Differential detector
By setting limit slots on the surface of the differential detector housing and hiding the touch members, the error contact and damage caused by exposure of the existing differential detector adjustment keys is solved, and a more stable and durable probe spacing adjustment is achieved.
Patent Information
- Application Number
- CN202421262859.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The adjustment keys on existing differential detectors are exposed, which are easily touched by mistake, causing changes in the probe spacing, affecting signal detection, and are easily damaged or deformed when moving.
A differential detector is designed, with a limit groove on the surface of the housing, and the touch member protruding from the bottom of the groove from the hollow part but not exceeding the surface of the housing, so that the touch member is hidden in the limit groove. The user adjusts the touch member through the limit groove to control the distance between the probes.
Reduces the chance of accidentally touching the touch part, avoids changes in the probe spacing, protects the touch part, reduces the risk of damage, and makes the appearance of the equipment flatter, appropriately reduces the size of the touch part, and saves internal space.
Smart Images
Figure CN222800812U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of differential signal detection, and in particular to a differential detector. Background Art
[0002] The differential detector detects the differential signal transmitted on two wires through two probes. In order to adapt to the distance between the two wires, the distance between the two probes can be adjusted through the adjustment key. At present, the adjustment key on the differential detector is usually exposed. When using the differential detector, the user is prone to accidentally touch the adjustment key and cause the distance between the two probes to change, thereby affecting the detection of the differential signal. In addition, when moving the differential detector, it is easy to cause damage or deformation of the adjustment key. Utility Model Content
[0003] The present application provides a differential detector, aiming to solve the technical problem that the adjustment keys on the existing differential detector are exposed.
[0004] In one embodiment of the present application, a differential detector is provided, comprising:
[0005] a housing having an inner cavity;
[0006] Two probe assemblies are movably disposed in the inner cavity, and the detection ends of the two probe assemblies are exposed outside the housing; and,
[0007] An adjustment component installed in the inner cavity, the adjustment component is connected to the two probe components respectively, and is used to adjust the distance between the detection ends of the two probe components;
[0008] A limiting groove is provided on the surface of the shell, the limiting groove has a groove bottom and a hollow portion is provided on the groove bottom, the adjustment component includes a trigger for a user to trigger or toggle to control the change in the spacing, at least a portion of the trigger protrudes from the groove bottom from the hollow portion and the top of the trigger does not exceed the surface of the shell.
[0009] In one embodiment, the top of the limiting groove has a notch, and the notch is configured to enable at least a portion of a finger to extend into the limiting groove and adjust the triggering member.
[0010] In one embodiment, the area of the notch is larger than the projection area of the notch bottom on the surface of the shell.
[0011] In one embodiment, the adjustment assembly further comprises a rotating shaft installed in the inner cavity, and the actuating member is a roller;
[0012] The rotation direction of the roller is perpendicular to the direction of relative movement of the detection ends of the two probe assemblies. The rotating shaft is connected to the roller and adjusts the distance between the detection ends of the two probe assemblies as the roller rotates.
[0013] In one embodiment, the notch has a long side and a short side, the long side is arranged along the rolling direction of the roller, the short side is arranged in a direction perpendicular to the rolling direction, and the long side and the short side have an arc transition.
[0014] In one embodiment, the length of the long side is 12.8 mm-19.8 mm, the length of the short side is 8.8 mm-14.8 mm, and the depth of the limiting groove is 1.2 mm-4.7 mm.
[0015] In one embodiment, the short side includes a first short side close to the detection end and a second short side away from the detection end, and the length of the first short side is shorter than the length of the second short side.
[0016] In one embodiment, the limiting groove further has an inwardly concave arcuate groove wall, and the arcuate groove wall transitions to the groove bottom and the surface of the shell in an arc shape respectively.
[0017] In one embodiment, the housing comprises an upper housing and a lower housing that are interlocked;
[0018] The upper shell and the lower shell are both provided with the limiting grooves, the two limiting grooves are arranged relatively to each other, and the actuating member protrudes out of the bottoms of the two limiting grooves.
[0019] In one embodiment, the surface of the trigger is provided with anti-slip textures.
[0020] According to the differential detector in the above embodiment, a limiting groove is provided on the surface of the shell, and a part of the touch piece protrudes from the bottom of the groove from the hollow part and does not exceed the surface of the shell, so that the touch piece can be hidden in the limiting groove. When the user uses the differential detector, the probability of accidentally touching the touch piece can be reduced, thereby avoiding changes in the spacing between the detection ends of the two probe assemblies. At the same time, the touch piece is hidden in the limiting groove, so that the surface of the shell can protect the touch piece, thereby reducing the risk of the touch piece being damaged or deformed by bumps in the differential detector in a mobile scene, and also making the appearance of the differential detector smoother.
[0021] In addition, by providing the limiting groove on the surface of the housing, the exposed area of the touch piece is increased, so that the size of the touch piece can be appropriately reduced, so that the user can still adjust the touch piece, thereby saving the internal space of the housing. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of a differential detection device in an embodiment of the present application;
[0023] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of a differential detector in a differential detection device;
[0024] Figure 3 for Figure 2 Schematic diagram of the main structure of the medium differential detector;
[0025] Figure 4 for Figure 3 AA cross-sectional structure diagram of the medium differential detector;
[0026] Figure 5 for Figure 3 Schematic diagram of the main structure inside the differential detector;
[0027] Figure 6 for Figure 3 BB cross-sectional structure diagram of the medium differential detector;
[0028] Figure 7 for Figure 6 Schematic diagram of the three-dimensional structure of the middle adjustment component.
[0029] in:
[0030] 100-differential detector; 101-probe cover; 10-shell; 10a-upper shell; 10b-lower shell; 11-inner cavity; 12-limiting groove; 120-hollow part; 121-groove bottom; 122-groove wall; 123-slot; 20-probe assembly; 21-detection end; 30-adjustment assembly; 31-touch piece; 310-anti-slip pattern; 32-rotating shaft; 200-oscilloscope. Specific embodiments
[0031] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can effortlessly recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, and this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.
[0032] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be replaced or adjusted in order in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment, and do not mean that the composition and / or order are necessary.
[0033] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).
[0034] The present application provides a differential detection device, such as Figure 1 As shown, the differential detection device may include a differential detector 100 and an oscilloscope 200, and the differential detector 100 is electrically connected to the oscilloscope 200. For example, the differential detector 100 may be connected to the interface of the oscilloscope 200 via a communication cable, so that the differential signal detected by the differential detector 100 can be analyzed, displayed, and recorded on the oscilloscope 200. The differential detector 100 may be equipped with a probe cover 101, and when the differential detector 100 is not in use, the probe cover 101 may be covered on the differential detector 100 to protect the needle on the differential detector 100.
[0035] When using the differential detector 100, the user can adjust the distance between the two probes by adjusting the key. However, the adjustment key is usually exposed outside the surface of the differential detector 100. When using the differential detector 100, the user's finger may accidentally touch the adjustment key, causing the distance between the two probes to change, resulting in inaccurate detection results. In addition, in the transportation, use, and movement of the differential detector 100, the exposed adjustment key is also easily damaged or deformed by bumps.
[0036] To this end, the present application also provides a differential detector 100, such as Figures 2 to 4As shown, the differential detector 100 may include a housing 10, a probe assembly 20 and an adjustment assembly 30. The housing 10 has an inner cavity 11. Two probe assemblies 20 are provided. The two probe assemblies 20 are movably arranged in the inner cavity 11. The detection ends 21 of the two probe assemblies 20 are exposed outside the housing 10. The adjustment assembly 30 may be installed in the inner cavity 11. The adjustment assembly 30 is respectively connected to the two probe assemblies 20 to adjust the distance between the detection ends 21 of the two probe assemblies 20. The surface of the housing 10 is provided with a limiting groove 12, the limiting groove 12 has a groove bottom 121 and a hollow portion 120 is provided on the groove bottom 121. The adjustment assembly 30 may include a touch piece 31 for a user to trigger or toggle to control the change of the distance. At least a part of the touch piece 31 may protrude from the groove bottom 121 from the hollow portion 120 and the top of the touch piece 31 does not exceed the surface of the housing 10.
[0037] In this way, by setting the limiting groove 12 on the surface of the housing 10, and making a part of the touch piece 31 protrude from the bottom 121 of the groove from the hollow part 120 and not exceeding the surface of the housing 10, the touch piece 31 can be hidden in the limiting groove 12. When the user uses the differential detector 100, the probability of accidentally touching the touch piece 31 can be reduced, thereby avoiding the change in the spacing between the detection ends 21 of the two probe assemblies 20. At the same time, the touch piece 31 is hidden in the limiting groove 12, so that the surface of the housing 10 can protect the touch piece 31, thereby reducing the risk of the touch piece 31 being damaged or deformed by collision when the differential detector 100 is in a mobile scene, and also making the appearance of the differential detector 100 smoother.
[0038] In addition, by providing the limiting groove 12 on the surface of the housing 10, the exposed area of the trigger 31 is increased. In this way, the size of the trigger 31 can be appropriately reduced, so that the user can still adjust the trigger 31, thereby saving the internal space of the housing 10.
[0039] The trigger 31 may be a structure such as a roller or a slider. For example, the user may adjust the distance between the detection ends 21 of the two probe assemblies 20 by rotating the roller, a portion of the roller may protrude from the bottom 121 of the groove from the hollow portion 120 and the top of the roller may not exceed the surface of the housing 10. The user may also adjust the distance between the detection ends 21 of the two probe assemblies 20 by toggling the slider, a portion or all of the slider may protrude from the bottom 121 of the groove from the hollow portion 120 and the top of the slider may not exceed the surface of the housing 10. The present application does not impose any special restrictions on the specific structure of the trigger 31.
[0040] It should be noted that if Figure 2As shown, in the drawings, hollow parts such as grooves, cavities, and hollow parts are marked with arrows, and other parts are marked with arrows. For example, the marking lines shown in the limit groove 12 will not be repeated in the following embodiments.
[0041] In some embodiments, Figure 3 As shown, the top of the limiting groove 12 has a notch 123 , and the notch 123 is configured to allow at least a portion of a finger to extend into the limiting groove 12 and adjust the trigger member 31 .
[0042] When the user adjusts the touch member 31, the fingertip or other part of the finger can extend from the notch 123 into the limit slot 12, and the notch 123 can limit the finger, thereby preventing the finger from leaving the touch member 31, so as to keep the finger in contact with the touch member 31 throughout the limit slot 12, thereby ensuring the continuity of the adjustment. Of course, in other embodiments, the notch 123 of the limit slot 12 can also be set to a narrower size, so that the touch member 31 can be hidden in the limit slot 12, as long as the finger can touch and adjust the touch member 31. The present application does not impose any special restrictions on the size of the notch 123.
[0043] Among them, Figure 3 As shown, the area of the notch 123 may be larger than the projection area of the groove bottom 121 on the surface of the housing 10 .
[0044] When the user's finger is inserted into the limiting groove 12, the area of the notch 123 is larger than the projection area of the groove bottom 121 on the surface of the housing 10, so that the shape of the limiting groove 12 can match the shape of the fingertip, thereby improving the user's comfort. Of course, the area of the notch 123 can also be equal to the projection area of the groove bottom 121 on the surface of the housing 10.
[0045] In one embodiment, if Figure 4 and Figure 5 As shown, the adjustment assembly 30 may also include a rotating shaft 32 installed in the inner cavity 11, and the trigger member 31 may be a roller, the rotation direction of the roller is perpendicular to the direction of relative movement of the detection ends 21 of the two probe assemblies 20, and the rotating shaft 32 is connected to the roller and adjusts the distance between the detection ends 21 of the two probe assemblies 20 as the roller rotates.
[0046] For example, Figure 5 and Figure 7 As shown, the rotating shaft 32 can pass through the rotation center of the roller, and the two ends of the rotating shaft 32 can be respectively threadedly connected to the two probe assemblies 20. When the roller rotates, the rotating shaft 32 can rotate with the roller and drive the two probe assemblies 20 to move through the threads, so that the detection ends 21 of the two probe assemblies 20 move relative to each other.
[0047] In other embodiments, the trigger 31 can also be set as a push slider structure, the push slider can be set as a wedge-shaped structure and set between the two probe assemblies 20, and the two probe assemblies 20 can move away from or approach each other through the linear sliding of the push slider. In this case, the limit groove 12 can be set as a long strip groove structure along the sliding direction of the push slider. The present application does not impose any special restrictions on the specific structure of the trigger 31 and the limit groove 12.
[0048] Specifically, if Figure 3 As shown, the notch 123 may have a long side and a short side, the long side may be arranged along the rolling direction of the roller, the short side may be arranged along a direction perpendicular to the rolling direction, and the long side and the short side may transition in an arc shape.
[0049] The notch 123 is configured to have a long side and a short side, so that the shape of the notch 123 is more compatible with the shape of the user's finger. At the same time, the arc transition between the long side and the short side also prevents the user's finger from feeling a cut when adjusting the touch piece 31. Of course, in other embodiments, the notch 123 can also be configured to be circular or elliptical, and the present application does not impose any special restrictions on the shape of the notch 123.
[0050] In some embodiments, Figure 3 and Figure 4 As shown, the length L of the long side can be set to 12.8 mm-19.8 mm, the length of the short side can be set to 8.8 mm-14.8 mm, and the depth H of the limiting groove 12 can be set to 1.2 mm-4.7 mm.
[0051] Users usually use their thumb, index finger or middle finger to adjust the scroll wheel. According to the statistical results of the thumb, index finger and middle finger of users, when the length L of the long side of the notch 123 is 12.8mm-19.8mm, the length of the short side is 8.8mm-14.8mm, and the depth H of the limit slot 12 is 1.2mm-4.7mm, the thumb, index finger and middle finger of most users can be inserted into the limit slot 12 and adjust the scroll wheel. If the length L of the long side of the notch 123 is less than 12.8mm, the length of the short side is less than 8.8mm, and the depth H of the limit slot 12 is less than 1.2mm, some users with larger fingers may feel that the notch 123 is too tight, thereby affecting the user experience. If the length L of the long side of the notch 123 is greater than 19.8mm, the length of the short side is greater than 14.8mm, and the depth H of the limit slot 12 is greater than 4.7mm, some users with smaller fingers may have a deflection when touching the scroll wheel, resulting in the problem of the scroll wheel being stuck during rotation. Among them, when the length L of the long side of the slot 123 is 13.8mm-16.8mm, the length of the short side is 9.3mm-11.8mm, and the depth H of the limit slot 12 is 1.4mm-3.7mm, the fingertips of most users can just touch the rolling surface of the roller, and the fingers will not feel too tight or too loose in the limit slot 12.
[0052] In more embodiments, Figure 3 As shown, the short side may include a first short side W1 close to the detection end 21 and a second short side W2 away from the detection end 21 . The length of the first short side W1 may be smaller than the length of the second short side W2 .
[0053] When the length of the first short side W1 of the slot 123 is less than the length of the second short side W2, the slot 123 gradually narrows from the non-detection end to the detection end 21, so that the shape of the slot 123 is more compatible with the contour of the user's finger. In addition, when the user adjusts the roller, the finger is gradually squeezed as the slot 123 gradually narrows, which can also improve the stability of the finger during adjustment, so that the distance between the detection ends 21 of the two probe assemblies 20 can be stably adjusted.
[0054] In addition, if Figure 4 and Figure 6 As shown, the limiting groove 12 further has an inwardly concave arcuate groove wall 122 , and the arcuate groove wall 122 can respectively transition to the groove bottom 121 and the surface of the housing 10 in an arc shape.
[0055] When the groove wall 122 is set to be arc-shaped, the shape of the groove wall 122 of the limiting groove 12 is more compatible with the shape of the fingertips, which can further improve the comfort of the user's fingers when adjusting. In addition, the arc-shaped groove wall 122 transitions with the groove bottom 121 and the surface of the housing 10 in an arc shape, which can also avoid the problem of the user's fingers feeling cut when adjusting.
[0056] The above embodiment is a detailed description of the specific structure of the limit groove 12 provided on the housing 10. In more embodiments, such as Figure 4 and Figure 6 As shown, the shell 10 may include an upper shell 10a and a lower shell 10b that are interlocked. Both the upper shell 10a and the lower shell 10b may be provided with a limiting groove 12. The positions of the two limiting grooves 12 are relatively arranged, and the trigger 31 protrudes from the bottom 121 of the two limiting grooves 12.
[0057] In this way, the user can adjust the touch piece 31 on the surface of the upper shell 10a, the surface of the lower shell 10b, or the surface of the upper shell 10a and the lower shell 10b at the same time. In this way, the user can choose a more convenient operation gesture according to different postures when detecting differential signals. Of course, the differential detector 100 can also be provided with a limit groove 12 only on one side surface of the shell 10, and the present application does not impose any special restrictions on the number of limit grooves 12 provided on the shell 10.
[0058] In addition, if Figure 7 As shown, the surface of the trigger 31 may be provided with anti-slip patterns 310 .
[0059] The provision of the anti-skid pattern 310 can increase the friction between the user's finger and the touch piece 31 to prevent the user from slipping when adjusting the touch piece 31, thereby ensuring the consistency of the adjustment of the two probe assemblies 20. The anti-skid pattern 310 can be provided as a tooth groove shape, a corrugated shape or other shapes, and the present application does not impose any special restrictions on the specific shape of the anti-skid pattern 310.
[0060] On this basis, the surface of the actuator 31 may also be covered with a protective film.
[0061] The protective film can be made of a polyethylene (PE) film, a polyvinyl chloride (PVC) film, a polyurethane (PU) film or other wear-resistant film. The present application does not impose any special restrictions on the specific material of the protective film. The protective film can increase the friction between the user's finger and the touch piece 31 on the one hand, and can also reduce the wear on the touch piece 31 after long-term use on the other hand.
[0062] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of the present invention.
Claims
1. A differential detector, characterized in that: include: a housing having an inner cavity; Two probe assemblies are movably disposed in the inner cavity, and the detection ends of the two probe assemblies are exposed outside the shell; as well as, An adjustment component, installed in the inner cavity, the adjustment component is connected to the two probe components respectively, and is used to adjust the distance between the detection ends of the two probe components; A limiting groove is provided on the surface of the shell, the limiting groove has a groove bottom and a hollow portion is provided on the groove bottom, the adjustment component includes a trigger for a user to trigger or toggle to control the change in the spacing, at least a portion of the trigger protrudes from the groove bottom from the hollow portion and the top of the trigger does not exceed the surface of the shell.
2. The differential detector according to claim 1, characterized in that The top of the limiting groove has a notch, and the notch is configured to enable at least a portion of a finger to extend into the limiting groove and adjust the touch piece.
3. The differential detector according to claim 2, characterized in that The area of the notch is larger than the projection area of the groove bottom on the surface of the housing.
4. The differential detector according to claim 2, characterized in that The adjustment assembly further includes a rotating shaft installed in the inner cavity, and the actuating member is a roller; The rotation direction of the roller is perpendicular to the direction of relative movement of the detection ends of the two probe assemblies. The rotating shaft is connected to the roller and adjusts the distance between the detection ends of the two probe assemblies as the roller rotates.
5. The differential detector according to claim 4, characterized in that The notch has a long side and a short side, the long side is arranged along the rolling direction of the roller, the short side is arranged along a direction perpendicular to the rolling direction, and the long side and the short side have an arc transition.
6. The differential detector according to claim 5, characterized in that The length of the long side is 12.8mm-19.8mm, the length of the short side is 8.8mm-14.8mm, and the depth of the limiting groove is 1.2mm-4.7mm.
7. The differential detector according to claim 5, characterized in that The short side includes a first short side close to the detection end and a second short side away from the detection end, and the length of the first short side is shorter than the length of the second short side.
8. The differential detector according to claim 1, characterized in that The limiting groove also has an inwardly concave arcuate groove wall, and the arcuate groove wall is in arcuate transition with the groove bottom and the surface of the shell respectively.
9. The differential detector according to any one of claims 1 to 8, characterized in that: The housing comprises an upper housing and a lower housing which are buckled with each other; The upper shell and the lower shell are both provided with the limiting grooves, the two limiting grooves are arranged relative to each other, and the trigger protrudes out of the bottoms of the two limiting grooves.
10. The differential detector according to any one of claims 1 to 8, characterized in that: The surface of the trigger is provided with anti-slip textures.