Battery pack detection device

Abstract

The invention relates to the technical field of lithium battery pack detection, and discloses a battery pack detection device which is characterized in that a holding part of a shell is used for holding, and a sliding groove is formed in a mounting part; the circuit board is arranged in the shell; the positive electrode pin and the negative electrode pin are arranged in parallel in the first direction and installed in the sliding grooves respectively, at least one of the positive electrode pin and the negative electrode pin can move relative to the shell in the second direction, the positive electrode pin is electrically connected with the circuit board through a positive electrode connecting piece, and the negative electrode pin is electrically connected with the circuit board through a negative electrode connecting piece; the information feedback piece is mounted on the display part, is electrically connected with the circuit board and is used for feeding back information of the battery cell; the first direction is perpendicular to the second direction. According to the arrangement, the battery pack detection device is relatively small in size and convenient to carry and use. And the positive electrode pin and / or the negative electrode pin are / is arranged in an adjustable manner, so that the battery pack detection device can be adaptively plugged with to-be-detected pieces of more models, and the applicability of the battery pack detection device is wider.

Description

Technical Field

[0001] This invention relates to the field of lithium battery pack testing technology, and more particularly to a battery pack testing device. Background Technology

[0002] With the continuous development of battery cell technology and the increasingly diversified needs of electrical devices for lithium battery packs, the market offers a growing number of lithium battery pack models that are constantly being updated. This has led to users having various battery packs of different models lying idle, some new and some old. After using these battery packs for a period of time, users become unsure about their performance, whether they are good or bad, and whether they need to be scrapped. They also don't know how much capacity is left inside the battery pack or how long it can be used. This lack of information about the battery pack's condition causes inconvenience for users, making it difficult for them to quickly assess the battery pack's status.

[0003] Newly launched battery packs or chargers now have built-in Bluetooth, allowing users to report battery cell status via mobile apps. Previous models of battery packs did not have this feature, and chargers for different models of battery packs were difficult to adapt to each other. They also required testing with professional, large-scale testing equipment, which is bulky, inconvenient to carry, expensive, and cumbersome to operate.

[0004] Therefore, there is an urgent need for a battery pack testing device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a battery pack testing device to solve the problems of difficulty in obtaining the status of battery cells in the battery pack, the limited means of detecting the status of battery cells, the difficulty in widespread use, and the low versatility of the testing device.

[0006] On one hand, the present invention provides a battery pack testing device, the battery pack testing device comprising:

[0007] The housing includes a grip portion, a display portion, and a mounting portion, wherein the grip portion is used for gripping, and the mounting portion is provided with a sliding groove;

[0008] The circuit board is installed inside the aforementioned housing;

[0009] The positive and negative terminals are arranged parallel to each other along a first direction and are respectively installed in the slide groove. At least one of the positive and negative terminals can move relative to the housing along a second direction. The positive terminal is electrically connected to the circuit board through a positive terminal connector, and the negative terminal is electrically connected to the circuit board through a negative terminal connector.

[0010] An information feedback element is installed on the aforementioned display unit and is electrically connected to the aforementioned circuit board for feeding back information about the battery cell.

[0011] The first direction mentioned above is perpendicular to the second direction mentioned above.

[0012] As a preferred embodiment of the aforementioned battery pack testing device, both the positive terminal and the negative terminal are able to slide relative to the housing along the second direction, and the positive terminal and the negative terminal are able to move closer to each other and further away from each other in the second direction.

[0013] As a preferred embodiment of the above-mentioned battery pack detection device, the inner sidewall of the slide groove is provided with a guide groove, and the guide groove includes two limiting surfaces that are disposed opposite to each other in the first direction.

[0014] The positive electrode pin is fixedly provided with a positive electrode slider, which is slidably inserted into the guide groove and sandwiched between the two limiting surfaces.

[0015] And / or, the negative electrode pin is fixedly provided with a negative electrode slider, the negative electrode slider is slidably inserted into the guide groove and sandwiched between the two limiting surfaces.

[0016] As a preferred embodiment of the aforementioned battery pack testing device, the positive electrode slider and / or the negative electrode slider are insulating components.

[0017] As a preferred embodiment of the aforementioned battery pack testing device, the positive electrode connector is a conductive flexible component, and / or the negative electrode connector is a conductive flexible component.

[0018] As a preferred embodiment of the above-mentioned battery pack testing device, the positive electrode connector is a conductive rigid component, the positive electrode parallel section of the positive electrode connector is parallel to the second direction, and the positive electrode pin is sleeved on the positive electrode parallel section.

[0019] And / or, the aforementioned negative electrode connector is a conductive rigid component, the negative electrode parallel section of the aforementioned negative electrode connector is parallel to the aforementioned second direction, and the aforementioned negative electrode pin is sleeved on the aforementioned negative electrode parallel section.

[0020] As a preferred embodiment of the aforementioned battery pack testing device, the aforementioned slide groove includes a positive electrode sliding section and a negative electrode sliding section, wherein the positive electrode sliding section and the aforementioned negative electrode sliding section are not connected to each other, and the positive electrode pin is slidably disposed in the aforementioned positive electrode sliding section and the aforementioned negative electrode pin is slidably disposed in the aforementioned negative electrode sliding section.

[0021] As a preferred embodiment of the aforementioned battery pack detection device, the aforementioned information feedback element is a display unit and / or a sound playback unit.

[0022] As a preferred embodiment of the aforementioned battery pack testing device, multiple information feedback components are provided, and these multiple information feedback components are distributed on different end faces of the aforementioned housing or on the same end face.

[0023] As a preferred embodiment of the aforementioned battery pack testing device, the housing includes an upper housing and a lower housing, which are connected by threaded fasteners.

[0024] The battery pack testing device provided by this invention has at least the following beneficial effects:

[0025] This application provides a battery pack testing device, including: a housing, a circuit board, a positive terminal, a negative terminal, and an information feedback device. The housing includes a gripping part, a display part, and a mounting part. The gripping part is used for gripping, and the mounting part has a sliding groove. The circuit board is mounted inside the housing. The positive and negative terminals are both arranged parallel to each other along a first direction and are respectively mounted in the sliding groove. At least one of the positive and negative terminals is movable relative to the housing along a second direction. The positive terminal is electrically connected to the circuit board via a positive terminal connector, and the negative terminal is electrically connected to the circuit board via a negative terminal connector. The information feedback device is mounted on the display part and electrically connected to the circuit board, used to provide feedback information about the battery cells. The first direction is perpendicular to the second direction.

[0026] The housing includes a grip, a display, and a mounting section. The mounting section, located at the bottom of the housing, is used to mount the positive and negative terminals. The grip is formed by two opposing side walls of the housing and a back plate connecting the side walls, and is used for user gripping. The display is located on the front panel and / or top of the housing, with the front panel opposite the back plate. A circuit board is mounted inside the housing. The positive terminal is used to connect to the positive terminal of the device under test (DUT), and the negative terminal is used to connect to the negative terminal of the DUT. At least one of the positive and negative terminals is movable in a second direction. The circuit board is electrically connected to the positive terminal via a positive connector and to the negative terminal via a negative connector. The circuit board obtains electrical energy from the battery cell of the DUT through the positive and negative terminals and determines the state of the battery cell. An information feedback device is electrically connected to the circuit board. The information feedback device can acquire the electrical signals transmitted by the circuit board and convert them into light signals, sound signals, or other signals that are easy for the user to receive and understand.

[0027] This design makes the battery pack testing device relatively compact, easy to carry and use. The adjustable positive and / or negative pins allow the device to be compatible with a wider range of device-under-test (DUT) models, thus broadening its applicability. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the battery pack detection device in an embodiment of the present invention. Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the battery pack detection device in an embodiment of the present invention. Figure 2 ;

[0030] Figure 3 This is a schematic diagram of the battery pack detection device (excluding the upper housing) in an embodiment of the present invention. Figure 1 ;

[0031] Figure 4 for Figure 3 A bottom view;

[0032] Figure 5 This is a schematic diagram of the battery pack detection device (excluding the upper housing) in an embodiment of the present invention. Figure 2 ;

[0033] Figure 6 for Figure 5 A bottom view;

[0034] Figure 7 This is a schematic diagram of the assembly of the battery pack detection device and the battery pack in an embodiment of the present invention.

[0035] In the picture:

[0036] 100. Battery pack testing device; 200. Battery pack;

[0037] X, first direction; Y, second direction;

[0038] 1. Housing; 11. Grip section; 12. Display section; 13. Mounting section; 131. Positive electrode sliding section; 132. Negative electrode sliding section; 133. Guide groove; 14. Abutment section; 1a. Upper housing; 1b. Lower housing; 1c. Threaded fastener;

[0039] 2. Circuit board;

[0040] 31. Positive pin; 32. Positive connector; 33. Positive slider;

[0041] 41. Negative pin; 42. Negative connector; 43. Negative slider;

[0042] 5. Feedback device; 6. Power switch. Detailed Implementation

[0043] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0047] like Figures 1 to 7As shown, this application provides a battery pack testing device 100, including: a housing 1, a circuit board 2, a positive terminal 31, a negative terminal 41, and an information feedback device 5. The housing 1 includes a gripping part 11, a display part 12, and a mounting part 13. The gripping part 11 is used for gripping, and the mounting part 13 has a sliding groove. The circuit board 2 is mounted inside the housing 1. The positive terminal 31 and the negative terminal 41 are both arranged parallel to a first direction X and are respectively mounted in the sliding groove. At least one of the positive terminal 31 and the negative terminal 41 can move relative to the housing 1 along a second direction Y. The positive terminal 31 is electrically connected to the circuit board 2 via a positive terminal connector 32, and the negative terminal 41 is also electrically connected to the circuit board 2 via a negative terminal connector 42. The information feedback device 5 is mounted on the display part 12 and electrically connected to the circuit board 2, used to provide feedback information about the battery cells. The first direction X is perpendicular to the second direction Y.

[0048] For example, the housing 1 includes a gripping part 11, a display part 12, and a mounting part 13. The mounting part 13 is located at the bottom of the housing 1 and is used to mount the positive terminal 31 and the negative terminal 41. The gripping part 11 is formed by combining opposite side walls of the housing 1 and a back plate connecting the side walls. The gripping part 11 is used for user gripping. The display part 12 is disposed on the front panel and / or top of the housing 1, with the front panel and the back plate opposite each other. The circuit board 2 is mounted inside the housing 1. The positive terminal 31 is used to connect to the positive terminal of the device under test (DUT), and the negative terminal 41 is used to connect to the negative terminal of the DUT. At least one of the positive terminal 31 and the negative terminal 41 is movable in the second direction Y. The circuit board 2 is electrically connected to the positive terminal 31 through the positive terminal connector 32 and to the negative terminal 41 through the negative terminal connector 42. The circuit board 2 obtains electrical energy from the battery cell of the DUT through the positive terminal 31 and the negative terminal 41 and determines the state of the battery cell. The information feedback component 5 is electrically connected to the circuit board 2. The information feedback component 5 can acquire the electrical signals transmitted by the circuit board 2 and convert them into light signals, sound signals, and other signals that are easy for users to receive and understand.

[0049] This design makes the battery pack testing device 100 relatively compact, easy to carry and use. The adjustable design of the positive pin 31 and / or negative pin 41 allows the battery pack testing device 100 to be compatible with a wider range of device-under-test (DUT) models, thus broadening its applicability.

[0050] In one embodiment, one of the positive terminal pin 31 and the negative terminal pin 41 is fixedly installed with the housing 1, while the other can slide relative to the housing 1 along the second direction Y. In this way, the distance between the positive terminal pin 31 and the negative terminal pin 41 in the second direction Y can be adjusted.

[0051] In another embodiment, the positive terminal 31 and the negative terminal 41 are relatively fixed and can move together relative to the housing 1 along the second direction Y. In this way, although the distance between the positive terminal 31 and the negative terminal 41 in the second direction Y cannot be adjusted, the relative position of the two terminals and the housing 1 can be changed, and the structure of the device under test can be adjusted to avoid the structure.

[0052] In another preferred embodiment, both the positive terminal 31 and the negative terminal 41 are capable of sliding relative to the housing 1 along the second direction Y, and the positive terminal 31 and the negative terminal 41 can move closer to each other and further away from each other in the second direction Y. Thus, the positive terminal 31 and the negative terminal 41 are relatively independent and can slide relative to the housing 1 along the second direction Y, which allows adjustment of the distance between the positive terminal 31 and the negative terminal 41 in the second direction Y, and also allows for changing their relative positions with respect to the housing 1.

[0053] It should be noted that the battery pack testing device 100 also includes an energy storage module. During the communication process with the battery pack 200, the battery pack testing device 100 samples and compares the tested component by applying voltage and different currents multiple times through the energy storage module, and finally calculates information such as the capacity, voltage, internal resistance, service life, and remaining capacity of the battery pack 200.

[0054] Optionally, the inner wall of the slide groove is provided with a guide groove 133, which includes two limiting surfaces arranged opposite to each other in the first direction X; the positive electrode plug 31 is fixedly provided with a positive electrode slider 33, which is slidably inserted into the guide groove 133 and sandwiched between the two limiting surfaces; and / or, the negative electrode plug 41 is fixedly provided with a negative electrode slider 43, which is slidably inserted into the guide groove 133 and sandwiched between the two limiting surfaces.

[0055] With this configuration, the guide groove 133 can regulate the movement trajectory of the positive terminal 31 relative to the housing 1 along the second direction Y. And / or, it can regulate the movement trajectory of the negative terminal 41 relative to the housing 1 along the second direction Y.

[0056] Optionally, the positive slider 33 and / or the negative slider 43 are insulating components.

[0057] In this way, the positive pin 31 and the negative pin 41 are connected to the housing 1 through an insulating component, making it difficult for the housing 1 to be energized from the positive pin 31 or the negative pin 41, thus avoiding short circuits and ensuring safe use.

[0058] Optionally, the positive electrode connector 32 is a conductive flexible component, and / or the negative electrode connector 42 is a conductive flexible component.

[0059] For example, the positive electrode connector 32 is a wire harness, and the conductive flexible member is able to move the positive electrode pin 31 relative to the housing 1 in the second direction Y without restricting its movement, while maintaining the electrical connection between the positive electrode pin 31 and the circuit board 2. And / or, the negative electrode connector 42 is a wire harness, and the conductive flexible member is able to move the negative electrode pin 41 relative to the housing 1 in the second direction Y without restricting its movement, while maintaining the electrical connection between the negative electrode pin 41 and the circuit board 2.

[0060] Optionally, the positive electrode connector 32 is a conductive rigid component, and the positive electrode connector 32 is provided with a positive electrode parallel section parallel to the second direction Y, and the positive electrode pin 31 is sleeved on the positive electrode parallel section; and / or, the negative electrode connector 42 is a conductive rigid component, and the negative electrode connector 42 is provided with a negative electrode parallel section parallel to the second direction Y, and the negative electrode pin 41 is sleeved on the negative electrode parallel section.

[0061] With this configuration, the positive connector 32 can support the positive plug 31, restrict the movement of the positive plug 31 in directions other than the second direction Y, and also serve as a guide to regulate the movement trajectory of the positive plug 31 along the second direction Y. Similarly, the negative connector 42 can support the negative plug 41, restrict the movement of the negative plug 41 in directions other than the second direction Y, and also serve as a guide to regulate the movement trajectory of the negative plug 41 along the second direction Y.

[0062] Optionally, the slide includes a positive electrode sliding section 131 and a negative electrode sliding section 132. The positive electrode sliding section 131 and the negative electrode sliding section 132 are not connected to each other. The positive electrode plug 31 is slidably disposed in the positive electrode sliding section 131 and the negative electrode plug 41 is slidably disposed in the negative electrode sliding section 132.

[0063] For example, a separator is provided in the middle of the slide groove, which divides the slide groove into a positive electrode sliding section 131 and a negative electrode sliding section 132. The length direction of both the positive electrode sliding section 131 and the negative electrode sliding section 132 extends along the second direction Y. The positive electrode pin 31 is slidably disposed in the positive electrode sliding section 131, and the negative electrode pin 41 is inserted in the negative electrode sliding section 132.

[0064] Furthermore, the isolator is fixedly connected to the opposite side walls of the slide. The isolator is an insulating component. Since the positive terminal 31 and the negative terminal 41 are located on opposite sides of the isolator, the positive terminal 31 and the negative terminal 41 can never make direct contact, thus avoiding short circuit.

[0065] In other embodiments, the positive electrode sliding section 131 and the negative electrode sliding section 132 are arranged in parallel.

[0066] Optionally, the information feedback element 5 may be a display unit and / or a sound playback unit.

[0067] For example, the information feedback unit 5 is a display unit that can emit light signals to provide feedback on the status of the battery cell in the device under test. The information feedback unit 5 can also be a sound playback unit that can emit sound signals to provide feedback on the status of the battery cell in the device under test.

[0068] Optionally, multiple information feedback elements 5 are provided, and the multiple information feedback elements 5 are distributed on different end faces of the housing 1 or on the same end face.

[0069] For example, the housing 1 includes a peripheral sidewall and a top wall, and multiple information feedback elements 5 are distributed on the peripheral sidewall and the top wall, making it easier for users to obtain information about the battery cell.

[0070] Optionally, the housing 1 includes an upper housing 1a and a lower housing 1b, which are connected by a threaded fastener 1c.

[0071] For example, the upper housing 1a and the lower housing 1b are connected by multiple threaded fasteners 1c. The multiple threaded fasteners 1c are arranged and installed sequentially around the edges of the upper housing 1a and the lower housing 1b. In this way, the use of threaded fasteners 1c is not only convenient for disassembly and assembly, but also has a self-locking characteristic, which improves the connection stability between the upper housing 1a and the lower housing 1b.

[0072] Furthermore, the display part 12 is formed on the upper housing 1a. The upper housing 1a has an internally threaded post protruding on the side facing the lower housing 1b. The lower housing 1b has a countersunk hole on the side facing away from the upper housing 1a. The countersunk hole corresponds to the internally threaded post. The nut part of the threaded fastener 1c is located in the countersunk hole, and the screw part of the threaded fastener 1c is threadedly connected to the internally threaded post.

[0073] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A battery pack detection apparatus characterized by comprising: The utility model relates to a battery information feedback device, including: A shell (1) including holding part (11), display part (12) and installation part (13), the holding part (11) is used to hold, the installation part (13) is set up with the slide groove; Circuit board (2) is installed in the shell (1); Positive pole pin (31) and negative pole pin (41), the positive pole pin (31) with the negative pole pin (41) are all along the first direction (X) parallel arrangement, are installed in the slide groove respectively, and at least one of the positive pole pin (31) with the negative pole pin (41) can be moved relative to the shell (1) along the second direction (Y), the positive pole pin (31) is electrically connected with the circuit board (2) through positive pole connecting piece (32), the negative pole pin (41) is electrically connected with the circuit board (2) through negative pole connecting piece (42); Information feedback part (5) is installed in the display part (12), and the information feedback part (5) is electrically connected with the circuit board (2) and is used to feedback the information of battery core; The first direction (X) is perpendicular to the second direction (Y).

2. The battery pack detection apparatus according to claim 1, characterized by, The positive pole pin (31) and the negative pole pin (41) can slide relative to the shell (1) along the second direction (Y), and the positive pole pin (31) and the negative pole pin (41) can approach and move away from each other along the second direction (Y).

3. The battery pack detection apparatus according to claim 1, characterized by, The inner side wall of the slide groove is provided with a guide groove (133), and the guide groove (133) includes two limit surfaces arranged opposite to each other in the first direction (X). The positive pole pin (31) is fixedly provided with a positive pole sliding block (33), and the positive pole sliding block (33) is slidingly inserted into the guide groove (133) and clamped between the two limit surfaces. And / or, the negative pole pin (41) is fixedly provided with a negative pole sliding block (43), and the negative pole sliding block (43) is slidingly inserted into the guide groove (133) and clamped between the two limit surfaces.

4. The battery pack detection apparatus according to claim 3, characterized by The positive pole sliding block (33) and / or the negative pole sliding block (43) are insulating parts.

5. The battery pack detection apparatus according to claim 1, characterized by, The positive pole connecting piece (32) is a conductive flexible part, and / or the negative pole connecting piece (42) is a conductive flexible part.

6. The battery pack detection apparatus according to claim 1, characterized by The positive pole connecting piece (32) is a conductive rigid part, and the positive pole parallel section of the positive pole connecting piece (32) is parallel to the second direction (Y), and the positive pole pin (31) is sleeved on the positive pole parallel section. And / or, the negative pole connecting piece (42) is a conductive rigid part, and the negative pole parallel section of the negative pole connecting piece (42) is parallel to the second direction (Y), and the negative pole pin (41) is sleeved on the negative pole parallel section.

7. The battery pack detection apparatus according to claim 1, characterized by The slide groove includes a positive pole sliding section (131) and a negative pole sliding section (132), the positive pole sliding section (131) and the negative pole sliding section (132) are not communicated with each other, the positive pole pin (31) is slidingly arranged in the positive pole sliding section (131), and the negative pole pin (41) is slidingly arranged in the negative pole sliding section (132).

8. The battery pack detection apparatus according to claim 1, characterized by, The information feedback part (5) is a display unit and / or a sound playing unit.

9. The battery pack detection apparatus of claim 1, wherein The information feedback pieces (5) are provided in plurality, and the plurality of information feedback pieces (5) are distributed on different end faces of the shell (1) or on the same end face.

10. The battery pack detection apparatus of claim 1, wherein The shell (1) comprises an upper shell (1a) and a lower shell (1b), and the upper shell (1a) and the lower shell (1b) are connected by a threaded fastener (1c).

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