CN217508316U - Charging and discharging circuit - Google Patents
Charging and discharging circuit Download PDFInfo
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- CN217508316U CN217508316U CN202220968073.XU CN202220968073U CN217508316U CN 217508316 U CN217508316 U CN 217508316U CN 202220968073 U CN202220968073 U CN 202220968073U CN 217508316 U CN217508316 U CN 217508316U
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- 238000007599 discharging Methods 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The utility model discloses a charge-discharge circuit relates to the technical field of charging, charge-discharge circuit includes: the charging system comprises battery equipment, electric equipment, charging equipment, a first switch assembly, a second switch assembly, a third switch assembly and a fourth switch assembly; the battery equipment, the first switch assembly, the electric equipment and the second switch assembly are sequentially connected to form a charging circuit; the battery equipment, the third switch assembly, the charging equipment and the fourth switch assembly are sequentially connected to form a discharging circuit; the first switch assembly, the second switch assembly, the third switch assembly and the fourth switch assembly all comprise a plurality of relays connected in parallel. The utility model discloses a plurality of relays of first switch module, second switch module, third switch module and fourth switch module can be miniwatt relay, and the parallelly connected use of miniwatt relay replaces high-power relay, and is small, and is with low costs.
Description
Technical Field
The utility model relates to a technical field that charges, in particular to charging and discharging circuit.
Background
With the rapid development of new energy industries, new energy can provide power for more and more devices, for example, a battery device can be used as a power source to provide power for new energy automobiles. The battery device is charged and discharged many times during use.
In the prior art, a relay is usually arranged in a charging and discharging circuit, and charging and discharging of battery equipment in the charging and discharging circuit are controlled by controlling the on and off of the relay. But more and more power consumption equipment is promoting the demand to the electric quantity step by step, and the power consumption demand of heavy current becomes more and more urgent, and the relay in the charge and discharge circuit all needs to use bulky, heavy, the high-power relay of price, leads to the whole bulky of charge and discharge circuit, and is with high costs.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a charge-discharge circuit to current charge-discharge circuit need use high-power relay in solving the correlation technique, whole bulky, with high costs technical problem.
The embodiment of the utility model provides a charge-discharge circuit, charge-discharge circuit includes: the charging system comprises battery equipment, electric equipment, charging equipment, a first switch assembly, a second switch assembly, a third switch assembly and a fourth switch assembly;
the battery equipment, the first switch assembly, the electric equipment and the second switch assembly are sequentially connected to form a charging circuit;
the battery equipment, the third switch assembly, the charging equipment and the fourth switch assembly are sequentially connected to form a discharging circuit;
the first switch assembly, the second switch assembly, the third switch assembly and the fourth switch assembly all comprise a plurality of relays connected in parallel.
In some embodiments, the first switch assembly, the second switch assembly, the third switch assembly and the fourth switch assembly are respectively provided with a first control device, a second control device, a third control device and a fourth control device, and the first control device, the second control device, the third control device and the fourth control device are respectively used for controlling the plurality of relays connected in parallel in the corresponding switch assembly to be switched on or switched off.
In some embodiments, the charging and discharging circuit further comprises a controller;
the controller is used for controlling the first control device, the second control device, the third control device or the fourth control device to be switched on or switched off so as to enable the plurality of relays connected in parallel of the corresponding switch assembly to be switched on or switched off.
In some embodiments, the charging and discharging circuit further comprises a pre-discharge resistor and a pre-discharge relay;
the first end after pre-discharge resistance and pre-discharge relay establish ties with battery equipment connects, the second end after pre-discharge resistance and pre-discharge relay establish ties with consumer connects, the controller is used for controlling pre-discharge relay switches on, so that battery equipment to consumer discharges in advance.
In some embodiments, when the battery device discharges to the electrical device, the controller is configured to control the pre-discharge relay to be turned on, and after a preset time is delayed, the controller is further configured to control the first control device and the third control device to be turned on, so that the plurality of parallel relays of the first switching component and the third switching component are turned on.
In some embodiments, the first control device, the second control device, the third control device and the fourth control device are all MOS transistors.
In some embodiments, the charging and discharging circuit further comprises a plurality of fuse elements;
the first switch assembly includes a plurality of first relays and the third switch assembly includes a plurality of third relays;
the first end of one safety element is connected with the battery equipment, the second end of the safety element is connected with the first ends of one first relay and one third relay, the second end of the first relay is connected with the electric equipment, and the second end of the third relay is connected with the charging equipment.
In some embodiments, the charging and discharging circuit further comprises a current detection device;
the second switch assembly comprises a plurality of second relays and the fourth switch assembly comprises a plurality of fourth relays;
the first end of the current detection device is connected with the first ends of the second relays and the fourth relays, the second ends of the second relays are connected with the electric equipment, and the second ends of the fourth relays are connected with the charging equipment.
In some embodiments, the first relay, the second relay, the third relay, and the fourth relay are all electromagnetic relays.
In some embodiments, the fuse element is a tubular fuse.
The utility model provides a beneficial effect that technical scheme brought includes:
the embodiment of the utility model provides a charge-discharge circuit, it is provided with first switch module, second switch module, third switch module and fourth switch module, just first switch module, second switch module, third switch module and fourth switch module all include a plurality of parallelly connected relays, and a plurality of relays can be the miniwatt relay, and parallelly connected use replaces high-power relay, and is small, with low costs.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of a charging and discharging circuit according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a first switch assembly provided in an embodiment of the present invention;
in the figure: 1. a battery device; 2. an electricity-consuming device; 3. a charging device; 4. a first switch assembly; 401. a first relay; 402. a first control device; 5. a second switch assembly; 501. a second relay; 6. a third switch assembly; 601. a third relay; 7. a fourth switching component; 701. a fourth relay; 8. a pre-discharge resistor; 9. a pre-discharge relay; 10. a fuse element; 11. a current sensing device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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.
The embodiment of the utility model provides a charging and discharging circuit, it can solve current charging and discharging circuit and need use high-power relay, whole bulky, with high costs technical problem.
Referring to fig. 1, an embodiment of the present invention provides a charging and discharging circuit, including: the charging system comprises a battery device 1, a powered device 2, a charging device 3, a first switch assembly 4, a second switch assembly 5, a third switch assembly 6 and a fourth switch assembly 7.
The battery device 1, the first switch assembly 4, the electric device 2 and the second switch assembly 5 are connected in sequence to form a charging circuit. The battery device 1, the third switch component 6, the charging device 3 and the fourth switch component 7 are sequentially connected to form a discharging circuit. The first, second, third and fourth switching assemblies 4, 5, 6 and 7 each comprise a plurality of relays connected in parallel.
The embodiment of the utility model provides a charge-discharge circuit, it is provided with first switch module 4, second switch module 5, third switch module 6 and fourth switch module 7, just first switch module 4, second switch module 5, third switch module 6 and fourth switch module 7 all include a plurality of parallelly connected relays, and although the circuit is comparatively complicated, but a plurality of relays can be the miniwatt relay, and a plurality of miniwatt relays parallelly connected use replaces high-power relay, and is small, with low costs. The number of the relays connected in parallel in each switch assembly is not limited, for example, 2 relays, 3 relays, 4 relays, 5 relays and the like can be connected in parallel in each switch assembly, and the relays can be specifically set according to actual requirements.
As an optional implementation manner, in an embodiment of the present invention, the first switch component 4, the second switch component 5, the third switch component 6, and the fourth switch component 7 are respectively provided with a first control device, a second control device, a third control device, and a fourth control device, and the first control device, the second control device, the third control device, and the fourth control device are respectively used for controlling the on or off of a plurality of parallel relays in the first switch component 4, the second switch component 5, the third switch component 6, and the fourth switch component 7.
For example, in the embodiment of the present application, a first switch assembly is taken as an example for description, where structures of a second switch assembly, a third switch assembly, and a fourth switch assembly are similar to those of the first switch assembly, and details of the embodiment of the present application are not repeated. Referring to fig. 2, the first switch assembly 4 is provided with a first control device 402, the plurality of parallel first relays 401 of the first switch assembly 4 are all controlled by the first control device 402, and the control of the first control device 402 can synchronize the plurality of parallel relays of the first switch assembly 4 when the relays are turned on or off. Similarly, the second control device, the third control device and the fourth control device of the second switch component 5, the third switch component 6 and the fourth switch component 7 can simultaneously turn on or off the plurality of parallel relays of the corresponding switch components, and are not described again.
Optionally, the first control device, the second control device, the third control device and the fourth control device may be MOS transistors, and the MOS transistors are convenient in control mode, small in size, light in weight, long in service life, high in input resistance, low in noise, good in thermal stability, strong in anti-interference capability, and low in power consumption. The embodiments of the present application are not limited to this, and may also be implemented by software control or other control devices, for example.
As an optional implementation manner, in an embodiment of the present invention, the charging and discharging circuit further includes a controller.
The controller is used for controlling the connection or disconnection of the first control device, the second control device, the third control device or the fourth control device so as to enable the plurality of relays connected in parallel of the corresponding switch assembly to be connected or disconnected, and the control is simple and convenient.
As an alternative embodiment, in an embodiment of the present invention, referring to fig. 1, the charging and discharging circuit further includes a pre-discharging resistor 8 and a pre-discharging relay 9.
The first end after pre-discharge resistance 8 and pre-discharge relay 9 establish ties with battery equipment 1 connects, the second end with consumer 2 connects, the controller is used for controlling pre-discharge relay 9 switches on, so that battery equipment 1 to consumer 2 discharges in advance.
Further, when the battery device 1 discharges to the electric device 2, the controller controls the pre-discharge relay 9 to be turned on, and after delaying the preset time, the controller controls the first control device and the third control device to be turned on, so that the plurality of parallel relays of the first switch component and the third switch component are turned on, and a large instantaneous current is prevented from occurring when the plurality of parallel relays of the first switch component and the third switch component are turned on.
As an alternative embodiment, in an embodiment, as shown in fig. 1, the charging and discharging circuit further includes a plurality of fuse elements 10.
The first switch assembly 4 includes a plurality of first relays 401, and the third switch assembly 6 includes a plurality of third relays 601. A first end of one of the safety elements 10 is connected to the battery device 1, a second end is connected to a first end of one of the first relays 401 and a first end of one of the third relays 601, a second end of the first relay 401 is connected to the electrical consumer 2, and a second end of the third relay 601 is connected to the charging device 3. Optionally, the fuse element is a tubular fuse, so that the cost is low and the use is convenient.
As an optional implementation manner, in an embodiment of the present invention, referring to fig. 1, the charging and discharging circuit further includes a current detection device 11.
The second switching assembly 5 includes a plurality of second relays 501, and the fourth switching assembly 7 includes a plurality of fourth relays 701. The first end of the current detection device 11 is connected to the plurality of second relays 501 and the plurality of first ends of the fourth relays 701, the plurality of second ends of the second relays 501 are connected to the electric equipment 2, and the plurality of second ends of the fourth relays 701 are connected to the charging device 3. The current detection device 11 can monitor the current in real time, and prevent the current from being too high to cause risks.
As an alternative embodiment, in an embodiment of the present invention, the first relay 401, the second relay 501, the third relay 601, and the fourth relay 701 are all electromagnetic relays. The electromagnetic relay is easy to control, good in temperature resistance, good in pressure resistance, low in price and low in use cost.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It is noted that, in the present invention, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A charging and discharging circuit, comprising: the charging system comprises battery equipment (1), electric equipment (2), charging equipment (3), a first switch component (4), a second switch component (5), a third switch component (6) and a fourth switch component (7);
the battery equipment (1), the first switch component (4), the electric equipment (2) and the second switch component (5) are sequentially connected to form a charging circuit;
the battery equipment (1), the third switch component (6), the charging equipment (3) and the fourth switch component (7) are sequentially connected to form a discharging circuit;
the first switch assembly (4), the second switch assembly (5), the third switch assembly (6) and the fourth switch assembly (7) all comprise a plurality of relays connected in parallel.
2. The charging and discharging circuit according to claim 1, wherein:
the first switch assembly (4), the second switch assembly (5), the third switch assembly (6) and the fourth switch assembly (7) are respectively provided with a first control device, a second control device, a third control device and a fourth control device, and the first control device, the second control device, the third control device and the fourth control device are respectively used for controlling a plurality of relays connected in parallel in the corresponding switch assemblies to be connected or disconnected.
3. The charge and discharge circuit of claim 2, further comprising a controller;
the controller is used for controlling the first control device, the second control device, the third control device or the fourth control device to be switched on or switched off so as to enable the plurality of relays connected in parallel of the corresponding switch assembly to be switched on or switched off.
4. The charging and discharging circuit according to claim 3, characterized in that it further comprises a pre-discharge resistor (8) and a pre-discharge relay (9);
first end after predischarge resistance (8) and predischarge relay (9) establish ties with battery equipment (1) is connected, second end after predischarge resistance (8) and predischarge relay (9) establish ties with consumer (2) is connected, the controller is used for control predischarge relay (9) switch on, so that battery equipment (1) to consumer (2) predischarge.
5. The charging and discharging circuit according to claim 4, wherein:
when the battery equipment (1) discharges to the electric equipment (2), the controller is used for controlling the pre-discharge relay (9) to be conducted and delaying for preset time, and then the controller is also used for controlling the first control device and the third control device to be conducted so that a plurality of relays connected in parallel of the first switch component (4) and the third switch component (6) are conducted.
6. The charge and discharge circuit of claim 2, wherein:
the first control device, the second control device, the third control device and the fourth control device are all MOS tubes.
7. A charging and discharging circuit according to claim 1, characterised in that it further comprises a plurality of fuse elements (10);
the first switching assembly (4) comprises a plurality of first relays (401), the third switching assembly (6) comprises a plurality of third relays (601);
a first end of the fuse element (10) is connected to the battery device (1), a second end of the fuse element is connected to a first end of the first relay (401) and a first end of the third relay (601), a second end of the first relay (401) is connected to the consumer (2), and a second end of the third relay (601) is connected to the charging device (3).
8. The charging and discharging circuit according to claim 7, characterized in that it further comprises a current detection device (11);
the second switching assembly (5) comprises a plurality of second relays (501) and the fourth switching assembly (7) comprises a plurality of fourth relays (701);
the first end of the current detection device (11) is connected with the first ends of the second relay (501) and the fourth relay (701), the second end of the second relay (501) is connected with the electric equipment (2), and the second end of the fourth relay (701) is connected with the charging device (3).
9. The charge and discharge circuit of claim 8, wherein:
the first relay (401), the second relay (501), the third relay (601) and the fourth relay (701) are all electromagnetic relays.
10. The charging and discharging circuit according to claim 7, wherein: the fuse element (10) is a tubular fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220968073.XU CN217508316U (en) | 2022-04-21 | 2022-04-21 | Charging and discharging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220968073.XU CN217508316U (en) | 2022-04-21 | 2022-04-21 | Charging and discharging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217508316U true CN217508316U (en) | 2022-09-27 |
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ID=83349488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220968073.XU Active CN217508316U (en) | 2022-04-21 | 2022-04-21 | Charging and discharging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217508316U (en) |
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2022
- 2022-04-21 CN CN202220968073.XU patent/CN217508316U/en active Active
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