Cylindrical battery combination probe

Abstract

The application discloses a cylindrical battery combination probe, which comprises a probe base, a battery contact temperature needle, a negative probe and a positive probe, wherein the battery contact temperature needle, the negative probe and the positive probe are arranged along the central axis of the probe base; the positive probe is arranged at the center of the probe base; the negative probe and the battery contact temperature needle are arranged on the two sides of the positive probe; and the testing ends of the battery contact temperature needle, the negative probe and the positive probe are located on the same side of the probe base. The application has the advantages that the new cylindrical battery can be charged; the short circuit caused by the contact of two current terminals during installation or movement can be prevented; the current passing capacity of the negative probe is improved, and the contact impedance is reduced; the negative probe and the positive probe are simple to install and convenient to replace; and the positioning pin is arranged on the probe base to ensure the installation position accuracy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery manufacturing, in particular to a combined probe for cylindrical battery. BACKGROUND

[0002] The positive and negative poles of the existing cylindrical battery are generally arranged at the head and tail of the battery, so the positive and negative probes of the corresponding charging and discharging machine are arranged above and below the charging and discharging machine. However, for the new type of cylindrical battery (as shown in the figure), the positive pole 5 and the negative pole 6 are both arranged at the head of the battery 9, so the original probe set structure can no longer meet the needs of the charging and discharging of the new type of cylindrical battery. Therefore, it is necessary to develop a new type of combined probe for cylindrical battery to meet the actual needs. Figure 1 SUMMARY

[0003] In order to solve the existing problems, the present application provides a combined probe for cylindrical battery which can normally charge and discharge the new type of cylindrical battery.

[0004] The combined probe for cylindrical battery provided by the present application is characterized in that it comprises a probe base, a battery contact type temperature probe, a negative pole probe and a positive pole probe, the battery contact type temperature probe, the negative pole probe and the positive pole probe are all arranged along the central axis of the probe base and penetrate the probe base, the positive pole probe is arranged at the center of the probe base, the negative pole probe and the battery contact type temperature probe are arranged on the two sides of the positive pole probe, and the test ends of the battery contact type temperature probe, the negative pole probe and the positive pole probe are all located on the same side of the probe base.

[0005] Further, the probe base has opposite first and second end faces, and a base mounting through hole which penetrates the first and second end faces is arranged on the probe base;

[0006] A positive pole probe anti-rotation up-down movement sliding sleeve is arranged at the center of the probe base for guiding the up-down movement of the positive pole probe, and a negative pole probe anti-rotation up-down movement sliding sleeve is arranged at one end of the probe base for guiding the up-down movement of the negative pole probe;

[0007] A positive and negative pole probe upper end intermediate partition plate and a positive and negative pole probe lower end intermediate partition plate are arranged between the positive pole probe anti-rotation up-down movement sliding sleeve and the negative pole probe anti-rotation up-down movement sliding sleeve, the positive and negative pole probe upper end intermediate partition plate and the positive and negative pole probe lower end intermediate partition plate are arranged on the first and second end faces of the probe base, the positive and negative pole probe upper end intermediate partition plate is used to prevent the two current terminals from contacting and causing short circuit during installation or movement, and the positive and negative pole probe lower end intermediate partition plate is used to prevent the probe from contacting the battery in a skewed manner and causing short circuit.

[0008] ​Further, at least one positioning pin is arranged on the first end surface of the probe base for positioning the probe base to ensure the installation position accuracy.

[0009] Further, the negative probe comprises a negative probe rod body, a negative voltage terminal, a negative current terminal, a first compression spring, a negative probe head Teflon sheath, a negative current tooth surface type contact head and a negative voltage measurement tooth surface type contact head.

[0010] The negative probe rod body is a hollow tube with a first end and a second end, the negative probe rod body is arranged in the negative probe anti-rotation up-down movement sliding sleeve, and the first end and the second end are located on the two sides of the probe base respectively.

[0011] The first end of the negative probe rod body is provided with the negative current tooth surface type contact head and the negative voltage measurement tooth surface type contact head, and the surface of the negative voltage measurement tooth surface type contact head exceeds the surface of the negative current tooth surface type contact head.

[0012] The second end of the negative probe rod body is provided with the negative voltage terminal and the negative current terminal, and the negative current terminal is electrically connected with the negative current tooth surface type contact head, and the negative voltage terminal is electrically connected with the negative voltage measurement tooth surface type contact head.

[0013] The negative probe head Teflon sheath is connected to the first end through the first compression spring, and the negative probe head Teflon sheath is arranged around the current tooth surface type contact head and the negative voltage measurement tooth surface type contact head.

[0014] Further, the first end of the negative probe rod body is a circular contact in cross section, and the negative probe rod body is a hollow circular rod cut symmetrically on the side surface.

[0015] Further, the negative voltage measurement tooth surface type contact head is located at the center of the negative current tooth surface type contact head.

[0016] Further, the positive probe comprises a positive probe rod body, a positive voltage terminal, a positive current terminal, a second compression spring, a positive probe head Teflon sheath, a positive current tooth surface type contact head and a positive voltage measurement tooth surface type contact head.

[0017] The positive probe rod body is a hollow tube with a first end and a second end, the positive probe rod body is arranged in the positive probe anti-rotation up-down movement sliding sleeve, and the first end and the second end of the positive probe rod body are located on the two sides of the probe base respectively.

[0018] The first end of the positive probe rod body is provided with a positive current tooth surface type contact head and a positive voltage measurement tooth surface type contact head, and the surface of the positive voltage measurement tooth surface type contact head exceeds the surface of the positive current tooth surface type contact head;

[0019] The second end of the positive probe rod body is provided with the positive voltage terminal and the positive current terminal, and the positive current terminal is electrically connected with the positive current tooth surface type contact head, and the positive voltage terminal is electrically connected with the positive voltage measurement tooth surface type contact head;

[0020] The positive probe head Teflon sheath is connected to the first end through the second compression spring, and the positive probe head Teflon sheath surrounds the current tooth surface type contact head and the positive voltage measurement tooth surface type contact head.

[0021] Further, the first end of the negative probe rod body is a circular contact head, and the negative probe rod body is a hollow circular rod.

[0022] Further, the positive voltage measurement tooth surface type contact head is located at the center of the positive current tooth surface type contact head.

[0023] Further, the positive voltage measurement tooth surface type contact head and the negative voltage measurement tooth surface type contact head are flush, and the positive current tooth surface type contact head and the negative current tooth surface type contact head are flush.

[0024] The beneficial effects of the present application are: (1) the positive probe and the negative probe are located on the same side, and the new type of cylindrical battery can be charged; (2) the positive probe and the negative probe are separated by the intermediate partition plate at the upper end of the positive probe and the negative probe, which can prevent the short circuit phenomenon caused by the contact of the two current terminals during installation or movement; (3) the positive probe and the negative probe are separated by the intermediate partition plate at the lower end of the positive probe and the negative probe, which can prevent the short circuit phenomenon caused by the skew of the contact position of the probe and the battery; (4) the current tooth surface type contact head has a large contact position with the negative electrode of the battery, which improves the current passing capacity of the negative probe and reduces the contact impedance; (5) the entire negative probe and positive probe are simple to install and convenient to replace; (6) the probe base is provided with a positioning pin to ensure the installation position accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural diagram of the new type of cylindrical battery of the present application.

[0026] Figure 2 is a structural diagram of the cylindrical battery combination probe of the present application.

[0027] Figure 3 is a structural diagram of the probe base of the present application.

[0028] Figure 4is a structural diagram of a negative electrode probe of the present application.

[0029] Figure 5 is a structural diagram of a positive electrode probe of the present application.

[0030] Figure 6 is a schematic diagram of contact positions of the positive electrode probe and the negative electrode probe of the present application on a new type of cylindrical battery.

[0031] Figure 7 is a schematic diagram of contact of the cylindrical battery combination probe of the present application and a new type of cylindrical battery. DETAILED DESCRIPTION

[0032] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0033] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0034] The present application will be described in detail below with reference to the accompanying drawings and in combination with exemplary embodiments.

[0035] The cylindrical battery combination probe of the present application comprises a probe base 1, a battery contact type temperature needle 2, a negative electrode probe 3 and a positive electrode probe 4. The battery contact type temperature needle 2, the negative electrode probe 3 and the positive electrode probe 4 are all arranged along the central axis direction of the probe base 1. The positive electrode probe 4 is arranged at the center of the probe base 1. The negative electrode probe 3 and the battery contact type temperature needle 2 are arranged on the two sides of the positive electrode probe 4. The test ends of the battery contact type temperature needle 2, the negative electrode probe 3 and the positive electrode probe 4 are all located on the same side of the probe base 1.

[0036] The probe base 1 has opposite first and second end faces. The two end portions of the probe base 1 are each provided with a base mounting through hole 16 which can penetrate the first and second end faces.

[0037] The center of the probe base 1 is provided with a positive electrode probe anti-rotation up-down movement sliding sleeve 14 for guiding the up-down movement of the positive electrode probe. One end portion of the probe base 1 is provided with a negative electrode probe anti-rotation up-down movement sliding sleeve 17 for guiding the up-down movement of the negative electrode probe.

[0038] The positive probe anti-rotation up-down movement sliding sleeve 14 and the negative probe anti-rotation up-down movement sliding sleeve 17 are provided with a positive and negative probe upper end intermediate partition plate 12 and a positive and negative probe lower end intermediate partition plate 13, wherein the positive and negative probe upper end intermediate partition plate 12 and the positive and negative probe lower end intermediate partition plate 13 are respectively arranged on the first end face and the second end face of the probe base 1.

[0039] Two positioning pins 15 are arranged at the diagonal positions of the first end face of the probe base 1.

[0040] The negative probe 3 comprises a negative probe rod body 35, a negative voltage terminal 34, a negative current terminal 31, a first compression spring 32, a negative probe head Teflon sheath 33, a negative current tooth surface type contact head 37, and a negative voltage tooth surface type contact head 36.

[0041] The negative probe rod body 35 is a hollow pipe with a first end and a second end, the negative probe rod body 35 is arranged in the negative probe anti-rotation up-down movement sliding sleeve 17, and the first end and the second end of the negative probe rod body 35 are respectively located on the two sides of the probe base 1.

[0042] The first end of the negative probe rod body 35 is provided with the negative current tooth surface type contact head 37 and the negative voltage tooth surface type contact head 36, and the surface of the negative voltage tooth surface type contact head 36 exceeds the surface of the negative current tooth surface type contact head 37.

[0043] The second end of the negative probe rod body 35 is provided with the negative voltage terminal 34 and the negative current terminal 31, and the negative current terminal 31 is electrically connected with the negative current tooth surface type contact head 37, and the negative voltage terminal 34 is electrically connected with the negative voltage tooth surface type contact head 36.

[0044] The negative probe head Teflon sheath 33 is connected to the first end of the negative probe rod body 35 through the first compression spring 32, and the negative probe head Teflon sheath 33 is arranged around the current tooth surface type contact head 37 and the negative voltage tooth surface type contact head 36, for preventing the first end of the negative probe 3 and the positive probe 4 from contacting each other.

[0045] The first end of the negative probe rod body 35 is a circular contact head, and the negative probe rod body 35 is a hollow circular rod cut symmetrically on the side surface, which aims to increase the first contact position 8 (as shown in Figure 6 ) of the negative current tooth surface type contact head 37 of the negative probe 3 and the battery negative electrode 6, improve the current passing capacity of the negative probe 3, and reduce the contact impedance.

[0046] The negative voltage tooth surface contact head 36 is located at the center of the negative current tooth surface contact head 37.

[0047] The positive probe 4 includes a positive probe rod body 45, a positive voltage terminal 44, a positive current terminal 41, a second compression spring 42, a positive probe head Teflon sheath 43, a positive current tooth surface contact head 47, and a positive voltage tooth surface contact head 46.

[0048] The positive probe rod body 4 is a hollow tube with a first end and a second end, which is arranged in the positive probe anti-rotation up-down movement sliding sleeve 14, and the first end and the second end of the positive probe rod body 45 are located on both sides of the probe base 1.

[0049] The first end of the positive probe rod body 45 is provided with the positive current tooth surface contact head 47 and the positive voltage tooth surface contact head 46, and the surface of the positive voltage tooth surface contact head 46 exceeds the surface of the positive current tooth surface contact head 47.

[0050] The second end of the positive probe rod body 45 is provided with the positive voltage terminal 44 and the positive current terminal 41, and the positive current terminal 41 is electrically connected with the positive current tooth surface contact head 47, and the positive voltage terminal 44 is electrically connected with the positive voltage tooth surface contact head 46.

[0051] The positive probe head Teflon sheath 43 is connected to the first end of the positive probe rod body 45 through the second compression spring 42, and surrounds the positive current tooth surface contact head 47 and the positive voltage tooth surface contact head 46, so as to prevent the first end of the negative probe 3 and the positive probe 4 from contacting each other.

[0052] The first end of the positive probe rod body 45 is a circular contact head, and the positive probe rod body 45 is a hollow circular rod, which aims to increase the second contact position 7 (as shown in Figure 6 ) of the positive current tooth surface contact head 47 of the positive probe 4 and the battery positive pole 5, improve the current passing capacity of the positive probe 3, and reduce the contact impedance.

[0053] The positive voltage tooth surface contact head is located at the center of the positive current tooth surface contact head 47.

[0054] The positive voltage tooth surface contact head 46 and the negative voltage tooth surface contact head 36 are flush, and the positive current tooth surface contact head 47 and the negative current tooth surface contact head 37 are flush.

[0055] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0056] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated thereby. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0057] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cylindrical battery probe assembly, characterized in that: The device includes a probe base, a battery contact temperature needle, a negative electrode probe, and a positive electrode probe. The battery contact temperature needle, the negative electrode probe, and the positive electrode probe are all inserted into the probe base along the central axis of the probe base. The positive electrode probe is located in the center of the probe base, and the negative electrode probe and the battery contact temperature needle are arranged on both sides of the positive electrode probe. The test ends of the battery contact temperature needle, the negative electrode probe, and the positive electrode probe are all located on the same side of the probe base. The negative electrode probe includes a negative electrode probe rod body, a negative electrode voltage terminal, a negative electrode current terminal, a first compression spring, a Teflon sheath for the negative electrode probe head, a negative electrode current toothed contact head, and a negative electrode voltage measuring toothed contact head. The negative electrode probe rod body is a hollow tube with a first end and a second end. The negative electrode probe rod body is inserted into the negative electrode probe anti-rotation up and down movement sliding sleeve, and the first end and the second end are respectively located on both sides of the probe base. The first end of the negative electrode probe rod body is provided with a negative electrode current toothed contact head and a negative electrode voltage measuring toothed contact head, and the surface of the negative electrode voltage measuring toothed contact head extends beyond the surface of the negative electrode current toothed contact head. The second end of the negative electrode probe rod body is provided with a negative electrode voltage terminal and a negative electrode current terminal, and the negative electrode current terminal is electrically connected to the negative electrode current toothed contact head, and the negative electrode voltage terminal is electrically connected to the negative electrode voltage measuring toothed contact head. The Teflon sheath of the negative electrode probe is connected to the first end via the first compression spring, and the Teflon sheath of the negative electrode probe surrounds the negative electrode current toothed contact and the negative electrode voltage toothed contact.

2. The cylindrical battery assembly probe as described in claim 1, characterized in that: The probe base has a first end face and a second end face that are opposite to each other, and the probe base is provided with a base mounting through hole that simultaneously passes through the first end face and the second end face. The probe base has a positive probe anti-rotation sliding sleeve at its center for guiding the up and down movement of the positive probe; one end of the probe base has a negative probe anti-rotation sliding sleeve for guiding the up and down movement of the negative probe. The positive probe anti-rotation sliding sleeve and the negative probe anti-rotation sliding sleeve are provided with an upper middle partition plate and a lower middle partition plate for the positive and negative probes, wherein the upper middle partition plate and the lower middle partition plate are respectively disposed on the first end face and the second end face of the probe base.

3. The cylindrical battery assembly probe as described in claim 2, characterized in that: At least one positioning pin is provided on the first end face of the probe base.

4. The cylindrical battery assembly probe as described in claim 1, characterized in that: The first end of the negative electrode probe rod body has a circular contact section, and the negative electrode probe rod body is a hollow circular rod with symmetrical side cuts.

5. A cylindrical battery assembly probe as described in claim 4, characterized in that: The negative electrode voltage measuring toothed contact is located at the center of the negative electrode current measuring toothed contact.

6. A cylindrical battery assembly probe as described in claim 1, characterized in that: The positive probe includes a positive probe rod body, a positive voltage terminal, a positive current terminal, a second compression spring, a Teflon sheath for the positive probe head, a positive current toothed contact head, and a positive voltage toothed contact head. The positive electrode probe rod body is a hollow tube with a first end and a second end. The positive electrode probe rod body is inserted into the anti-rotation sliding sleeve of the positive electrode probe, and the first end and the second end of the positive electrode probe rod body are respectively located on both sides of the probe base. The first end of the positive electrode probe rod body is provided with a positive electrode current toothed contact and a positive electrode voltage toothed contact, and the surface of the positive electrode voltage toothed contact extends beyond the surface of the positive electrode current toothed contact. The second end of the positive probe rod body is provided with a positive voltage terminal and a positive current terminal, and the positive current terminal is electrically connected to the positive current toothed contact head, and the positive voltage terminal is electrically connected to the positive voltage measuring toothed contact head. The positive electrode probe tip Teflon sheath is connected to the first end via the second compression spring, and the positive electrode probe tip Teflon sheath surrounds the current toothed contact head and the positive electrode voltage measuring toothed contact head.

7. A cylindrical battery assembly probe as described in claim 6, characterized in that: The first end of the positive electrode probe rod body has a circular contact section, and the positive electrode probe rod body is a hollow round rod.

8. A cylindrical battery assembly probe as described in claim 7, characterized in that: The positive electrode voltage measuring toothed contact is located at the center of the positive electrode current measuring toothed contact.

9. A cylindrical battery assembly probe as described in claim 1, characterized in that: The positive electrode voltage measuring toothed contact and the negative electrode voltage measuring toothed contact are flush, and the positive electrode current measuring toothed contact and the negative electrode current measuring toothed contact are flush.

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