CN204172704U - The manual maintenance make and break device of vehicle - Google Patents
The manual maintenance make and break device of vehicle Download PDFInfo
- Publication number
- CN204172704U CN204172704U CN201420521175.2U CN201420521175U CN204172704U CN 204172704 U CN204172704 U CN 204172704U CN 201420521175 U CN201420521175 U CN 201420521175U CN 204172704 U CN204172704 U CN 204172704U
- Authority
- CN
- China
- Prior art keywords
- voltage
- coolant
- temperature
- temperature switch
- interlocking loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of manual maintenance make and break device of vehicle.Vehicle comprises high voltage circuit and high-voltage interlocking loop.Device comprises: high-voltage connection terminal, is set to be electrically connected with described high voltage circuit; Low-voltage wiring terminal, is set to be electrically connected with described high-voltage interlocking loop; Handle, is set to be suitable for being pushed to disconnect the electrical connection between described device and high-voltage interlocking loop, thus disconnects described high voltage circuit; And coolant-temperature switch, be set in series be electrically connected with described low-voltage wiring terminal and described handle, described coolant-temperature switch is set to disconnect when the temperature of described device is greater than the threshold temperature preset, to disconnect the electrical connection between described device and described high-voltage interlocking loop, thus disconnect described high voltage circuit.
Description
Technical field
The utility model relates generally to vehicle electric field, relates more specifically to a kind of manual maintenance make and break device of vehicle.
Background technology
Manual maintenance make and break device (MSD) is the vitals of protection vehicle high-voltage circuit safety.In order to ensure operator safety, MSD is connected in high-voltage interlocking loop (HVIL).Removing in MSD process, namely HVIL can detect and disconnect prior to high voltage circuit, and then notice control unit for vehicle (VCU) disconnects high voltage circuit, thus avoids the high pressure Danger Electric shock risk of operating personal.But MSD is connected by adaptor union with other parts of vehicle circuit, and these adaptor unions have contact resistance.In addition, the electronic component of MSD inside and the wire fuse be integrated in MSD also have certain resistance.Above-mentioned resistance forms the all-in resistance of MSD, this all-in resistance along with temperature raise, aging effect in operating cycles and user use mis-arrange and increase.After energising, the increase of all-in resistance will cause the increase of egress of heat in MSD, and it is aging to accelerate MSD, thus causes all-in resistance to increase further.The too high problem of the temperature caused because MSD all-in resistance is excessive is a large potential safety hazard of vehicle high-voltage circuit.
For making high potential assembly can have longer service life, the electric heating design of assembly needs to consider that the statistical of environmental factor, aging action, resistive performance is equipped with and the most bad user's configuring condition.Existing MSD is the surdimensionnement because of above-mentioned factor impact often, adds productive costs.In addition, even if take into full account above-mentioned all factors at design phase, still may there is the infringement of unexpected assembly and cause resistance to increase.
In order to avoid foregoing circuit safety problem, need a kind of MSD with coolant-temperature switch, once MSD exceedes threshold temperature, before entering to cause a step infringement, disconnect high voltage circuit.
Utility model content
In view of the above problems, propose the utility model, to provide a kind of manual maintenance make and break device of vehicle, to overcome the problems referred to above or to solve the problem at least in part.
According to the utility model, provide a kind of manual maintenance make and break device of vehicle.Described vehicle comprises high voltage circuit and high-voltage interlocking loop, and described device comprises: high-voltage connection terminal, is set to be electrically connected with described high voltage circuit; Low-voltage wiring terminal, is set to be electrically connected with described high-voltage interlocking loop; Handle, is set to be suitable for being pushed to disconnect the electrical connection between described device and high-voltage interlocking loop, thus disconnects described high voltage circuit; And coolant-temperature switch, be set in series be electrically connected with described low-voltage wiring terminal and described handle, described coolant-temperature switch is set to disconnect when the temperature of described device is greater than the threshold temperature preset, to disconnect the electrical connection between described device and described high-voltage interlocking loop, thus disconnect described high voltage circuit.
According to an embodiment of the present utility model, described coolant-temperature switch is set to the junction near described high-voltage connection terminal and described high voltage circuit.
According to an embodiment of the present utility model, described device also comprises the wire fuse being connected to described high voltage circuit, and described coolant-temperature switch is set near described wire fuse.
According to an embodiment of the present utility model, described coolant-temperature switch is can Resetting Switching, when the temperature of described manual maintenance make and break device drop to be equal to or less than the threshold temperature preset time, described coolant-temperature switch closes, and makes described manual maintenance make and break device and described high-voltage interlocking loop conducting.
According to an embodiment of the present utility model, described coolant-temperature switch is bimetal release.
According to an embodiment of the present utility model, described coolant-temperature switch is can not Resetting Switching, when the temperature of described manual maintenance make and break device is greater than the threshold temperature preset, the permanent disconnection of described coolant-temperature switch, makes described manual maintenance make and break device and described high-voltage interlocking loop permanently disconnect.
In a word, the manual maintenance make and break device of the vehicle that embodiment of the present utility model provides, provide a kind of quick, reliable and safe scheme, high-voltage interlocking loop can be directly disconnected when the temperature of manual maintenance make and break device is greater than the threshold temperature preset, and without the need to carrying out the extra programming disconnecting high-voltage interlocking loop to control unit, thus avoid vehicle Circuits System to be heated excessively, extend the service life of vehicle circuit unit and improve the efficiency of vehicle circuit, and improve the safety performance of vehicle; And structure is simple, is convenient to store, transport, install and keep in repair, provide significant conservation cost.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of specification sheets, and can become apparent, below especially exemplified by detailed description of the invention of the present utility model to allow above-mentioned and other objects, features and advantages of the present utility model.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and is not thought restriction of the present utility model.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the manual maintenance make and break device of vehicle in the utility model one embodiment.
Detailed description of the invention
Below with reference to accompanying drawings illustrative embodiments of the present disclosure is described in more detail.Although show illustrative embodiments of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the embodiment of setting forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.But achieve the utility model although should be appreciated that those skilled in the art can dream up clearly not describe in this manual or record and be included in the various structures in the utility model spirit, principle and scope.The all examples quoted from this specification sheets and conditional language are all for the object illustrated and instruct, principle prior art contributed to help reader understanding's utility model people and concept, and should be understood to be not limited to these the specifically example of citation and conditions.In addition, in order to be illustrated more clearly in, the detailed description for known devices, circuit and method is eliminated, not obscure description of the present utility model.Should be understood that unless stated otherwise, the feature in each embodiment described herein can combine mutually.
The quantity of each parts cited by it will be understood by those skilled in the art that in exemplary embodiment of the present utility model is only for illustrative purposes, and not should be understood to restriction of the present utility model.In the utility model, each parts can have other quantity, and do not depart from scope of the present utility model.
In this manual, the function of each unit can realize by using specialized hardware or the hardware performing process that can combine with suitable software.Such hardware or specialized hardware can comprise special IC (ASIC), various other circuit, various treaters etc.When being realized by treater, this function can be provided by single application specific processor, single share processor or multiple independently treater (wherein some may be shared).In addition, treater should not be understood to specially to refer to can the hardware of executive software, but impliedly can comprise and be not limited to digital signal processor (DSP) hardware, be used for the read-only memory (ROM) (ROM) of storing software, random access memory (RAM) and non-volatile memory apparatus.
According to the utility model, provide a kind of manual maintenance make and break device 100 of vehicle.
Fig. 1 shows a non-limiting and exemplary embodiment of the present utility model.To should be appreciated that in Fig. 1 that the annexation of represented each unit is only example, those skilled in the art can adopt other annexation completely, as long as each unit also can realize function of the present utility model under such annexation.
As shown in Figure 1, described vehicle can comprise high voltage circuit 201 and high-voltage interlocking loop 202.Alternatively, high voltage circuit 201 can be other parts of the high-pressure system to vehicle, as inverter 203 or motor 204, and the circuit of power supply.Alternatively, high-voltage interlocking loop 202 controls high voltage circuit 201 by the interlocking loop of low voltage, when high-voltage interlocking loop 202 detects that the somewhere of high voltage circuit 201 occurs connecting fault, high-voltage interlocking loop 202 can transmission of signal to the control unit for vehicle 205 of vehicle, then control unit for vehicle 205 controls high voltage circuit 201 and disconnects.
According to the utility model, the manual maintenance make and break device 100 of vehicle comprises high-voltage connection terminal 101, low-voltage wiring terminal 102, handle (not shown) and coolant-temperature switch 103.
Device 100 is electrically connected with described high voltage circuit 201 by described high-voltage connection terminal 101; Device 100 is electrically connected with described high-voltage interlocking loop 202 by described low-voltage wiring terminal 102; Handle is set in series be electrically connected with described low-voltage wiring terminal 102, and described handle is suitable for being pushed to disconnect the electrical connection between described device 100 and high-voltage interlocking loop 202, thus disconnects described high voltage circuit 201.Coolant-temperature switch 103 is set in series be electrically connected with described low-voltage wiring terminal 102 and described handle, described coolant-temperature switch 103 is set to disconnect when the temperature T of described device 100 is greater than the threshold temperature T0 preset, to disconnect the electrical connection between described device 100 and described high-voltage interlocking loop 202, thus disconnect described high voltage circuit 201.
In exemplary as shown in Figure 1, high-voltage connection terminal 101 is electrically connected with the described high voltage circuit 201 of vehicle; The first end 102A of low-voltage wiring terminal 102 is electrically connected with the described high-voltage interlocking loop 202 of vehicle.Handle can be connected to the second end 102B of described low-voltage wiring terminal, can promote handle, to make described low-voltage wiring terminal 102 disconnect from manual maintenance make and break device 100, thus disconnects the electrical connection between described device 100 and described high-voltage interlocking loop 202.Alternatively, handle can be connected to the first end 102A of low-voltage wiring terminal 102, low-voltage wiring terminal 102 is electrically connected with high-voltage interlocking loop 202 by handle, can promote handle, disconnects to make the electrical connection between described low-voltage wiring terminal 102 and described high-voltage interlocking loop 202.Alternatively, contact and mobile low-voltage wiring terminal 102 after hand propelled, low-voltage wiring terminal 102 and high-voltage interlocking loop 202 are disconnected.When there being people to promote handle, before the connection disconnecting manual maintenance make and break device 100 and high voltage circuit, first high-voltage interlocking loop 202 disconnects, and then send signal to the control unit (VCU) of vehicle, then control unit 205 is in response to this signal, controls the positive and negative contactless switch disconnecting high voltage circuit 201.
With reference to figure 1, coolant-temperature switch 103 can be arranged on the second end 102B of described low-voltage wiring terminal 102, and is in series electrically connected with described handle.Alternatively, coolant-temperature switch 103 can be arranged on the first end 102A of low-voltage wiring terminal 102 and in series be electrically connected with handle.Alternatively, coolant-temperature switch 103 can be arranged between handle and low-voltage wiring terminal 102.Alternatively, handle can be arranged between coolant-temperature switch 103 and low-voltage wiring terminal 102.Described coolant-temperature switch 103 is set to disconnect when the temperature T of described device is greater than the threshold temperature T0 preset, to disconnect the electrical connection between described device 100 and described high-voltage interlocking loop 202.When disconnecting manual maintenance make and break device 100, namely high-voltage interlocking loop 202 can detect, and then sends signal to control unit 205, then control unit 205 is in response to this signal, controls to disconnect high voltage circuit 201.
Alternatively, because user uses too frequent or misoperation, or the factors such as aging circuit, the threshold temperature T0 that the internal heat loss of the device 100 of vehicle makes its temperature T be greater than to preset, is elevated to unsafe level, such as 180 or 200 degrees Celsius, so coolant-temperature switch 103 disconnects, and device 100 and high-voltage interlocking loop 202 are disconnected, and control unit 205 opens the contactless switch of high voltage circuit 201 automatically, thus close high voltage circuit 201 immediately, to ensure the use safety of vehicle.
According to illustrative embodiments of the present utility model, described coolant-temperature switch 103 is set near the junction of described high-voltage connection terminal 101 with described high voltage circuit 201.In this way, coolant-temperature switch 103 can sense the temperature of high-voltage connection terminal 101 and high voltage circuit 201 junction delicately, the threshold temperature T0 preset is greater than once its temperature T sensed, coolant-temperature switch 103 disconnects, to disconnect the electrical connection between described device 100 and described high-voltage interlocking loop 202.When disconnecting manual maintenance make and break device 100, namely high-voltage interlocking loop 202 can detect, and then notice control unit 205, then control unit 205 controls to disconnect high voltage circuit 201, to ensure the use safety of vehicle.
According to illustrative embodiments of the present utility model, described device also comprises the wire fuse being connected to described high voltage circuit.Described coolant-temperature switch arranges 103 for close described wire fuse.Usually, it is the position that in manual maintenance make and break device, temperature is slightly high near wire fuse, in this way, coolant-temperature switch 103 can sense the temperature near wire fuse delicately, be greater than the threshold temperature T0 preset once its temperature T sensed, coolant-temperature switch 103 disconnects, and disconnects from described device 100 to make described low-voltage wiring terminal 102, thus the electrical connection disconnected between described device 100 and described high-voltage interlocking loop 202, to ensure the use safety of vehicle.Alternatively, coolant-temperature switch 103 can be integrated in high-voltage interlocking loop 202, or be integrated into other appropriate locations in any other manner.
According to illustrative embodiments of the present utility model, wherein said coolant-temperature switch 103 is can Resetting Switching, when the temperature T of described device drop to be equal to or less than the threshold temperature T0 preset time, described coolant-temperature switch 103 closes, and makes described device 100 and described high-voltage interlocking loop 202 conducting.Alternatively, coolant-temperature switch 103 can be automatic Resetting Switching, also can be manual Resetting Switching, and resetting coolant-temperature switch can repeated usage device 100, reduces cost.By the disconnection of coolant-temperature switch 103 and closed, can the temperature of control setup 100, make it remain under threshold temperature T0, with the service life of extension fixture 100 and the efficiency improving device 100.
According to illustrative embodiments of the present utility model, described coolant-temperature switch 103 is bimetal release.Bimetal release combines on two sides respectively with two kinds of alloys that thermal expansion coefficient is different, then by the aluminium lid surface conductive temperature of temperature switch, after bimetallic plate is heated, temperature traverse switch machine formula is moved, such as, low bulk layer uses Ni-Fe alloy, and high expanding layer uses Ni-Mn-Cu alloy, or Fe-Ni-Cr alloy, really, various material can be selected according to different coefficient of expansion.When temperature rising reaches design temperature, temperature switch bimetallic plate center can overturn by instantaneous time, thus switch is disconnected, and when temperature declines, can set back again to put makes switch close.
According to illustrative embodiments of the present utility model, described coolant-temperature switch 103 is can not Resetting Switching, and alternatively, coolant-temperature switch 103 can be heating fuse.When the temperature T of described device 100 is greater than the threshold temperature T preset
0time, the permanent disconnection of described coolant-temperature switch 103, makes described device 100 permanently disconnect with described high-voltage interlocking loop 202.Alternatively, vehicle maintenance centre reset apparatus 100 can be transferred to, make it normally work, or change whole device 100.In this way, described device 100 is permanently disconnected with described high-voltage interlocking loop 202, improves the safety of device 100.
In a word, the manual maintenance make and break device of the vehicle that embodiment of the present utility model provides, provide a kind of quick, reliable and safe scheme, high-voltage interlocking loop can be directly disconnected when the temperature of manual maintenance make and break device is greater than the threshold temperature preset, and without the need to carrying out the extra programming disconnecting high-voltage interlocking loop to control unit 205, thus avoid vehicle Circuits System to be heated excessively, extend the service life of vehicle circuit unit and improve the efficiency of vehicle circuit, and improve the safety performance of vehicle; And structure is simple, is convenient to store, transport, install and keep in repair, provide significant conservation cost.
In this manual, a large amount of details is described.But, should be appreciated that embodiment of the present utility model can be implemented when not having these details.In some embodiments, be not shown specifically known method, structure and technology, not make reader obscure the understanding of the principle to this specification sheets.
It will be understood by those skilled in the art that and can the module in the device in each embodiment adaptively be changed, and they are arranged in one or more devices different from this embodiment.Except the situation that feature or process are mutually repelled, any combination can be adopted, to method any disclosed in this specification sheets in steps or all modules of any device combine.Unless expressly stated otherwise, each feature disclosed in this specification sheets can by providing identical, equivalent or similar object alternative features replaces.
It should be noted that above-mentioned embodiment is described the utility model instead of limits the utility model, and those skilled in the art are not when departing from the scope of claims, various alternate embodiments can be designed.In detail in the claims, the sequence of feature does not also mean that any particular order of feature, and especially, in claim to a method each step order and do not mean that these steps must perform according to this order.On the contrary, these steps can perform with any order suitably.In detail in the claims, any reference marker being positioned at bracket should be understood as limitations on claims.Term " comprises " or " comprising " is not got rid of existence and do not arrange module in the claims or step.The term "a" or "an" be positioned at before module or step is not got rid of and be there is multiple such module or step.The use of term " first ", " second " and " the 3rd " etc. does not represent any order, can be title by these terminological interpretations.
Claims (6)
1. a manual maintenance make and break device for vehicle, described vehicle comprises high voltage circuit and high-voltage interlocking loop, it is characterized in that, described device comprises:
High-voltage connection terminal, is set to be electrically connected with described high voltage circuit;
Low-voltage wiring terminal, is set to be electrically connected with described high-voltage interlocking loop;
Handle, is set to be suitable for being pushed to disconnect the electrical connection between described device and high-voltage interlocking loop, thus disconnects described high voltage circuit; And
Coolant-temperature switch, be set in series be electrically connected with described low-voltage wiring terminal and described handle, described coolant-temperature switch is set to disconnect when the temperature of described device is greater than the threshold temperature preset, to disconnect the electrical connection between described device and described high-voltage interlocking loop, thus disconnect described high voltage circuit.
2. device as claimed in claim 1, is characterized in that: described coolant-temperature switch is set to the junction near described high-voltage connection terminal and described high voltage circuit.
3. device as claimed in claim 1, is characterized in that: described device also comprises the wire fuse being connected to described high voltage circuit, and described coolant-temperature switch is set near described wire fuse.
4. device as claimed in claim 1, wherein said coolant-temperature switch is can Resetting Switching, when the temperature of described device drop to be equal to or less than the threshold temperature preset time, described coolant-temperature switch closes, and makes described device and described high-voltage interlocking loop conducting.
5. device as claimed in claim 4, is characterized in that: described coolant-temperature switch is bimetal release.
6. device as claimed in claim 1, wherein said coolant-temperature switch is can not Resetting Switching, when the temperature of described device is greater than the threshold temperature preset, the permanent disconnection of described coolant-temperature switch, makes described device and described high-voltage interlocking loop permanently disconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420521175.2U CN204172704U (en) | 2014-09-11 | 2014-09-11 | The manual maintenance make and break device of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420521175.2U CN204172704U (en) | 2014-09-11 | 2014-09-11 | The manual maintenance make and break device of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204172704U true CN204172704U (en) | 2015-02-25 |
Family
ID=52561536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420521175.2U Active CN204172704U (en) | 2014-09-11 | 2014-09-11 | The manual maintenance make and break device of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204172704U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107472027A (en) * | 2016-06-08 | 2017-12-15 | 现代自动车株式会社 | Plug unit for vehicle |
| CN111071047A (en) * | 2019-12-25 | 2020-04-28 | 浙江合众新能源汽车有限公司 | Novel low-cost battery manual service switch |
| CN111546936A (en) * | 2020-04-21 | 2020-08-18 | 汉腾汽车有限公司 | Method for detecting change of contact resistance of battery pack manual Maintenance Switch (MSD) of new energy automobile |
-
2014
- 2014-09-11 CN CN201420521175.2U patent/CN204172704U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107472027A (en) * | 2016-06-08 | 2017-12-15 | 现代自动车株式会社 | Plug unit for vehicle |
| CN107472027B (en) * | 2016-06-08 | 2022-08-02 | 现代自动车株式会社 | Plug unit for vehicle |
| CN111071047A (en) * | 2019-12-25 | 2020-04-28 | 浙江合众新能源汽车有限公司 | Novel low-cost battery manual service switch |
| CN111071047B (en) * | 2019-12-25 | 2021-07-02 | 浙江合众新能源汽车有限公司 | Low-cost battery manual service switch |
| CN111546936A (en) * | 2020-04-21 | 2020-08-18 | 汉腾汽车有限公司 | Method for detecting change of contact resistance of battery pack manual Maintenance Switch (MSD) of new energy automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204172704U (en) | The manual maintenance make and break device of vehicle | |
| CN104192080A (en) | Circuit management system and method of vehicle | |
| DE102015107053A1 (en) | Connector part with a temperature-dependent switching device | |
| KR102385996B1 (en) | Busbar of battery pack of eco-friendly vehicles having fusing function and battery pack of eco-friendly vehicles using the same | |
| CN105337252A (en) | Earth leakage protection apparatus having self-checking function | |
| CN203415950U (en) | Electricity-using device input soft start resistor protection circuit | |
| CN109103708A (en) | A kind of plug is recycled the automatic fuse of overheating protection and its application method | |
| CN104934953A (en) | System with potential balancing component, particularly battery system | |
| CN102412094B (en) | Protective circuit | |
| CN204189712U (en) | A kind of circuit protection device | |
| CN204886165U (en) | Novel surge protector | |
| CN105336907B (en) | Electric connection structure in batteries of electric automobile group between battery case or battery modules | |
| CN105406443B (en) | Instant-heating electric water heater anti-dry detects protection circuit | |
| CN107800006A (en) | Modular system with multiple modules that can be electrically connected to each other | |
| CN208352644U (en) | A kind of recyclable automatic fuse of overheating protection of plug | |
| CN203434386U (en) | Safety socket with over current protection function | |
| CN210405782U (en) | Circuit board for electric cabinet charging and distributing | |
| CN104464783A (en) | Car-mounted memory card interface short-circuit protection device | |
| CN203165986U (en) | Short-circuit protection device of battery and battery component | |
| CN204991470U (en) | Condenser with high temperature protect function | |
| CN207938560U (en) | Wire assembly and starter | |
| CN205028815U (en) | A fuse for three -phase circuit protection | |
| CN204117924U (en) | A kind of open-type load switch | |
| CN201430431Y (en) | Novel surge protector | |
| CN202487510U (en) | Anti-lightning leakage breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Manual maintaining disconnection device for vehicle Effective date of registration: 20170104 Granted publication date: 20150225 Pledgee: American quantum Corporation|Wuhu Chery Automobile Investment Co., Ltd. Pledgor: Ooros Automotive Co., Ltd. Registration number: 2016990001207 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model |