Sensor structure and electronic device

Abstract

The application provides a sensor structure and an electronic device. The sensor structure comprises a mounting base, a sensor assembly, an extension assembly and a hook assembly. The mounting base has a receiving cavity. The sensor assembly comprises a load cell fixed on the mounting base and a connecting head arranged at one end of the load cell. The sensor assembly is suspended in the receiving cavity. One end of the extension assembly is rotatably connected to the connecting head. The extension assembly can extend in a direction away from the connecting head or retract in a direction close to the connecting head. The hook assembly is rotatably connected to one end of the extension assembly away from the connecting head. The sensor structure provided by the application is small in size, foldable, more beautiful and more concealed, the force arm of the extension assembly is consistent, the accuracy of weighing is improved, and the sensor structure is convenient to side-mount.

Description

Technical Field

[0001] This application relates to the field of weighing equipment technology, and in particular to a sensor structure and electronic device. Background Technology

[0002] In the fields of biochemical analysis and medicine, weighing equipment is frequently used to weigh biological samples. For example, in the cell sorting process, weighing sensors are required in the sorting equipment to weigh the cell samples. Currently, most of these weighing sensors used in biochemical analysis and medicine are hook-type (such as hanging scales) or balance-type (such as electronic scales).

[0003] However, hook-type load cells tend to have more liquid residue in their tubing and are easily visible when not in use, making them difficult to conceal. Balance-type load cells, on the other hand, are bulky, require more installation space, making them unsuitable for small equipment, and their lower accuracy fails to meet high-precision requirements. Utility Model Content

[0004] In view of this, in order to solve at least one of the above defects, this application needs to propose a weighing sensor structure that is flexible in installation, compact in size, can be concealed, and has high accuracy.

[0005] In addition, this application also provides an electronic device that uses this sensor structure.

[0006] In a first aspect, embodiments of this application provide a sensor structure, including: a mounting base, a sensor assembly, a telescopic assembly, and a hook assembly. The mounting base has a receiving cavity with an opening. The sensor assembly includes a weighing sensor fixed to the mounting base and a connector disposed on the weighing sensor near the opening. The sensor assembly is suspended within the receiving cavity. One end of the telescopic assembly is rotatably connected to the connector, and the telescopic assembly can extend away from the connector or retract towards the connector. The hook assembly is rotatably connected to the end of the telescopic assembly away from the connector.

[0007] In some possible embodiments, the telescopic assembly includes a telescopic sleeve and a telescopic arm, one end of the telescopic sleeve being rotatably connected to the connector head, the telescopic sleeve having a telescopic cavity, the opening of the telescopic cavity being located at the end of the telescopic sleeve away from the connector head, and the telescopic arm being disposed within the telescopic cavity and being slidable along the telescopic cavity to extend or retract into the telescopic cavity.

[0008] In some possible embodiments, the telescopic arm has a mounting hole at one end near the connector, and the telescopic assembly further includes a positioning unit disposed in the mounting hole, the positioning unit being used to limit the extension or retraction distance of the telescopic arm relative to the telescopic sleeve.

[0009] In some possible embodiments, the positioning unit includes a positioning element, an elastic element, and a positioning ball. The positioning element is located within the mounting hole. One end of the elastic element abuts against the positioning element. The positioning ball is located at the end of the elastic element away from the positioning element. The positioning ball can extend or retract from the mounting hole under the elastic force of the elastic element. The telescopic sleeve has a first positioning groove at the end near the connector and a second positioning groove at the end away from the connector. The positioning ball can be embedded in the first positioning groove and the second positioning groove.

[0010] In some possible embodiments, the connector includes a first connecting part and a second connecting part that are connected to each other. The first connecting part is rotatably connected to the telescopic assembly, and the second connecting part is connected to the weighing sensor. The extension direction of the receiving cavity is defined as a first direction. The first connecting part extends along the first direction, and the second connecting part extends along a second direction perpendicular to the first direction. An L-shaped receiving space is formed between the first connecting part and the second connecting part. The telescopic assembly drives the hook assembly to be rotatably stored in the receiving space.

[0011] In some possible embodiments, the side surface of the telescopic arm is provided with a limiting groove along the telescopic direction, and a limiting member is provided through the telescopic sleeve, the limiting member being embedded in the limiting groove and being able to slide along the limiting groove.

[0012] In some possible embodiments, the telescopic component rotates at an angle of 0 to 90 degrees relative to the connector.

[0013] In some possible embodiments, the rotation angle of the hook assembly relative to the telescopic assembly is 0 to 300 degrees.

[0014] In some possible embodiments, the mounting base includes a mounting frame, a base plate, and a cover plate. The base plate and the cover plate are respectively located at opposite ends of the mounting frame and together with the mounting frame form the receiving cavity. The weighing sensor is fixed on the base plate and extends toward the cover plate. The connector is located inside the receiving cavity and close to the cover plate.

[0015] Secondly, this application provides an electronic device including a housing and a sensor structure as described above. The housing includes a sidewall and a cavity enclosed by the sidewall. The mounting base is mounted on the sidewall and extends through the sidewall into the cavity. The telescopic assembly and the hook assembly are located outside the sidewall.

[0016] The sensor structure provided in this application embodiment features a telescopic component that can be folded and stored within a housing cavity, reducing the overall size of the sensor structure. It can also be neatly and discreetly stored away when not in use. Furthermore, the telescopic arm of the component can be fixed using a positioning unit, ensuring consistent extension and improving the accuracy of weighing measurements. Additionally, the sensor structure is small in size, allowing the mounting base to be embedded entirely into the side wall of the equipment for easy side mounting. This makes it suitable for equipment with limited space and allows for installation below or above pipelines, shortening pipeline length and making it suitable for applications requiring reduced residual liquid in pipelines. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a sensor structure according to an embodiment of this application.

[0019] Figure 2 for Figure 1 A partial cross-sectional structural diagram of the sensor.

[0020] Figure 3 for Figure 1 Exploded view of the sensor structure.

[0021] Figure 4 for Figure 3 A schematic diagram of the structure of the telescopic component.

[0022] Figure 5 This is a schematic diagram of the sensor structure in a stowed state according to one embodiment of this application.

[0023] Figure 6 This is a schematic diagram of the sensor structure in the extension process in one embodiment of this application.

[0024] Figure 7 This is a schematic diagram of the sensor structure in the extended state in one embodiment of this application.

[0025] Figure 8 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application.

[0026] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that when a component is described as "fixed to" or "mounted to" another component, it can be directly on the other component or may be interspersed with an intermediate component. When a component is described as "set to" another component, it can be directly set on the other component or may be interspersed with an intermediate component. The term "and / or" as used herein includes all and any combination of one or more of the associated listed items.

[0029] Please see Figure 1 As shown, this application embodiment provides a sensor structure 100, including: a mounting base 1, a sensor assembly 2, a telescopic assembly 3, and a hook assembly 4. The mounting base 1 has a receiving cavity 10 with an opening 101. The sensor assembly 2 includes a weighing sensor 21 fixed on the mounting base 1 and a connector 22 disposed on the weighing sensor 21 near the opening 101. The sensor assembly 2 is suspended within the receiving cavity 10. One end of the telescopic assembly 3 is rotatably connected to the connector 22. The telescopic assembly 3 can extend away from the connector 22 or retract towards the connector 22 to achieve telescopic movement. The hook assembly 4 is rotatably connected to the end of the telescopic assembly 3 away from the connector 22.

[0030] Please see Figures 1 to 3 As shown, the mounting base 1 includes a mounting frame 11, a base plate 12, and a cover plate 13. The base plate 12 and the cover plate 13 are respectively located at opposite ends of the mounting frame 11, and together with the mounting frame 11, they form a receiving cavity 10. An opening 101 is provided through the cover plate 13. One end of the load cell 21 is fixed to the base plate 12 and extends towards the cover plate 13. The connector 22 is close to the cover plate 13 and located inside the receiving cavity 10, and does not protrude from the receiving cavity 10. Only one end of the entire sensor assembly 2 is fixed to the base plate 12, and the other parts do not contact the inner wall of the receiving cavity 10. In this way, the telescopic component 3, the hook component 4, and the sensor assembly 2 are connected together to form a cantilever state, which will not contact any other part of the mounting base 1 except for the base plate 12. At the same time, the mounting base 1 also protects this cantilever from external influences.

[0031] In some embodiments, the mounting frame 11 is generally a hollow rectangular frame, the base plate 12 is disposed at one open end of the rectangular frame, the cover plate 13 is disposed at the other open end of the rectangular frame, and the cover plate 13 has a rectangular opening 101 communicating with the hollow portion of the mounting frame 11.

[0032] In some embodiments, the base plate 12 is detachably connected to the mounting frame 11 to facilitate the installation of the sensor assembly 2 on the base plate 12.

[0033] In some embodiments, the cover plate 13 and the mounting frame 11 can be an integral structure, which can reduce the complexity of assembly. Moreover, the cover plate 13 can be connected to the mounting plate 200 of the device on which the sensor structure 100 is applied, so that the sensor structure 100 can be mounted on the mounting plate 200. The mounting frame 11 and the base plate 12 can be embedded in the inner side of the mounting plate 200 facing the device, while the opening 101 of the cover plate 13 faces outward, which facilitates the telescopic use of the telescopic component 3, and realizes the hidden side mounting of the sensor structure 100.

[0034] Please see Figure 2 and Figure 3 As shown, the load cell 21 is the main body of the sensor assembly 2. With the corresponding sensor controller, it can transmit the weight value to the industrial control part of the applied equipment. The load cell 21 itself can realize functions such as calibration and zeroing.

[0035] Please see Figure 2 and Figure 3 As shown, connector 22 is mainly used to connect load cell 21 and telescopic assembly 3. Connector 22 includes a first connecting part 23 and a second connecting part 24 that are connected to each other. The first connecting part 23 is rotatably connected to telescopic assembly 3, and the second connecting part 24 is connected to load cell 21. The extension direction of the receiving cavity 10 is defined as the first direction X (or the extension direction of telescopic assembly 3 is the first direction X). The first connecting part 23 extends along the first direction X, and the second connecting part 24 extends along the second direction Z perpendicular to the first direction X. The first connecting part 23 and the second connecting part 24 form an L-shaped receiving space 20. Telescopic assembly 3 drives hook assembly 4 to rotate and be stored in the receiving space 20. Since connector 22 is located inside the receiving cavity 10 of mounting base 1, and the receiving space 20 is also located inside the receiving cavity 10, when telescopic assembly 3 is retracted, it can rotate relative to connector 22 to the receiving space 20 for storage. Hook assembly 4 can rotate relative to telescopic assembly 3 or be stored in the receiving cavity 10. This design allows the telescopic component 3 and hook component 4 to be folded and stored when the sensor structure 100 is not in use, which reduces the overall size of the sensor structure 100 while improving aesthetics and concealment.

[0036] In some embodiments, the first connecting portion 23 includes two connecting pieces 25 arranged side by side along the third direction Y and a bottom 26 connecting the two connecting pieces 25. The two connecting pieces 25 and the bottom 26 form an upward-opening U-shaped groove. One end of the telescopic component 3 is embedded in the U-shaped groove and rotatably connected to the two connecting pieces 25 by a pin. The third direction Y is perpendicular to the first direction X and the second direction Z.

[0037] In some embodiments, the first connecting part 23 and the second connecting part 24 are an integral structure.

[0038] Please see Figures 2 to 4 As shown, the telescopic assembly 3 includes a telescopic sleeve 5 and a telescopic arm 6 that are slidably connected. The telescopic sleeve 5 has a telescopic cavity 51 with one open end, and the closed end of the telescopic sleeve 5 is rotatably connected to the connector 22. The open end of the telescopic sleeve 5 extends toward the end away from the connector 22. The telescopic arm 6 is disposed within the telescopic cavity 51 and can slide relative to the telescopic sleeve 5 to extend into or retract into the telescopic cavity 51. Specifically, one end of the telescopic arm 6 extends into the telescopic cavity 51, and the other end is located outside the telescopic cavity 51 and is rotatably connected to the hook assembly 4. Please refer to the reference section. Figures 5 to 7 As shown, the rotation angle of the telescopic component 3 relative to the connector 22 can be 0 to 90 degrees. When the telescopic component 3 is in the retracted state, it can be rotated 90 degrees and folded into the receiving space 20 formed by the connector 22.

[0039] The telescopic arm 6 can extend and retract relative to the telescopic sleeve 5, and folds back to achieve a retracted state, thus further compressing the overall size of the sensor structure 100. Furthermore, if the lever arm of the hook suspending the weighed object is too short, the object will hit the side wall of the mounting plate 200, causing a change in the lever arm and resulting in inaccurate weighing. This application uses a telescopic component 3 connected to the hook component 4. When the telescopic component 3 is extended, the lever arm can be further away from the mounting plate 200, making it less likely for the object to hit the side wall of the mounting plate 200 when it is suspended, thus improving weighing accuracy.

[0040] In some embodiments, the telescopic sleeve 5 includes a first end 53 and a second end 54 disposed opposite to each other. The first end 53 is embedded in the U-shaped groove of the connector 22 and rotatably connected to two connecting pieces 25 by a pin. The second end 54 is the opening end of the telescopic cavity 51, and the telescopic arm 6 extends into the telescopic cavity 51 from the second end 54 and slides within the telescopic cavity 51. In some embodiments, the first end 53 can be an arc-shaped structure to facilitate rotation within the U-shaped groove, thereby realizing the folding of the telescopic assembly 3.

[0041] Please see Figures 4 to 7As shown, the telescopic assembly 3 also includes a positioning unit 7. The end of the telescopic arm 6 that extends into the telescopic cavity 51 is provided with a positioning hole 61. The positioning unit 7 is located in the positioning hole 61, and one end of the positioning unit 7 can extend or retract from the positioning hole 61. The positioning unit 7 is used to limit the extension or retraction distance of the telescopic arm 6 relative to the telescopic sleeve 5.

[0042] The positioning unit 7 includes a positioning element 71, an elastic element 72, and a positioning ball 73. The positioning element 71 is located inside the positioning hole 61. One end of the elastic element 72 abuts against the positioning element 71. The positioning ball 73 is located at the end of the elastic element 72 away from the positioning element 71. Under the elastic force of the elastic element 72, the positioning ball 73 can extend out of or retract into the positioning hole 61. The telescopic sleeve 5 has a first positioning groove 55 at the end near the connector 22 and a second positioning groove 56 at the end away from the connector 22. During the extension and retraction of the telescopic arm 6 along the telescopic sleeve 5, the positioning ball 73 can be embedded in the first positioning groove 55 and the second positioning groove 56. Thus, with the cooperation of the positioning element 71 and the elastic element 72, the positioning ball 73 forms a spherical convex surface with elasticity, which can be engaged in the corresponding groove in the extended and retracted states to achieve positioning. When the telescopic arm 6 extends beyond the telescopic sleeve 5 and reaches the target length, the positioning ball 73 moves to the second positioning groove 56 and engages with it under the elastic force of the elastic element 72, thus fixing the extended length of the telescopic arm 6. This ensures a more stable and unchanging lever arm length during weighing. When the telescopic arm 6 is fully retracted into the telescopic cavity 51, the positioning ball 73 moves to the first positioning groove 55 and engages with it under the elastic force of the elastic element 72, ensuring a stable retracted state for the telescopic arm 6 and preventing accidental disengagement.

[0043] In some embodiments, as the telescopic arm 6 moves relative to the telescopic sleeve 5, the positioning ball 73 can roll to reduce resistance during the telescopic process and improve smoothness.

[0044] In some embodiments, the positioning member 71 may be a pin, screwed into the positioning hole 61 from the end away from the positioning ball 73 to fix the elastic member 72 in the positioning hole 61. In some embodiments, the elastic member 72 may be a spring, with one end of the spring sleeved on the positioning member 71 and the other end sleeved on the positioning ball 73. In some embodiments, the positioning ball 73 may be a metal ball.

[0045] Please see Figure 2 and Figure 4As shown, the side surface of the telescopic arm 6 is provided with a limiting groove 62 along the telescopic direction or the first direction X, and a limiting hole 52 is provided through one side wall of the telescopic sleeve 5. A limiting member 8 is provided in the limiting hole 52. The limiting member 8 is embedded in the limiting groove 62 and can slide along the limiting groove 62. This can effectively prevent the telescopic arm 6 from being completely pulled out of the telescopic sleeve 5 by excessive force. In some embodiments, the limiting groove 62 on the side wall of the telescopic arm 6 can be a waist-shaped limiting groove, and the limiting member 8 can be a limiting pin.

[0046] Please see Figure 2 and Figure 3 As shown, the hook assembly 4 includes a hook 41 and a rotating shaft 42. The hook 41 is rotatably connected to the end of the telescopic arm 6 via the rotating shaft 42. In some embodiments, the rotation angle of the hook assembly 4 relative to the telescopic assembly 3 can be 0 to 300 degrees, that is, the rotation angle of the hook 41 can be greater than 200 degrees. In the working state, the hook 41 can suspend the object to be weighed (such as a bag containing liquid). The free rotation of the hook 41 ensures that the center of gravity of the suspended object is always directly below the rotating shaft 42, so that the lever arm does not change in the working state, which can improve the accuracy of weighing. Moreover, after the telescopic assembly 3 is folded and stored in the receiving space 20, the hook 41 can rotate a certain angle and is also stored in the receiving cavity 10.

[0047] Combination Figures 5 to 7 As shown, different states of the aforementioned sensor structure 100 are explained.

[0048] like Figure 5 As shown, at this time, the telescopic component 3 is in the retracted state, and the telescopic component 3 and the hook component 4 are located within the receiving cavity 10, in a retracted state. Figure 6 and Figure 7 As shown, when weighing is required, the telescopic component 3 can be rotated about 90 degrees to be unscrewed from the receiving cavity 10, and the hook 41 can be rotated to a free downward state; then, the telescopic arm 6 can be pulled out from the telescopic sleeve 5, so that the positioning ball 73 of the positioning unit 7 can be inserted into the second positioning groove 56 to fix the lever arm length, and then the object to be weighed can be suspended on the hook 41 for weighing.

[0049] Please see Figure 8As shown, this application embodiment also provides an electronic device 1000, which includes a housing 300 and a sensor structure 100 as described above. The housing 300 includes a mounting plate 200 and a cavity 201 enclosed by the mounting plate 200. The mounting base 1 of the sensor structure 100 is mounted on the mounting plate 200 and extends through the mounting plate 200 into the cavity 201. The telescopic component 3 and the hook component 4 can be rotated out of the mounting base 1 and located outside the mounting plate 200. This electronic device 1000 can be, for example, a biochemical analysis or medical instrument or a module of such an instrument. For example, the electronic device 1000 can be, but is not limited to, a fully automated cell sorting device. During the cell sorting process, the aforementioned sensor structure 100 can be used to weigh the target cells.

[0050] The sensor structure 100 provided in this application embodiment has a telescopic component 3 that can be folded and stored within the receiving cavity 10, which helps to reduce the volume of the sensor structure 100 and allows it to be stored away when not in use, making it more aesthetically pleasing and concealed. Furthermore, the telescopic arm 6 of the telescopic component 3 can be fixed by the positioning unit 7, ensuring consistent extension of the arm and improving the accuracy of weighing measurements. In addition, the sensor structure 100 is small in size, allowing the mounting base 1 to be embedded entirely into the side wall of the equipment, facilitating side mounting. This makes it suitable for equipment with limited space and allows it to be installed below or above pipelines, shortening pipeline length and making it suitable for situations where residual liquid in the pipeline needs to be reduced.

[0051] Finally, it should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. Furthermore, the above embodiments are merely illustrative of the technical solutions of this application and not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A sensor structure, characterized in that, include: The mounting base has a receiving cavity having an opening; The sensor assembly includes a load cell fixed on the mounting base and a connector disposed on the load cell near the opening, the sensor assembly being suspended within the receiving cavity; A telescopic assembly, one end of which is rotatably connected to the connector head, and the telescopic assembly can extend away from the connector head or retract towards the connector head. as well as The hook assembly is rotatably connected to the end of the telescopic assembly away from the connector.

2. The sensor structure as described in claim 1, characterized in that, The telescopic assembly includes a telescopic sleeve and a telescopic arm. One end of the telescopic sleeve is rotatably connected to the connector head. The telescopic sleeve has a telescopic cavity. The opening of the telescopic cavity is located at the end of the telescopic sleeve away from the connector head. The telescopic arm is disposed in the telescopic cavity and can slide along the telescopic cavity to extend or retract into the telescopic cavity.

3. The sensor structure as described in claim 2, characterized in that, The telescopic arm has a mounting hole at one end near the connector. The telescopic assembly also includes a positioning unit disposed in the mounting hole. The positioning unit is used to limit the extension or retraction distance of the telescopic arm relative to the telescopic sleeve.

4. The sensor structure as described in claim 3, characterized in that, The positioning unit includes a positioning element, an elastic element, and a positioning ball. The positioning element is located inside the mounting hole. One end of the elastic element abuts against the positioning element. The positioning ball is located at the end of the elastic element away from the positioning element. The positioning ball can extend or retract into the mounting hole under the elastic force of the elastic element. The telescopic sleeve has a first positioning groove at the end near the connector and a second positioning groove at the end away from the connector. The positioning ball can be embedded in the first positioning groove and the second positioning groove.

5. The sensor structure as described in claim 1, characterized in that, The connector includes a first connecting part and a second connecting part that are connected to each other. The first connecting part is rotatably connected to the telescopic assembly, and the second connecting part is connected to the weighing sensor. The extension direction of the receiving cavity is defined as the first direction. The first connecting part extends along the first direction, and the second connecting part extends along a second direction perpendicular to the first direction. The first connecting part and the second connecting part form an L-shaped receiving space. The telescopic component drives the hook component to rotate and be stored in the receiving space.

6. The sensor structure as described in claim 1, characterized in that, The side surface of the telescopic arm is provided with a limiting groove along the telescopic direction, and a limiting member is provided through the telescopic sleeve. The limiting member is embedded in the limiting groove and can slide along the limiting groove.

7. The sensor structure as described in claim 1, characterized in that, The telescopic component rotates at an angle of 0 to 90 degrees relative to the connector.

8. The sensor structure as described in claim 1, characterized in that, The rotation angle of the hook assembly relative to the telescopic assembly is 0 to 300 degrees.

9. The sensor structure as described in claim 1, characterized in that, The mounting base includes a mounting frame, a base plate, and a cover plate. The base plate and the cover plate are respectively located at opposite ends of the mounting frame and together with the mounting frame form the receiving cavity. The weighing sensor is fixed on the base plate and extends toward the cover plate. The connector is located inside the receiving cavity and close to the cover plate.

10. An electronic device, characterized in that, The device includes a housing and a sensor structure as described in any one of claims 1 to 9, the housing including a sidewall and a cavity enclosed by the sidewall, the mounting base being mounted on the sidewall and extending through the sidewall into the cavity, and the telescopic assembly and the hook assembly being located outside the sidewall.

Images