Power battery module detection device and mechanism

Abstract

The present application relates to a power battery module detection device and mechanism. The power battery module detection device includes a fixing member, a positioning member arranged on the fixing member, and a guide mechanism; the guide mechanism includes a sliding member, on which a first electrical connector is arranged, and the first electrical connector is used to be electrically connected to a second electrical connector on the battery module; wherein the positioning member is used to cooperate with the positioning portion of the power battery module to limit the fixing member to the power battery module along the first direction and the second direction; the sliding member is slidably assembled on the fixing member along a third direction, so as to make the first electrical connector contact or move away from the second electrical connector along the third direction with the sliding member. The solution provided by the present application can achieve more precise alignment and connection with the low-voltage connector of the power battery module, thereby improving the detection efficiency.

Description

Technical Field

[0001] The present application relates to the field of new energy technology, and in particular to a power battery module detection device and mechanism. Background Art

[0002] In new energy vehicles, power battery modules are generally used as energy units, and several power battery modules are connected in series and parallel to provide energy for the entire vehicle.

[0003] In the related art, in order to ensure the stable performance of the power battery module, it is necessary to detect the voltage and temperature of the battery cells in the power battery module after the power battery module is assembled. The solution of the related art is generally to directly insert the detection component into the low-voltage connector of the power battery module for detection. Since it is difficult to achieve precise positioning of the detection component and the low-voltage connector, it is easy to cause damage to the low-voltage connector, and then easily cause damage to the entire power battery module. Summary of the invention

[0004] In order to solve or partially solve the problems existing in the related art, the present application provides a power battery module detection device and mechanism, which can achieve more precise alignment and connection with the second electrical connector of the power battery module, thereby improving the detection efficiency.

[0005] The first aspect of the present application provides a power battery module detection device, comprising:

[0006] A fixing member, a positioning member and a guide mechanism arranged on the fixing member;

[0007] The guide mechanism comprises a sliding member, on which a first electrical connector is provided, and the first electrical connector is used to be electrically connected to a second electrical connector on the battery module;

[0008] The positioning member is used to cooperate with the positioning portion of the power battery module to limit the fixing member to the power battery module along the first direction and the second direction;

[0009] The sliding member is slidably assembled on the fixing member along the third direction, so as to make the first electrical connector contact with or move away from the second electrical connector along the third direction along with the sliding member.

[0010] In one implementation, the positioning member is configured as a plug-in connector;

[0011] The positioning portion includes a positioning hole provided on the power battery module adjacent to the second electrical connector, and the positioning member is plug-fitted into the positioning hole;

[0012] Wherein, the plugging direction between the plug-in component and the positioning hole is along the second direction.

[0013] In one implementation, a support portion is provided on the battery module, and the positioning hole is opened in the support portion;

[0014] The positioning member is arranged at the bottom of the fixing member, and when the positioning member is inserted into the positioning hole, the fixing member is supported on the supporting portion.

[0015] In one implementation manner, the guide mechanism includes a slide rail disposed on the fixing member along the third direction, and the sliding member is mounted on the slide rail and can slide along the slide rail; or,

[0016] The guide mechanism comprises a slide rail arranged on the fixing member along the third direction, a slide block is arranged on the slide rail, and the slide member is mounted on the slide block.

[0017] In one implementation, it further includes a limiting structure for limiting the sliding member along the third direction;

[0018] The limiting structure comprises a limiting block provided on a side of the slide rail close to the second electrical connector, the limiting block being used to limit a running distance of the first electrical connector toward the second electrical connector; and / or

[0019] The limiting structure includes a non-return mechanism provided on a side of the slide rail away from the second electrical connector, and the non-return mechanism is used to limit a running distance of the first electrical connector in a direction away from the second electrical connector.

[0020] In one implementation, the non-return mechanism includes a blocking member hinged to one side of the slide rail;

[0021] When the blocking member is in the first state, it can limit the running distance of the sliding member in the direction away from the second electrical connector;

[0022] When the blocking member is in the second state, the movement limit of the sliding member in the direction away from the second electrical connector can be released.

[0023] In one implementation, the second electrical connector is disposed corresponding to the middle portion of the support portion;

[0024] There are at least two positioning holes, and at least two positioning holes are arranged on both sides of the second electrical connector.

[0025] In one implementation, the power battery module includes an end plate;

[0026] The support portion includes a support platform disposed on the end plate, and the positioning hole is configured as an end plate hole on the support platform.

[0027] In one implementation, the first electrical connector includes a detection probe that is in electrical contact with a pin of the second electrical connector;

[0028] The detection probe is telescopically arranged along the third direction.

[0029] A second aspect of the present application provides a power battery module detection mechanism, comprising:

[0030] Power battery modules; and

[0031] The power battery module detection device as described above is assembled on the power battery module.

[0032] The technical solution provided by this application may have the following beneficial effects:

[0033] The power battery module detection device provided in the embodiment of the present application includes a fixing member, a positioning member arranged on the fixing member and a guiding mechanism; the guiding mechanism includes a sliding member, on which a first electrical connector is provided, and the first electrical connector is used to electrically contact the second electrical connector of the battery module; wherein the positioning member is used to limit the positioning of the positioning portion of the power battery module, and is used to position the fixing member in the power battery module along the first direction and the second direction; the sliding member is slidably assembled on the fixing member along the third direction, and is used to make the first electrical connector contact or move away from the second electrical connector along the third direction. After such arrangement, the first electrical connector can move along the three directions with the sliding member, and can be limited in the first direction and the second direction respectively, so that the first electrical connector and the second electrical connector of the power battery module can achieve more accurate alignment and connection, which can avoid the phenomenon in the related art that when the detection component is directly inserted into the second electrical connector of the power battery module for detection, the second electrical connector is damaged due to inaccurate alignment.

[0034] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and other objects, features and advantages of the present application will become more apparent by describing in more detail exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0036] Figure 1 is a structural schematic diagram of a power battery module detection device shown in an embodiment of the present application;

[0037] Figure 2 yes Figure 1 A top view of a power battery module detection device;

[0038] Figure 3 yes Figure 1 A side view of a power battery module detection device;

[0039] Figure 4 yes Figure 1 A schematic diagram of the bottom structure of the power battery module detection device;

[0040] Figure 5 is a structural schematic diagram of a power battery module detection mechanism shown in an embodiment of the present application;

[0041] Figure 6 It is a schematic diagram of the assembly of the power battery module detection mechanism shown in the embodiment of the present application.

[0042] Figure numerals: power battery module detection device 10; fixing member 11; sliding member 12; positioning member 13; slide rail 14; blocking member 15; positioning block 16; avoidance area 17; connecting block 121; first electrical connecting member 122; sliding block 141; rotating part 151; power battery module 20; second electrical connecting member 21; supporting part 22; positioning hole 221. DETAILED DESCRIPTION

[0043] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0044] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0045] In the description of the present application, 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 drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] 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, or 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 this application can be understood according to specific circumstances.

[0047] In the related art, in order to ensure the stable performance of the power battery module, it is necessary to detect the voltage and temperature of the battery cells in the power battery module after the power battery module is assembled. The solution of the related art is generally to directly insert the detection component into the second electrical connector of the power battery module for detection. Since it is difficult to achieve precise positioning of the detection component and the second electrical connector, it is easy to cause damage to the second electrical connector, and then easily cause damage to the entire power battery module.

[0048] In view of the above problems, the embodiments of the present application provide a power battery module detection device and mechanism, which can achieve more accurate alignment and connection with the second electrical connector of the power battery module, thereby improving the detection efficiency.

[0049] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0050] Please also see Figure 1-Figure 5 The power battery module detection device 10 provided in the embodiment of the present application includes a fixing member 11, a positioning member 13 provided on the fixing member 11 and a guide mechanism; the guide mechanism includes a sliding member 12, on which a first electrical connector 122 is provided, and the first electrical connector 122 is used to be electrically connected to the second electrical connector 21 on the power battery module 20; wherein the positioning member 13 is used to cooperate with the positioning portion of the power battery module 20 to limit the fixing member 11 to the power battery module along the first direction Y and the second direction Z; the sliding member 12 is slidably assembled on the fixing member 11 along the third direction X, so as to make the first electrical connector 122 contact or move away from the second electrical connector 21 along the third direction X with the sliding member 12.

[0051] After such arrangement, the first electrical connector 122 can move along three directions with the sliding member, and at the same time be limited in the first direction Y and the second direction Z respectively, so that the first electrical connector 122 and the second electrical connector 21 of the power battery module 20 can achieve more precise alignment and connection, and can avoid the phenomenon in the related technology that when the detection component is manually inserted into the second electrical connector 21 of the power battery module 20 for detection, the second electrical connector 21 is damaged due to inaccurate alignment.

[0052] See also Figure 1 In this embodiment, the first direction Y may be the width direction of the power battery module 20, the second direction Z may be the height direction of the power battery module 20, and the third direction X may be the length direction of the power battery module 20, wherein the connection direction of the first electrical connector 122 and the second electrical connector 21 is along the third direction.

[0053] In this embodiment, the second electrical connector 21 can be a low-voltage connector on the power battery module 20, which is electrically connected to the battery cells in the power battery module 20 to collect voltage information and NTC (Negative Temperature Coefficient) temperature information of the battery cells in the power battery module 20.

[0054] The detection component in the related technology is generally provided with a socket that is plugged into and matched with the low-voltage connector of the power battery module. The socket cooperates with the pin of the low-voltage connector. Since the position and angle of the socket are difficult to control, it is easy to cause the pin to be skewed or retreated, thereby causing damage to the low-voltage connector or poor contact, and further causing damage to the power battery module.

[0055] The solution provided in this embodiment, due to the limiting cooperation between the positioning member 13 and the positioning part of the power battery module 20, can limit the fixing member 11 to the power battery module 20 along the first direction Y and the second direction Z, and the first electrical connector 122 can slide along the third direction X with the sliding member 12. Therefore, when the first electrical connector 122 contacts the pin of the low-voltage connector, the connector pin will not be subjected to lateral force, and the position and angle are effectively controlled. Therefore, the problem of skewing of the connector pin will not be caused.

[0056] In some embodiments, the first electrical connector 122 includes a detection probe that is in electrical contact with the pin of the second electrical connector 21; the detection probe is retractable along the third direction X, so that the detection probe and the pin of the low-voltage connector are in elastic contact or friction contact, which not only ensures the stability of the electrical contact, but also makes the force on the pin of the low-voltage connector more uniform, and does not cause the problem of pin withdrawal.

[0057] In some embodiments, the first electrical connector 122 includes an insulating member disposed between a plurality of detection probes. Such a configuration can avoid the problem of short circuit of cells in the power battery module 20 that may occur during the detection process.

[0058] Since the detection component in the related technology has no guide support when plugging in, the plugging and unplugging angle is difficult to control. The plugging and unplugging process may cause the connection between the low-voltage connector of the power battery module and the FPC (Flexible Printed Circuit) sampling line to loosen, resulting in poor contact of the low-voltage connector and / or broken circuit of the FPC sampling line.

[0059] In this embodiment, since the detection probe and the pin of the low-voltage connector are in elastic contact or friction contact, the contact area between the detection probe and the connector pin is larger, for example, the contact area is greater than 90% of the detection probe, ensuring that each pin can be electrically contacted with the corresponding detection probe, thereby improving the stability of the electrical connection and thereby improving the detection pass rate.

[0060] In addition, since the detection probe and the pin are in elastic contact or friction contact, the problem of aluminum chips remaining in the socket of the detection component in the related art is avoided, and the electrical connection stability of the PFC sampling circuit is improved.

[0061] In this embodiment, a conductive contact layer is provided on the surface of the detection probe. The conductive contact layer may be, for example, a gold-plated layer (but not limited to a gold-plated layer). The conductive contact layer can increase the conductivity and corrosion resistance of the detection probe, and can also avoid damaging the connector pins of the module's low-voltage interface.

[0062] The power battery module 20 is generally provided with an end plate, and the second electrical connector 21 is arranged on the end plate. The end plate has an end plate hole, which is arranged along an extension direction perpendicular to the connector pin of the second electrical connector 21. The end plate hole is generally used to fix the connecting component matched with the second electrical connector 21.

[0063] In this embodiment, the positioning member 13 is configured as a plug-in member; the positioning portion includes a positioning hole 221 provided on the power battery module 20 adjacent to the second electrical connector 21 , and the positioning member 13 is plug-fitted into the positioning hole 221 .

[0064] The plugging direction of the connector and the positioning hole 221 is along the second direction Z. When the positioning member 13 is inserted into the positioning hole 221, the fixing member 11 can be supported on the support portion 22, so that the fixing member 11 can be stably placed on the power battery module 20, thereby ensuring the electrical connection stability during detection.

[0065] In addition, this embodiment utilizes the original end plate structure of the power battery module 20, such as the support platform and end plate holes on the end plate, to achieve the installation and positioning of the battery module detection device without changing the structure of the power battery module 20.

[0066] Since the positioning member 13 is arranged at the bottom of the fixing member 11, when the fixing member 11 is supported on the support portion 22, the support portion 22 can limit the fixing member 11 along the second direction Z, which is also conducive to the first electrical connector 122 to be aligned with the low-voltage connector along the third direction X.

[0067] In some embodiments, the second electrical connector 21 is arranged corresponding to the middle part of the support portion 22, and at least two positioning holes 221 are provided, and at least two positioning holes 221 are arranged on both sides of the second electrical connector 21. After such arrangement, the fixing member 11 is positioned on both sides of the second electrical connector 21, further ensuring the electrical connection stability between the first electrical connector 122 and the second electrical connector 21.

[0068] In some embodiments, the guiding mechanism includes a slide rail 14 arranged on the fixed member 11 along a third direction X, and the sliding member 12 is installed on the slide rail 14 and can slide along the slide rail 14; or, the guiding mechanism includes a slide rail 14 arranged on the fixed member 11 along a third direction X, and a slider 141 is provided on the slide rail 14, and the sliding member 12 is installed on the slider 141.

[0069] In one implementation, the fixing member 11 is a plate-like structure, and two slide rails 14 can be provided. The two slide rails 14 are arranged on the fixing member 11 at intervals along the second direction Z. Slide blocks 141 are respectively installed on the two slide rails 14. The sliding member 12 is straddled on the two slide blocks 141 and can slide with the two slide blocks 141.

[0070] In some embodiments, the first electrical connector 122 is connected to the sliding member 12 via a connecting block 121, and the connecting block 121 is disposed at the bottom of the sliding member 12. When the fixing member 11 is supported on the supporting portion 22, the first electrical connector 122 can be positioned relative to the second electrical connector 21 along the third direction X.

[0071] In some embodiments, a hollow avoidance area 17 may be provided in the middle of the fixing member 11 , and when the sliding member 12 moves, the first electrical connection member 122 moves in the avoidance area 17 .

[0072] In some implementations, the fixing member 11 may be formed by connecting two fixing plates, and the two fixing plates are spaced apart to form a hollow avoidance area 17 in the middle.

[0073] In this embodiment, the sliding member 12 can slide in the third direction X along the sliding rail 14, so that the first electrical connector 122 can move in a direction away from or close to the second electrical connector 21, thereby achieving contact or separation with the second electrical connector 21. When the detection probe contacts the pin, the direction and angle can be controlled to avoid damage to the pin.

[0074] In some embodiments, a limiting structure is further included for limiting the sliding member 12 along the third direction X; the limiting structure includes a limiting block arranged on the side of the slide rail 14 close to the second electrical connector 21, and the limiting block is used to limit the running distance of the first electrical connector 122 toward the second electrical connector 21; and / or the limiting structure includes a check mechanism arranged on the side of the slide rail 14 away from the second electrical connector 21, and the check mechanism is used to limit the running distance of the first electrical connector 122 in a direction away from the second electrical connector 21.

[0075] In some embodiments, the non-return mechanism includes a blocking member 15 hinged to one side of the slide rail 14, and the blocking member 15 is hinged to one side of the fixed member 11 through a rotating portion 151; when the blocking member 15 is flipped to be in a first state, it can limit the running distance of the sliding member 12 in the direction away from the second electrical connector 21; when the blocking member 15 is flipped to be in a second state, it can release the running limit of the sliding member 12 in the direction away from the second electrical connector 21.

[0076] The first state can be a state where the blocking member 15 is flipped to be close to the slide rail 14 and abuts against the sliding member 12. In the first state, the sliding member 12 can be prevented from moving away from the second electrical connector 21, ensuring that the first electrical connector 122 and the second electrical connector 21 can be in stable contact.

[0077] The second state can be a state in which the blocking member 15 is flipped away from the slide rail 14 and separated from the sliding member 12. In the second state, the sliding member 12 is not limited by the blocking member 15 and can move in a direction away from the second electrical connector 21, thereby separating the first electrical connector 122 from the second electrical connector 21.

[0078] During detection, first insert the positioning piece 13 into the positioning hole 221, and then push the sliding piece 12 to move toward the second electrical connector 21 of the power battery module 20. When the sliding piece 12 abuts against the limit block, the detection probe can contact the pin of the low-voltage connector. The contact distance between the detection probe and the pin of the low-voltage connector can be controlled by the limit block, which not only ensures the stability of the electrical connection between the detection probe and the pin of the low-voltage connector, but also makes the operation more convenient.

[0079] After the detection is completed, the blocking member 15 is flipped away from the sliding member 12 so that the blocking member 15 no longer limits the sliding member 12. At this time, the sliding member 12 can be retracted to separate the detection probe from the pin of the low-voltage connector, and then the power battery module detection device can be removed. When the detection of a power battery module 20 is completed, the power battery module detection device can then be assembled on the next power battery module 20 for detection, which can conveniently realize the rapid disassembly and assembly with different power battery modules 20, thereby improving the detection efficiency.

[0080] The above describes the power battery module detection device provided in the embodiment of the present application. Accordingly, the present application also provides a power battery module detection mechanism and corresponding embodiments.

[0081] The power battery module detection mechanism of this embodiment includes a power battery module 20 ; and a power battery module detection device 10 of the above embodiment assembled on the power battery module 20 .

[0082] The power battery module detection device 10 includes a fixing member 11, a positioning member 13 arranged on the fixing member 11, and a guide mechanism; the guide mechanism includes a sliding member 12, on which a first electrical connector 122 is provided, and the first electrical connector 122 is used to be electrically connected to a second electrical connector 21 on the battery module; wherein the positioning member 13 is used to cooperate with a positioning portion of the power battery module to limit the fixing member 11 to the power battery module along a first direction Y and a second direction Z; the sliding member 12 is slidably assembled on the fixing member 11 along a third direction X, so as to make the first electrical connector 122 contact or move away from the second electrical connector 21 along the third direction X with the sliding member 12.

[0083] In the solution provided by the present embodiment, due to the limiting cooperation between the positioning member 13 and the positioning part of the power battery module, the fixing member 11 can be limited to the power battery module along the first direction Y and the second direction Z, and the first electrical connector 122 can slide along the third direction X with the sliding member 12 (the third direction X is also the contact direction between the first electrical connector 122 and the second electrical connector 21). Therefore, when the first electrical connector 122 contacts the pin of the low-voltage connector, the connector pin will not be subjected to lateral force, and the position and angle are effectively controlled. Therefore, there will be no problem of misalignment of the connector pin.

[0084] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A power battery module detection device, characterized in that: include: A fixing member, a positioning member and a guide mechanism arranged on the fixing member; The guide mechanism includes a sliding member, on which a first electrical connector is provided, the first electrical connector is used to be electrically connected to a second electrical connector on the battery module, and the first electrical connector includes a detection probe electrically contacting a pin of the second electrical connector; The positioning member is used to cooperate with the positioning portion of the power battery module to limit the fixing member to the power battery module along the first direction and the second direction; The sliding member is slidably assembled on the fixing member along the third direction, so as to make the first electrical connector contact or move away from the second electrical connector along the third direction with the sliding member; the guiding mechanism comprises a slide rail arranged on the fixing member along the third direction, the sliding member is mounted on the slide rail and can move relative to the slide rail; the first direction is the width direction of the power battery module, the second direction is the height direction of the power battery module, and the third direction is the length direction of the power battery module, wherein the detection probe is telescopically arranged along the third direction, and the contact direction between the first electrical connector and the second electrical connector is along the third direction; The positioning member is configured as a plug-in member; the positioning portion includes a positioning hole arranged on the power battery module adjacent to the second electrical connector, and the positioning member is plugged into and matched with the positioning hole; wherein the plug-in direction of the plug-in member and the positioning hole is along the second direction; a supporting member is provided on the battery module, and the positioning hole is opened in the supporting member; the positioning member is provided at the bottom of the fixing member, and when the positioning member is plugged into the positioning hole, the fixing member is supported on the supporting member.

2. The power battery module detection device according to claim 1, characterized in that: The guide mechanism comprises a slide rail arranged on the fixing member along the third direction, a slide block is arranged on the slide rail, and the slide member is mounted on the slide block.

3. The power battery module detection device according to claim 2, characterized in that: Also included is a limiting structure for limiting the position of the sliding member along the third direction; The limiting structure comprises a limiting block provided on a side of the slide rail close to the second electrical connector, the limiting block being used to limit a running distance of the first electrical connector toward the second electrical connector; and / or The limiting structure includes a non-return mechanism provided on a side of the slide rail away from the second electrical connector, and the non-return mechanism is used to limit a running distance of the first electrical connector in a direction away from the second electrical connector.

4. The power battery module detection device according to claim 3, characterized in that: The non-return mechanism comprises a blocking member hinged to one side of the slide rail; When the blocking member is in the first state, it can limit the running distance of the sliding member in the direction away from the second electrical connector; When the blocking member is in the second state, the movement limit of the sliding member in the direction away from the second electrical connector can be released.

5. The power battery module detection device according to claim 1, characterized in that: The second electrical connector is disposed corresponding to the middle portion of the support portion; There are at least two positioning holes, and at least two positioning holes are arranged on both sides of the second electrical connector.

6. The power battery module detection device according to claim 1, characterized in that: The power battery module includes an end plate; The support portion includes a support platform disposed on the end plate, and the positioning hole is configured as an end plate hole opened on the support platform.

7. A power battery module detection mechanism, characterized in that: include: Power battery module; as well as A power battery module detection device as described in any one of claims 1 to 6 assembled on the power battery module.

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