Insertion piece type probe seat system
Through the design of the plug-in probe holder system, the problem of difficulty in replacing traditional probe holders is solved, convenient replacement of probe holders and shortening of equipment maintenance cycles, improving the reliability and simplicity of equipment.
Patent Information
- Application Number
- CN202421985341.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-16
AI Technical Summary
In traditional probe holder systems, it is difficult to replace probes, complex fixing methods, large size, cumbersome wiring, and long maintenance.
The plug-in probe base system is adopted, and the base and the probe base are detachably connected, and the circuit is wiring using printed circuits. A positioning mechanism is provided between the probe base and the base, and the fastener and spring drive structure are quickly replaced.
It realizes convenient replacement of probe seats, shortens equipment maintenance cycles, simplifies circuit wiring, and improves replacement efficiency and equipment reliability.
Smart Images
Figure CN223051394U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of relay detection equipment, in particular to a blade-type probe seat system. Background Art
[0002] A relay is a kind of power control device widely used in the industrial field, and its electrical performance needs to be tested many times during the production process.
[0003] When testing relay products, multiple probes are needed to contact the products, and then the test instrument accesses the electrical signal to detect the products. The probes have a certain service life, and in the actual production process, it is often necessary to replace the old probes to ensure the normal operation of the detection system. The traditional probe group uses a probe seat fixed by mechanical processing, that is, the probe seat is a fixed module structure after assembly, and the connection between the probe and the probe seat body is non-detachable. This method has the defects of large volume, cumbersome wiring, complex fixing method, and long replacement time. Content of the Utility Model
[0004] The utility model provides a blade-type probe seat system, which is beneficial to solving the problem of difficult probe replacement in some existing relay detection systems.
[0005] The utility model is implemented as follows:
[0006] A blade-type probe seat system includes a base. A circuit slot capable of being electrically connected to an external power supply is provided on the base. An opening slot is provided at the insertion position of the circuit slot on the base. The opening slot longitudinally penetrates the base and forms a transverse opening structure on the side of the base away from the circuit slot. The direction from the outer opening to the inner circuit slot of the opening slot is defined as the front-back direction. Rail slots are provided on the inner side walls in the left-right direction of the opening slot. A probe seat is detachably inserted into the rail slots. After the transverse inner end of the probe seat is inserted into the circuit slot, an electrical connection structure is formed. A probe extending to the lower part of the opening slot is provided at the bottom of the probe seat. The probe is used for electrically connecting the product to be measured. A printed circuit is provided on the probe seat. The probe, the probe seat, and the circuit slot can form a detection circuit system with an external power supply. A positioning mechanism is provided between the probe seat and the base.
[0007] On the basis of the above technical solution, two rail slots in a symmetric relationship are provided on the left and right inner side walls of the opening slot. The opening slot and the rail slots form a "cross"-shaped slot hole structure in the longitudinal profile. The left and right ends of the probe seat can be inserted into the rail slots along the front-back direction.
[0008] On the basis of the above technical solution, the inner end of the probe base in the front-back direction is a plug-in end, and the plug-in end is provided with copper sheets adapted to the circuit slots. The two side edges of the probe base in the left-right direction are provided with positioning grooves, and the positioning grooves longitudinally penetrate the probe base. The base is provided with buckle members adapted to the probe base on both sides of the opening groove. The buckle members can be snapped into the positioning grooves after the probe base is plugged in place, forming a front-back displacement constraint structure for the probe base, so that the buckle members and the positioning grooves constitute the positioning mechanism.
[0009] On the basis of the above technical solution, the base is provided with movable grooves on both sides of the opening groove. The movable grooves are longitudinal slot hole structures. The outer ends of the track grooves in the left-right direction are communicated with the movable grooves. After the left and right edges of the probe base are inserted into the track grooves, they can partially extend into the movable grooves. The buckle members are slidably arranged in the movable grooves longitudinally. The side of the buckle members close to the track grooves is provided with side grooves that horizontally penetrate the buckle members in the front-back direction. When the probe base is plugged in place, when the side grooves are misaligned with the track grooves, the inner ends of the buckle members are snapped into the positioning grooves to form a front-back displacement constraint structure for the probe base; when the side grooves are aligned with the track grooves, the constraint is released, and the probe base can perform front-back displacement.
[0010] On the basis of the above technical solution, the longitudinal cross-sectional contour of the buckle member is an "n"-shaped structure, and an inner groove is provided at the center position of its bottom. A spring is provided in the inner groove, and the telescopic direction of the spring is longitudinally arranged. The longitudinal two ends of the spring are respectively abutted against the buckle member and the base, and the spring constitutes a driving structure for the longitudinal displacement of the buckle member.
[0011] On the basis of the above technical solution, the outer end of the probe base in the front-back direction is provided with a pulling groove.
[0012] On the basis of the above technical solution, the probe is a structure of a clamping metal elastic sheet.
[0013] On the basis of the above technical solution, the top of the probe is an extension part with a vertical sheet-like structure. A bending part is provided at the bottom of the extension part, and a clamping gap is formed at the inner ends of adjacent bending parts.
[0014] On the basis of the above technical solution, an inverted "T" shaped structure is formed at the connection between the extension part and the bending part.
[0015] Compared with the prior art, the utility model has at least the following advantages:
[0016] The utility model is provided with a detachable connection mode through a base and a probe base, and the connection stability with an external power supply is improved by using the base and the circuit slot. As an independent component, the probe base can be conveniently replaced after the probe is worn or aged; the utility model uses a printed circuit for circuit wiring, which is more concise and beautiful compared with the traditional wire welding method; the utility model uses a circuit slot mode, and the old probe base can be quickly replaced, which can greatly shorten the equipment maintenance cycle. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.
[0018] Figure 1 FIG. 1 is a schematic perspective view of an insert-type probe base system in an embodiment;
[0019] Figure 2 FIG. 2 Figure 1 is a schematic structural view of the probe base in FIG. 1;
[0020] Figure 3 FIG. 3 is a schematic partial structural view of the probe in an embodiment;
[0021] Figure 4 FIG. 4 is a schematic simplified installation structure diagram of the unilateral buckle.
[0022] Reference numerals in the figures: 1, base; 11, opening groove; 12, track groove; 13, movable groove; 2, circuit slot; 3, probe base; 31, insertion end; 32, positioning groove; 33, pulling groove; 4, probe; 41, extension part; 42, bending part; 43, clamping gap; 5, buckle; 51, inner groove; 52, side groove; 6, spring; 7, cover; a, product to be measured. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model.
[0024] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.
[0025] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to an element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation manner.
[0026] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] Combined Figures 1-4 , this embodiment discloses a plug-in probe base system, including a base 1, a circuit slot 2, a probe base 3, a probe 4 and a positioning mechanism, which is used to detect the electrical signals accessed by the relay.
[0028] The base 1 in this embodiment is a plastic injection molded part. In other embodiments, a machined structural part can also be used. The main function of the base 1 is to provide a bearing structure. A circuit slot 2 capable of being electrically connected to an external power supply is provided on the base 1. The circuit slot 2 is configured with a corresponding printed circuit board to provide corresponding functional support. This is prior art, and its specific structure and working principle will not be elaborated herein. Those skilled in the art can select and implement from the prior art according to the actual operation situation.
[0029] An opening slot 11 is provided at the insertion position of the base 1 where the circuit slot 2 is located. The opening slot 11 longitudinally penetrates the base 1 and forms a transverse opening structure on the side of the base 1 away from the circuit slot 2. As Figure 1 shown, for the convenience of description, the orientation from the outer opening of the opening slot 11 to the inner circuit slot 2 is defined as the front-back direction.
[0030] Track grooves 12 are provided on the inner side walls in the left-right direction of the opening slot 11. In this embodiment, two track grooves 12 in a symmetric relationship are provided on the left and right inner side walls of the opening slot 11. The opening slot 11 and the track grooves 12 form a "cross"-shaped slot hole structure in the longitudinal profile. This "cross"-shaped slot hole structure is wider longitudinally and narrower transversely. The longitudinal width adapts to the layout requirements of the probe 4, and the transverse width adapts to the thickness of the probe base 3.
[0031] A probe base 3 is detachably inserted into the track groove 12. After the inner end of the probe base 3 in the front-back direction is inserted into and connected to the circuit slot 2, an electrical connection structure is formed. The inner end of the probe base 3 in the front-back direction is a plug-in end 31, and the plug-in end 31 is provided with copper sheets adapted to the circuit slot 2.
[0032] The probe base 3 is provided with a printed circuit. The bottom of the probe base 3 is provided with probes 4 extending below the opening groove 11. The probes 4 are welded to the printed circuit board made of a glass fiber substrate. The probes 4 are used to electrically connect the product a (relay) to be measured. The probes 4, the probe base 3, and the circuit slot 2 can form a detection circuit system with an external power supply.
[0033] The probe 4 is a clamped metal elastic sheet structure. The top of the probe 4 is an extension part 41 with a vertical sheet-like structure. A bending part 42 is provided at the bottom of the extension part 41. A clamping gap 43 is formed at the inner ends of adjacent bending parts 42 for the connection terminal of the product a to be measured to be inserted and connected. An inverted "T" shaped structure is formed at the connection between the extension part 41 and the bending part 42. This structure can effectively ensure the elasticity above the probe 4 and can also play a role in strengthening the structural strength of the bottom clamping area. It should be noted that the specific structure of the probe 4 is selected according to the structure of the product to be detected.
[0034] A positioning mechanism is provided between the probe base 3 and the base 1 to ensure the assembly stability of the probe base 3 and prevent it from falling off during use.
[0035] The left and right ends of the probe base 3 can be inserted into the track groove 12 in the front-back direction. Arc-shaped positioning grooves 32 are provided on both sides of the probe base 3 in the left-right direction. The positioning grooves 32 are close to the outer ends of the probe base 3 in the front-back direction and longitudinally penetrate the probe base 3. On both sides of the opening groove 11 of the base 1, there are buckle parts 5 adapted to the probe base 3. The side profile of the buckle part 5 is adapted to the inner profile of the positioning groove 32. After the probe base 3 is inserted in place, the buckle part 5 can be clamped in the positioning groove 32 to form a front-back displacement constraint structure for the probe base 3, so that the buckle part 5 and the positioning groove 32 constitute the positioning mechanism.
[0036] Further, referring to Figure 4 , longitudinal grooves 13 are provided on both sides of the opening groove 11 of the base 1. The longitudinal grooves 13 are longitudinal slot hole structures. In this embodiment, the longitudinal grooves 13 longitudinally penetrate the base 1. The top of the buckle part 5 can be exposed above the top of the longitudinal groove 13. The longitudinal groove 13 forms an opening structure at the bottom of the base 1. This opening structure is closed by a cover 7. The cover 7 is connected and fixed to the base 1 by bolts, so that the longitudinal groove 13 forms a relatively closed slot hole structure.
[0037] The outer ends of the track groove 12 in the left - right direction are communicated with the movable groove 13. In fact, the outer ends of the track groove 12 in the left - right direction transversely cut the movable groove 13, so that the inner ends of the movable groove 13 in the left - right direction form a cut parallel to the front - back direction. After the left and right edges of the probe holder 3 are inserted into the track groove 12, they can partially extend into the movable groove 13. In this state, there is an interaction relationship between the left and right outer edges of the probe holder 3 and the movable groove 13.
[0038] The buckle member 5 is longitudinally slidably arranged in the movable groove 13. The longitudinal profile of the buckle member 5 is an "n" - shaped structure. An inner groove 51 is provided at the center position of its bottom. A spring 6 is arranged in the inner groove 51. The telescopic direction of the spring 6 is longitudinally arranged. The two longitudinal ends of the spring 6 are respectively abutted against the buckle member 5 and the base 1. Specifically, the top of the spring 6 abuts against the top wall of the movable groove 13, and the bottom abuts against the cover 7, that is, indirectly forms an abutting relationship with the base 1 through the cover 7, so that the buckle member 5 can longitudinally displace relative to the base 1. The spring 6 constitutes a driving structure for the longitudinal displacement of the buckle member 5.
[0039] Further, a side groove 52 that transversely penetrates the buckle member 5 in the front - back direction is provided on one side of the buckle member 5 close to the track groove 12. When the probe holder 3 is inserted in place (the positioning hole coincides with the cut position of the movable groove 13), when the side groove 52 is misaligned with the track groove 12, the inner end of the buckle member 5 is clamped in the positioning groove 32 to form a front - back displacement constraint structure for the probe holder 3; when the side groove 52 is aligned with the track groove 12, the constraint is released, and the probe holder 3 can perform front - back displacement. It should be noted that in the free state of the spring 6, the side groove 52 will be forced to be misaligned with the track groove 12. When the constraint needs to be released, only the buckle member 5 needs to be pressed down from the top, and the operation is convenient.
[0040] In order to facilitate pulling out the probe holder 3 from the track groove 12, a pull groove 33 is provided at the outer end of the probe holder 3 in the front - back direction. The pull groove 33 is a strip - shaped through - hole structure that longitudinally penetrates the outer area of the probe holder 3 in the front - back direction.
[0041] In this embodiment, a printed circuit is used as the base material of the probe holder 3, which is combined with the circuit slot 2 and the quick - change system of the probe holder 3 to facilitate the replacement operation of the probe 4 assembly. The probe 4 is welded on a printed circuit board made of a fiberglass substrate. The probes 4 are distributed according to the pin positions of the product to be tested. A wire is led out from each probe 4 to one side of the printed circuit board. There is a group of exposed copper foils on one side of the printed circuit board for contacting the circuit slot 2 to transmit electrical signals. A group of buckle members 5 arranged left - right are provided on the base 1. The buckle members 5 are driven by springs 6. After the probe holder 3 is completely inserted into the track groove 12, the buckle members 5 will automatically pop up to position the probe holder 3 and prevent the circuit board from loosening during the test. When replacing the probe holder 3, press down the buckle members 5 to pull out the probe holder 3, and insert a new probe holder 3 to complete the replacement.
[0042] Compared with the prior art, using a printed circuit for circuit wiring is more concise and beautiful than the traditional wire bonding method; using the circuit slot 2 method, the old probe holder 3 can be quickly replaced, which can greatly shorten the equipment maintenance cycle; the spring 6 buckle will not automatically unlock after positioning the circuit board, and the probe holder 3 will not move by itself during operation, which is more reliable; the spring 6 buckle design enables the replacement of the probe holder 3 without the need for tools, reducing the operation difficulty and the worker training cost.
[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A plug-in probe seat system, characterized in that: The invention comprises a base (1), wherein the base (1) is provided with a circuit slot (2) capable of being electrically connected to an external power source, and the base (1) is provided with an opening slot (11) at a plugging position of the circuit slot (2), the opening slot (11) vertically penetrates the base (1) and forms a transverse opening structure on a side of the base (1) away from the circuit slot (2), and the direction from the outer opening of the opening slot (11) to the inner circuit slot (2) is defined as the front-to-back direction; a track slot (12) is provided on the inner side wall located in the left and right directions of the opening slot (11), and the track slot (12) is provided on the inner side wall of the opening slot (11), and the track slot (12) is provided on the inner side wall of the opening slot (11). A probe seat (3) is detachably inserted in the groove (12); the lateral inner end of the probe seat (3) is plugged into the circuit slot (2) to form an electrical connection structure; a probe (4) extending to the bottom of the opening groove (11) is provided at the bottom of the probe seat (3); the probe (4) is used to electrically connect to the product (a) under test; a printed circuit is provided on the probe seat (3); the probe (4), the probe seat (3) and the circuit slot (2) can form a detection circuit system with an external power supply; and a positioning mechanism is provided between the probe seat (3) and the base (1).
2. The insert-type probe seat system according to claim 1, characterized in that: Two track grooves (12) are symmetrically arranged on the left and right inner side walls of the opening groove (11); the opening groove (11) and the track groove (12) form a "cross"-shaped slot hole structure in the longitudinal section profile; the left and right ends of the probe seat (3) can be inserted into the track groove (12) along the front-rear direction.
3. The insert-type probe seat system according to claim 2, characterized in that: The inner end of the probe seat (3) in the front-to-back direction is a plug-in end (31), and the plug-in end (31) is provided with a copper sheet that matches the circuit slot (2). The two sides of the probe seat (3) in the left-to-right direction are provided with positioning grooves (32), and the positioning grooves (32) vertically penetrate the probe seat (3). The base (1) is provided with snap-fitting parts (5) that match the probe seat (3) on the left and right sides of the opening groove (11). The snap-fitting parts (5) can be snap-fitted into the positioning grooves (32) after the probe seat (3) is plugged into place, so as to form a front-to-back displacement constraint structure of the probe seat (3), so that the snap-fitting parts (5) and the positioning grooves (32) constitute the positioning mechanism.
4. The insert-type probe seat system according to claim 3, characterized in that: The base (1) is provided with movable grooves (13) on the left and right sides of the opening groove (11), and the movable groove (13) is a longitudinal slot structure. The outer ends of the track groove (12) in the left and right directions are connected to the movable groove (13). After the left and right edges of the probe seat (3) are inserted into the track groove (12), they can partially extend into the movable groove (13). The buckle (5) can be longitudinally slidably arranged in the movable groove (13). The buckle (5) is provided with a side groove (52) that penetrates the buckle (5) in the front-to-back direction on the side of the buckle (5) close to the track groove (12). When the probe seat (3) is plugged into place, when the side groove (52) and the track groove (12) are misaligned, the inner end of the buckle (5) is clamped in the positioning groove (32) to form a front-to-back displacement constraint structure of the probe seat (3); when the side groove (52) and the track groove (12) are aligned, the constraint is released, and the probe seat (3) can be displaced front-to-back.
5. The insert-type probe seat system according to claim 4, characterized in that: The longitudinal cross-sectional profile of the buckle (5) is an "n"-shaped structure, an inner groove (51) is provided at the center position of the bottom, a spring (6) is provided in the inner groove (51), the expansion and contraction direction of the spring (6) is longitudinally arranged, the longitudinal ends of the spring (6) are respectively in contact with the buckle (5) and the base (1), and the spring (6) constitutes a driving structure for the longitudinal displacement of the buckle (5).
6. The insert-type probe seat system according to claim 1, characterized in that: A drawing groove (33) is provided at the outer end of the probe seat (3) in the front-rear direction.
7. The insert-type probe seat system according to claim 1, characterized in that: The probe (4) is a metal spring clamping structure.
8. The insert-type probe seat system according to claim 7, characterized in that: The top of the probe (4) is an extension portion (41) of a vertical sheet-like structure, the bottom of the extension portion (41) is provided with a bending portion (42), and the inner ends of adjacent bending portions (42) form a clamping gap (43).
9. The insert-type probe seat system according to claim 8, characterized in that: The connection between the extension portion (41) and the bending portion (42) forms an inverted "T"-shaped structure.