CN217901915U

CN217901915U - Current probe and electrical performance testing system

Info

Publication number: CN217901915U
Application number: CN202222050970.5U
Authority: CN
Inventors: 张振兴; 王炳; 王亚云; 何兵; 房永�
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd; Zhejiang Remote Commercial Vehicle R&D Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd; Zhejiang Remote Commercial Vehicle R&D Co Ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-11-25
Anticipated expiration: 2032-08-01

Abstract

The utility model discloses a current probe and electrical property test system, wherein current probe includes plug, an at least socket and shunt. The plug is used for being plugged in a fuse box of a vehicle, and a plurality of plugs are arranged; the at least one socket is used for installing a fuse in a fuse box of a vehicle, and the socket is electrically connected with the plug; a shunt electrically connected to the socket. The utility model discloses technical scheme has improved current probe's commonality.

Description

Current probe and electrical performance testing system

Technical Field

The utility model relates to an electrical property detects technical field, in particular to current probe and electrical property test system.

Background

In the whole vehicle development process, the electrical performance of a vehicle electrical system needs to be tested, and a current probe is often adopted for electrical performance testing. The basic structure of the current probe comprises a fuse plug, a fuse socket and a shunt which are electrically connected through a cable.

At present, current probes are all integrated devices, namely, a fuse plug, a cable, a fuse socket, a cable and a current divider are integrated into a whole structure. However, the fuse in the electrical system has many different types, which are incompatible, and it is necessary to provide fuse plugs and fuse sockets in different types, and correspondingly, a shunt. In order to adapt to electrical loads with different powers, different current probes are required to complete single-load testing and full-load testing. This makes the current probe less versatile.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a current probe aims at improving current probe's commonality.

In order to achieve the above object, the present invention provides a current probe, including:

the plug is used for being plugged in a fuse box of a vehicle, and a plurality of plugs are arranged;

the socket is used for installing a fuse in a fuse box of a vehicle and is electrically connected with the plug; and

a shunt electrically connected with the socket.

Optionally, a plurality of the plugs are connected in parallel and are electrically connected with the socket.

Optionally, the number of the socket is one, the socket is provided with a plurality of slots, and the number and the types of the slots are matched with those of the plugs.

Optionally, a bus bar is arranged on the socket, and the bus bar is in contact with each slot.

Optionally, the socket is integrated with the shunt into a unitary structure.

Optionally, the plug and the shunt are detachably connected through a first cable, a first connection hole is formed in one end, facing the first cable, of the plug, a first connection head is arranged at one end, facing the plug, of the first cable, and the first connection head is inserted into the first connection hole so that the first cable is electrically connected with the plug.

Optionally, the first cable with the shunt can be dismantled and be connected, first cable orientation the one end of shunt is equipped with the second connector, be equipped with the second connecting hole on the shunt, the second connector inserts the second connecting hole is so that first cable with the shunt electricity is connected.

Optionally, the plug includes a housing and a pin protruding out of the housing, and the first connection hole is disposed in the housing and electrically conductively connected to the pin.

Optionally, a plurality of the sockets are integrated on the shunt.

The utility model also provides an electrical property test system, include current probe, data acquisition module and supervisory equipment, current probe with the data acquisition module electricity is connected, the data acquisition module with the supervisory equipment electricity is connected.

The utility model discloses a technical scheme makes a plurality of plugs and at least one socket electrically conductive connection, socket and shunt electrically conductive connection through set up a plurality of plugs, at least one socket and shunt in current probe. The plurality of plugs may be of different types and the same type, and the type of the receptacle may be identical to the type of the plug, so that the plug and the receptacle may be mated. Meanwhile, the shunt adopts the shunt with the automatic range changing function, so that when different types of plugs are used, the shunt can automatically change the range to meet the power load. When the plugs of the same type are arranged, if one of the plugs fails, the other plug can be used for electrical performance testing, and normal use of the current probe is guaranteed. When different types of plugs are arranged, one current probe can detect the electrical property of various types of fuses, so that the universality of the current probe is improved. When the electrical property of the whole vehicle electrical system is detected, all single-load and full-load tests can be completed by adopting one current probe, so that the number of the current probes is reduced, the test cost is reduced, the test workload is reduced, and the loss of manpower and material resources is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of an electrical performance testing system of the present invention;

FIG. 2 is a schematic diagram of one embodiment of a socket in the electrical performance testing system of FIG. 1;

FIG. 3 is a schematic diagram of another embodiment of an electrical performance testing system;

fig. 4 is a schematic structural diagram of an embodiment of a plug in the electrical performance testing system of fig. 3.

The reference numbers illustrate:

reference numerals	Name(s)	Reference numerals	Name(s)
				100	Current probe	130	Flow divider
110	Plug with improved structure	131	Second connecting hole
				111	First connecting hole	140	First cable
112	Shell body	141	First connector
				113	Pin	142	Second connector
120	Socket with improved structure	200	Electrical performance testing system
				121	Inserting slot	210	Data acquisition module
122	Bus bar	220	Monitoring device

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application related to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of technical features indicated are implicitly being indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

At present, current probes are all integrated equipment, namely, a fuse plug, a cable, a fuse socket, a cable and a current divider are of an integrated integral structure. However, the fuse in the electrical system has many different types, which are incompatible, and it is necessary to provide fuse plugs and fuse sockets in different types, and correspondingly, a shunt. In order to adapt to electrical loads with different powers, different current probes are required to complete single-load testing and full-load testing. This makes the current probe less versatile.

Fuses have many fuse types such as MINI, MAXI, MCASE, JCASE, MICRO, etc., each of which requires a shunt. In order to meet the electrical performance test requirements of the whole vehicle, a plurality of current probes are required to be combined; and the shunt has different measuring ranges and accuracies and needs to be adapted to different vehicle-mounted electric appliance powers. Therefore, the electrical performance test equipment has higher cost, the test workload is increased, and a large amount of manpower and material resources are consumed.

In addition, the integrated arrangement of the current probe also enables the current probe to be unusable when a fuse plug or a cable is damaged, and the waste of equipment is caused.

In view of this, the utility model provides a current probe.

Referring to fig. 1 to 4, in the embodiment of the present invention, the current probe 100 includes a plug 110, at least one socket 120, and a shunt 130. When the current probe 100 is used for testing the electrical performance of the electrical system of the whole vehicle, a fuse in a fuse box of the vehicle is pulled out and then inserted into a socket 120 of the current probe 100, and then a plug 110 of the current probe 100 is inserted into the fuse box of the vehicle, so that the electrical performance of the electrical system is tested.

The plugs 110 are used for being plugged in a fuse box of a vehicle, and a plurality of plugs 110 are arranged; at least one socket 120 for installing a fuse in a fuse box of a vehicle, the socket 120 being electrically connected to the plug 110; the shunt 130 is electrically connected to the socket 120.

Specifically, fuses have numerous fuse models such as MINI, MAXI, MCASE, JCASE, MICRO, etc., each of which requires a mating plug 110 and receptacle 120 to be configured. The plug 110 of the present invention is provided with a plurality of plugs 110, and the types of the plugs 110 may be the same or may be different. When two or more plugs 110 of the same type are included in the plurality of plugs 110, if one of the plugs 110 is damaged, another plug 110 of the same type can be used for testing without hindering the normal use of the current probe 100. When the plurality of plugs 110 are all of different types, the current probe 100 can be made to meet a plurality of different fuse types, thereby improving the applicability of the current probe 100. Correspondingly, when only one type of plug 110 is provided, only one type of plug 110 is required to be provided for the receptacle 120. When the plugs 110 are provided with a plurality of types, the sockets 120 are also provided with a plurality of types which are matched with the plugs 110 one by one, so that the matching adaptability between the plugs 110 and the sockets 120 is ensured, and the current probe 100 can detect different types of fuses. Shunt 130 is an instrument for measuring direct current, in the utility model discloses in, for making current probe 100 can detect different fuse types, can adapt to the electrical load of different powers, shunt 130 adopts automatic variable range shunt 130. Thus, only one shunt 130 is needed to complete all single load and full load tests.

The utility model discloses a technical scheme makes a plurality of plugs 110 and at least one socket 120 conductive connection, socket 120 and shunt 130 conductive connection through set up a plurality of plugs 110, at least one socket 120 and shunt 130 in current probe 100. There may be different types and the same type of plug 110, and the type of receptacle 120 may be identical to the type of plug 110, so that the plug 110 and the receptacle 120 may be mated. Meanwhile, the shunt 130 employs an auto-ranging shunt 130, so that when a different type of plug 110 is used, the shunt 130 can automatically range to meet its power load. When the plugs 110 of the same type are arranged, if one of the plugs is in failure, the other plug 110 can be used for electrical performance test, and the normal use of the current probe 100 is ensured. When different types of plugs 110 are arranged, one current probe 100 can detect the electrical performance of various types of fuses, so that the universality of the current probe 100 is improved. When the electrical property of the whole vehicle electrical system is detected, all single-load and full-load tests can be completed by adopting one current probe 100, so that the number of the current probes 100 is reduced, the test cost is reduced, the test workload is reduced, and the loss of manpower and material resources is reduced.

Referring to fig. 1, a plurality of plugs 110 are further connected in parallel and are electrically connected to the socket 120. Specifically, in one embodiment, the plugs 110 are disposed in parallel, and the plugs 110 are electrically connected to the socket 120. The plurality of plugs 110 may be in the form of castings configured in different shapes to match different hole locations of a fuse block of a vehicle for electrical performance testing of different fuse blocks. The plurality of plugs 110 after casting are connected in parallel by a cable so that each plug 110 can be electrically connected to the socket 120. In one embodiment, the types of plug 110 include, but are not limited to, MINI, MIDI, JCASE, MCASE, MAXI, MICRO, and like forms. The parallel arrangement of the plugs 110 enables the current probe 100 to perform electrical performance tests on different types of fuse boxes, the application range of the current probe 100 is widened, the current probe 100 required in the electrical system testing process is reduced, the detection cost is reduced, the testing workload is reduced, and the loss of manpower and material resources is reduced.

Referring to fig. 1 and fig. 2, further, one socket 120 is provided, and a plurality of slots 121 are provided on the socket 120, and the number and types of the slots 121 are matched with those of the plugs 110. Specifically, in one embodiment, a plurality of plugs 110 are arranged in parallel, and one plug 120 is arranged. At this time, the socket 120 is provided with a plurality of slots 121, the number of the slots 121 is consistent with the number of the plugs 110, and the types of the slots 121 are consistent with the types of the plugs 110. That is, if the plug 110 needs to be plugged into a MINI type fuse box, the insertion slot 121 is correspondingly shaped to receive a MINI type fuse. The number and type of the plugs 110 and the sockets 121 are not limited as long as they are matched with each other. Of course, a plurality of plugs 110 may be connected in parallel, and a plurality of sockets 120 may also be provided, where the number and type of sockets 120 are the same as those of plugs 110. In consideration of the light weight, miniaturization and simplicity of the overall structure of the current probe 100, a plurality of plugs 110 may be connected in parallel, and a socket 120 is provided, wherein a plurality of slots 121 are provided on the socket 120, and the number and types of the slots 121 are matched with those of the plugs 110.

Referring to fig. 2, further, a bus bar 122 is disposed on the socket 120, and the bus bar 122 contacts each slot 121. Specifically, when the electrical performance test is performed, the fuse in the vehicle fuse box is inserted into the insertion slot 121, so that the fuse can be in contact with the bus bar 122. The bus bar 122 is made of a conductive material, so that the bus bar 122 can be electrically connected to the fuse, and the fuse in the slot 121 is electrically connected to the plug 110 and the shunt 130 through the bus bar 122, so as to form a conductive loop among the plug 110, the cable, the bus bar 122, the fuse, the bus bar 122, the cable, and the shunt 130.

Referring to fig. 3, further, the socket 120 and the shunt 130 are integrated into a single structure. Specifically, in one embodiment, the receptacle 120 is integrated into the shunt 130, i.e., the receptacle 120 is cut into the shunt 130 for mounting a fuse within a vehicle fuse box. The integration of the socket 120 and the shunt 130 facilitates the integration and miniaturization of the overall structure of the current probe 100, thereby facilitating the carrying of the current probe 100.

Referring to fig. 3, further, the plug 110 is detachably connected to the shunt 130 through a first cable 140, a first connection hole 111 is formed at an end of the plug 110 facing the first cable 140, a first connection head 141 is formed at an end of the first cable 140 facing the plug 110, and the first connection head 141 is inserted into the first connection hole 111 to electrically connect the first cable 140 to the plug 110. Specifically, the plug 110 and the shunt 130 are electrically connected through a first cable 140, a first connection hole 111 is formed at an end of the plug 110 facing the first cable 140, and a first connection head 141 is formed at an end of the first cable 140 facing the plug 110. In an embodiment, the diameters of the first connection hole 111 and the first connector 141 may be 2mm or 4mm, and may be 3mm or 5mm, where the diameters of the first connection hole 111 and the first connector 141 are not limited. As long as the number and shape of the first connection holes 111 and the first connection heads 141 are matched so that the first connection heads 141 can be inserted into the first connection holes 111, thereby achieving the detachable connection between the first cable 140 and the plug 110. The first connection hole 111 and the first connection head 141 are made of conductive materials to make conductive connection therebetween. Thus, when the plug 110 is out of order and needs to be replaced, the first connection head 141 of the first cable 140 and the first connection hole 111 of the plug 110 are separated, and then the normal plug 110 is connected with the first cable 140, so that the normal use of the current probe 100 can be realized. The detachable connection of the plug 110 and the first cable 140 can be realized only by replacing the plug 110 when the plug 110 is damaged or fails, so that the rejection of the whole current probe 100 is avoided, and the use cost of the current probe 100 is reduced. Meanwhile, the plug 110 is easy to replace and operate, and timely work of the current probe 100 is guaranteed.

Referring to fig. 3, further, the first cable 140 is detachably connected to the shunt 130, a second connector 142 is disposed at an end of the first cable 140 facing the shunt 130, a second connection hole 131 is disposed on the shunt 130, and the second connector 142 is inserted into the second connection hole 131 to electrically connect the first cable 140 and the shunt 130. Specifically, one end of the first cable 140 facing the shunt 130 is provided with a second connector 142, and one end of the shunt 130 facing the first cable 140 is provided with a second connection hole 131. In an embodiment, the diameters of the second connection hole 131 and the second connector 142 may be 2mm or 4mm, and may also be 3mm or 5mm, where the diameters of the second connection hole 131 and the second connector 142 are not limited. As long as the number and shape of the second coupling holes 131 and the second coupling head 142 are matched so that the second coupling head 142 can be inserted into the second coupling holes 131, thereby accomplishing the detachable coupling between the first cable 140 and the shunt 130. The second connection hole 131 and the second connection head 142 are made of conductive materials, so that the two are electrically connected. Thus, when the first cable 140 fails and needs to be replaced, the first connector 141 of the first cable 140 is separated from the first connection hole 111 of the plug 110, the second connector 142 of the first cable 140 is separated from the second connection hole 131 of the shunt 130, and then the normal first cable 140 is connected with the plug 110 and the shunt 130, so that the normal use of the current probe 100 can be realized. The detachable connection of the first cable 140 and the shunt 130 can be realized only by replacing the first cable 140 when the first cable 140 is damaged or broken, so that the rejection of the whole current probe 100 is avoided, and the use cost of the current probe 100 is reduced. Meanwhile, the first cable 140 is easy to replace and operate, and timely work of the current probe 100 is guaranteed.

Referring to fig. 4, the plug 110 further includes a housing 112 and a pin 113 protruding out of the housing 112, and the first connection hole 111 is disposed in the housing 112 and electrically connected to the pin 113. Specifically, the plug 110 has an insulating housing 112, a pin 113 is disposed in the housing 112 and extends out of the housing 112, the pin 113 is used for plugging with a fuse box of a vehicle, and therefore the pin 113 is made of a conductive material. The pins 113 are cast according to the type of fuse, i.e. different pins 113 may have different shapes to mate with different fuse boxes of the vehicle. The first connection hole 111 is disposed in the housing 112, and the first connection hole 111 and one end of the pin 113 located in the housing 112 are electrically connected to realize an electrically conductive connection between the pin 113, the first connection hole 111, and the first connection head 141, that is, an electrically conductive connection between the plug 110 and the first cable 140.

Further, a plurality of sockets 120 are integrated on the shunt 130. Specifically, in one embodiment, a plurality of sockets 120 are provided in the splitter 130, and the plurality of sockets 120 are of different types. Thus, when the current probe 100 needs to test different types of fuse boxes, the plug 110 at the front end of the first cable 140 is simply pulled out and replaced with the plug 110 matching the type of the fuse box to be tested, and the fuse in the vehicle fuse box is inserted into the corresponding socket 120 in the shunt 130. Thus, the application range of the current probe 100 is widened, and the universality of the current probe 100 is improved.

Referring to fig. 1 and fig. 3, the present invention further provides an electrical performance testing system 200, where the electrical performance testing system 200 includes a current probe 100, a data acquisition module 210 and a monitoring device 220, and the specific structure of the current probe 100 refers to the above embodiments, and since the electrical performance testing system 200 adopts all technical solutions of all the above embodiments, all beneficial effects brought by the technical solutions of the above embodiments are at least achieved, which is not repeated herein. The current probe 100 is electrically connected to the data acquisition module 210, and the data acquisition module 210 is electrically connected to the monitoring device 220. Specifically, the shunt 130 of the current probe 100 is electrically connected to the data acquisition module 210 through a cable, and the data acquisition module 210 is also electrically connected to the monitoring device 220 through a cable.

Referring to fig. 1, in an embodiment, a plurality of plugs 110, a socket 120 and a shunt 130 are disposed in a current probe 100, the plurality of plugs 110 are disposed in parallel, the socket 120 is disposed with a plurality of slots 121, and the socket 120 is disposed with a bus bar 122. The working principle of the current probe 100 is as follows:

when a single load test is carried out, if the corresponding load fuse is MINI fuse, the MINI fuse is pulled out from a fuse box of the vehicle, the plug 110 of the current probe 100 is inserted into the fuse box of the vehicle, and meanwhile, the corresponding fuse in the fuse box is inserted into the socket 120 of the current probe 100, so that a loop of the positive pole of the storage battery, the plug 110, the socket 120, the shunt 130, the electrical appliance and the grounding point is formed.

After the whole vehicle is powered on, the function of the corresponding fuse is started, the current curve is analyzed through the monitoring equipment 220, and whether the selected fuse is reasonable or not is analyzed according to the impact current, the maximum current and the rated current of the curve.

In the same single load test, if the corresponding load fuses are MICRO, MAXI, MCASE, JCASE, etc. fuses, the fuses are pulled out and inserted into the socket 120 of the current probe 100, and the above steps are repeated to collect current data.

When the full load test is carried out, if the primary fuse is a fuse such as JCASE, MICRO, MCASE, etc. The fuses are removed from the fuse box of the vehicle and then inserted into the socket 120 of the current probe 100, and the plug 110 of the current probe 100 is inserted into the fuse box of the vehicle, so as to form a loop of the positive pole of the storage battery, the plug 110, the socket 120, the shunt 130, the electrical appliance and the grounding point.

Meanwhile, the current divider 130 is connected with the data acquisition module 210 and the external monitoring device 220, and the current curve is represented by software.

Referring to fig. 3, in an embodiment, the socket 120 of the current probe 100 is integrated with the shunt 130, and the plug 110 is detachably connected to the shunt 130. The working principle of the current probe 100 is as follows:

during the single load test and the full load test, the corresponding fuse is pulled out from the fuse box of the vehicle to be inserted into the socket 120 of the shunt 130, then the corresponding plug 110 is connected with the shunt 130 through the first cable 140, and then the plug is inserted into the fuse box of the vehicle to perform the corresponding test, so as to form a loop of the positive pole of the storage battery, the plug 110, the shunt 130, the electrical appliance and the grounding point.

The plug 110 of the current probe 100 can be replaced according to the fuse type, and only one variable-range current divider 130 is needed to complete all single-load tests and full-load tests, so that the measurement precision requirement is automatically met. If the plug 110 of the current probe 100 is damaged, the plug is replaced conveniently according to the above form, so that the condition that the current probe 100 cannot be used integrally due to the damage of the fuse plug 110 is avoided, the service life of equipment is prolonged, and the overall cost of the equipment is reduced.

The above is only the optional embodiment of the present invention, and not limiting the patent scope of the present invention, all under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the specification and the attached drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. A current probe, comprising:

a shunt electrically connected with the socket.

2. The current probe of claim 1, wherein a plurality of said plugs are connected in parallel and are electrically connected to said socket.

3. The current probe of claim 2, wherein said socket is provided with one, and said socket is provided with a plurality of slots, and said slots are matched with the number and type of said plugs.

4. The current probe of claim 3, wherein a bus bar is provided on said socket, said bus bar contacting each of said slots.

5. The current probe of claim 1, wherein said socket is integrated with said shunt into a unitary structure.

6. The current probe of claim 5, wherein the plug is removably coupled to the shunt by a first cable, wherein the plug is provided with a first coupling hole at an end facing the first cable, and wherein the first cable is provided with a first coupling head at an end facing the plug, the first coupling head being inserted into the first coupling hole to electrically couple the first cable to the plug.

7. The current probe of claim 6, wherein the first cable is detachably connected to the shunt, a second connector is disposed at an end of the first cable facing the shunt, a second connection hole is disposed on the shunt, and the second connector is inserted into the second connection hole to electrically connect the first cable and the shunt.

8. The current probe of claim 6, wherein said plug includes a housing and a pin projecting out of said housing, said first connection aperture being disposed in said housing and being in electrically conductive connection with said pin.

9. The current probe of claim 5, wherein a plurality of said sockets are integrated on said shunt.

10. An electrical performance testing system comprising a current probe according to any one of claims 1 to 9, a data acquisition module and a monitoring device, the current probe being electrically connected to the data acquisition module, the data acquisition module being electrically connected to the monitoring device.