Plug, butt joint equipment and test tool

Abstract

The utility model provides a plug, butt joint equipment and test tooling relates to test technical field, including the shell and set up connecting terminal and probe on the shell, connecting terminal and probe one end is used for connecting with the test equipment through wire harness, connecting terminal and probe other end is used for connecting with the socket on the equipment on test. According to the structural design, when the connecting terminal and the probe on the shell are plugged with the socket on the equipment to be detected, the stable relative position relation between the shell and the socket can be effectively maintained; therefore, the connecting terminals and the probes on the shell can be in better contact with sockets on different to-be-detected devices during long-time plugging and unplugging work of technicians, the effect that the testing device is electrically connected with the to-be-detected devices and testing is carried out is achieved, and the technical problems existing in the prior art are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, in particular to a plug, a docking device and a testing tool. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures.

[0003] There are two types of socket interfaces on the power battery pack of new energy vehicles, namely low-voltage socket interface and high-voltage socket interface. Since the battery pack needs to be performance tested on the production line, the original plug is generally used for plugging and unplugging with the low-voltage socket interface and the high-voltage socket interface. The original plug has a complex structure, cumbersome assembly and cannot be plugged and unplugged for a long time.

[0004] Therefore, the above technical problems need to be further resolved. Utility Model Content

[0005] The purpose of the utility model is to provide a plug, a docking device and a testing tool to alleviate the technical problems in the related technology.

[0006] The present application provides a plug, comprising:

[0007] A housing and a connection terminal and a probe arranged on the housing, wherein one end of the connection terminal and the probe is used to be connected to a test device through a wiring harness, and the other end of the connection terminal and the probe is used to be plugged into a socket on a device to be tested;

[0008] The first clamping portion is arranged on the shell and is used to clamp or release the clamping portion with the second clamping portion on the socket, so that the shell and the socket maintain a relative position relationship and lock them, or separate the shell and the socket and release the locking state.

[0009] Optionally, in the aforementioned plug, the number of the connecting terminal and the number of the probe are at least one.

[0010] Optionally, in the aforementioned plug, the housing comprises:

[0011] A first shell and a second shell connected to each other, wherein the first shell and the second shell are detachably connected;

[0012] Among them, the connecting terminal passes through the first shell and the second shell in sequence, one end of the connecting terminal is exposed outside the first shell, and is used to connect to the test equipment through the wiring harness, the other end of the connecting terminal is exposed outside the second shell, and is used to be plugged into the socket on the device to be tested, the probe is arranged on the second shell, one end of the probe is used to connect to the test equipment through the wiring harness, the other end of the probe and the other end of the connecting terminal are located on the same side of the second shell, and are exposed outside the second shell, and are used to be plugged into the socket on the device to be tested.

[0013] Optionally, in the aforementioned plug, the first shell and the second shell are both rectangular bodies, the first shell has a protrusion on a first side surface facing away from the second shell, a pressing block is detachably connected to the protrusion, and the protrusion and the pressing block together form a channel for the end of the connecting terminal exposed outside the first shell to pass through;

[0014] Among them, the surface where the first shell contacts the second shell is the second side surface, the first side surface is opposite to the second side surface, the surface of the first shell opposite to the bearing surface is the third side surface, the side of the first shell away from the third side surface is the fourth side surface, the two opposite surfaces located between the first side surface, the second side surface, the third side surface and the fourth side surface are the fifth side surface and the sixth side surface, and the bearing surface is the ground.

[0015] Optionally, in the aforementioned plug, the first clamping portion comprises:

[0016] Two connecting rods, one end of one connecting rod can be rotatably connected to the fifth side surface of the first shell, and one end of the other connecting rod can be rotatably connected to the sixth side surface of the first shell, and the other ends of the connecting rods are hook-shaped and used to be engaged with or released from the second engaging portion on the socket;

[0017] A toggle rod, the toggle rod is in a U-shape, the outer side of the toggle rod is opposite to the bearing surface, one end of the toggle rod is connected to one of the connecting rods, and the other end of the toggle rod is connected to another connecting rod;

[0018] an elastic portion, one end of which is connected to the inner side of the toggle rod, and the other end of which is connected to the third side surface;

[0019] Among them, the elastic part is used to provide a rebound force for the toggle rod, and the toggle rod drives the two connecting rods to rotate back and forth along the first direction relative to the first shell, so that the other ends of the two connecting rods with hooks are engaged or released with the second engaging part on the socket, and the first direction is the direction from the third side to the fourth side.

[0020] Optionally, in the aforementioned plug, the fifth side surface and the surface of the second shell on the same side as the fifth side surface are jointly provided with a first receiving groove, the first receiving groove being used to receive and allow one end of the connecting rod and the toggle rod to reciprocate relative to the first shell along the first direction;

[0021] The sixth side surface and the surface of the second shell on the same side as the sixth side surface are jointly provided with a second accommodating groove, and the second accommodating groove is used to accommodate and allow the other end of the other connecting rod and the toggle rod to reciprocate relative to the first shell along the first direction.

[0022] Optionally, in the aforementioned plug, the protrusion and the first shell are an integral structure, and the toggle rod and the two connecting rods are an integral structure.

[0023] Optionally, in the aforementioned plug, the first shell and the second shell are connected by fastening bolts, and the protrusion and the clamping block are connected by clamping bolts.

[0024] On the other hand, the present application provides a docking device, including:

[0025] A socket and a second clamping portion arranged on the socket, wherein the second clamping portion is used to adapt to and clamp or release the first clamping portion on the shell of the plug, so that the shell and the socket maintain a relative position relationship and lock them, or separate the shell and the socket and release the locking state.

[0026] On the other hand, the present application provides a testing tool, comprising:

[0027] Plugs and docking equipment;

[0028] The plug comprises:

[0029] A housing and a connection terminal and a probe arranged on the housing, wherein one end of the connection terminal and the probe is used to be connected to a test device through a wiring harness, and the other end of the connection terminal and the probe is used to be plugged into a socket on a device to be tested;

[0030] A first clamping portion, disposed on the housing;

[0031] The docking device comprises:

[0032] A socket and a second clamping portion disposed on the socket;

[0033] The connecting terminal and the probe are plugged into or unplugged from the socket through the shell, and the first clamping portion is clamped into or unclamped from the second clamping portion, so that the shell and the socket maintain a relative position relationship and are locked or the shell and the socket are separated and released from the locked state.

[0034] By means of the above technical solution, the plug, docking device and test tooling of the present application have at least the following advantages:

[0035] The plug, docking device and test tooling provided in the embodiments of the present application, wherein the connecting terminals and the probes are electrically connected to the test device through the wiring harness, and the test device is plugged into the socket on the device to be tested through the probes and connecting terminals on the shell, so as to achieve the effect of electrically connecting the test device to the device to be tested and performing the test, and at the same time, a first clamping portion is provided on the shell, and the first clamping portion is used to clamp or release the clamping portion with the second clamping portion on the socket, so as to maintain a stable relative position relationship between the shell and the socket and lock them, or to separate the shell and the socket and release the locking state, and this structural design can effectively improve the stability of the relative position relationship between the shell and the socket when the connecting terminals and the probes on the shell are plugged into the socket on the device to be tested, so that the connecting terminals and the probes on the shell can better contact with the sockets on different devices to be tested during long-term plugging and unplugging work, so as to achieve the effect of electrically connecting the test device to the device to be tested and performing the test, and effectively solve the technical problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0037] Figure 1 A schematic diagram of the structure of the plug and socket provided in the embodiment of the utility model;

[0038] Figure 2 A schematic diagram of the structure of the second housing of the plug provided in an embodiment of the utility model;

[0039] Figure 3 A schematic structural diagram of the first clamping portion of the plug provided in an embodiment of the utility model.

[0040] icon:

[0041] 1. Shell; 101. First shell; 102. Second shell;

[0042] 2. Connecting terminal; 3. Probe; 4. Socket; 5. First clamping portion; 501. Connecting rod; 502. Toggle rod; 503. Elastic portion;

[0043] 6. Second clamping portion; 7. Protrusion; 8. Pressing block; 9. Second side surface; 10. Fourth side surface; 11. Sixth side surface; 12. Second accommodating groove. DETAILED DESCRIPTION

[0044] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Embodiment 1

[0048] like Figure 1 - Figure 3 As shown, the plug proposed in the embodiment of the utility model comprises: a first clamping portion 5, a housing 1, and a connecting terminal 2 and a probe 3 arranged on the housing 1;

[0049] One end of the connection terminal 2 and the probe 3 is used to connect to the test equipment through a wiring harness, and the other end of the connection terminal 2 and the probe 3 is used to plug into the socket 4 on the device to be tested;

[0050] The first engaging portion 5 is disposed on the housing 1 and is used to engage with or release the engaging portion 6 on the socket 4 so that the housing 1 and the socket 4 maintain a relative position relationship and lock them or separate the housing 1 and the socket 4 and release the locking state.

[0051] Specifically, the device to be tested is a new energy vehicle power battery pack, a battery pack (PACK), and PACK refers to the interface between the ion battery and the externally powered mobile power supply to complete the charging of the mobile power supply. The connecting terminal 2 is a prior art and can be obtained through purchase. The connecting terminal 2 is used to electrically connect the auxiliary test equipment to the socket 4 on the device to be tested to test the device to be tested. The probe 3 is a prior art and can be obtained through purchase. The probe 3 is used to connect the auxiliary test equipment to the socket 4 on the device to be tested to test the device to be tested. Probe 3 is a high-voltage interlocking probe 3. The high-voltage interlocking probe 3 is used to detect the looseness of the high-voltage circuit and provide an alarm message to the vehicle controller before the high-voltage power is cut off, reserving time for the vehicle system to take countermeasures. Looseness refers to the fact that the plug and the socket 4 on the high-voltage line may not be plugged in tightly, and the high-voltage interlocking plug is shorter than the high-voltage positive and negative plugs, causing the interlocking probe 3 to disconnect first, sending a feedback signal to the battery management system (BMS) vehicle controller and prompting an alarm high-voltage disconnection. In addition, the high-voltage interlock probe 3 detects the circuit before the vehicle is powered on. If the circuit is detected to be incomplete, the system cannot be powered on, avoiding accidents caused by virtual connection and other problems; preventing safety accidents caused by human error. During the operation of the high-voltage system, if there is no high-voltage interlock design, when the high-voltage connection point is manually disconnected, at the moment of disconnection, the entire circuit voltage will be added to both ends of the breakpoint, and the voltage will break through the air and arc between the two devices. Although the time is short, the energy is very high, which may cause damage to personnel and equipment around the breakpoint.

[0052] The shell 1 is used to support and fix the connecting terminal 2 and the probe 3. The shell 1 and the connecting terminal 2 as well as the shell 1 and the probe 3 can be connected directly or indirectly through their devices. The connection method can be a detachable connection or a fixed connection. The technician can choose a suitable connection method according to actual needs, that is, the connection methods are all conventional connection methods, which will not be elaborated in this application.

[0053] The connecting terminal 2 and the probe 3 are electrically connected to the test equipment through a wiring harness, and the test equipment is plugged into the socket 4 on the device to be tested through the probe 3 and the connecting terminal 2 to achieve the effect of electrically connecting the test equipment to the device to be tested and performing testing.

[0054] It should be noted that the socket 4 on the device to be tested is adapted to the connecting terminal 2 and the probe 3 on the shell 1, that is, the socket 4 of the device to be tested is provided with contacts for inserting the connecting terminal 2 and the probe 3, so that the device to be tested is electrically connected to the test device, making it convenient for the test device to test the device to be tested.

[0055] Since the connecting terminals 2 and the probes 3 on the shell 1 have friction when they are plugged into the socket 4 on the device to be tested, the shell 1 and the socket 4 on the device to be tested can maintain a relative position relationship when they are plugged in. However, when technicians test multiple battery packs (devices to be tested) on the production line, they need to perform long-term plugging and unplugging work. Therefore, in order to make the connecting terminals 2 and the probes 3 on the shell 1 better contact with the socket 4 on the device to be tested, that is, long-term plugging and unplugging work, the present application provides a first clamping portion 5 on the shell 1, and the first clamping portion 5 is used to clamp or release the clamping portion with the second clamping portion 6 on the socket 4, so that the shell 1 and the socket 4 maintain a stable relative position relationship and lock or separate the shell 1 from the socket 4 and release the locking state. This structural design can effectively improve the connection terminals 2 and the probes 3 on the shell 1 When the socket 4 on the device to be tested is plugged in, the shell 1 and the socket 4 maintain a stable relative position relationship, so that the connecting terminals 2 and the probes 3 on the shell 1 are in good contact with the socket 4 on the device to be tested, and the effect of electrically connecting the test equipment to the device to be tested is achieved.

[0056] The plug provided by the embodiment of the utility model has a connecting terminal 2 and a probe 3 electrically connected to a test device through a wiring harness. The test device is plugged into a socket 4 on a device to be tested through the probe 3 and the connecting terminal 2 on the shell 1, so as to achieve the effect of electrically connecting the test device to the device to be tested and performing a test. At the same time, a first clamping portion 5 is provided on the shell 1, and the first clamping portion 5 is used to clamp or release the clamping portion 6 on the socket 4, so that a stable relative position relationship is maintained between the shell 1 and the socket 4 and locked, or the shell 1 is separated from the socket 4 and the locked state is released. This structural design can effectively improve the stability of the relative position relationship between the shell 1 and the socket 4 when the connecting terminal 2 and the probe 3 on the shell 1 are plugged into the socket 4 on the device to be tested, so that the connecting terminal 2 and the probe 3 on the shell 1 can better contact with the socket 4 on different devices to be tested during long-term plugging and unplugging work, so as to achieve the effect of electrically connecting the test device to the device to be tested and performing a test, and effectively solve the technical problems existing in the prior art.

[0057] like Figure 1 - Figure 2 As shown, in a specific implementation, the number of the connecting terminal 2 and the number of the probe 3 are at least one.

[0058] Specifically, the technicians can select a suitable number of connection terminals 2 and probes 3 according to actual needs to achieve the effect of electrically connecting the test device to the device to be tested and performing the test.

[0059] like Figure 1 - Figure 2 As shown, in a specific implementation, the shell 1 includes: a first shell 101 and a second shell 102 connected to each other, and the first shell 101 and the second shell 102 are detachably connected; wherein the connecting terminal 2 passes through the first shell 101 and the second shell 102 in sequence, one end of the connecting terminal 2 is exposed outside the first shell 101, and is used to be connected to the test equipment through a wiring harness, and the other end of the connecting terminal 2 is exposed outside the second shell 102, and is used to be plugged into the socket 4 on the device to be tested, and the probe 3 is arranged on the second shell 102, and one end of the probe 3 is used to be connected to the test equipment through a wiring harness, and the other end of the probe 3 and the other end of the connecting terminal 2 are located on the same side of the second shell 102, and are exposed outside the second shell 102, and are used to be plugged into the socket 4 on the device to be tested.

[0060] Specifically, this structural design can facilitate later inspection and maintenance, and also make it easy for technicians to replace damaged connection terminals 2 and / or probes 3.

[0061] like Figure 1 - Figure 2 As shown, in a specific implementation, the first shell 101 and the second shell 102 are both rectangular bodies, and the first shell 101 has a protrusion 7 on the first side facing away from the second shell 102, and a clamping block 8 is detachably connected to the protrusion 7, and the protrusion 7 and the clamping block 8 together form a channel for the end of the connecting terminal 2 exposed outside the first shell 101 to penetrate; wherein, the surface where the first shell 101 contacts the second shell 102 is the second side 9, the first side is opposite to the second side 9, the surface of the first shell 101 opposite to the bearing surface is the third side, and the surface of the first shell 101 facing away from the third side is the fourth side 10, and the two opposite surfaces between the first side, the second side 9, the third side and the fourth side 10 are the fifth side and the sixth side 11, and the bearing surface is the ground.

[0062] Specifically, the probe 3 and the second housing 102 are connected in a detachable manner. This structural design makes it easy for technicians to replace a damaged probe 3.

[0063] One end of the connecting terminal 2 is exposed to the outside of the first shell 101 and is located on the first side surface. The other end of the connecting terminal 2 passes through the first shell 101 and the second shell 102 in sequence and is exposed to the outside of the second shell 102, and is used to be plugged into the socket 4 on the device to be detected, wherein the protrusion 7 and the clamping block 8 together form a channel for the end of the connecting terminal 2 exposed to the outside of the first shell 101 to pass through. One end of the connecting terminal 2 is inserted into the channel so that the protrusion 7 cooperates with the clamping block 8 and clamps one end of the connecting terminal 2, thereby achieving the effect of stably installing the connecting terminal 2 on the shell 1.

[0064] like Figure 1 - Figure 3 As shown, in a specific implementation, the first clamping portion 5 includes: two connecting rods 501, a toggle rod 502 and an elastic portion 503;

[0065] One end of a connecting rod 501 can be rotatably connected to the fifth side surface of the first shell 101, and one end of the other connecting rod 501 can be rotatably connected to the sixth side surface 11 of the first shell 101. The other ends of the connecting rods 501 are hook-shaped and are used to engage or release the second engaging portion 6 on the socket 4. The toggle rod 502 is in the shape of a U, and the outer side of the toggle rod 502 is opposite to the bearing surface. One end of the toggle rod 502 is connected to one connecting rod 501, and the other end of the toggle rod 502 is connected to the other connecting rod. The lever 501 is connected; one end of the elastic portion 503 is connected to the inner side of the toggle lever 502, and the other end of the elastic portion 503 is connected to the third side; wherein the elastic portion 503 is used to provide a rebound force for the toggle lever 502, and the toggle lever 502 drives the two connecting rods 501 to reciprocate relative to the first shell 101 along the first direction, so that the other ends of the two connecting rods 501 with the hooks are engaged or released with the second engaging portion 6 on the socket 4, and the first direction is the direction from the third side to the fourth side 10.

[0066] Specifically, the technician holds the shell 1 to connect the connecting terminal 2 and the probe 3 on the shell 1 with the socket 4, and then manually moves the toggle rod 502 in the direction of the fourth side surface 10. The toggle rod 502 drives the two connecting rods 501 to rotate relative to the first shell 101 in the direction of the fourth side surface 10, and compresses the elastic part 503 at the same time. When the other ends of the two connecting rods 501 with the hooks are rotated into place, that is, the other ends of the two connecting rods 501 with the hooks can be engaged with the second engaging part 6 on the socket 4, the technician releases the toggle rod 502. Under the action of elastic potential energy, the elastic part 503 provides a rebound force for the toggle rod 502, and the two ends of the elastic part 503 respectively abut against the third side surface and the toggle rod 502 to maintain the relative position relationship between the first engaging part 5 and the second engaging part 6 after they are engaged.

[0067] When it is necessary to release the state in which the first clamping portion 5 and the second clamping portion 6 are connected, the technician manually moves the toggle rod 502 in the direction of the fourth side surface 10, and the toggle rod 502 drives the two connecting rods 501 to rotate relative to the first shell 101 in the direction of the fourth side surface 10, and compresses the elastic portion 503. When the other ends of the two connecting rods 501 with the hooks are rotated into place, that is, the other ends of the two connecting rods 501 with the hooks are separated from the second clamping portion 6 on the socket 4, the technician pulls out the shell 1 to separate the shell 1 from the socket 4, and releases the toggle rod 502 at the same time. Under the action of the elastic portion 503, the toggle rod 502 provides a rebound force for the toggle rod 502 to reset the first clamping portion 5, even if the shell 1 is separated from the socket 4 and the locked state is released.

[0068] The elastic part 503 is a spring, and there is at least one elastic part 503. The technician can select the number of the elastic parts 503 according to actual needs to provide better resilience for the toggle rod 502. The elastic part 503 can be connected between the shell 1 and between the elastic part 503 and the toggle rod 502 in a fixed connection or a detachable connection. In this application, in order to facilitate the later maintenance of the device, the elastic part 503 is connected between the shell 1 and between the elastic part 503 and the toggle rod 502 in a detachable manner. The connection methods are all conventional connections and will not be elaborated here. The spring is a prior art and can be obtained through procurement.

[0069] like Figure 1 - Figure 2 As shown, in a specific implementation, the fifth side surface and the surface of the second shell 102 on the same side as the fifth side surface are jointly provided with a first accommodating groove, and the first accommodating groove is used to accommodate and allow one end of a connecting rod 501 and a toggle rod 502 to reciprocate relative to the first shell 101 along a first direction; the sixth side surface 11 and the surface of the second shell 102 on the same side as the sixth side surface 11 are jointly provided with a second accommodating groove 12, and the second accommodating groove 12 is used to accommodate and allow the other end of another connecting rod 501 and a toggle rod 502 to reciprocate relative to the first shell 101 along the first direction.

[0070] Specifically, this structural design can reduce the overall size of the plug, facilitate the storage and use of the plug, and improve the use effect of the device.

[0071] like Figure 1 - Figure 2 As shown, in a specific implementation, the protrusion 7 and the first shell 101 are an integrated structure, and the toggle rod 502 and the two connecting rods 501 are an integrated structure.

[0072] Specifically, the protrusion 7 and the first housing 101 are integrally processed and cast, and this structural design can improve the connection strength of the assembly so that the assembly can be used for a long time. The toggle rod 502 and the two connecting rods 501 are integrally processed and cast, and this structural design can improve the connection strength of the assembly so that the assembly can be used for a long time.

[0073] In a specific implementation, the first shell 101 and the second shell 102 are connected by fastening bolts, and the protrusion 7 and the pressing block 8 are connected by pressing bolts.

[0074] Specifically, the present application provides a connection method between the first shell 101 and the second shell 102 and a connection method between the protrusion 7 and the clamping block 8, that is, the first shell 101 and the second shell 102 are connected by fastening bolts, and the protrusion 7 and the clamping block 8 are connected by clamping bolts. This structural design can facilitate later inspection and maintenance, and at the same time make it convenient for technicians to replace damaged connecting terminals 2 and / or probes 3.

[0075] Embodiment 2

[0076] like Figure 1 As shown, a docking device proposed in the second embodiment of the present utility model comprises: a socket 4 and a second clamping portion 6 arranged on the socket 4;

[0077] The second engaging portion 6 is used to match and engage or release the engaging portion 5 on the housing 1 of the plug, so that the housing 1 and the socket 4 maintain a relative position relationship and lock or separate the housing 1 and the socket 4 and release the locking state.

[0078] Specifically, the device to be tested is a new energy vehicle power battery pack, a battery pack (PACK), and PACK refers to the interface between the ion battery and the externally powered mobile power supply to complete the charging of the mobile power supply. The connecting terminal 2 is a prior art and can be obtained through purchase. The connecting terminal 2 is used to electrically connect the auxiliary test equipment to the socket 4 on the device to be tested to test the device to be tested. The probe 3 is a prior art and can be obtained through purchase. The probe 3 is used to connect the auxiliary test equipment to the socket 4 on the device to be tested to test the device to be tested. Probe 3 is a high-voltage interlocking probe 3. The high-voltage interlocking probe 3 is used to detect the looseness of the high-voltage circuit and provide an alarm message to the vehicle controller before the high-voltage power is cut off, reserving time for the vehicle system to take countermeasures. Looseness refers to the fact that the plug and the socket 4 on the high-voltage line may not be plugged in tightly, and the high-voltage interlocking plug is shorter than the high-voltage positive and negative plugs, causing the interlocking probe 3 to disconnect first, sending a feedback signal to the battery management system (BMS) vehicle controller and prompting an alarm high-voltage disconnection. In addition, the high-voltage interlock probe 3 detects the circuit before the vehicle is powered on. If the circuit is detected to be incomplete, the system cannot be powered on, avoiding accidents caused by virtual connection and other problems; preventing safety accidents caused by human error. During the operation of the high-voltage system, if there is no high-voltage interlock design, when the high-voltage connection point is manually disconnected, at the moment of disconnection, the entire circuit voltage will be added to both ends of the breakpoint, and the voltage will break through the air and arc between the two devices. Although the time is short, the energy is very high, which may cause damage to personnel and equipment around the breakpoint.

[0079] The socket 4 on the device to be tested is adapted to the connecting terminal 2 and the probe 3 on the shell 1, that is, the socket 4 of the device to be tested is provided with contacts for inserting the connecting terminal 2 and the probe 3, so that the device to be tested is electrically connected to the test device, which facilitates the test device to test the device to be tested.

[0080] The second clamping portion 6 on the socket 4 is adapted to the first clamping portion 5 so that the first clamping portion 5 on the shell 1 can be clamped with the second clamping portion 6. For example, the portion of the first clamping portion 5 used for clamping is in the shape of a hook, and the second clamping portion 6 can be a block used to clamp with the hook. The block can be indirectly connected to the socket 4 through other devices, or it can be directly connected to the socket 4. The connection method can be a detachable connection or a fixed connection, which is not limited in this application.

[0081] The docking device in the second embodiment can directly use the plug provided in the first embodiment. The specific implementation structure can refer to the relevant contents described in the first embodiment, which will not be described again here.

[0082] The docking device provided in the second embodiment of the utility model has a connecting terminal 2 and a probe 3 on a plug electrically connected to a test device through a wiring harness. The test device is plugged into a socket 4 on a device to be tested through the probe 3 and the connecting terminal 2 of the plug, so as to realize the effect of electrically connecting the test device to the device to be tested and performing a test. At the same time, a first clamping portion 5 is provided on the plug, and the first clamping portion 5 is used to clamp or release the clamping portion 6 on the socket 4, so as to maintain a stable relative position relationship between the shell 1 and the socket 4 and lock them, or to separate the shell 1 from the socket 4 and release the locking state. This structural design can effectively improve the stability of the relative position relationship between the shell 1 and the socket 4 when the connecting terminal 2 and the probe 3 on the shell 1 are plugged into the socket 4 on the device to be tested, so that the connecting terminal 2 and the probe 3 on the shell 1 can better contact with the socket 4 on different devices to be tested during long-term plugging and unplugging work, so as to realize the effect of electrically connecting the test device to the device to be tested and performing a test, and effectively solve the technical problems existing in the prior art.

[0083] Embodiment 3

[0084] A test tool provided in the third embodiment of the present utility model includes: a docking device and a plug, such as Figure 1 - Figure 3 As shown, the plug comprises: a first clamping portion 5, a housing 1, and a connecting terminal 2 and a probe 3 arranged on the housing 1;

[0085] One end of the connection terminal 2 and the probe 3 is used to connect to the test equipment through a wiring harness, and the other end of the connection terminal 2 and the probe 3 is used to plug into the socket 4 on the device to be tested;

[0086] The first clamping portion 5 is disposed on the housing 1;

[0087] The docking device comprises: a socket 4 and a second clamping portion 6 arranged on the socket 4;

[0088] Among them, the connecting terminal 2 and the probe 3 are plugged into or unplugged with the socket 4 through the shell 1, and the first clamping portion 5 is clamped or unclamped with the second clamping portion 6, so that the shell 1 and the socket 4 maintain a relative position relationship and lock them, or separate the shell 1 and the socket 4 and release the locking state.

[0089] Specifically, the test tool in the third embodiment can directly use the plug provided in the first embodiment and the docking device provided in the second embodiment. The specific implementation structure can refer to the relevant contents described in the first and second embodiments, which will not be repeated here.

[0090] The test fixture provided in the third embodiment of the utility model uses the plug provided in the first embodiment and the docking device provided in the second embodiment. The connection terminal 2 and the probe 3 are electrically connected to the test device through a wiring harness. The test device is plugged into the socket 4 on the device to be tested through the probe 3 and the connection terminal 2 on the shell 1, so as to achieve the effect of electrically connecting the test device to the device to be tested and testing. At the same time, a first clamping portion 5 is provided on the shell 1, and the first clamping portion 5 is used to clamp or release the clamping portion 6 on the socket 4, so that the shell 1 and the socket 4 maintain a stable relative position relationship and lock or separate the shell 1 from the socket 4 and release the locking state. This structural design can effectively improve the stability of the relative position relationship between the shell 1 and the socket 4 when the connection terminal 2 and the probe 3 on the shell 1 are plugged into the socket 4 on the device to be tested, so that the connection terminal 2 and the probe 3 on the shell 1 can be better contacted with the socket 4 on different devices to be tested during long-term plugging and unplugging work, so as to achieve the effect of electrically connecting the test device to the device to be tested and testing, which effectively solves the technical problems existing in the prior art.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A plug, characterized in that: include: A housing (1) and a connecting terminal (2) and a probe (3) arranged on the housing (1), wherein one end of the connecting terminal (2) and the probe (3) is used to be connected to a test device via a wiring harness, and the other end of the connecting terminal (2) and the probe (3) is used to be plugged into a socket (4) on a device to be tested; A first clamping portion (5) is provided on the housing (1) and is used to clamp or release the clamping portion (6) on the socket (4) so ​​that the housing (1) and the socket (4) maintain a relative positional relationship and lock them, or separate the housing (1) and the socket (4) and release the locking state.

2. The plug according to claim 1, characterized in that: The number of the connecting terminal (2) and the number of the probe (3) are both at least one.

3. The plug according to claim 1, characterized in that: The housing (1) comprises: A first shell (101) and a second shell (102) connected to each other, wherein the first shell (101) and the second shell (102) are detachably connected; The connecting terminal (2) passes through the first shell (101) and the second shell (102) in sequence, one end of the connecting terminal (2) is used to connect to the test equipment through the wiring harness, and the other end of the connecting terminal (2) is exposed outside the second shell (102) and is used to be plugged into the socket (4) on the device to be tested. The probe (3) is arranged on the second shell (102), one end of the probe (3) is used to connect to the test equipment through the wiring harness, and the other end of the probe (3) and the other end of the connecting terminal (2) are located on the same side of the second shell (102) and are used to be plugged into the socket (4) on the device to be tested.

4. The plug according to claim 3, characterized in that: The first shell (101) and the second shell (102) are both rectangular bodies; a protrusion (7) is provided on a first side surface of the first shell (101) facing away from the second shell (102); a pressing block (8) is detachably connected to the protrusion (7); and a passage is formed on the protrusion (7) and the pressing block (8) for the end of the connecting terminal (2) exposed outside the first shell (101) to pass through; The surface where the first shell (101) contacts the second shell (102) is the second side surface (9), the first side surface is opposite to the second side surface (9), the surface of the first shell (101) opposite to the bearing surface is the third side surface, the surface of the first shell away from the third side surface is the fourth side surface (10), the two opposite surfaces between the first side surface, the second side surface (9), the third side surface and the fourth side surface (10) are the fifth side surface and the sixth side surface (11), and the bearing surface is the ground.

5. The plug according to claim 4, characterized in that: The first clamping portion (5) comprises: Two connecting rods (501), one end of one connecting rod (501) being rotatably connected to the fifth side surface of the first shell (101), and one end of the other connecting rod (501) being rotatably connected to the sixth side surface (11) of the first shell (101), and the other ends of the connecting rods (501) being hook-shaped and used for engaging or releasing the engaging portion with the second engaging portion (6) on the socket (4); A toggle rod (502), the toggle rod (502) is in a U-shape, the outer side of the toggle rod (502) is opposite to the bearing surface, one end of the toggle rod (502) is connected to one of the connecting rods (501), and the other end of the toggle rod (502) is connected to another of the connecting rods (501); An elastic part (503), one end of the elastic part (503) is connected to the inner side of the toggle rod (502), and the other end of the elastic part (503) is connected to the third side surface; The elastic portion (503) is used to provide a rebound force for the toggle rod (502), and the toggle rod (502) drives the two connecting rods (501) to rotate back and forth along a first direction relative to the first shell (101), so that the other ends of the two connecting rods (501) with hooks are engaged with or disengaged from the second engaging portion (6) on the socket (4), and the first direction is the direction from the third side surface to the fourth side surface (10).

6. The plug according to claim 5, characterized in that: The fifth side surface and the surface of the second shell (102) on the same side as the fifth side surface are provided with a first receiving groove, the first receiving groove being used to receive and allow one end of the connecting rod (501) and the toggle rod (502) to reciprocate relative to the first shell (101) along the first direction; The sixth side surface (11) and the second shell (102) are provided with a second receiving groove (12) on the same side as the sixth side surface (11). The second receiving groove (12) is used to receive and allow the other end of the other connecting rod (501) and the toggle rod (502) to reciprocate relative to the first shell (101) along the first direction.

7. The plug according to claim 6, characterized in that: The protrusion (7) and the first shell (101) are an integrated structure, and the toggle rod (502) and the two connecting rods (501) are an integrated structure.

8. The plug according to claim 4, characterized in that: The first shell (101) and the second shell (102) are connected via fastening bolts, and the protrusion (7) and the clamping block (8) are connected via clamping bolts.

9. A docking device, characterized in that: include: A socket (4) and a second clamping portion (6) arranged on the socket (4), wherein the second clamping portion (6) is adapted to be matched with a first clamping portion (5) on a plug housing (1) and to be clamped or released, so that the housing (1) and the socket (4) maintain a relative positional relationship and are locked, or the housing (1) and the socket (4) are separated and the locked state is released.

10. A test tool, characterized in that: include: The plug according to any one of claims 1 to 8 and the docking device according to claim 9; The connecting terminal (2) and the probe (3) are plugged into or unplugged from the socket (4) through the housing (1), and the first clamping portion (5) is clamped into or unclamped from the second clamping portion (6), so that the housing (1) and the socket (4) maintain a relative positional relationship and are locked, or the housing (1) and the socket (4) are separated and the locked state is released.

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