second support column and located on the side of the third support plate away from the first base.

19. The clamping device according to any one of claims 1-18, characterized in that The side of the first base away from the bearing assembly is provided with a first positioning part in the form of a protrusion or a groove.

20. The clamping device of claim 19, wherein, The clamping device further comprises a second base detachably connected to the side of the first base away from the bearing assembly. The second base is provided with a second positioning part in cooperation with the first positioning part, and the side of the second base away from the first base forms a support surface.

21. The clamping device according to any of claims 1-20, characterized in that The side surface of the first clamping member facing the second clamping member is provided with a shock-absorbing buffer layer.

22. The clamping device according to any one of claims 1-21, characterized in that The height of the clamping device in the first direction satisfies the condition that it is greater than or equal to X1 and less than or equal to X2, X1 is greater than or equal to 15 cm and less than or equal to 40 cm, and X2 is greater than or equal to 50 cm and less than or equal to 70 cm.

23. A test apparatus, characterized by The clamping device is used to clamp a test piece, and the test device is used to test the performance of the test piece. The clamping device is used to clamp a test piece, and the test device is used to test the performance of the test piece.

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