CN204145293U - Electric motor car and DC converter thereof - Google Patents
Electric motor car and DC converter thereof Download PDFInfo
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- CN204145293U CN204145293U CN201420599028.7U CN201420599028U CN204145293U CN 204145293 U CN204145293 U CN 204145293U CN 201420599028 U CN201420599028 U CN 201420599028U CN 204145293 U CN204145293 U CN 204145293U
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- 239000004020 conductor Substances 0.000 claims description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 description 11
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 230000005611 electricity Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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Abstract
本实用新型公开了一种电动车的直流变换器，包括屏蔽壳体(2)，所述屏蔽壳体(2)内部设置有电器模块(3)，所述电器模块(3)的输出负极与所述屏蔽壳体(2)的导电部分导通连接，所述屏蔽壳体(2)外部固定有用于导通车身和所述屏蔽壳体(2)的导电部分的安装座(4)。由于输出负极通过导电部分直接与车身导通，而不是通过线束连接与其距离更远的搭铁点，从而不再需要穿过地板的搭铁线束。在节省了搭铁线束的同时，也节省了相应的过线护套和护板，简化了结构，降低了成本。本实用新型还公开了一种包括上述直流变换器的电动车。
The utility model discloses a DC converter of an electric vehicle, which comprises a shielding case (2), an electrical module (3) is arranged inside the shielding case (2), and the output negative electrode of the electrical module (3) is connected to the The conductive part of the shielding case (2) is conductively connected, and the outside of the shielding case (2) is fixed with a mounting seat (4) for connecting the vehicle body and the conductive part of the shielding case (2). Since the output negative pole is directly connected to the body through the conductive part, rather than through the wiring harness to connect it to a ground point which is farther away, the ground wire harness through the floor is no longer required. While saving the ground wire harness, it also saves the corresponding wire passing sheath and guard plate, which simplifies the structure and reduces the cost. The utility model also discloses an electric vehicle comprising the above-mentioned DC converter.
Description
技术领域technical field
本实用新型涉及电动车领域，特别是涉及一种电动车的直流变换器。此外，本实用新型还涉及一种具有上述直流变换器的电动车。The utility model relates to the field of electric vehicles, in particular to a DC converter of the electric vehicle. In addition, the utility model also relates to an electric vehicle with the above-mentioned DC converter.
背景技术Background technique
电能作为清洁能源，被广泛地应用到各个领域。电能相较于其他非清洁能源，有着使用效率高、储存方便和清洁环保等优点。由此，在车辆制造行业，电动车相对于汽油车有着更好的发展前景。电动车一般是由高压电池提供电能的，而工作时，需要将高压电池总成的直流高压转换成直流低压，这一过程一般是由直流变换器实现的。As a clean energy, electric energy is widely used in various fields. Compared with other non-clean energy sources, electric energy has the advantages of high efficiency, convenient storage, cleanness and environmental protection. Therefore, in the vehicle manufacturing industry, electric vehicles have better development prospects than gasoline vehicles. Electric vehicles are generally powered by high-voltage batteries. When working, it is necessary to convert the DC high voltage of the high-voltage battery assembly into DC low voltage. This process is generally realized by a DC converter.
直流变换器的电器输出接口分为正极和负极，其输出正极通过线束连接到整车低压蓄电池正极处。为了电动车的正常工作，需要根据搭铁接线制形成电动车的低压回路。具体方式为低压蓄电池的负极连接到车身搭铁点，直流变换器的电器输出负极通过线束同样连接到车身搭铁点，根据部件布置情况，也可以与低压蓄电池负极搭铁共用搭铁点。从而各部件导通连接，形成了回路。The electrical output interface of the DC converter is divided into a positive pole and a negative pole, and the positive pole of the output is connected to the positive pole of the low-voltage battery of the vehicle through a wiring harness. For the normal operation of the electric vehicle, it is necessary to form a low-voltage circuit of the electric vehicle according to the ground connection system. The specific method is that the negative pole of the low-voltage battery is connected to the ground point of the body, and the negative pole of the electrical output of the DC converter is also connected to the ground point of the body through the wiring harness. According to the layout of the components, it can also share the ground point with the negative ground of the low-voltage battery. Thereby, each component is conductively connected to form a loop.
现有技术中，直流变换器一般布置在机舱内部，而搭铁点基本都设置于车内的纵梁或横梁处，与直流变换器的距离较远。为了形成回路，需要较长的搭铁线束连接电器输出负极和车身搭铁点。并且由于两者所处的位置，搭铁线束需要穿过地板，进而需要设计相应的过线护套和护板等结构。从而造成整车结构复杂，增加了整车的成本。In the prior art, the DC converter is generally arranged inside the engine room, and the grounding points are basically arranged at the longitudinal beams or beams in the vehicle, which are far away from the DC converter. In order to form a loop, a long ground wire harness is required to connect the electrical output negative pole and the body ground point. And because of the positions of the two, the ground wire harness needs to pass through the floor, and then it is necessary to design corresponding structures such as wire passing sheaths and guard plates. Thereby causing the structure of the complete vehicle to be complex, increasing the cost of the complete vehicle.
因此，如何简化直流变换器与车身的连接结构，用更简单的方式形成回路，使成本降低是本领域技术人员目前需要解决的技术问题。Therefore, how to simplify the connection structure between the DC converter and the vehicle body, form a circuit in a simpler way, and reduce the cost is currently a technical problem to be solved by those skilled in the art.
实用新型内容Utility model content
本实用新型的目的是提供一种电动车的直流变换器，使其与车身的连接更简单。本实用新型的另一目的是提供一中包括上述直流变换器的电动车，简化整车结构，从而降低成本。The purpose of the utility model is to provide a DC converter of an electric vehicle, so that the connection with the vehicle body is simpler. Another object of the present invention is to provide an electric vehicle including the above-mentioned DC converter, which simplifies the structure of the whole vehicle and reduces the cost.
为解决上述技术问题，本实用新型提供了一种电动车的直流变换器，包括屏蔽壳体，所述屏蔽壳体内部设置有电器模块，所述电器模块的输出负极与所述屏蔽壳体的导电部分导通连接，所述屏蔽壳体外部固定有用于导通车身和所述屏蔽壳体的导电部分的安装座。In order to solve the above technical problems, the utility model provides a DC converter of an electric vehicle, which includes a shielding case, an electrical module is arranged inside the shielding case, and the output negative pole of the electrical module is connected to the shielding case. The conductive part is conductively connected, and a mount for conducting the conductive part of the vehicle body and the shielding case is fixed outside the shielding case.
优选地，所述电器模块的输出负极与所述屏蔽壳体的导电部分通过导体连接件导通连接。Preferably, the negative output pole of the electrical module is conductively connected to the conductive part of the shielding case through a conductor connector.
优选地，所述导体连接件为线缆。Preferably, the conductor connector is a cable.
优选地，所述导体连接件为铜排。Preferably, the conductor connector is a copper bar.
优选地，所述导体连接件的一端与所述电器模块的输出负极焊接，所述导体连接件的另一端与所述屏蔽壳体的导电部分焊接。Preferably, one end of the conductor connector is welded to the output cathode of the electrical module, and the other end of the conductor connector is welded to the conductive part of the shielding case.
优选地，所述导体连接件两端具有端子。Preferably, the conductor connector has terminals at both ends.
优选地，一个所述端子与所述电器模块的输出负极螺栓连接，另一个所述端子与所述屏蔽壳体的导电部分螺栓连接。Preferably, one of the terminals is bolted to the output negative pole of the electrical module, and the other terminal is bolted to the conductive part of the shielding case.
优选地，所所述屏蔽壳体的导电部分具有与其一体化的安装部分，所述电器模块的输出负极直接导通连接所述安装部分。Preferably, the conductive part of the shielding case has a mounting part integrated therewith, and the output negative pole of the electrical module is directly conductively connected to the mounting part.
本实用新型还提供一种电动车，包括车身以及安装在所述车身内的直流变换器，所述直流变换器具体为上述任一项所述的直流变换器。The utility model also provides an electric vehicle, including a vehicle body and a DC converter installed in the vehicle body, and the DC converter is specifically the DC converter described in any one of the above.
本实用新型所提供的直流变换器中电器模块的输出正极与整车低压蓄电池的正极导通，电器模块的输出负极与屏蔽壳体的导电部分导通，通过屏蔽壳体上的安装座导通导电部分与车身的金属部分，整车低压蓄电池的负极也导通车身的金属部分，从而形成了完整回路。由于输出负极通过屏蔽壳体的导电部分直接与车身的金属部分导通，而不是通过线束连接与其距离更远的搭铁点，从而不再需要穿过地板的搭铁线束。在节省了搭铁线束的同时，也节省了相应的过线护套和护板，简化了结构，降低了成本。In the DC converter provided by the utility model, the output positive pole of the electrical module is connected to the positive pole of the low-voltage storage battery of the whole vehicle, and the output negative pole of the electrical module is connected to the conductive part of the shielding case, and is connected through the mounting seat on the shielding case. The conductive part is connected to the metal part of the vehicle body, and the negative pole of the vehicle's low-voltage battery is also connected to the metal part of the vehicle body, thus forming a complete circuit. Since the output negative pole is directly connected to the metal part of the vehicle body through the conductive part of the shielding shell, instead of being connected to a ground point farther away from it through the wire harness, the ground wire harness passing through the floor is no longer required. While saving the ground wire harness, the corresponding wire-passing sheath and guard plate are also saved, which simplifies the structure and reduces the cost.
进一步地，在屏蔽壳体的导电部分设置一体化的导通部件，使其直接与输出负极导通，减少了回路的连接点，进而减少了故障的发生率。Furthermore, an integrated conduction part is provided on the conductive part of the shielding shell, so that it is directly conducted with the output negative pole, thereby reducing the connection points of the circuit, thereby reducing the occurrence rate of failures.
本实用新型提供的电动车具有上述直流变换器，由于上述直流变换器具有上述技术效果，上述电动车也应具有同样的技术效果，在此不再详细介绍。The electric vehicle provided by the utility model has the above-mentioned DC converter. Since the above-mentioned DC converter has the above-mentioned technical effect, the above-mentioned electric vehicle should also have the same technical effect, and will not be described in detail here.
附图说明Description of drawings
图1为本实用新型所提供的直流变换器的一种具体实施方式的结构示意图。Fig. 1 is a structural schematic diagram of a specific embodiment of a DC converter provided by the present invention.
具体实施方式Detailed ways
本实用新型的核心是提供一种电动车的直流变换器，使其与车身的连接更简单。本实用新型的另一核心是提供一中包括上述直流变换器的电动车，简化整车结构，从而降低成本。The core of the utility model is to provide a DC converter of an electric vehicle, so that the connection with the vehicle body is simpler. Another core of the utility model is to provide an electric vehicle including the above-mentioned DC converter, which simplifies the structure of the whole vehicle and reduces the cost.
为了使本技术领域的人员更好地理解本实用新型方案，下面结合附图和具体实施方式对本实用新型作进一步的详细说明。In order to enable those skilled in the art to better understand the solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
请参考图1，图1为本实用新型所提供的直流变换器的一种具体实施方式的结构示意图。Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a specific embodiment of a DC converter provided by the present invention.
在这一具体实施方式中，直流变换是通过电器模块3中各种元件所组成的电路实现的，故电器模块3是为了实现直流变换而普遍采用的实体部件。其具体工作过程是由输入接口输入高压电，将高压电转化为低压电后由输出接口输出。电器模块3具有正负两个输出接口。电器模块3的输出正极通过正极输出连接器1与整车低压蓄电池6的正极导通。电器模块3的输出负极与直流变换器的屏蔽壳体2的导电部分导通，导电部分与固定于屏蔽壳体2外侧的安装座4导通，安装座4直接导通车身的金属部分。同时，整车低压蓄电池6的负极也与车身的金属部分导通，从而形成了完整的电动车低压回路。In this specific embodiment, the DC conversion is realized through a circuit composed of various components in the electrical module 3 , so the electrical module 3 is a generally used physical component for realizing DC conversion. Its specific working process is to input high-voltage electricity through the input interface, convert the high-voltage electricity into low-voltage electricity, and then output it through the output interface. The electrical module 3 has two output interfaces, positive and negative. The output positive pole of the electrical module 3 is connected to the positive pole of the low-voltage battery 6 of the whole vehicle through the positive pole output connector 1 . The output negative pole of the electrical module 3 is connected to the conductive part of the shielding case 2 of the DC converter, and the conductive part is connected to the mounting seat 4 fixed on the outside of the shielding case 2, and the mounting seat 4 is directly connected to the metal part of the vehicle body. At the same time, the negative pole of the low-voltage battery 6 of the vehicle is also connected to the metal part of the vehicle body, thereby forming a complete low-voltage circuit of the electric vehicle.
在这一具体实施方式中，电气模块3的输出负极连接屏蔽壳体2的导电部分，屏蔽壳体2的导电部分连接安装座4，安装座4连接车身的金属部分，通过上述部件的两两导通，形成了负极回路。这一方式相当于直流变换器的输出负极直接与车身的金属部分导通，而不再通过搭铁线束连接搭铁点。节省了需要穿过地板的搭铁线束，进而也省略了相应的过线护套和护板，简化了整车结构，降低了成本。In this specific embodiment, the output negative pole of the electrical module 3 is connected to the conductive part of the shielding case 2, the conductive part of the shielding case 2 is connected to the mounting seat 4, and the mounting seat 4 is connected to the metal part of the vehicle body. conduction, forming a negative loop. This method is equivalent to that the output negative pole of the DC converter is directly connected to the metal part of the vehicle body, instead of being connected to the ground point through the ground wire harness. The ground wire harness that needs to go through the floor is saved, and the corresponding wire passing sheath and guard plate are also omitted, which simplifies the structure of the whole vehicle and reduces the cost.
本实用新型具体实施例所提供的直流变换器中电器模块3的输出负极与屏蔽壳体2的导电部分通过相应的导体连接件5实现导通。导体连接件5可为线缆，由于线缆可随意弯折的特性，使用线缆连接能够根据屏蔽壳体2内部其他部件的安装位置，随意弯折线缆，从而不会发生干涉。In the DC converter provided by the specific embodiment of the utility model, the output negative electrode of the electrical module 3 and the conductive part of the shielding case 2 are connected through the corresponding conductor connector 5 . The conductor connector 5 can be a cable. Due to the feature that the cable can be bent at will, the use of the cable connection can bend the cable at will according to the installation positions of other components inside the shielding shell 2, so that no interference will occur.
为了使屏蔽壳体2内部不发生干涉，只要是可弯折的导体连接件5均能实现本实用新型的目的，铜排具有电阻率低的优点，同时铜排也具有较大的弯折度，由此导体连接件5也可为铜排。In order to avoid interference inside the shielding shell 2, as long as the bendable conductor connector 5 can achieve the purpose of the utility model, the copper row has the advantage of low resistivity, and the copper row also has a large degree of bending , so that the conductor connector 5 can also be a copper bar.
根据实际情况，导体连接件5也可选择其他部件，如使用导电树脂导体。只要能够导通电器模块3的输出负极和屏蔽壳体2的导电部分，且不干涉其他部件，所选用的导体连接件5均在本实用新型的保护范围之内。According to actual conditions, the conductor connector 5 can also choose other components, such as using a conductive resin conductor. As long as the output negative pole of the electrical module 3 and the conductive part of the shielding case 2 can be conducted without interfering with other components, the selected conductor connector 5 is within the protection scope of the present invention.
在使用导体连接件5导通电器模块3的输出负极和屏蔽壳体2的导电部分时，导体连接件5的两端需要与上述的输出负极和导电部分稳定地导通连接。这一要求通过焊接的方式实现，在上述输出负极和导电部分上均设置有焊接点，导体连接件5的一端焊接于电器模块3的输出负极的焊接点，导电部分5的另一端焊接于屏蔽壳体2的导电部分的焊接点。从而实现稳定地导通连接。When using the conductor connector 5 to connect the negative output pole of the electrical module 3 and the conductive part of the shielding case 2, both ends of the conductor connector 5 need to be stably connected to the negative output pole and the conductive part. This requirement is achieved by welding. Welding points are provided on the above-mentioned output negative pole and the conductive part. One end of the conductor connector 5 is welded to the welding point of the output negative pole of the electrical module 3, and the other end of the conductive part 5 is welded to the shielding The soldering point of the conductive part of the housing 2. Thereby, a stable conduction connection is realized.
也可选用其他连接方式，如直接用压板压紧，只要能够稳定地导通连接相应的部分，均在本实用新型的保护范围之内。Also can choose other connection ways, as directly compressing with pressure plate, as long as it can conduct and connect corresponding parts stably, all within the scope of protection of the present utility model.
在上述具体实施方式中，导体连接件5是直接连接在相应部分上的，为了使连接更加稳定，进一步得到了本实用新型的另一种具体实施方式。这一实施方式的其他结构与上一具体实施方式基本相同，只是在导体连接件5的两端加装了端子，端子为具有通孔的导体片，在电器模块3的输出负极和屏蔽壳体2的导电部分相应位置设置有螺纹孔。使用螺栓穿过导体片上的通孔，将端子安装于螺纹孔所在的位置。这种方式稳定且便于拆卸，方便更换导体连接件5。In the above specific embodiment, the conductor connector 5 is directly connected to the corresponding part. In order to make the connection more stable, another specific embodiment of the present invention is further obtained. The other structures of this embodiment are basically the same as the previous specific embodiment, except that terminals are added to the two ends of the conductor connector 5, the terminals are conductor sheets with through holes, and the output negative pole of the electrical module 3 and the shielding shell Corresponding positions of the conductive part of 2 are provided with threaded holes. Install the terminal in place of the threaded hole using a bolt through the through hole in the conductor lug. This method is stable and easy to disassemble, and it is convenient to replace the conductor connector 5 .
在这一具体实施方式中，端子为具有通孔的导体片，也可选用其他方式，如端子为插头，在电器模块3的输出负极和屏蔽壳体2的导电部分相应位置设置插座。安装时，插头直接插入插座内，并使两者紧密固定，也能起到稳定连接且便于拆卸的作用。只要能够导通电器模块3的输出负极和屏蔽壳体2的导电部分，各种方式均在本实用新型的保护范围之内。In this specific embodiment, the terminal is a conductor sheet with a through hole, and other methods can also be used, such as the terminal is a plug, and a socket is provided at the corresponding position of the output negative pole of the electrical module 3 and the conductive part of the shielding case 2 . When installing, the plug is directly inserted into the socket, and the two are tightly fixed, which can also play a role of stable connection and easy disassembly. As long as the output negative pole of the electrical module 3 and the conductive part of the shielding case 2 can be connected, various methods are within the protection scope of the present invention.
在上述两个具体实施方式中，电器模块3的输出负极和屏蔽壳体2的导电部分之间是通过导体连接件5连接的，这种连接方式会出现两个连接点，连接点会增加装置的故障发生率。由此，进一步可以得到本实用新型的再一种具体实施方式。In the above two specific embodiments, the output negative pole of the electrical module 3 and the conductive part of the shielding case 2 are connected through the conductor connector 5, and there will be two connection points in this connection method, and the connection points will increase the number of devices. failure rate. Thus, another specific embodiment of the present utility model can be further obtained.
在这一实施方式中，使电器模块3的输出负极和屏蔽壳体2的导电部分直接接触。具体方式为在制造屏蔽壳体2时，在相应位置用模具一体化的方式使导电部分具有可与电器模块3的输出负极直接导通连接的结构。安装时，导电部分与输出负极直接连接并固定，形成负极回路。这一方式减少了回路中的连接点，进而减少了故障的发生率。In this embodiment, the negative output pole of the electrical module 3 is in direct contact with the conductive part of the shielding case 2 . The specific method is that when manufacturing the shielding case 2 , the conductive part has a structure that can be directly conductively connected with the output negative electrode of the electrical module 3 by integrating the mold at the corresponding position. During installation, the conductive part is directly connected and fixed to the output negative pole to form a negative pole loop. This approach reduces the number of connection points in the loop, thereby reducing the incidence of failure.
除了上述直流变换器，本实用新型的实施例还提供一种包括上述直流变换器的电动车，该电动车其他各部分的结构请参考现有技术，本文不再赘述。In addition to the above-mentioned DC converter, an embodiment of the present invention also provides an electric vehicle including the above-mentioned DC converter. For the structure of other parts of the electric vehicle, please refer to the prior art, which will not be repeated here.
以上对本实用新型所提供的电动车及其直流变换器进行了详细介绍。本文中应用了具体个例对本实用新型的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本实用新型的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本实用新型原理的前提下，还可以对本实用新型进行若干改进和修饰，这些改进和修饰也落入本实用新型权利要求的保护范围内。The electric vehicle and its DC converter provided by the utility model have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present utility model, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.
Claims (9)
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| CN201420599028.7U CN204145293U (en) | 2014-10-16 | 2014-10-16 | Electric motor car and DC converter thereof |
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| CN201420599028.7U CN204145293U (en) | 2014-10-16 | 2014-10-16 | Electric motor car and DC converter thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107980201A (en) * | 2017-02-13 | 2018-05-01 | 上海欣锐电控技术有限公司 | A kind of rectification circuit and DC-DC converter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107980201A (en) * | 2017-02-13 | 2018-05-01 | 上海欣锐电控技术有限公司 | A kind of rectification circuit and DC-DC converter |
| WO2018145314A1 (en) * | 2017-02-13 | 2018-08-16 | 上海欣锐电控技术有限公司 | Rectifying circuit and direct current/direct current converter |
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Assignee: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Assignor: Chongqing Changan Automobile Co.,Ltd.|CHONGQING CHANG'AN NEW ENERGY AUTOMOBILE Co.,Ltd. Contract record no.: 2018500000022 Denomination of utility model: Electric car and direct-current converter thereof Granted publication date: 20150204 License type: Exclusive License Record date: 20181130 |
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Address after: No. 588 Shuguang Road, Longxing Town, Yubei District, Chongqing, 401135 Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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