Space-saving two-dimensional transfer driving module and keycap detection mechanism

Abstract

The utility model discloses a space-saving two-dimensional transfer driving module and keycap detection mechanism, which relates to the field of keycap detection and comprises a two-dimensional transfer driving module and a keycap detection module. The two-dimensional transfer driving module comprises an X-axis driving module and a Z-axis driving module, so that the accurate movement of the detection module in X and Z directions is realized; the X-axis driving module is composed of a first mounting base, a first rectangular coil, a first magnetic block assembly and a second magnetic block assembly, the magnetic block assemblies are provided with magnetic channels, the side edges of the coils penetrate into the magnetic channels, the same-direction Ampere force is generated by means of current and a magnetic field to drive X-direction movement, and stability of sliding blocks and sliding rails is guaranteed. The Z-axis driving module is similar in structure and is matched with a tension spring and a sliding rail, and a second rectangular coil is narrow in X-direction material thickness so as to save space; the keycap detection module comprises a pressure sensor and a selectable drawing hook claw / pressing assembly, and can complete corresponding detection. The whole device is of an X-direction thin type three-dimensional structure, multiple sets can be arranged in the X direction to achieve multi-module independent driving, and occupied space is reduced. The magnetic block and the coil form a voice coil motor, thereby improving operation speed and detection efficiency.

Description

[Technical Field]

[0001] This utility model belongs to the field of linear drive module technology, and in particular relates to a space-saving two-dimensional transfer drive module and keycap detection mechanism. [Background Technology]

[0002] Keyboards are generally assembled from an aluminum substrate, circuit board, scissor-switch support, and keycaps. If the keycaps have poor elasticity or pull-out force, it will severely affect the keyboard's lifespan and the mechanical feel after assembly. Therefore, to ensure reliability during subsequent use, the pull-out force of the assembled keycaps needs to be tested after installation.

[0003] Numerous automatic keycap pull-out force testing devices exist in the current technology. To improve testing efficiency, multiple pull-out testing heads are typically used to simultaneously test multiple keycaps on a keyboard. For example, patent CN113970474A discloses a keycap testing mechanism and method that effectively prevents the pull-out hook from breaking. However, the setup of multiple pull-out testing heads generally requires multiple independent drive modules. Each drive module needs to be able to drive one pull-out testing head to perform horizontal axial and Z-axis transfer. The horizontal axial transfer drive is used for movement between different rows of the keyboard, and the Z-axis transfer drive is used to drive the pull-out testing head to frequently pull the keycaps upwards. The setup of multiple drive modules undoubtedly makes the drive structure of the testing mechanism cumbersome and complex, occupying a large amount of space. The multiple motors also result in a heavy overall weight and large space occupation, which is not conducive to high-speed operation of keycap pull-out testing.

[0004] Therefore, it is necessary to provide a new space-saving two-dimensional transfer drive module and keycap detection mechanism to solve the above-mentioned technical problems. [Utility Model Content]

[0005] One of the main objectives of this invention is to provide a space-saving two-dimensional transfer drive module that can greatly reduce space occupation, facilitate the design of multiple units arranged and integrated, and has a fast operating speed.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a space-saving two-dimensional transfer drive module, characterized in that: it includes a first mounting base, an X-axis drive module disposed on the first mounting base, a first movable frame disposed at the movable end of the X-axis drive module, a second mounting base fixed below the first movable frame, a Z-axis drive module disposed on the second mounting base, and a second movable frame disposed at the movable end of the Z-axis drive module;

[0007] The X-axis drive module includes a first rectangular coil fixed on the first movable frame and a first magnetic block assembly disposed on the first mounting base and extending along the X-axis. A first magnetic channel extending along the X-axis is formed in the first magnetic block assembly. One side of the first rectangular coil passes through the first magnetic channel and is driven to move along the X-axis under the action of the magnetic field of the first magnetic block assembly.

[0008] The Z-axis drive module includes a second rectangular coil fixed on the second movable frame and a third magnetic block assembly disposed on the second mounting base and extending along the Z-axis. A second magnetic channel extending along the Z-axis is formed in the third magnetic block assembly. The upper side of the second rectangular coil passes through the second magnetic channel and is driven to move along the Z-axis under the action of the magnetic field of the third magnetic block assembly.

[0009] Furthermore, the first magnetic block assembly is disposed near the upper side of the first rectangular coil, and the upper straight segment of the first rectangular coil passes through the first magnetic channel along the Y-axis direction, and the magnetic field direction in the first magnetic channel is parallel to the Z-axis direction.

[0010] Furthermore, the X-axis drive module also includes a second magnetic block assembly disposed on the first mounting base and extending along the X-axis; the second magnetic block assembly has the same structure as the first magnetic block assembly, and also forms a first magnetic channel extending along the X-axis; the magnetic field direction in the first magnetic channel of the first magnetic block assembly and the magnetic field direction in the first magnetic channel of the second magnetic block assembly are both parallel to the Z-axis direction and opposite to each other; the second magnetic block assembly is disposed near the lower side of the first rectangular coil, and the lower straight segment of the first rectangular coil passes through the first magnetic channel in the second magnetic block assembly along the Y-axis direction.

[0011] Furthermore, the first magnetic block assembly is positioned close to the left side of the first rectangular coil, and the left straight segment of the first rectangular coil passes through the first magnetic channel along the Z-axis direction, with the magnetic field direction within the first magnetic channel parallel to the Y-axis direction.

[0012] Furthermore, the X-axis drive module also includes a second magnetic block assembly disposed on the first mounting base and extending along the X-axis; the second magnetic block assembly has the same structure as the first magnetic block assembly, and also forms a first magnetic channel extending along the X-axis; the magnetic field direction in the first magnetic channel of the first magnetic block assembly and the magnetic field direction in the first magnetic channel of the second magnetic block assembly are both parallel to the Y-axis direction and opposite to each other; the second magnetic block assembly is disposed near the right side of the first rectangular coil, and the right straight segment of the first rectangular coil passes through the first magnetic channel in the second magnetic block assembly along the Z-axis direction.

[0013] Furthermore, both the first magnetic block assembly and the second magnetic block assembly include a first magnetic block strip and a second magnetic block strip arranged in parallel and spaced apart, with the first magnetic block strip and the second magnetic block strip forming the first magnetic channel.

[0014] Furthermore, the first rectangular coil has a three-dimensional rectangular structure, with its horizontal length extending along the Y-axis and a designed width in the X-axis direction; the second rectangular coil has a vertical rectangular structure, with its horizontal length extending along the Y-axis and a designed width in the X-axis direction.

[0015] Furthermore, the first movable frame is a rectangular frame structure that is vertically distributed as a whole, and forms a surrounding groove. The first rectangular coil is fixedly installed in the surrounding groove. The top and bottom of the inner wall of the surrounding groove are provided with first sliders, and the left and right sides of the inner wall are provided with second sliders. The first mounting base is provided with a first slide rail that cooperates with the first slider and a second slide rail that cooperates with the second slider.

[0016] Furthermore, the Z-axis drive module also includes a fourth magnetic block assembly disposed on the second mounting base and extending along the Z-axis; the fourth magnetic block assembly has the same structure as the third magnetic block assembly and also forms the second magnetic channel; the third magnetic block assembly and the fourth magnetic block assembly are arranged vertically, and the second magnetic channel in the third magnetic block assembly is vertically connected to and communicates with the second magnetic channel in the fourth magnetic block assembly; the lower side of the second rectangular coil passes through the second magnetic channel and drives the second rectangular coil to move along the Z-axis under the action of the magnetic field of the fourth magnetic block assembly; the magnetic field direction in the second magnetic channel of the third magnetic block assembly and the magnetic field direction in the second magnetic channel of the fourth magnetic block assembly are both parallel to the X-axis direction and opposite to each other; the upper and lower sides of the second rectangular coil both pass through the second magnetic channel along the Y-axis direction.

[0017] Furthermore, both the third magnetic block assembly and the fourth magnetic block assembly include a pair of third magnetic block strips and fourth magnetic block strips arranged in parallel and spaced apart, with the second magnetic channel formed between the third magnetic block strips and the fourth magnetic block strips;

[0018] The second mounting base includes a top mounting plate, a front mounting plate and a rear mounting plate disposed below opposite sides of the top mounting plate along the X-axis direction, and a bottom mounting plate fixed below the front mounting plate or the rear mounting plate; a fifth mounting cavity is formed between the front mounting plate and the rear mounting plate for mounting the third magnetic block assembly and the fourth magnetic block assembly; the third magnetic block strip in the third magnetic block assembly and the fourth magnetic block strip in the fourth magnetic block assembly are vertically distributed and fixedly mounted on one side inner wall of the fifth mounting cavity, and the fourth magnetic block strip in the third magnetic block assembly and the third magnetic block strip in the fourth magnetic block assembly are vertically distributed and fixedly mounted on the other opposite side inner wall of the fifth mounting cavity;

[0019] The bottom mounting plate is provided with a third slide rail extending along the Z-axis, and the second movable frame is fixedly provided with a third slider that cooperates with the third slide rail; a tension spring is provided between the second mounting base and the second movable frame.

[0020] Another objective of this utility model is to provide a keycap detection mechanism, including the two-dimensional transfer drive module as described above and a keycap detection module disposed at the movable end of the two-dimensional transfer drive module; the first movable frame, the second mounting base, the Z-axis drive module and the second movable frame together constitute a movable unit; each movable unit is provided with a first rectangular coil that cooperates with the first magnetic block assembly, and the first mounting base is provided with a plurality of the movable units.

[0021] Furthermore, the keycap detection module includes a pressure sensor fixed below the second movable bracket and a detection component disposed at the sensing end of the pressure sensor, wherein the detection component is a keycap pull-out claw assembly or a keycap pressing assembly.

[0022] Compared with the prior art, the beneficial effects of this space-saving two-dimensional transfer drive module and keycap detection mechanism are as follows: Through the cooperative design of the magnetic block assembly and the rectangular coil, linear drive in the X-axis and Z-axis directions is achieved; in the X-axis drive module, the first magnetic block assembly forms a first magnetic channel extending in the X-axis direction, and the magnetic field direction within the first magnetic channel is perpendicular to the side of the rectangular coil and parallel to the Y-axis or Z-axis direction; a straight segment of the upper or lower side of the rectangular coil extends along the Y-axis direction through the first magnetic channel, or a straight segment of either the left or right side extends along the Z-axis direction through the first magnetic channel; the first magnetic block assembly acts on the current passing through it. On the rectangular coil, an Ampere force is generated along the X-axis to achieve X-axis drive. In the Z-axis drive module, the third magnetic block assembly forms a second magnetic channel extending in the Z-axis direction. The magnetic field direction in the second magnetic channel is perpendicular to the side of the rectangular coil and distributed parallel to the X-axis direction. The straight section of the upper or lower side of the rectangular coil extends along the Y-axis and passes through the second magnetic channel. The third magnetic block assembly acts on the rectangular coil carrying current, generating an Ampere force along the Z-axis to achieve Z-axis drive. The entire two-dimensional transfer drive module has a compact structure and small space occupation, which greatly reduces the weight of the overall drive module and helps to improve the transfer operation speed and the arrangement of multiple drive modules. [Attached Image Description]

[0023] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the first mounting base, the first movable frame, and the X-axis drive module in this embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the first movable frame and the X-axis drive module in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the X-axis drive module in an embodiment of the present invention;

[0027] Figure 5 This is another structural schematic diagram of the X-axis drive module in an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the Z-axis drive module, the second mounting base, the first movable frame, and the second movable frame in an embodiment of this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the second mounting base, the Z-axis drive module, and the second movable frame in an embodiment of this utility model;

[0030] Figure 8This is a schematic diagram of the structure of the second mounting base and part of the Z-axis drive module in an embodiment of this utility model;

[0031] Figure 9 This is a schematic diagram of the principle structure of the Z-axis drive module in the embodiment of this utility model;

[0032] Figure 10 This is a schematic diagram of another structure of the keycap detection module in this utility model embodiment;

[0033] The numbers in the diagram represent:

[0034] 100-Keycap Testing Agency;

[0035] 1-Two-dimensional transfer drive module, 11-First mounting base, 111-Middle mounting plate, 112-Upper mounting plate, 113-Lower mounting plate, 114-First slide rail, 115-Second slide rail, 12-X-axis drive module, 121-First rectangular coil, 1211-Upper straight segment, 1212-Right straight segment, 1213-Lower straight segment, 1214-Left straight segment, 122-First magnetic block assembly, 1221-First magnetic block strip, 1222-Second magnetic block strip, 1223-First magnetic channel, 123-Second magnetic block assembly, 13-First movable frame, 131-Circular slot, 1 32-First slider, 133-Second slider, 14-Second mounting base, 141-Top mounting plate, 142-Front mounting plate, 143-Rear mounting plate, 144-Bottom mounting plate, 145-Third slide rail, 15-Z-axis drive module, 151-Second rectangular coil, 1511-First straight segment, 1512-Second straight segment, 152-Third magnetic block assembly, 1521-Third magnetic block strip, 1522-Fourth magnetic block strip, 1523-Second magnetic channel, 153-Fourth magnetic block assembly, 16-Second movable frame, 161-Third slider, 17-Tension spring, 18-First motor controller;

[0036] 2-Keycap detection module, 21-Pressure sensor, 22-Detection component, 221-Keycap pull-out claw component, 222-Keycap pressing component.

Detailed Implementation Methods

[0037] Example 1:

[0038] Please refer to Figures 1-10 This embodiment is a keycap detection mechanism 100, which includes a two-dimensional transfer drive module 1 and a keycap detection module 2 disposed at the active end of the two-dimensional transfer drive module 1.

[0039] The two-dimensional transfer drive module 1 includes a first mounting base 11, an X-axis drive module 12 disposed on the first mounting base 11, a first movable frame 13 disposed at the movable end of the X-axis drive module 12, a second mounting base 14 fixed below the first movable frame 13, a Z-axis drive module 15 disposed on the second mounting base 14, and a second movable frame 16 disposed at the movable end of the Z-axis drive module 15.

[0040] The X-axis drive module 12 includes a first rectangular coil 121 fixed on a first movable frame 13, and a first magnetic block assembly 122 and a second magnetic block assembly 123 disposed on a first mounting base 11 and extending along the X-axis. Both the first magnetic block assembly 122 and the second magnetic block assembly 123 include a first magnetic block strip 1221 and a second magnetic block strip 1222 arranged parallel to each other, with a first magnetic channel 1223 formed between them. In the first magnetic block assembly 122 and the second magnetic block assembly 123, the magnetic field directions within the first magnetic channel 1223 are opposite and perpendicular to the straight side of the first rectangular coil 121. A pair of opposite sides of the first rectangular coil 121 pass through the first magnetic channel 1223 in the first magnetic block assembly 122 and the second magnetic assembly 123, respectively. Current flows through the first rectangular coil 121.

[0041] The magnetic field direction in the first magnetic channel 1223 is set parallel to the Z-axis or parallel to the Y-axis.

[0042] The first rectangular coil 121 has a three-dimensional rectangular structure, with its horizontal length extending along the Y-axis and a certain width in the X-axis direction. By increasing the width of the first rectangular coil 121, its area in the first magnetic channel 1223 can be increased, thereby increasing the driving force. The first rectangular coil 121 includes an upper straight segment 1211, a right straight segment 1212, a lower straight segment 1213, and a left straight segment 1214.

[0043] In this embodiment, the first magnetic block assembly 122 and the second magnetic block assembly 123 are arranged vertically on the first mounting base 11. The first rectangular coil 121 surrounds the first mounting base 11, with its upper straight segment 1211 passing through the first magnetic channel 1223 of the first magnetic block assembly 122 in the Y direction, and its lower straight segment 1213 passing through the first magnetic channel 1223 of the second magnetic block assembly 123 in the Y direction. Since the current flows in opposite directions in the upper straight segment 1211 and the lower straight segment 1213 of the first rectangular coil 121, and the magnetic field directions in the first magnetic channel 1223 of the first magnetic block assembly 122 and the second magnetic block assembly 123 are also opposite, according to the left-hand rule, the Ampere force generated by the first magnetic block assembly 122 and the second magnetic block assembly 123 on the first rectangular coil 121 is in the same direction. Therefore, it can drive the first rectangular coil 121 to move in the X direction, and by changing the current direction in the first rectangular coil 121, the positive and negative movement of the first rectangular coil 121 in the X direction can be achieved.

[0044] In other embodiments, the first magnetic block assembly 122 and the second magnetic block assembly 123 are arranged left and right on the first mounting base 11. The first rectangular coil 121 surrounds the first mounting base 11 and the left straight segment 1214 passes through the first magnetic channel 1223 of the first magnetic block assembly 122 in the Z direction, and the right straight segment 1212 passes through the first magnetic channel 1223 of the second magnetic block assembly 123 in the Z direction.

[0045] In this embodiment, the first mounting base 11 includes a middle mounting plate 111, an upper mounting plate 112 fixed above the middle mounting plate 111, and a lower mounting plate 113 fixed below the middle mounting plate 111. A first mounting cavity (not shown in the figure) for mounting the first magnetic block assembly 122 is formed between the upper and lower opposite surfaces of the middle mounting plate 111 and the upper mounting plate 112; a second mounting cavity (not shown in the figure) for mounting the second magnetic block assembly 123 is formed between the upper and lower opposite surfaces of the lower mounting plate 113 and the middle mounting plate 111. The first magnetic block strip 1221 in the first magnetic block assembly 122 is fixedly installed on the top of the inner wall of the first mounting cavity, and the second magnetic block strip 1222 is fixedly installed on the bottom of the inner wall of the first mounting cavity; the first magnetic block strip 1221 in the second magnetic block assembly 123 is fixedly installed on the bottom of the inner wall of the second mounting cavity, and the second magnetic block strip 1222 is fixedly installed on the top of the inner wall of the second mounting cavity.

[0046] In another embodiment, the first mounting base 11 may also include a middle mounting plate 111, a left mounting plate (not shown in the figure) fixed to the left side of the middle mounting plate 111, and a right mounting plate (not shown in the figure) fixed to the right side of the middle mounting plate 111. A third mounting cavity (not shown in the figure) for mounting the first magnetic block assembly 122 is formed between the left and right opposite surfaces of the middle mounting plate 111; a fourth mounting cavity (not shown in the figure) for mounting the second magnetic block assembly 123 is formed between the right mounting plate and the left and right opposite surfaces of the middle mounting plate 111. The first magnetic block strip 1221 in the first magnetic block assembly 122 is fixedly mounted on the left inner wall of the second mounting cavity, and the second magnetic block strip 1222 is fixedly mounted on the right inner wall of the first mounting cavity; the first magnetic block strip 1221 in the second magnetic block assembly 123 is fixedly mounted on the right inner wall of the second mounting cavity, and the second magnetic block strip 1222 is fixedly mounted on the left inner wall of the second mounting cavity.

[0047] To ensure the stability of the first movable frame 13 moving in the X direction, in this embodiment, the first movable frame 13 is a vertically distributed rectangular frame structure, forming a surrounding slot 131. First sliders 132 are provided at the top and bottom of the inner wall of the surrounding slot 131, and second sliders 133 are provided on both the left and right sides of the inner wall. The first mounting base 11 is provided with a first slide rail 114 that cooperates with the first slider 132 and a second slide rail 115 that cooperates with the second slider 133. The first movable frame 13 is guided in the X direction from multiple side surfaces, ensuring the stability of its X-direction transfer and the smooth cooperation between the first rectangular coil 121 and the first magnetic block assembly 122 and the second magnetic block assembly 123, effectively preventing the first rectangular coil 121 from getting stuck in the first magnetic channel 1223.

[0048] The first rectangular coil 121 is fixedly disposed within the surrounding slot 131. Specifically, the left and right sides of the first rectangular coil 121 are fixedly connected to the left and right inner walls of the surrounding slot 131, respectively, or the upper and lower sides of the first rectangular coil 121 are fixedly connected to the upper and lower inner walls of the slot 131, respectively. When one pair of opposite sides of the first rectangular coil 121 is fixedly connected to the surrounding slot 131, the other pair of opposite sides is used to pass through the first magnetic channel 1223 for power transmission.

[0049] Z-axis drive module 15 includes a second rectangular coil 151 fixed on the second movable frame 16, and a third magnetic block assembly 152 and a fourth magnetic block assembly 153 disposed on the second mounting base 14 and extending along the Z-axis. The third magnetic block assembly 152 and the fourth magnetic block assembly 153 each include a pair of third magnetic block strips 1521 and fourth magnetic block strips 1522 arranged in parallel and spaced apart. A second magnetic channel 1523 is formed between the third magnetic block strips 1521 and the fourth magnetic block strips 1522. In the third magnetic block assembly 152 and the fourth magnetic block assembly 153, the magnetic field directions in the second magnetic channel 1523 are opposite and are perpendicular to the upper and lower straight sides of the second rectangular coil 151, respectively.

[0050] The third magnetic block assembly 152 and the fourth magnetic block assembly 153 are arranged vertically. The second magnetic channel 1523 in the third magnetic block assembly 152 and the second magnetic channel 1523 in the fourth magnetic block assembly 153 are vertically connected and interconnected. The second rectangular coil 151 has a vertical rectangular structure and extends along the Y-axis in the horizontal length direction. Since a very large force is not required during the keycap pull-out test, and the Z-axis movement path is short, the thickness and width of the second rectangular coil 151 in the X-direction can be smaller, saving space. The second rectangular coil 151 includes a first straight segment 1511 located above and a second straight segment 1512 located below and parallel to the first straight segment 1511. The first straight segment 1511 passes through the second magnetic channel 1523 in the third magnetic block assembly 15 in the Y-direction, and the second straight segment 1512 passes through the second magnetic channel 1523 in the fourth magnetic block assembly 153 in the Y-direction.

[0051] The magnetic field direction in the second magnetic channel 1523 is set parallel to the X-axis direction.

[0052] The second mounting base 14 includes a top mounting plate 141, a front mounting plate 142 and a rear mounting plate 143 disposed below opposite sides of the top mounting plate 141 along the X-axis direction, and a bottom mounting plate 144 fixed below the front mounting plate 142 or the rear mounting plate 143. A fifth mounting cavity (not shown in the figure) is formed between the front mounting plate 142 and the rear mounting plate 143 for mounting the third magnetic block assembly 152 and the fourth magnetic block assembly 153. Specifically, the third magnetic block strip 1521 in the third magnetic block assembly 152 and the fourth magnetic block strip 1522 in the fourth magnetic block assembly 153 are vertically distributed and fixedly mounted on one side inner wall of the fifth mounting cavity, and the fourth magnetic block strip 1522 in the third magnetic block assembly 152 and the third magnetic block strip 1521 in the fourth magnetic block assembly 153 are vertically distributed and fixedly mounted on the other opposite side inner wall of the fifth mounting cavity.

[0053] A third slide rail 145 extending along the Z-axis is provided on the bottom mounting plate 144. A third slider 161 that cooperates with the third slide rail 145 is fixedly provided on the second movable frame 16, and is slidably mounted on the second mounting base 14. A tension spring 17 is also provided between the second mounting base 14 and the second movable frame 16, and the second movable frame 16 is held by the tension spring 17.

[0054] The second rectangular coil 151 is fixedly mounted on the second movable frame 16, with both its upper and lower straight sides exposed. In one embodiment, the second movable frame 16 is provided with an inner ring positioning block 162 for positioning and clamping the inner ring of the second rectangular coil 151. In another embodiment, the left and right sides of the second rectangular coil 151 are fixedly mounted on the second movable frame 16, which can be fixed by adhesive or by clamping with pressure blocks.

[0055] The third magnetic block assembly 152 and the fourth magnetic block assembly 153 generate a magnetic field in the horizontal X direction. The current flowing through the second rectangular coil 151 in the Y direction will, according to the left-hand rule, cause the second rectangular coil 151 to be subjected to an upward or downward Ampere force, which will cause the second movable frame 16 to move up and down.

[0056] The first movable frame 13 is equipped with a first motor controller 18 that is electrically connected to the X-axis drive module 12, and the second mounting base 14 is equipped with a second motor controller (not shown in the figure) that is electrically connected to the Z-axis drive module 15.

[0057] The keycap detection module 2 includes a pressure sensor 21 fixed below the second movable bracket 16 and a detection component 22 disposed at the sensing end of the pressure sensor 21.

[0058] In one embodiment, the detection component 22 is a keycap pull-out claw assembly 221. The keycap pull-out claw assembly 221 can adopt the structure in the prior art, and its structure will not be described in detail in this embodiment.

[0059] In another embodiment, the detection component 22 is a keycap pressing component 222, which presses the keycap with a set pressure value, and can be used for keycap tactile detection, detection of whether the pressing is normal, etc.

[0060] In this embodiment, the first movable frame 13 is a three-dimensional frame structure, occupying a narrow width in the X direction. The second mounting base 14 and the second movable frame 16 are also three-dimensional plate structures arranged below the first movable frame 13, with their horizontal width extending only along the Y-axis. Their structural thickness in the X direction is relatively small. Therefore, the first movable frame 13, the second mounting base 14, the Z-axis drive module 15, and the second movable frame 16 together constitute a "three-dimensional thin plate structure" with a small thickness in the X direction and a certain length in the Y and Z directions, greatly saving space. Multiple "three-dimensional thin plate structures" can be arranged along the X direction to achieve independent driving of multiple keycap detection modules 2, effectively reducing the space occupied by the multi-head keycap detection mechanism. Furthermore, the use of magnetic blocks and coils to form a voice coil motor greatly improves the operating speed, thereby improving the efficiency of pull-out detection or press-out detection.

[0061] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A space-saving two-dimensional transfer drive module, characterized in that: It includes a first mounting base, an X-axis drive module disposed on the first mounting base, a first movable frame disposed at the movable end of the X-axis drive module, a second mounting base fixed below the first movable frame, a Z-axis drive module disposed on the second mounting base, and a second movable frame disposed at the movable end of the Z-axis drive module; The X-axis drive module includes a first rectangular coil fixed on the first movable frame and a first magnetic block assembly disposed on the first mounting base and extending along the X-axis. A first magnetic channel extending along the X-axis is formed in the first magnetic block assembly. One side of the first rectangular coil passes through the first magnetic channel and is driven to move along the X-axis under the action of the magnetic field of the first magnetic block assembly. The Z-axis drive module includes a second rectangular coil fixed on the second movable frame and a third magnetic block assembly disposed on the second mounting base and extending along the Z-axis. A second magnetic channel extending along the Z-axis is formed in the third magnetic block assembly. The upper side of the second rectangular coil passes through the second magnetic channel and is driven to move along the Z-axis under the action of the magnetic field of the third magnetic block assembly.

2. The space-saving two-dimensional transfer drive module as described in claim 1, characterized in that: The first magnetic block assembly is disposed near the upper side of the first rectangular coil, and the upper straight segment of the first rectangular coil passes through the first magnetic channel along the Y-axis direction, and the magnetic field direction in the first magnetic channel is parallel to the Z-axis direction.

3. The space-saving two-dimensional transfer drive module as described in claim 2, characterized in that: The X-axis drive module further includes a second magnetic block assembly disposed on the first mounting base and extending along the X-axis; the second magnetic block assembly has the same structure as the first magnetic block assembly and also forms a first magnetic channel extending along the X-axis; the magnetic field direction in the first magnetic channel of the first magnetic block assembly and the magnetic field direction in the first magnetic channel of the second magnetic block assembly are both parallel to the Z-axis direction and opposite to each other; the second magnetic block assembly is disposed near the lower side of the first rectangular coil, and the lower straight segment of the first rectangular coil passes through the first magnetic channel in the second magnetic block assembly along the Y-axis direction.

4. The space-saving two-dimensional transfer drive module as described in claim 1, characterized in that: The first magnetic block assembly is positioned near the left side of the first rectangular coil. The left straight segment of the first rectangular coil passes through the first magnetic channel along the Z-axis direction, and the magnetic field direction within the first magnetic channel is parallel to the Y-axis direction.

5. The space-saving two-dimensional transfer drive module as described in claim 4, characterized in that: The X-axis drive module further includes a second magnetic block assembly disposed on the first mounting base and extending along the X-axis; the second magnetic block assembly has the same structure as the first magnetic block assembly, and also forms a first magnetic channel extending along the X-axis; the magnetic field direction in the first magnetic channel of the first magnetic block assembly and the magnetic field direction in the first magnetic channel of the second magnetic block assembly are both parallel to the Y-axis direction and opposite to each other; the second magnetic block assembly is disposed near the right side of the first rectangular coil, and the right straight segment of the first rectangular coil passes through the first magnetic channel in the second magnetic block assembly along the Z-axis direction.

6. The space-saving two-dimensional transfer drive module as described in claim 3 or 5, characterized in that: Both the first magnetic block assembly and the second magnetic block assembly include a first magnetic block strip and a second magnetic block strip arranged in parallel and spaced apart, and the first magnetic channel is formed between the first magnetic block strip and the second magnetic block strip.

7. The space-saving two-dimensional transfer drive module as described in claim 1, characterized in that: The first rectangular coil has a three-dimensional rectangular structure, with its horizontal length extending along the Y-axis and a designed width in the X-axis direction; the second rectangular coil has a vertical rectangular structure, with its horizontal length extending along the Y-axis and a designed width in the X-axis direction.

8. The space-saving two-dimensional transfer drive module as described in claim 1, characterized in that: The first movable frame is a rectangular frame structure that is vertically distributed as a whole, and forms a surrounding groove. The first rectangular coil is fixedly installed in the surrounding groove. The top and bottom of the inner wall of the surrounding groove are provided with first sliders, and the left and right sides of the inner wall are provided with second sliders. The first mounting base is provided with a first slide rail that cooperates with the first slider and a second slide rail that cooperates with the second slider.

9. The space-saving two-dimensional transfer drive module as described in claim 1, characterized in that: The Z-axis drive module further includes a fourth magnetic block assembly disposed on the second mounting base and extending along the Z-axis; the fourth magnetic block assembly has the same structure as the third magnetic block assembly and also forms the second magnetic channel; the third magnetic block assembly and the fourth magnetic block assembly are arranged vertically, and the second magnetic channel in the third magnetic block assembly is vertically connected to and communicates with the second magnetic channel in the fourth magnetic block assembly; the lower side of the second rectangular coil passes through the second magnetic channel and drives the second rectangular coil to move along the Z-axis under the action of the magnetic field of the fourth magnetic block assembly; the magnetic field direction in the second magnetic channel of the third magnetic block assembly and the magnetic field direction in the second magnetic channel of the fourth magnetic block assembly are both parallel to the X-axis direction and opposite to each other; the upper and lower sides of the second rectangular coil both pass through the second magnetic channel along the Y-axis direction.

10. The space-saving two-dimensional transfer drive module as described in claim 9, characterized in that: Both the third magnetic block assembly and the fourth magnetic block assembly include a pair of third magnetic block strips and fourth magnetic block strips arranged in parallel and spaced apart, with the second magnetic channel formed between the third magnetic block strips and the fourth magnetic block strips; The second mounting base includes a top mounting plate, a front mounting plate and a rear mounting plate disposed below opposite sides of the top mounting plate along the X-axis direction, and a bottom mounting plate fixed below the front mounting plate or the rear mounting plate; a fifth mounting cavity is formed between the front mounting plate and the rear mounting plate for mounting the third magnetic block assembly and the fourth magnetic block assembly; the third magnetic block strip in the third magnetic block assembly and the fourth magnetic block strip in the fourth magnetic block assembly are vertically distributed and fixedly mounted on one side inner wall of the fifth mounting cavity, and the fourth magnetic block strip in the third magnetic block assembly and the third magnetic block strip in the fourth magnetic block assembly are vertically distributed and fixedly mounted on the other opposite side inner wall of the fifth mounting cavity; The bottom mounting plate is provided with a third slide rail extending along the Z-axis, and the second movable frame is fixedly provided with a third slider that cooperates with the third slide rail; a tension spring is provided between the second mounting base and the second movable frame.

11. A keycap testing mechanism, characterized in that: It includes the two-dimensional transfer drive module as described in claim 1 and a keycap detection module disposed at the movable end of the two-dimensional transfer drive module; the first movable frame, the second mounting base, the Z-axis drive module and the second movable frame together constitute a movable unit; each movable unit is configured with a first rectangular coil that cooperates with the first magnetic block assembly, and the first mounting base is provided with a plurality of the movable units.

12. The keycap detection mechanism as described in claim 11, characterized in that: The keycap detection module includes a pressure sensor fixed below the second movable bracket and a detection component disposed at the sensing end of the pressure sensor. The detection component is a keycap pull-out claw assembly or a keycap pressing assembly.

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