X-ray generating device and force sensor assembly
By introducing a floating gap design between the floating component and the mounting component in the force sensor assembly, the internal stress problem caused by screw fixing connection is solved, realizing the floating installation of the sensor, reducing the damage rate and improving the operational sensitivity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
- Filing Date
- 2024-11-20
- Publication Date
- 2026-05-22
AI Technical Summary
In existing force sensor assemblies, the force sensor is usually installed using a screw-fixed connection, which causes the sensor to be damaged by internal stress and increases the failure rate.
The design employs a movable gap between the floating component and the mounting component, allowing the force sensor to float on the mounting component. The force is transmitted through the floating component, reducing internal stress and lowering the damage rate.
This reduces internal stress damage to the force sensor during installation and use, lowers the sensor failure rate, and improves operational sensitivity and service life.
Smart Images

Figure CN122070879A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, specifically to an X-ray generating device and a force sensor assembly. Background Technology
[0002] Force sensor assemblies are frequently used to sense the magnitude or direction of the force applied by a user to a handle. For example, some DR (Digital Radiography) devices have a force sensor on one side of the handle to sense the direction of the operator's force, thus driving the DR device's head assembly in the corresponding direction via an electric assist device. However, in existing force sensor assemblies, the force sensor is typically installed using a screw-fixed connection. This installation process can subject the sensor to internal stress, which can damage its performance and affect its usability. Furthermore, in the aforementioned application scenarios, the fixed connection method also increases the failure rate of the force sensor during use. Summary of the Invention
[0003] The main technical problem solved by this invention is that in existing force sensor components, the force sensor is usually installed by fixing it with screws. The installation process will cause the sensor itself to be subjected to internal stress, which will damage the performance of the force sensor. In addition, the fixing method will also increase the damage rate of the force sensor during use.
[0004] In a first aspect, one embodiment provides a force sensor assembly, comprising:
[0005] First installation component;
[0006] A second mounting component is disposed opposite to the first mounting component, and an installation gap is formed between the first mounting component and the second mounting component;
[0007] A force sensor is disposed within the mounting gap; the force sensor has a first side and a second side disposed opposite to each other, the first side of the force sensor has a sensing part, and the second side of the force sensor is fixedly connected to the second mounting member;
[0008] The system includes a floating component movably mounted on the first mounting component, with a clearance between the floating component and the first mounting component to allow the first mounting component to move relative to the floating component. A first side of the force sensor is connected to the floating component to enable floating mounting of the force sensor on the first mounting component. The first mounting component can move relative to the floating component under external force and transmit the force to the sensing part of the force sensor via the floating component. The force sensor detects the force and generates a signal.
[0009] In one embodiment, the spacing of the active gap is 'a', and the value of 'a' ranges from 0 to 0.1 mm.
[0010] In one embodiment, the first mounting member is provided with a mounting groove, the floating member is movably disposed in the mounting groove, and the movable gap is located between the floating member and the inner wall of the mounting groove.
[0011] In one embodiment, the mounting groove has a mounting bottom wall and a mounting side wall, the mounting side wall being arranged circumferentially around the mounting bottom wall; the floating member has two oppositely disposed ends and a circumferentially disposed side portion surrounding the ends;
[0012] When the floating component is movably disposed in the mounting groove, one end of the floating component faces the mounting bottom wall, and the side of the floating component faces the mounting side wall; a first movable gap is formed between the end of the floating component facing the mounting bottom wall and the mounting bottom wall, and / or, a second movable gap is formed between the side of the floating component and the mounting side wall.
[0013] In one embodiment, the first mounting member is provided with a limiting member, which is located on the side of the floating member away from the mounting bottom wall, and is used to prevent the floating member from disengaging from the mounting groove from the side where the limiting member is located, and a third movable gap is formed between the floating member and the limiting member.
[0014] In one embodiment, the mounting groove is located on the side of the first mounting member facing the force sensor, and the limiting member is detachably connected to the first mounting member; the two ends of the floating member are a first end and a second end, the first end being disposed towards the mounting bottom wall, and the second end being disposed towards the limiting member;
[0015] The movable gap formed between the first end and the mounting bottom wall is the first movable gap; four sides of the floating member are arranged circumferentially around the end, and four mounting sidewalls are arranged circumferentially around the mounting bottom wall, with the four sides corresponding to the four mounting sidewalls one-to-one; the movable gap formed between at least one side and its corresponding mounting sidewall is the second movable gap; the movable gap formed between the second end and the limiting member is the third movable gap.
[0016] The floating component has at least one of the first movable gap, the second movable gap, and the third movable gap between it and the mounting groove and the limiting component.
[0017] In one embodiment, the mounting groove is located on the side of the first mounting member facing the force sensor, and the limiting member forms an integral structure with the first mounting member; a sliding groove is formed on the mounting sidewall; the side of the floating member has a protruding sliding block, which is used to slide in connection with the sliding groove; the mounting groove has a sliding opening in a direction parallel to the sliding groove, for the floating member to enter and exit the mounting groove.
[0018] In one embodiment, the buffer layer is configured as a foam material layer or a soft rubber material layer.
[0019] In one embodiment, there are multiple force sensors spaced circumferentially along the first mounting member and the second mounting member, and the first mounting member is provided with multiple floating members, and the floating members are connected to the force sensors one by one.
[0020] In a second aspect, one embodiment provides a force sensor assembly, comprising:
[0021] First installation component;
[0022] A second mounting component is disposed opposite to the first mounting component, and an installation gap is formed between the first mounting component and the second mounting component;
[0023] A force sensor is disposed within the mounting gap; the force sensor has a first side and a second side disposed opposite to each other, the first side of the force sensor has a sensing part, and the first side of the force sensor is fixedly connected to the first mounting member;
[0024] The first mounting member includes a floating component movably mounted on the second mounting member, with a clearance between the floating component and the second mounting member for movement of the floating component relative to the second mounting member. A second side of the force sensor is connected to the floating component to enable floating mounting of the force sensor on the second mounting member. When subjected to an external force, the first mounting member can drive the floating component to move relative to the second mounting member via the force sensor, directly transmitting the force to the sensing element of the force sensor, which detects the force and generates a signal.
[0025] In one embodiment, the spacing of the active gap is 'a', and the value of 'a' ranges from 0 to 0.1 mm.
[0026] In one embodiment, the second mounting member is provided with a mounting groove, the floating member is movably disposed in the mounting groove, and the movable gap is located between the floating member and the inner wall of the mounting groove.
[0027] In one embodiment, the mounting groove has a mounting bottom wall and a mounting side wall, the mounting side wall being arranged circumferentially around the mounting bottom wall; the floating member has two oppositely disposed ends and a circumferentially disposed side portion surrounding the ends;
[0028] When the floating component is movably disposed in the mounting groove, one end of the floating component faces the mounting bottom wall, and the side of the floating component faces the mounting side wall; a first movable gap is formed between the end of the floating component facing the mounting bottom wall and the mounting bottom wall, and / or, a second movable gap is formed between the side of the floating component and the mounting side wall. In one embodiment, the mounting groove is located on the side of the first mounting component away from the force sensor; the two ends of the floating component are a first end and a second end, respectively, and the first end is configured to face the mounting bottom wall.
[0029] The movable gap formed between the first end and the mounting bottom wall is the first movable gap; four sides of the floating member are arranged circumferentially around the end, and four mounting sidewalls are arranged circumferentially around the mounting bottom wall, and the four sides are arranged in a one-to-one correspondence with the four mounting sidewalls, and the movable gap formed between at least one side and its corresponding mounting sidewall is the second movable gap; the floating member and the mounting groove have at least one of the first movable gap and the second movable gap.
[0030] In one embodiment, the mounting groove is located on the side of the second mounting member facing the force sensor; a sliding groove is formed on the mounting sidewall; the side of the floating member has a protruding slider, which is used to slide in the sliding groove; the slider can slide in the sliding groove to drive the floating member into or out of the mounting groove.
[0031] In one embodiment, the two ends of the floating member are a first end and a second end, and both the first end and the second end are rectangular. The second end is arranged facing the mounting bottom wall. Four sides of the floating member are arranged around the end in the circumference, and four mounting sidewalls are arranged around the mounting bottom wall in the circumference, and the four sides are arranged in a one-to-one correspondence with the four mounting sidewalls.
[0032] The sliding groove is formed on two of the four mounting sidewalls, and the side opposite to the sliding groove has a raised slider for sliding connection with the opposite sliding groove; the other two of the four mounting sidewalls have openings for the floating member to enter and exit the mounting groove; the second end forms the first movable gap with the mounting bottom wall, and / or the slider of the side forms the second movable gap with the sliding groove of the mounting sidewall.
[0033] Thirdly, in one embodiment, an X-ray generating apparatus is provided, including a support assembly, a head assembly, a handle, and a force sensor assembly as described in any of the preceding claims; the head assembly is movably connected to the support assembly; a first mounting member is connected to the handle, a second mounting member is connected to the head assembly, and the force sensor is used to detect the force applied to the handle and generate a signal.
[0034] According to the X-ray generating apparatus and force sensor assembly of the above embodiments, the force sensor assembly includes a first mounting member, a second mounting member, a force sensor, and a floating member. The second mounting member is disposed opposite to the first mounting member, and a mounting gap is formed between the first and second mounting members. The force sensor is disposed within the mounting gap and has a first side and a second side disposed opposite to each other. The first side of the force sensor has a sensing element, and the second side of the force sensor is fixedly connected to the second mounting member. The floating member is movably disposed on the first mounting member, and a movable gap is formed between the floating member and the first mounting member to allow the first mounting member to move relative to the floating member. The first side of the force sensor is connected to the floating member to achieve floating mounting of the force sensor on the first mounting member. The first mounting member can move relative to the floating member under the action of an external force and transmit the force to the sensing element of the force sensor through the floating member. The force sensor is used to detect the force and generate a signal. On the one hand, when using the force sensor assembly, the force on the first mounting member and / or the second mounting member is detected and a signal is generated by the force sensor within the mounting gap. On the other hand, since the force sensor is fixedly connected to the second mounting member and floatingly mounted on the first mounting member... Compared to the traditional method of fixing the force sensor to both the first and second mounting components with screws, this reduces the internal stress on the force sensor during installation, thus preventing damage to its performance. Furthermore, the force sensor has a certain amount of floating buffer space during use, which helps reduce the failure rate of the force sensor during operation. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the structure of an X-ray generating device in one embodiment of this application;
[0036] Figure 2This is a schematic diagram of the structure of the force sensor assembly connected between the handle and the head assembly in one embodiment of this application;
[0037] Figure 3 This is a three-dimensional structural schematic diagram of a force sensor assembly in one embodiment of this application;
[0038] Figure 4 This is a structural schematic diagram of the force sensor assembly from another perspective in one embodiment of this application;
[0039] Figure 5 This is a schematic diagram of the structure of the first mounting component and the floating component cooperating in one embodiment of this application;
[0040] Figure 6 For this application Figure 5 Enlarged view of point A in the middle;
[0041] Figure 7 This is a cross-sectional view of a force sensor assembly in one embodiment of this application;
[0042] Figure 8 For this application Figure 7 Enlarged view of point B in the middle; Figure 9 This is a three-dimensional structural schematic diagram of the force sensor assembly in another embodiment of this application;
[0043] Figure 10 This is a structural schematic diagram of the force sensor assembly from another perspective in another embodiment of this application;
[0044] Figure 11 This is a structural schematic diagram of the force sensor assembly from the rear view in another embodiment of this application;
[0045] Figure 12 For this application Figure 11 Enlarged view of point C in the middle;
[0046] Figure 13 This is a cross-sectional view of a force sensor assembly in another embodiment of this application;
[0047] Figure 14 For this application Figure 13 Enlarged view at point D;
[0048] Figure 15 This is a schematic diagram of the force sensor assembly in the third embodiment of this application;
[0049] Figure 16 This is a cross-sectional view of the force sensor assembly in the third embodiment of this application;
[0050] Figure 17 For this application Figure 16 Enlarged view at point E in the middle;
[0051] Reference numerals: 100, force sensor assembly; 110, first mounting component; 120, second mounting component; 130, force sensor; 131, sensing part; 140, floating component; 141, end; 1411, first end; 1412, second end; 142, side; 1421, first side; 1422, second side; 1423, third side; 1424, fourth side; 143, slider; 150, mounting gap; 160, movement gap; 161, first movement gap; 162, second movement gap. 163. Third movable clearance; 170. Mounting groove; 171. Mounting bottom wall; 172. Mounting side wall; 1721. First mounting side wall; 1722. Second mounting side wall; 1723. Third mounting side wall; 1724. Fourth mounting side wall; 173. Slide groove; 174. Opening; 180. First screw; 190. Second screw; 1100. Limiting element; 200. Support device; 210. Top rail; 220. Telescopic column; 230. Rotating bracket; 300. Head assembly; 400. Handle. Detailed Implementation
[0052] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of this application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to this application are not shown or described in the specification. This is to avoid obscuring the core parts of this application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.
[0053] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.
[0054] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).
[0055] This embodiment provides an X-ray generating device.
[0056] Please refer to Figure 1-17 The X-ray generating device includes a force sensor assembly 100.
[0057] The X-ray generator is used to emit X-rays to the subject being examined. The force sensor assembly 100 can be used to sense the force on some handles 400 used for motion control in the X-ray generator, so as to further control the operation of the motor corresponding to the direction and / or magnitude of the force, thereby providing electric driving force or auxiliary force to the functional modules that need to move.
[0058] Please refer to Figure 1-3 In one embodiment, the X-ray generating apparatus further includes a support assembly 200, a head assembly 300, and a handle 400, the head assembly 300 being movably connected to the support assembly 200. A first mounting member 110 is connected to the handle 400, a second mounting member 120 is connected to the head assembly 300, and a force sensor 130 is used to detect the force applied to the handle 400 and generate a signal.
[0059] The support device 200 provides movable support for the head assembly 300, which emits X-rays towards the subject during X-ray generation. To ensure the X-rays emitted by the head assembly 300 are aligned with the target area of the subject, the user can apply a force to the handle 400 in the desired direction of movement before the head assembly 300 emits X-rays. A force sensor 130 detects the force on the handle 400 and generates a signal to control the corresponding motor, providing electric drive or auxiliary force for the movement of the head assembly 300. X-rays are emitted only when the head assembly 300 is aligned with the target area of the subject.
[0060] Please refer to Figure 1-3 In one embodiment, the support device 200 is configured as a suspended support.
[0061] The head assembly 300 is provided with movable support through a suspension bracket. Specifically, the suspension bracket includes a ceiling rail 210, a telescopic column 220, and a rotating bracket 230. The telescopic column 220 is movably connected to the ceiling rail 210 and can extend and retract to drive the head assembly 300 to move up and down. The rotating bracket 230 connects the head assembly 300 to the telescopic column 220 and can drive the head assembly 300 to rotate in multiple directions. Of course, in other embodiments, the bracket device 200 can also be configured as a vertical bracket.
[0062] On the other hand, this embodiment also provides a force sensor assembly 100.
[0063] Please refer to Figure 2-8 The second mounting member 120 is disposed opposite to the first mounting member 110, and a mounting gap 150 is formed between the first mounting member 110 and the second mounting member 120. A force sensor 130 is disposed within the mounting gap 150. The force sensor 130 has a first side and a second side disposed opposite to each other. The first side of the force sensor 130 has a sensing part 131, and the second side of the force sensor 130 is fixedly connected to the second mounting member 120. A floating member 140 is movably disposed on the first mounting member 110, and a movable gap 160 is formed between the floating member 140 and the first mounting member 110 to allow the first mounting member 110 to move relative to the floating member 140. The second side of the force sensor 130 is connected to the floating member 140 to achieve floating mounting of the force sensor 130 on the first mounting member 110. The first mounting member 110 can move relative to the floating member 140 under the action of an external force, and transmits the force to the sensing part 131 of the force sensor 130 through the floating member 140. The force sensor 130 is used to detect the force and generate a signal.
[0064] On the one hand, when using the force sensor assembly 100, the force sensor 130 within the mounting gap 150 detects the force acting on the first mounting member 110 and / or the second mounting member 120 and generates a signal. On the other hand, since the force sensor 130 is fixedly connected to the second mounting member 120 and floats on the first mounting member 110, compared to the conventional solution where the force sensor 130 is fixedly connected to both the first mounting member 110 and the second mounting member 120 with screws, this reduces the internal stress experienced by the force sensor 130 during installation, thereby preventing damage to the performance of the force sensor 130. Furthermore, the force sensor 130 has a certain floating buffer space during use, which helps to reduce the damage rate of the force sensor 130 during use.
[0065] It should be noted that in practical applications, the force sensor 130 typically has its sensing part 131 protruding from the side facing the first mounting member 110. Therefore, connecting the floating member 140 to the first side of the force sensor 130 allows the force on the first mounting member 110 to be more easily transmitted to the sensing part 131 of the force sensor 130 via the floating member 140. Furthermore, the force sensor 130 can remain fixed to the second mounting member 120 without needing to move a distance with the first mounting member 110, the distance of which depends on the size of the movement gap 160. This improves the sensitivity of the force sensor 130 in detecting force on the first mounting member 110, thereby enhancing the user's operational sensitivity when operating the handle 400 after connecting the first mounting member 110 to the handle 400.
[0066] Please refer to Figure 2-8In one embodiment, the spacing of the active gap 160 is a, and the value of a ranges from 0 to 0.1 mm.
[0067] Setting the movable gap 160 within the aforementioned small range serves two purposes. First, it provides a buffer space for the floating component 140, thereby reducing the internal stress of the force sensor 130 during installation and lowering its damage rate during use. Second, the smaller gap prevents the user from feeling any wobbling when operating the handle 400 connected to the force sensor assembly 100. Specifically, the amount of movable gap 160 needs to be calculated using a dimensional chain, and the machining accuracy of the first mounting component 110, the second mounting component 120, and the floating component 140 must be carefully controlled to ensure that the spacing of the movable gap 160 remains within the aforementioned range.
[0068] Please refer to Figure 2-8 In one embodiment, the first mounting member 110 is provided with a mounting groove 170, the floating member 140 is movably disposed in the mounting groove 170, and the movable gap 160 is located between the floating member 140 and the inner wall of the mounting groove 170.
[0069] The floating member 140 is movably mounted on the second mounting member 120 via the mounting groove 170. On the one hand, the space within the mounting groove 170 limits the range of motion of the floating member 140; on the other hand, it facilitates the setting of an movable gap 160 between the floating member 140 and the inner wall of the mounting groove 170. Of course, in other embodiments, the mounting groove 170 can be replaced by a positioning protrusion provided circumferentially along the floating member 140.
[0070] Please refer to Figure 2-8 In one embodiment, the mounting groove 170 has a mounting bottom wall 171 and a mounting side wall 172, the mounting side wall 172 surrounding the mounting bottom wall 171 circumferentially. The floating member 140 has two opposing ends 141 and a side portion 142 circumferentially surrounding the ends 141. When the floating member 140 is movably disposed in the mounting groove 170, one end 141 of the floating member 140 faces the mounting bottom wall 171, and the side portion 142 of the floating member 140 faces the mounting side wall 172. A first movable gap 161 is formed between the end 141 of the floating member 140 facing the mounting bottom wall 171 and the mounting bottom wall 171, and / or, a second movable gap 162 is formed between the side portion 142 of the floating member 140 and the mounting side wall 172.
[0071] The floating member 140's range of motion in the direction perpendicular to the second mounting member 120 is limited by the mounting base wall 171, and its range of motion in the direction parallel to the second mounting member 120 is limited by the mounting side wall 172. The movement gap 160 can be provided between the end 141 of the floating member 140 facing the mounting base wall 171 and the mounting base wall 171, i.e., a first movement gap 161. Alternatively, it can be provided between the side portion 142 of the floating member 140 and the mounting side wall 172, i.e., a second movement gap 162. Or, movement gaps 160 can be provided at both of these locations.
[0072] Please refer to Figure 2-8 In one embodiment, the first mounting member 110 is provided with a limiting member 1100, which is located on the side of the floating member 140 away from the mounting bottom wall 171, and is used to prevent the floating member 140 from disengaging from the side where the limiting member 1100 is located from the mounting groove 170, and a third movable gap 163 is formed between the floating member 140 and the limiting member 1100.
[0073] By adding the limiting member 1100, on the one hand, the limiting member 1100 can prevent the floating member 140 from disengaging from the side where the limiting member 1100 is located from the mounting groove 170, thereby restricting the movement space of the floating member 140 within the mounting groove 170. On the other hand, when the user pulls the handle 400 away from the floating member 140, the limiting member 1100 can transmit the force to the floating member 140, and then to the force sensor 130 through the floating member 140.
[0074] Please refer to Figure 2-8 In one embodiment, the mounting groove 170 is located on the side of the first mounting member 110 facing the force sensor 130, and the limiting member 1100 is detachably connected to the first mounting member 110. The two ends 141 of the floating member 140 are respectively a first end 1411 and a second end 1412. The first end 1411 is positioned facing the mounting bottom wall 171, and the second end 1412 is positioned facing the limiting member 1100. The movable gap 160 formed between the first end 1411 and the mounting bottom wall 171 is the first movable gap 161. Four side portions of the floating member 140 are circumferentially arranged around the end 141, and four mounting side walls 172 are circumferentially arranged around the mounting bottom wall 171. Each of the four side portions 142 corresponds to one of the four mounting side walls 172, and the movable gap 160 formed between at least one side portion 142 and its corresponding mounting side wall 172 is the second movable gap 162. The movable gap 160 formed between the second end 1412 and the limiting member 1100 is the third movable gap 163. The floating member 140 has at least one of the first movable gap 161, the second movable gap 162 and the third movable gap 163 between the mounting groove 170 and the limiting member 1100.
[0075] The movement space of the floating member 140 in the direction perpendicular to the mounting base 171 is restricted by the cooperation between the first end 1411 and the mounting bottom wall 171, and the cooperation between the second end 1412 and the limiting member 1100. Since the limiting member 1100 is detachably connected to the first mounting member 110, when assembling the force sensor assembly 100, the floating member 140 can be installed in the mounting groove 170 first, and then the limiting member 1100 can be detachably installed in the first mounting member 110, thereby preventing the floating member 140 from leaving the mounting groove 170. Furthermore, the four sides 142 of the floating member 140 and the four corresponding mounting side walls 172 in the mounting groove 170 can all be used to form an active gap 160, that is, a second active gap 162. Therefore, depending on the actual needs, at least one of the above six positions can be selected to set the movable gap 160, that is, the floating member 140 and the mounting groove 170 can have at least one of the first movable gap 161, the second movable gap 162 and the third movable gap 163.
[0076] Specifically, in this embodiment, the side portion 142 of the floating member 140 can be configured as an arc-shaped or rectangular boss. In other embodiments, the four sides 142 of the floating member 140 can also be configured as a rectangular arrangement. Similarly, the shape of the mounting groove 170 can also be configured as other shapes that are compatible with the shape of the floating member 140.
[0077] Please refer to Figure 2-8 In one embodiment, the mounting groove 170 is located on the side of the first mounting member 110 facing the force sensor 130, and the limiting member 1100 is integrally formed with the first mounting member 110. A sliding groove (not shown) is formed on the mounting sidewall 172. The side portion 142 of the floating member 140 has a protruding sliding block (not shown), which is used to slide in connection with the sliding groove. The mounting groove 170 has a sliding opening (not shown) in a direction parallel to the sliding groove for the floating member 140 to enter and exit the mounting groove 170.
[0078] Since the limiting member 1100 and the first mounting member 110 form an integral structure, when assembling the force sensor assembly 100, the floating member 140 can be inserted into the sliding groove from the sliding opening, so that the sliding block cooperates with the sliding groove, thereby allowing the floating member 140 to slide into the mounting groove 170 along the sliding groove.
[0079] Please refer to Figure 2-8 In one embodiment, the active gap 160 is filled with a buffer layer (not shown).
[0080] By filling the movable gap 160 with a buffer layer, on the one hand, the buffer layer can improve the cushioning effect on the floating member 140 when it moves within the movable gap 160. On the other hand, since the buffer layer provides a certain supporting force for the floating member 140, the user is less likely to feel the handle 400 shaking when operating the handle 400 connected to the force sensor assembly 100. Therefore, when the movable gap 160 is filled with a buffer layer, the spacing of the movable gap 160 can be set slightly larger, which helps to reduce the difficulty of controlling the dimensional chain precision of the movable gap 160.
[0081] Please refer to Figure 2-8 In one embodiment, the buffer layer is configured as a foam material layer or a soft rubber material layer.
[0082] Both foam and soft rubber materials have good elasticity. When squeezed by the floating part 140, they can undergo elastic deformation and provide cushioning force to the floating part 140, thereby improving the cushioning effect of the floating part 140 when it moves within the movement gap 160.
[0083] Please refer to Figure 2-8 In one embodiment, multiple force sensors 130 are spaced circumferentially along the first mounting member 110 and the second mounting member 120. Multiple floating members 140 are provided on the first mounting member 110, and each floating member 140 is connected to a force sensor 130 in a one-to-one correspondence. On one hand, by providing multiple force sensors 130 between the first mounting member 110 and the second mounting member 120, the force conditions at multiple locations on the first mounting member 110 and / or the second mounting member 120 can be collected through these multiple force sensors 130, providing more and more accurate force information for subsequent calculations and hardware control, thereby further improving control accuracy. On the other hand, since each force sensor 130 is connected to a corresponding floating member 140, it helps to reduce the internal stress of each force sensor 130 during installation and lower the damage rate of each force sensor 130 during use.
[0084] Specifically, in this embodiment, the number of force sensors 130 is configured to be four, and when the first mounting member 110 and the second mounting member 120 are configured as a rectangle, the four force sensors 130 are respectively disposed on the four sides of the rectangle. Of course, in other embodiments, the number of force sensors 130 can also be configured to be three, five or other suitable numbers.
[0085] On the other hand, this embodiment also provides a force sensor assembly 100.
[0086] Please refer to Figure 2 and 9-14, the force sensor assembly 100 includes a first mounting member 110, a second mounting member 120, a force sensor 130, and a floating member 140. The second mounting member 120 is disposed opposite to the first mounting member 110, and a mounting gap 150 is formed between the first mounting member 110 and the second mounting member 120. The force sensor 130 is disposed within the mounting gap 150. The force sensor 130 has a first side and a second side disposed opposite to each other. The first side of the force sensor 130 has a sensing part 131, and the first side of the force sensor 130 is fixedly connected to the first mounting member 110. The floating member 140 is movably disposed on the second mounting member 120, and a movable gap 160 is formed between the floating member 140 and the second mounting member 120 for allowing the floating member 140 to move relative to the second mounting member 120. The second side of the force sensor 130 is connected to the floating member 140 to achieve floating mounting of the force sensor 130 on the second mounting member 120. When subjected to external force, the first mounting member 110 can drive the floating member 140 to move relative to the second mounting member 120 through the force sensor 130, and directly transmit the force to the sensing part 131 of the force sensor 130. The force sensor 130 is used to detect the force and generate a signal.
[0087] On the one hand, when using the force sensor assembly 100, the force sensor 130 within the mounting gap 150 detects the force acting on the first mounting member 110 and / or the second mounting member 120 and generates a signal. On the other hand, since the force sensor 130 is fixedly connected to the first mounting member 110 and floats on the second mounting member 120, compared to the conventional solution where the force sensor 130 is fixedly connected to both the first mounting member 110 and the second mounting member 120 with screws, this reduces the internal stress experienced by the force sensor 130 during installation, thereby preventing damage to the performance of the force sensor 130. Furthermore, the force sensor 130 has a certain floating buffer space during use, which helps to reduce the damage rate of the force sensor 130 during use.
[0088] Please refer to Figure 9-14 Specifically, the force sensor 130 can be fixedly connected to the first mounting member 110 by the first screw 180, and the force sensor 130 can be connected to the floating member 140 by the second screw 190. The first mounting member 110 and the second mounting member 120 can be configured as plate structures.
[0089] Please refer to Figure 9-14 In one embodiment, the spacing of the active gap 160 is a, and the value of a ranges from 0 to 0.1 mm.
[0090] Setting the movable gap 160 within the aforementioned small range serves two purposes. First, it provides a buffer space for the floating component 140, thereby reducing the internal stress of the force sensor 130 during installation and lowering its damage rate during use. Second, the smaller gap prevents the user from feeling any wobbling when operating the handle 400 connected to the force sensor assembly 100. Specifically, the amount of movable gap 160 needs to be calculated using a dimensional chain, and the machining accuracy of the first mounting component 110, the second mounting component 120, and the floating component 140 must be carefully controlled to ensure that the spacing of the movable gap 160 remains within the aforementioned range.
[0091] Please refer to Figure 9-14 In one embodiment, the second mounting member 120 is provided with a mounting groove 170, the floating member 140 is movably disposed in the mounting groove 170, and the movable gap 160 is located between the floating member 140 and the inner wall of the mounting groove 170.
[0092] The floating member 140 is movably installed on the second mounting member 120 through the mounting groove 170. On the one hand, the space in the mounting groove 170 limits the range of motion of the floating member 140. On the other hand, it also facilitates the setting of an movable gap 160 between the floating member 140 and the inner wall of the mounting groove 170.
[0093] Please refer to Figure 9-14 In one embodiment, the mounting groove 170 has a mounting bottom wall 171 and a mounting side wall 172, the mounting side wall 172 surrounding the mounting bottom wall 171 circumferentially. The floating member 140 has two opposing ends 141 and a side portion 142 circumferentially surrounding the ends 141. When the floating member 140 is movably disposed in the mounting groove 170, one end 141 of the floating member 140 faces the mounting bottom wall 171, and the side portion 142 of the floating member 140 faces the mounting side wall 172. A first movable gap 161 is formed between the end 141 of the floating member 140 facing the mounting bottom wall 171 and the mounting bottom wall 171, and / or, a second movable gap 162 is formed between the side portion 142 of the floating member 140 and the mounting side wall 172.
[0094] The floating member 140's range of motion in the direction perpendicular to the second mounting member 120 is limited by the mounting base wall 171, and its range of motion in the direction parallel to the second mounting member 120 is limited by the mounting side wall 172. The movement gap 160 can be provided between the end 141 of the floating member 140 facing the mounting base wall 171 and the mounting base wall 171, i.e., a first movement gap 161; or it can be provided between the side portion 142 of the floating member 140 and the mounting side wall 172, i.e., a second movement gap 162; or it can be provided at both of the above locations.
[0095] Please refer to Figure 9-14 In one embodiment, the mounting slot 170 is located on one side of the second mounting member 120 away from the force sensor 130.
[0096] When installing the force sensor 130, the force sensor 130 and the floating component 140 are respectively positioned on opposite sides of the second mounting component 120, and then the force sensor 130 is connected to the floating component 140, thereby achieving floating installation of the force sensor 130 on the second mounting component 120. This improves the space utilization of the side of the second mounting component 120 away from the force sensor 130, and provides more space for placing the force sensor 130 in the installation gap 150.
[0097] Please refer to Figure 9-14 In one embodiment, the two ends 141 of the floating member 140 are a first end 1411 and a second end 1412, respectively. The first end 1411 is positioned toward the mounting base wall 171. A movable gap 160 formed between the first end 1411 and the mounting base wall 171 is a first movable gap 161. Four side portions 142 are circumferentially arranged around the end 141 of the floating member 140, and four mounting side walls 172 are circumferentially arranged around the mounting base wall 171, with each of the four side portions 142 corresponding to one of the four mounting side walls 172. A movable gap 160 formed between at least one side portion 142 and its corresponding mounting side wall 172 is a second movable gap 162. The floating member 140 and the mounting groove 170 have at least one of the first movable gap 161 and the second movable gap 162.
[0098] This allows for the formation of movable gaps 160, i.e., second movable gaps 162, between the four sides 142 of the floating member 140 and the corresponding four mounting sidewalls 172 within the mounting groove 170. Furthermore, a movable gap 160, i.e., a first movable gap 161, can also be formed between the first end 1411 of the floating member 140 and the mounting bottom wall 171. Therefore, movable gaps 160 can be set at at least one of the aforementioned locations according to actual needs.
[0099] Specifically, the shape of the floating member 140 can be set to a rectangle. Of course, in other embodiments, the shape of the floating member 140 is not limited to a rectangle. For example, the floating member 140 can also be configured as a disk or other suitable shape. Similarly, the shape of the mounting groove 170 can also be set to other shapes that are compatible with the shape of the floating member 140.
[0100] Please refer to Figure 15-17 In one embodiment, the mounting slot 170 is located on the side of the second mounting member 120 facing the force sensor 130.
[0101] When installing the force sensor 130, the floating member 140 is first installed onto the side of the second mounting member 120 facing the force sensor 130. Then, the force sensor 130 is placed on the floating member 140 and connected to the floating member 140. This allows the second mounting member 120 to provide some protection for the floating member 140 and the mounting groove 170 located on the inner side, and also makes the outer side of the second mounting member 120 more flat.
[0102] Please refer to Figure 15-17 In one embodiment, a groove 173 is formed on the mounting sidewall 172. The side 142 of the floating member 140 has a protruding slider 143 for sliding connection with the groove 173. The slider 143 is capable of sliding within the groove 173 to drive the floating member 140 into or out of the mounting groove 170.
[0103] When installing the floating component 140, the slider 143 can be embedded in the slide groove 173 and slid along the slide groove 173 to drive the floating component 140 into the mounting groove 170. Conversely, when removing the floating component 140, the slider 143 can be slid in the opposite direction within the slide groove 173 to disengage from the slide groove 173, thereby driving the floating component 140 out of the mounting groove 170. That is, through the cooperation between the slider 143 and the slide groove 173, the installer can easily install and remove the floating component 140 within the mounting groove 170, and the position between the slider 143 and the slide groove 173 can also be used to set the movement clearance 160.
[0104] Please refer to Figure 15-17 In one embodiment, the two ends 141 of the floating member 140 are a first end 1411 and a second end 1412, both of which are rectangular. The second end 1412 is positioned towards the mounting base wall 171. Four sides 142 of the floating member 140 are circumferentially arranged around the ends 141, and four mounting sidewalls 172 are circumferentially arranged around the mounting base wall 171, with each side 142 corresponding to one of the four mounting sidewalls 172. Two opposing mounting sidewalls 172 have grooves 173 formed on them, and the side 142 opposite to the grooves 173 has a protruding slider 143 for slidingly connecting with the opposite groove. The other two opposing mounting sidewalls 172 have openings 174 for the floating member 140 to enter and exit the mounting groove 170. A first movable gap 161 is formed between the second end 1412 and the mounting bottom wall 171, and / or, a second movable gap 162 is formed between the slider 143 of the side portion 142 and the groove 173 of the mounting side wall 172.
[0105] Because the floating member 140 is configured as a rectangular body, and the mounting groove 170 has an opening 174 in a direction parallel to the slide groove 173, the slider 143 can enter or exit the slide groove 173 from the side where the opening 174 is located, and the floating member 140 can enter or exit the mounting groove 170 from the side where the opening 174 is located. Furthermore, when the floating member 140 is installed in the mounting groove 170, the movable clearance 160 can be located between the second end 1412 and the mounting bottom wall 171, i.e., the first movable clearance 161; it can also be located between the slider 143 and the slide groove 173, i.e., the second movable clearance 162; or it can be provided at both of the above positions.
[0106] Please refer to Figure 9-14 In one embodiment, there are multiple force sensors 130 spaced apart along the circumference of the first mounting member 110 and the second mounting member 120. The second mounting member 120 is provided with multiple floating members 140, and the floating members 140 are connected to the force sensors 130 one by one.
[0107] On the one hand, by setting multiple force sensors 130 between the first mounting member 110 and the second mounting member 120, the force conditions at multiple locations on the first mounting member 110 and / or the second mounting member 120 can be collected through the multiple force sensors 130, so as to provide more and more accurate force information for subsequent calculation processing and hardware control, thereby further improving control accuracy. On the other hand, since each force sensor 130 is connected to a corresponding floating member 140, it helps to reduce the internal stress of each force sensor 130 during installation and reduce the damage rate of each force sensor 130 during use.
[0108] Specifically, in this embodiment, the number of force sensors 130 is configured to be four, and when the first mounting member 110 and the second mounting member 120 are configured as a rectangle, the four force sensors 130 are respectively disposed on the four sides of the rectangle. Of course, in other embodiments, the number of force sensors 130 can also be configured to be three, five or other suitable numbers.
[0109] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.
Claims
1. A force sensor assembly, characterized in that, include: First installation component; A second mounting component is disposed opposite to the first mounting component, and an installation gap is formed between the first mounting component and the second mounting component; A force sensor is disposed within the mounting gap; the force sensor has a first side and a second side disposed opposite to each other, the first side of the force sensor has a sensing part, and the second side of the force sensor is fixedly connected to the second mounting member; The system includes a floating component movably mounted on the first mounting component, with a clearance between the floating component and the first mounting component to allow the first mounting component to move relative to the floating component. A first side of the force sensor is connected to the floating component to enable floating mounting of the force sensor on the first mounting component. The first mounting component can move relative to the floating component under external force and transmit the force to the sensing part of the force sensor via the floating component. The force sensor detects the force and generates a signal.
2. The force sensor assembly as described in claim 1, characterized in that, The spacing of the active gap is denoted as 'a', and the value of 'a' ranges from 0 to 0.1 mm.
3. The force sensor assembly as described in claim 1, characterized in that, The first mounting component is provided with a mounting groove, the floating component is movably disposed in the mounting groove, and the movable gap is located between the floating component and the inner wall of the mounting groove.
4. The force sensor assembly as described in claim 3, characterized in that, The mounting groove has a mounting bottom wall and a mounting side wall, the mounting side wall being arranged circumferentially around the mounting bottom wall; the floating member has two oppositely arranged ends, and a side portion arranged circumferentially around the ends; When the floating component is movably disposed in the mounting groove, one end of the floating component faces the mounting bottom wall, and the side of the floating component faces the mounting side wall; a first movable gap is formed between the end of the floating component facing the mounting bottom wall and the mounting bottom wall, and / or, a second movable gap is formed between the side of the floating component and the mounting side wall.
5. The force sensor assembly as claimed in claim 4, characterized in that, The first mounting component is provided with a limiting component, which is located on the side of the floating component away from the mounting bottom wall, and is used to prevent the floating component from detaching from the mounting groove from the side where the limiting component is located, and a third movable gap is formed between the floating component and the limiting component.
6. The force sensor assembly as claimed in claim 5, characterized in that, The mounting groove is located on the side of the first mounting member facing the force sensor, and the limiting member is detachably connected to the first mounting member; the two ends of the floating member are a first end and a second end, the first end being set towards the mounting bottom wall, and the second end being set towards the limiting member; The movable gap formed between the first end and the mounting bottom wall is the first movable gap; four sides of the floating member are arranged circumferentially around the end, and four mounting sidewalls are arranged circumferentially around the mounting bottom wall, with the four sides corresponding to the four mounting sidewalls one-to-one; the movable gap formed between at least one side and its corresponding mounting sidewall is the second movable gap; the movable gap formed between the second end and the limiting member is the third movable gap. The floating component has at least one of the first movable gap, the second movable gap, and the third movable gap between it and the mounting groove and the limiting component.
7. The force sensor assembly as claimed in claim 5, characterized in that, The mounting groove is located on the side of the first mounting member facing the force sensor, and the limiting member forms an integral structure with the first mounting member; a sliding groove is formed on the mounting side wall; the side of the floating member has a protruding sliding block, which is used to slide with the sliding groove; the mounting groove has a sliding opening in a direction parallel to the sliding groove, for the floating member to enter and exit the mounting groove.
8. The force sensor assembly as described in any one of claims 1-7, characterized in that, The active gap is filled with a buffer layer.
9. The force sensor assembly as described in any one of claims 1-7, characterized in that, The force sensors are spaced in multiples along the circumference of the first mounting member and the second mounting member. The first mounting member is provided with multiple floating members, and the floating members are connected to the force sensors one by one.
10. A force sensor assembly, characterized in that, include: First installation component; A second mounting component is disposed opposite to the first mounting component, and an installation gap is formed between the first mounting component and the second mounting component; A force sensor is disposed within the mounting gap; the force sensor has a first side and a second side disposed opposite to each other, the first side of the force sensor has a sensing part, and the first side of the force sensor is fixedly connected to the first mounting member; The first mounting member includes a floating component movably mounted on the second mounting member, with a clearance between the floating component and the second mounting member for movement of the floating component relative to the second mounting member. A second side of the force sensor is connected to the floating component to achieve floating mounting of the force sensor on the second mounting member. When subjected to an external force, the first mounting member can drive the floating component to move relative to the second mounting member via the force sensor, transmitting the force to the sensing element of the force sensor, which detects the force and generates a signal.
11. The force sensor assembly as claimed in claim 10, characterized in that, The spacing of the active gap is denoted as 'a', and the value of 'a' ranges from 0 to 0.1 mm.
12. The force sensor assembly as claimed in claim 10, characterized in that, The second mounting component is provided with a mounting groove, and the floating component is movably disposed in the mounting groove. The movable gap is located between the floating component and the inner wall of the mounting groove.
13. The force sensor assembly as claimed in claim 12, characterized in that, The mounting groove has a mounting bottom wall and a mounting side wall, the mounting side wall being arranged circumferentially around the mounting bottom wall; the floating member has two oppositely arranged ends, and a side portion arranged circumferentially around the ends; When the floating component is movably disposed in the mounting groove, one end of the floating component faces the mounting bottom wall, and the side of the floating component faces the mounting side wall; a first movable gap is formed between the end of the floating component facing the mounting bottom wall and the mounting bottom wall, and / or, a second movable gap is formed between the side of the floating component and the mounting side wall.
14. The force sensor assembly as claimed in claim 13, characterized in that, The mounting groove is located on the side of the first mounting member away from the force sensor; the two ends of the floating member are the first end and the second end, respectively, with the first end facing the mounting bottom wall; The movable gap formed between the first end and the mounting bottom wall is the first movable gap; four sides of the floating member are arranged circumferentially around the end, and four mounting sidewalls are arranged circumferentially around the mounting bottom wall, and the four sides are arranged in a one-to-one correspondence with the four mounting sidewalls, and the movable gap formed between at least one side and its corresponding mounting sidewall is the second movable gap; the floating member and the mounting groove have at least one of the first movable gap and the second movable gap.
15. The force sensor assembly as claimed in claim 13, characterized in that, The mounting groove is located on the side of the second mounting member facing the force sensor; a sliding groove is formed on the mounting sidewall; the side of the floating member has a protruding slider, which is used to slide in the sliding groove; the slider can slide in the sliding groove to drive the floating member into or out of the mounting groove.
16. The force sensor assembly as claimed in claim 15, characterized in that, The two ends of the floating component are a first end and a second end, and both the first end and the second end are rectangular. The second end is set towards the mounting bottom wall. The floating component has four sides arranged around the end in the circumference. The mounting sidewalls have four sides arranged around the mounting bottom wall in the circumference. The four sides are arranged in a one-to-one correspondence with the four mounting sidewalls. The sliding groove is formed on two of the four mounting sidewalls, and the side opposite to the sliding groove has a raised slider for sliding connection with the opposite sliding groove; the other two of the four mounting sidewalls have openings for the floating member to enter and exit the mounting groove; the second end forms the first movable gap with the mounting bottom wall, and / or the slider of the side forms the second movable gap with the sliding groove of the mounting sidewall.
17. An X-ray generating apparatus, characterized in that, The device includes a support assembly, a head assembly, a handle, and a force sensor assembly as described in any one of claims 1-16; the head assembly is movably connected to the support assembly; a first mounting member is connected to the handle, a second mounting member is connected to the head assembly, and the force sensor is used to detect the force applied to the handle and generate a signal.