Parallel double-sampling guillotine current probe

Abstract

The utility model belongs to the technical field of electric connectors, and particularly relates to a parallel type double-sampling guillotine current probe, which comprises a probe main body, a probe seat, an outer spring, an inner spring and a voltage probe, the probe main body is provided with a probe head and a probe rod, the outer spring and the probe seat are sleeved outside the probe rod, the outer spring is limited between the probe head and the probe seat, and the inner spring is limited between the probe head and the probe seat. The top of the probe rod is connected with a fastener used for limiting the probe seat from being separated from the probe rod, a vertical needle hole through which the probe head penetrates out of the probe rod is formed in the probe body, the voltage needle is provided with a lower sampling part and an upper conductive part, insulation is formed between the voltage needle and the probe body, and the upper conductive part penetrates out of the vertical needle hole and is positioned with the top of the probe rod through a positioning piece. The inner spring is sleeved outside the upper conductive part and is used for resetting the pressed voltage probe, the lower sampling part is positioned below the probe head, and voltage sampling teeth are respectively arranged on the lower sampling part close to the bottoms of two transverse ends of the lower sampling part. The utility model has the advantages that the sampling stress is uniform, and the current transmission effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric connectors, and in particular relates to a parallel double-sampling guillotine current probe. Background Art

[0002] In the existing formation and capacitance probe industry, due to the structural requirements of some battery tabs, the voltage needle cannot sample at the center of the positive and negative electrodes, and needs to be made into an eccentric structure. Considering the force balance, double sampling is generally done. However, during the equipment installation process, it is necessary to manually weld the welding wire at the tail of the sampling needle, and the two needles may have the problem of inconsistent height. In this way, the force during welding causes the voltage needle to be skewed, which is easy to cause poor welding; and it is also easy to cause uneven force due to the different heights of the double sampling, resulting in poor use effect. Utility Model Content

[0003] The utility model aims to provide a parallel double-sampling guillotine current probe, aiming to solve the technical problems of poor welding and uneven sampling force in the prior art of the divided capacity probe adopting a double-needle structure design.

[0004] To achieve the above-mentioned purpose, the utility model embodiment provides a parallel double-sampling guillotine current probe, including a probe body, a probe seat, an outer spring, an inner spring and a voltage needle, the probe body has a probe head and a probe rod forming an inverted T shape, the outer spring and the probe seat are both sleeved outside the probe rod, and the outer spring is limited between the probe head and the probe seat, the top of the probe rod is connected with a fastener for limiting the probe seat from escaping from the probe rod, a vertical pin hole is provided in the probe body through which the probe head passes through the probe rod, the voltage needle has a lower sampling part and an upper conductive part forming an inverted T shape, an insulating arrangement is formed between the voltage needle and the probe body, the upper conductive part passes through the vertical pin hole and is positioned and connected to the top of the probe rod through a positioning member, the inner spring is sleeved outside the upper conductive part and is used to reset the voltage needle after being pressed down, the lower sampling part is located below the probe head, and the bottom of the lower sampling part near its two lateral ends is respectively provided with voltage sampling teeth for contacting the battery electrodes.

[0005] Optionally, a bottom transverse groove is provided at the bottom of the probe head, and at least a part of the structure of the down-sampling part is accommodated in the bottom transverse groove.

[0006] Optionally, an insulating tube assembly located in the vertical pin hole and the bottom horizontal groove is provided outside the voltage pin, and the voltage pin is insulated from the probe body through the insulating tube assembly.

[0007] Optionally, the insulating tube assembly includes a first straight tube, a second straight tube and a T-shaped tube; the T-shaped tube is inserted into the vertical pin hole in the bottom horizontal groove, the second straight tube is connected and fixed to the T-shaped tube, and the first straight tube is connected and fixed to the second straight tube; the inner spring is located in the second straight tube, and its upper end is limited to the edge of the hole in the second straight tube, and the lower end is abutted against the T-shaped tube.

[0008] Optionally, the first straight tube, the second straight tube and the T-shaped tube are all high temperature resistant nylon tubes.

[0009] Optionally, the positioning member includes a plug and a pin, the plug is tightly plugged into the top of the vertical pin hole, the upper conductive part passes through the plug, and the pin is transversely penetrated to connect the plug and the upper conductive part.

[0010] Optionally, the fastener includes a first nut, a second nut and a spring sheet. The outer periphery of the upper end of the probe rod is provided with an external thread. The first nut is threadedly connected to the external thread and inserted and clamped on the upper end of the probe seat. The spring sheet is sleeved outside the probe rod and located on the first nut. The second nut is threadedly connected to the external thread and presses against the spring sheet.

[0011] Optionally, a limiting groove for accommodating and limiting the top of the outer spring is provided at the bottom of the probe seat.

[0012] Optionally, an external connection plate is extended from the periphery of the probe seat, and a connection hole is provided on the external connection plate.

[0013] The above one or more technical solutions in the parallel dual sampling guillotine current probe provided by the embodiment of the utility model have at least the following technical effects:

[0014] 1. Compared with the traditional two-needle mode, the design is improved to a single voltage needle in parallel. In this way, the telescopic function only needs one inner spring, which can move more stably and smoothly during the compression process, reducing the risk of jamming;

[0015] 2. Due to the design of a single voltage needle in parallel, when welding the wire at the tail of the upper conductive part, only one point needs to be welded. The voltage needle will not be uneven due to the problem of welding method. The voltage sampling teeth on both sides of the bottom of the lower sampling part can be used to sample the voltage evenly at the same time.

[0016] 3. After the voltage pin structure is made into an integrated single pin, the design of the down sampling part increases the coverage area of ​​the voltage pin. Compared with the circular bottom structure of the prior art, the contact area of ​​the voltage pin of this embodiment is enlarged, so that the battery surface oxide layer and foreign matter can be tolerated to a greater extent;

[0017] 4. The integrated single voltage needle can be formed by stamping blanks, which has lower manufacturing costs, production yield, and mechanical failures during later customer use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A schematic structural diagram of a parallel dual sampling guillotine current probe provided in an embodiment of the utility model.

[0020] Figure 2 A schematic diagram of the structural decomposition of a parallel dual sampling guillotine current probe provided in an embodiment of the utility model.

[0021] Figure 3 A cross-sectional view of the parallel dual sampling guillotine current probe provided by an embodiment of the utility model with the outer spring hidden.

[0022] Figure 4 A schematic structural diagram of a voltage needle of a parallel dual sampling guillotine current probe provided in an embodiment of the utility model.

[0023] Figure 5 A schematic diagram of the structure of a parallel dual sampling guillotine current probe for measuring the voltage of a battery provided in an embodiment of the utility model.

[0024] Among them, the reference numerals in the figure are:

[0025] 10—probe body 11—probe head 12—probe rod

[0026] 20—probe seat 21—external board 22—connection hole

[0027] 23 - limit groove 30 - outer spring 40 - inner spring

[0028] 50 - voltage needle 51 - lower sampling part 52 - upper conductive part

[0029] 60—Fastener 61—First nut 62—Second nut

[0030] 63—spring piece 70—insulating tube assembly 71—first straight tube

[0031] 72 - second straight tube 73 - T-shaped tube 80 - positioning piece

[0032] 81 - plug 82 - pin 100 - battery

[0033] 111—bottom horizontal groove 121—vertical pin hole 122—external thread

[0034] 511—Voltage sampling teeth. DETAILED DESCRIPTION

[0035] The following describes the embodiments of the present invention in detail, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 5 The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0036] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0038] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0039] In one embodiment of the present invention, Figures 1-2 As shown, a parallel dual sampling guillotine current probe is provided, which can reduce the voltage acquisition instability caused by the wire bonding process and enhance the structural and logical stability of the voltage needle 50 acquisition. Figure 5The parallel dual sampling guillotine current probe of this embodiment is shown to be used for voltage electrode sampling of the battery 100 .

[0040] Specifically, the parallel double sampling guillotine current probe of this embodiment includes a probe body 10, a probe seat 20, an outer spring 30, an inner spring 40 and a voltage needle 50. The probe body 10 has a probe head 11 and a probe rod 12 in an inverted T shape, which can be made of beryllium copper and has good conductive function. The outer spring 30 and the probe seat 20 are both sleeved outside the probe rod 12, and the outer spring 30 is limited between the probe head 11 and the probe seat 20. The top of the probe rod 12 is connected with a fastener 60 for limiting the probe seat 20 from escaping from the probe rod 12. The probe body 10 is provided with a vertical pinhole 121 that passes through the probe head 11 and the probe rod 12.

[0041] Recombination Figure 4 The voltage needle 50 has a lower sampling portion 51 and an upper conductive portion 52 forming an inverted T shape, an insulation arrangement is formed between the voltage needle 50 and the probe body 10, the upper conductive portion 52 passes through the vertical needle hole 121 and is positioned and connected to the top of the probe rod 12 through a positioning member 80, the inner spring 40 is sleeved outside the upper conductive portion 52 and is used to reset the voltage needle 50 after being pressed down, the lower sampling portion 51 is located below the probe head 11, and the lower sampling portion 51 is provided with voltage sampling teeth 511 for contacting the electrodes of the battery 100 near the bottom of its two lateral ends.

[0042] The parallel dual sampling guillotine current probe provided by the embodiment of the utility model has at least the following technical effects:

[0043] 1. Compared with the traditional two-pin mode, the improved design is a parallel integrated single voltage pin 50. In this way, the telescopic function only needs one inner spring 40, which can move more stably and smoothly during the compression process, reducing the risk of jamming;

[0044] 2. Due to the design of the parallel integrated single voltage needle 50, when welding the wire at the tail of the upper conductive part 52, only one point needs to be welded, and the voltage needle 50 will not be uneven due to the problem of welding method. The voltage sampling teeth 511 on both sides of the bottom of the lower sampling part can be used to uniformly sample the voltage at the same time;

[0045] 3. After the voltage needle 50 is made into an integrated single structure, the design of the downsampling portion increases the coverage area of ​​the voltage needle 50. Compared with the circular bottom structure of the prior art, the contact area of ​​the voltage needle 50 of this embodiment is enlarged, so that the surface oxide layer and foreign matter of the battery 100 can be more tolerant;

[0046] 4. The integrated single voltage needle 50 can be formed by stamping blanks, which has lower manufacturing costs, lower production yield, and lower mechanical failures during later customer use.

[0047] In one embodiment of the present invention, Figure 1 and 3 As shown, the bottom of the probe head 11 is provided with a bottom transverse groove 111, and at least part of the structure of the down-sampling part 51 is accommodated in the bottom transverse groove 111. Specifically, in this way, the down-sampling part 51 can be protected by the bottom transverse groove 111. More importantly, it can also ensure that it also has a limiting function. When the down-sampling part 51 is used to contact the battery 100 for voltage electrode sampling, under the protection of the bottom transverse groove 111, the down-sampling part 51 is not prone to misalignment, ensuring the stability of the voltage electrode of the battery 100.

[0048] In one embodiment of the present invention, Figure 2 and 3 As shown, an insulating tube assembly 70 located in the vertical pin hole 121 and the bottom horizontal groove 111 is provided outside the voltage needle 50, and the voltage needle 50 is insulated from the probe body 10 by the insulating tube assembly 70. The setting of the insulating tube assembly 70 can isolate the voltage needle 50 and the probe body 10, thereby ensuring insulation between the two and realizing normal voltage collection work of the parallel dual sampling guillotine current probe.

[0049] In one embodiment of the present invention, Figures 2-3 As shown, the insulating tube assembly 70 includes a first straight tube 71, a second straight tube 72 and a T-shaped tube 73; the T-shaped tube 73 is inserted into the vertical pin hole 121 in the bottom horizontal groove 111, the second straight tube 72 is connected and fixed to the T-shaped tube 73, and the first straight tube 71 is connected and fixed to the second straight tube 72; the inner spring 40 is located in the second straight tube 72, and its upper end is limited to the hole edge in the second straight tube 72, and the lower end is abutted against the T-shaped tube 73. Specifically, the insulating tube assembly 70 composed of three tubes is easy to install, and realizes the complete peripheral covering of the voltage pin 50 forming an inverted T shape, ensuring the effectiveness of insulation. In addition, the aperture in the second straight tube 72 can be designed to be larger to accommodate the inner spring 40.

[0050] Preferably, the first straight tube 71 , the second straight tube 72 and the T-shaped tube 73 in this embodiment are all high temperature resistant nylon tubes.

[0051] In one embodiment of the present invention, Figures 1 to 3As shown, the positioning member 80 includes a plug 81 and a pin 82, the plug 81 is plugged tightly at the top of the vertical pin hole 121, the upper conductive part 52 passes through the plug 81, and the pin 82 is horizontally penetrated to connect the plug 81 and the upper conductive part 52. Specifically, the plug 81 plugs the top of the vertical pin hole 121, passes through the upper conductive part 52, and then the pin 82 is added to penetrate horizontally to lock the plug 81 and the upper conductive part 52, so that the entire voltage pin 50 can be stably fixed.

[0052] In one embodiment of the present invention, Figures 1 to 3 As shown, the fastener 60 includes a first nut 61, a second nut 62 and a spring piece 63. The outer periphery of the upper end of the probe rod 12 is provided with an external thread 122. The first nut 61 is threadedly connected to the external thread 122 and inserted and clamped on the upper end of the probe seat 20. The spring piece 63 is sleeved outside the probe rod 12 and located on the first nut 61. The second nut 62 is threadedly connected to the external thread 122 and presses against the spring piece 63. Specifically, the first nut 61 can be used to connect and fix the probe rod 12 and the probe seat 20, that is, the first nut 61 is partially inserted into the probe seat 20 to achieve a tight fit, and the first nut 61 is then threadedly connected to the external thread 122 of the probe rod 12 to achieve thread locking. After that, the spring piece 63 is sleeved on the probe rod 12, and finally the second nut 62 is locked with the external thread 122 on the probe rod 12, and the spring piece 63 is pressed between the first nut 61 and the second nut 62, so that other cable terminals can be connected at this position, and the connected cable terminals can be between the first nut 61 and the second nut 62, and are locked together by the compression of the spring piece 63. Among them, the first nut 61 and the second nut 62 achieve the function equivalent to tightening the terminal, and realize the function of conducting current from the terminal through the first nut 61.

[0053] In one embodiment of the present invention, Figure 3 As shown, the bottom of the probe seat 20 is provided with a limiting groove 23 for accommodating and limiting the top of the outer spring 30. The setting of the limiting groove 23 can limit the position of the outer spring 30 to prevent it from being misplaced during compression or rebound, which affects the use effect.

[0054] In one embodiment of the present invention, Figures 1 to 3 As shown, an external connecting plate 21 is extended from the periphery of the probe seat 20, and a connecting hole 22 is provided on the external connecting plate 21. The connecting hole 22 is provided on the external connecting plate 21 so that it can be conveniently connected with other components for use.

[0055] The parallel double sampling guillotine current probe of the utility model is a parallel voltage needle 50 material, using phosphor bronze sheet material, and processed by stamping and machining center. This type of process is very mature and controllable. At the same time, after reducing the number of parts, the mechanical structure is simpler, the failure rate is relatively lower, and it is more conducive to long-term continuous working life.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A parallel dual sampling guillotine current probe, characterized in that: The utility model comprises a probe body, a probe seat, an outer spring, an inner spring and a voltage needle, wherein the probe body comprises a probe head and a probe rod forming an inverted T shape, the outer spring and the probe seat are both sleeved outside the probe rod, and the outer spring is limited between the probe head and the probe seat, the top of the probe rod is connected with a fastener for limiting the probe seat from escaping from the probe rod, the probe body is provided with a vertical pin hole through which the probe head passes through the probe rod, the voltage needle comprises a lower sampling part and an upper conductive part forming an inverted T shape, an insulating arrangement is formed between the voltage needle and the probe body, the upper conductive part passes through the vertical pin hole and is positioned and connected with the top of the probe rod through a positioning member, the inner spring is sleeved outside the upper conductive part and is used to reset the voltage needle after being pressed down, the lower sampling part is located below the probe head, and the bottom of the lower sampling part near its two lateral ends is respectively provided with voltage sampling teeth for contacting the battery electrodes.

2. The parallel dual sampling guillotine current probe according to claim 1, characterized in that: A bottom transverse groove is arranged at the bottom of the probe head, and at least a part of the structure of the lower sampling part is accommodated in the bottom transverse groove.

3. The parallel dual sampling guillotine current probe according to claim 2, characterized in that: An insulating tube assembly located in the vertical pin hole and the bottom horizontal groove is arranged outside the voltage pin, and the voltage pin is insulated from the probe body through the insulating tube assembly.

4. The parallel dual sampling guillotine current probe according to claim 3, characterized in that: The insulating tube assembly includes a first straight tube, a second straight tube and a T-shaped tube; the T-shaped tube is inserted into the vertical pin hole in the bottom horizontal groove, the second straight tube is connected and fixed to the T-shaped tube, and the first straight tube is connected and fixed to the second straight tube; the inner spring is located in the second straight tube, and its upper end is limited to the hole edge in the second straight tube, and the lower end is abutted against the T-shaped tube.

5. The parallel dual sampling guillotine current probe according to claim 4, characterized in that: The first straight tube, the second straight tube and the T-shaped tube are all high temperature resistant nylon tubes.

6. The parallel dual sampling guillotine current probe according to any one of claims 1 to 5, characterized in that: The positioning member includes a plug and a pin, the plug is tightly plugged into the top of the vertical pin hole, the upper conductive part passes through the plug, and the pin is transversely penetrated to connect the plug and the upper conductive part.

7. The parallel dual sampling guillotine current probe according to any one of claims 1 to 5, characterized in that: The fastener includes a first nut, a second nut and a spring sheet. The outer periphery of the upper end of the probe rod is provided with an external thread. The first nut is threadedly connected to the external thread and inserted and clamped on the upper end of the probe seat. The spring sheet is sleeved outside the probe rod and located on the first nut. The second nut is threadedly connected to the external thread and presses against the spring sheet.

8. The parallel dual sampling guillotine current probe according to any one of claims 1 to 5, characterized in that: The bottom of the probe seat is provided with a limiting groove for accommodating and limiting the top of the outer spring.

9. The parallel dual sampling guillotine current probe according to any one of claims 1 to 5, characterized in that: An external connection plate is extended from the outer periphery of the probe seat, and a connection hole is arranged on the external connection plate.

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