Connecting device for insulation and voltage resistance instrument and insulation and voltage resistance testing device

Abstract

The utility model provides a connecting device for an insulation and voltage resistance instrument and an insulation and voltage resistance testing device. The connecting device comprises a first high-voltage resistance connecting line, a controller, a plurality of relays and a second high-voltage resistance connecting line which are connected in sequence, the first high-voltage-resistant connecting line is connected with the to-be-tested battery pack; the second high-voltage-resistant connecting line is connected with an external insulation voltage-resistant instrument; the controller is used for closing a target relay corresponding to a test instruction according to the test instruction if the test instruction is received, so as to open a target test channel of an insulation voltage-withstanding instrument corresponding to the target relay and a to-be-tested battery pack; and the insulation and voltage resistance instrument is used for inputting voltage to the target test channel and outputting a test result corresponding to the target test channel. According to the connecting device for the insulation and voltage resistance instrument, the controller is connected with the relays, so that the corresponding relays are controlled to be closed, a test channel between the to-be-tested battery pack and the insulation and voltage resistance instrument is conducted, and insulation and voltage resistance detection of the to-be-tested battery pack is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of insulation withstand voltage detection of vehicle battery packs, in particular to a connection device for an insulation withstand voltage instrument and an insulation withstand voltage test device. Background Art

[0002] The insulation withstand voltage test of traditional battery packs is to connect the two probes of the insulation withstand voltage tester to the poles between adjacent cells, then start the insulation withstand voltage tester to read the parameters, and then complete the insulation withstand voltage test between all the cells in the entire battery pack. Since the battery pack integrates multiple groups of battery modules, it is necessary to manually switch the battery modules to be tested frequently, which is inefficient. Utility Model Content

[0003] The purpose of the utility model is to provide a connection device and an insulation withstand voltage test device for an insulation withstand voltage instrument, so as to alleviate the technical problem of low efficiency of the detection method caused by the need to manually frequently switch the battery modules to be tested due to the integration of multiple groups of battery modules in the battery pack, and improve the detection efficiency.

[0004] In the first aspect, an embodiment of the utility model provides a connection device for an insulation withstand voltage instrument, comprising: a first high-voltage resistant connection line, a controller, a plurality of relays and a second high-voltage resistant connection line connected in sequence; the first high-voltage resistant connection line is connected to a battery pack to be tested; the second high-voltage resistant connection line is connected to an external insulation withstand voltage instrument; the controller is used for, if a test instruction is received, closing the target relay corresponding to the test instruction according to the test instruction, so as to open the target test channel between the insulation withstand voltage instrument and the battery pack to be tested corresponding to the target relay; the insulation withstand voltage instrument is used for inputting voltage to the target test channel, and outputting the test result corresponding to the target test channel.

[0005] In a preferred embodiment of the present invention, the first high-voltage resistant connecting wire and the second high-voltage resistant connecting wire are both high-voltage resistant banana head wires.

[0006] In a preferred embodiment of the present invention, the IO interface of the controller is connected to the plurality of relays via a pin-and-female connector.

[0007] In a preferred embodiment of the present invention, it further comprises: a communication module connected to the above-mentioned controller; the above-mentioned communication module is used to establish a communication connection between the above-mentioned controller and a host computer of the peripheral device.

[0008] In a preferred embodiment of the present invention, the communication module includes: an Ethernet communication module, an RS232 communication module and an RS485 communication module.

[0009] In a preferred embodiment of the present invention, the second high-voltage-resistant connecting wire is connected to the insulation withstand voltage instrument via a fuse.

[0010] In a preferred embodiment of the present invention, the number of the relays is ten.

[0011] In a preferred embodiment of the present invention, it further includes: a housing for fixing the controller and the relay.

[0012] In a preferred embodiment of the present invention, a gap of a preset distance is reserved between the relay and the housing.

[0013] In a second aspect, an embodiment of the utility model further provides an insulation withstand voltage test device, comprising: the above-mentioned connecting device for an insulation withstand voltage tester, and also comprising an insulation withstand voltage tester connected to the above-mentioned connecting device.

[0014] The embodiments of the present invention have the following beneficial technical effects:

[0015] The embodiment of the utility model provides a connection device for an insulation withstand voltage instrument and an insulation withstand voltage test device, including: a first high-voltage connection line, a controller, a plurality of relays and a second high-voltage connection line connected in sequence; the first high-voltage connection line is connected to a battery pack to be tested; the second high-voltage connection line is connected to an external insulation withstand voltage instrument; the controller is used to close the target relay corresponding to the test instruction according to the test instruction if a test instruction is received, so as to open the target test channel between the insulation withstand voltage instrument and the battery pack to be tested corresponding to the target relay; the insulation withstand voltage instrument is used to input voltage to the target test channel and output the test result corresponding to the target test channel. The connection device for the insulation withstand voltage instrument connects the relay through the controller, thereby controlling the corresponding relay to close, so as to conduct the test channel between the battery pack to be tested and the insulation withstand voltage instrument, thereby completing the insulation withstand voltage test of the battery pack to be tested.

[0016] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures specifically pointed out in the description, claims and drawings.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art 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 work.

[0019] Figure 1 A schematic structural diagram of a connection device for an insulation withstand voltage instrument provided by an embodiment of the utility model;

[0020] Figure 2 A physical diagram of a connection device for an insulation withstand voltage instrument provided in an embodiment of the utility model;

[0021] Figure 3 A physical diagram of another connection device for an insulation withstand voltage instrument provided in an embodiment of the utility model;

[0022] Figure 4 A schematic structural diagram of an insulation withstand voltage tester testing device provided in an embodiment of the utility model.

[0023] Icons: 11- first high-voltage connection line; 12- controller; 13- multiple relays; 14- second high-voltage connection line; 21- housing; 31- circuit board; 32- acrylic fixing bracket; 41- connection device for insulation withstand voltage tester; 42- insulation withstand voltage tester. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] The insulation withstand voltage test of traditional battery packs is to connect the two probes of the insulation withstand voltage tester to the poles between adjacent cells, then start the insulation withstand voltage tester to read the parameters, and then complete the insulation withstand voltage test between all the cells in the entire battery pack. Since the battery pack integrates multiple groups of battery modules, it is necessary to manually switch the battery modules to be tested frequently, which is inefficient.

[0026] Based on this, the embodiment of the utility model provides a connection device for an insulation withstand voltage instrument and an insulation withstand voltage test device. The connection device for the insulation withstand voltage instrument is connected to a relay through a controller, thereby controlling the corresponding relay to close, so as to connect the test channel between the battery pack to be tested and the insulation withstand voltage instrument, thereby completing the insulation withstand voltage test of the battery pack to be tested. To facilitate understanding of the embodiment of the utility model, a connection device for an insulation withstand voltage instrument disclosed in the embodiment of the utility model is first introduced in detail.

[0027] Example 1

[0028] Figure 1 A schematic structural diagram of a connection device for an insulation withstand voltage instrument provided in an embodiment of the utility model.

[0029] Depend on Figure 1 As can be seen, the device includes: a first high-voltage resistant connecting line 11, a controller 12, a plurality of relays 13 and a second high-voltage resistant connecting line 14 connected in sequence; the first high-voltage resistant connecting line 11 is connected to the battery pack to be tested; the second high-voltage resistant connecting line 14 is connected to an external insulation withstand voltage meter; the controller 12 is used for, if a test instruction is received, closing the target relay corresponding to the test instruction according to the test instruction, so as to open the target test channel between the insulation withstand voltage meter corresponding to the target relay and the battery pack to be tested; the insulation withstand voltage meter is used for inputting voltage to the target test channel and outputting the test result corresponding to the target test channel.

[0030] In one embodiment, the first high-voltage resistant connecting wire 11 and the second high-voltage resistant connecting wire 14 are both high-voltage resistant banana-head wires.

[0031] Furthermore, the IO interface of the controller 12 is connected to the plurality of relays 13 via a pin-and-female connector.

[0032] Furthermore, the device further comprises: a communication module connected to the controller 12; the communication module is used to establish a communication connection between the controller and a host computer of an external device.

[0033] The communication modules include: Ethernet communication module, RS232 communication module and RS485 communication module.

[0034] Furthermore, the second high-voltage-resistant connecting line 14 is connected to the insulation withstand voltage instrument through a fuse.

[0035] Furthermore, the number of the above relays is 10.

[0036] For ease of understanding, Figure 2 A physical diagram of a connection device for an insulation withstand voltage instrument provided in an embodiment of the utility model.

[0037] Depend on Figure 2 As can be seen, the device further comprises: a housing 21 for fixing the controller and the relay.

[0038] Furthermore, a gap of a preset distance is reserved between the relay and the housing 21 .

[0039] Here, the housing 21 is a metal housing.

[0040] For ease of understanding, Figure 3 A physical diagram of another connection device for an insulation withstand voltage instrument provided in an embodiment of the utility model.

[0041] Depend on Figure 3 As can be seen, the plurality of relays 13 are integrated into a circuit board 31 , and the circuit board 31 is supported by an acrylic fixing bracket 32 ​​.

[0042] The embodiment of the utility model provides a connection device for an insulation withstand voltage instrument, including: a first high-voltage connection line, a controller, a plurality of relays and a second high-voltage connection line connected in sequence; the first high-voltage connection line is connected to a battery pack to be tested; the second high-voltage connection line is connected to an external insulation withstand voltage instrument; the controller is used to close the target relay corresponding to the test instruction according to the test instruction if a test instruction is received, so as to open the target test channel between the insulation withstand voltage instrument and the battery pack to be tested corresponding to the target relay; the insulation withstand voltage instrument is used to input voltage to the target test channel and output the test result corresponding to the target test channel. The connection device for the insulation withstand voltage instrument connects the relay through the controller, thereby controlling the corresponding relay to close, so as to conduct the test channel between the battery pack to be tested and the insulation withstand voltage instrument, thereby completing the insulation withstand voltage detection of the battery pack to be tested.

[0043] Example 2

[0044] Based on the above embodiments, Figure 4 A schematic structural diagram of an insulation withstand voltage tester testing device provided in an embodiment of the utility model.

[0045] Depend on Figure 4 As can be seen, the insulation withstand voltage tester testing device includes: the connection device 41 for the insulation withstand voltage tester in Example 1, and also includes an insulation withstand voltage tester 42 connected to the above-mentioned connection device.

[0046] The insulation withstand voltage test device provided in this embodiment has the same technical features as the connection device for the insulation withstand voltage tester provided in the above-mentioned embodiment 1, so it can also solve the same technical problems and achieve the same technical effects. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the insulation withstand voltage test device described above can refer to the corresponding structure of the connection device for the insulation withstand voltage tester in the above-mentioned embodiment 1, and will not be repeated here.

[0047] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connected", and "connected" 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 connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Finally, it should be explained that the above embodiments are only used to illustrate the technical solution of the present utility model, not to limit it; although the present utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace some or all of the technical features therein with equivalents; and 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 present utility model.

Claims

1. A connection device for an insulation withstand voltage instrument, characterized in that: include: A first high-voltage resistant connecting line, a controller, a plurality of relays and a second high-voltage resistant connecting line connected in sequence; The first high-voltage-resistant connecting wire is connected to the battery pack to be tested; the second high-voltage-resistant connecting wire is connected to an external insulation withstand voltage instrument; The controller is used for, if receiving a test instruction, closing a target relay corresponding to the test instruction according to the test instruction, so as to open a target test channel between the insulation withstand voltage tester and the battery pack to be tested corresponding to the target relay; The insulation withstand voltage tester is used to input voltage to the target test channel and output the test result corresponding to the target test channel.

2. The connection device for the insulation withstand voltage instrument according to claim 1, characterized in that: The first high-voltage resistant connecting wire and the second high-voltage resistant connecting wire are both high-voltage resistant banana head wires.

3. The connection device for the insulation withstand voltage instrument according to claim 1, characterized in that: The IO interface of the controller is connected to the plurality of relays via a pin-and-female connector.

4. The connection device for the insulation withstand voltage instrument according to claim 3, characterized in that: Also includes: a communication module connected to the controller; The communication module is used to establish a communication connection between the controller and a host computer of an external device.

5. The connection device for the insulation withstand voltage instrument according to claim 4, characterized in that: The communication modules include: an Ethernet communication module, an RS232 communication module and an RS485 communication module.

6. The connection device for the insulation withstand voltage instrument according to claim 1, characterized in that: The second high-voltage connection line is connected to the insulation withstand voltage instrument through a fuse.

7. The connection device for an insulation withstand voltage instrument according to claim 1, characterized in that: The number of the relays is ten.

8. The connection device for the insulation withstand voltage instrument according to claim 1, characterized in that: Also includes: A housing for fixing the controller and the relay.

9. The connection device for the insulation withstand voltage instrument according to claim 8, characterized in that: A gap of a preset distance is reserved between the relay and the housing.

10. An insulation withstand voltage test device, characterized in that: include: The connection device for an insulation withstand voltage tester as described in any one of claims 1 to 9 further includes an insulation withstand voltage tester connected to the connection device.

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