Protective components

Abstract

This application relates to the field of battery manufacturing technology and provides a protective assembly. The protective assembly includes a housing and a protective cover detachably mounted on the housing. The housing has mounting slots, and the protective cover can seal the mounting slots. The mounting slots include a central mounting slot for mounting a high-voltage DC relay and a first side mounting slot and a second side mounting slot located on either side of the central mounting slot for mounting conductive busbars. This protective assembly provides high-voltage protection for the stationary contact terminals and conductive busbars of the high-voltage DC relay, reducing the risk of electric shock to personnel.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a protective component. Background Technology

[0002] Currently, most new energy vehicles use electricity as their power source, employing high-voltage circuits for vehicle drive, energy management, and functional expansion. These high-voltage circuits utilize high-voltage battery packs as their energy source, converting electrical energy into driving power and functional output. High-voltage DC relays are commonly used in these circuits to control the on / off switching of the battery pack's energy output. However, the high voltage of these battery packs poses a risk of electric shock to workers during production and maintenance. Utility Model Content

[0003] In view of this, this application aims to provide a protective component for high-voltage protection of high-voltage DC relays, thereby reducing the risk of electric shock to personnel.

[0004] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0005] A protective component for use on a high-voltage DC relay includes a housing with a mounting slot and a protective cover detachably disposed on the housing for sealing the mounting slot.

[0006] The mounting slot includes a central mounting slot extending through the bottom of the housing, and a first side mounting slot and a second side mounting slot respectively located on both sides of the central mounting slot. The central mounting slot is used to connect to one end of the high-voltage DC relay with a stationary contact terminal. The first side mounting slot and the second side mounting slot are respectively used to install each conductive busbar in the high-voltage DC relay.

[0007] Furthermore, both the first side mounting groove and the second side mounting groove are arranged along the width direction of the box body, and the first side mounting groove and the second side mounting groove are staggered in the length direction of the box body.

[0008] Furthermore, the box body is provided with a first base located in the first side mounting groove and a second base located in the second side mounting groove, and both the first base and the second base are fitted with nuts, each of which is used to connect to the corresponding conductive busbar.

[0009] Furthermore, the side wall of the box body is provided with an opening corresponding to the first side mounting groove and / or the second side mounting groove, and a baffle located in the opening. The baffle is connected to the box body by a breakable connector, and the breakable connector can be disconnected from either the baffle or the box body under the action of external force.

[0010] Furthermore, along the width direction of the box body, the box body has a first sidewall corresponding to the first side mounting groove and a second sidewall corresponding to the second side mounting groove; along the length direction of the box body, the box body has a third sidewall and a fourth sidewall corresponding to the first side mounting groove, and a fifth sidewall and a second sidewall corresponding to the second side mounting groove; at least one of the first sidewall, the third sidewall and the fourth sidewall is provided with the opening and the baffle, and / or at least one of the second sidewall, the fifth sidewall and the second sidewall is provided with the opening and the baffle.

[0011] Furthermore, the protective cover and the box body are snap-fitted together.

[0012] Furthermore, the box body is provided with snap-fit ​​protrusions, and the protective cover is provided with a snap-fit ​​groove, and the snap-fit ​​protrusions snap into the snap-fit ​​grooves.

[0013] Furthermore, the protective cover is provided with a snap-fit ​​arm extending toward the box body, and the snap-fit ​​groove is provided on the snap-fit ​​arm; and / or, the snap-fit ​​protrusions are a plurality of ones arranged at intervals along the circumference of the box body, and the snap-fit ​​grooves are a plurality of ones corresponding one-to-one with each of the snap-fit ​​protrusions.

[0014] Furthermore, the high-voltage DC relay is interference-fitted with the housing; and / or, the housing is provided with a slot corresponding to the first side mounting slot, and along the height direction of the housing, the slot extends upward from the bottom of the housing to at least the middle of the housing.

[0015] Furthermore, the protective cover is provided with a wire harness through hole and a plug located in the wire harness through hole, and the plug is detachably connected to the protective cover.

[0016] Compared with the prior art, this application has the following advantages:

[0017] (1) The protective component described in this application can form a shielding space by setting a housing with a mounting groove and a protective cover that can be detachably set on the housing to cover the connection between the high voltage DC relay and the conductive busbar. By setting the central mounting groove, the first side mounting groove and the second side mounting groove, the stationary contact terminal of the high voltage DC relay is assembled with each conductive busbar in separate areas, which facilitates the installation and connection between the conductive busbar and the stationary contact terminal, and is conducive to forming high voltage protection for the high voltage DC connector and the conductive busbar, which helps to reduce the risk of electric shock to personnel.

[0018] (2) By arranging the first side mounting groove and the second side mounting groove along the width direction of the box and staggering them along the length direction of the box, the arrangement is reasonable, the structure is simple, and it is conducive to the arrangement and installation of each conductive bar, which is helpful for design implementation.

[0019] (3) The first base, the second base and the nut make it easy to realize the screw connection between each conductor and the base, which makes it easy to assemble the high voltage DC relay on the base and helps the design and implementation.

[0020] (4) The opening facilitates the connection between each conductive busbar and the external conductive busbar. The baffle facilitates the sealing of the side wall of the box that does not need to be connected to the external conductive busbar. The detachable connector facilitates the arrangement of the baffle on the box. The structure is simple and easy to design and implement.

[0021] (5) By setting openings and baffles on the first sidewall, second sidewall, third sidewall, fourth sidewall and fifth sidewall, it is convenient to realize the connection requirements of external conductive busbars in different directions. By setting openings and baffles on multiple sidewalls, it is convenient to realize the connection requirements of multiple external conductive busbars, which is conducive to design and implementation.

[0022] (6) This makes the protective cover and the box body interlocked, which facilitates the disassembly and installation of the protective cover. It is convenient to disassemble and assemble, which is conducive to design and implementation.

[0023] (7) The combination of the snap-fit ​​protrusion and the snap-fit ​​groove facilitates the snap-fit ​​connection between the protective cover and the box body. The structure is simple and easy to design and implement.

[0024] (8) The protective cover is provided with a snap-fit ​​arm and the snap-fit ​​groove is provided on the snap-fit ​​arm. The structure is simple and easy to process. The snap-fit ​​protrusion and the snap-fit ​​groove are all one-to-one correspondences, which improves the connection stability of the snap-fit ​​connection and helps the design and implementation.

[0025] (9) The high voltage DC relay is interference-fitted with the box, which facilitates assembly and helps improve the connection stability between the high voltage DC relay and the box. The slot on the box facilitates the insertion of the relay and forms a snap-fit ​​effect with the relay to a certain extent, which helps improve the connection effect between the high voltage DC relay and the box and facilitates design and implementation.

[0026] (10) The wiring harness through-hole and plug are designed to facilitate the connection between the external wiring harness and each conductive busbar. The plug is detachable, which makes it easy to install and remove the plug. The structure is simple and easy to design and implement. Attached Figure Description

[0027] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 This is a schematic diagram of the protective structure described in the embodiments of this application from a first angle;

[0029] Figure 2 for Figure 1 Enlarged view of point A;

[0030] Figure 3 This is a schematic diagram of the protective structure described in the embodiments of this application from a second angle;

[0031] Figure 4 This is an exploded view of the protective structure described in the embodiments of this application;

[0032] Figure 5 for Figure 4 Enlarged view of point B;

[0033] Figure 6 This is a schematic diagram of the protective structure described in this application assembled on a high-voltage DC relay;

[0034] Figure 7 This is an exploded view of the protective structure described in the embodiments of this application assembled on a high-voltage DC relay;

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Box body;

[0037] 101. Baffle; 102. Breakable connector; 103. First sidewall; 104. Second sidewall; 105. Third sidewall; 106. Fourth sidewall; 107. Fifth sidewall; 108. Sixth sidewall; 109. Snap-fit ​​protrusion; 1010. Groove;

[0038] 2. Protective cover;

[0039] 201. Card slot; 202. Card arm; 203. End cap;

[0040] 3. Mounting slot;

[0041] 301. Central mounting slot; 302. First side mounting slot; 303. Second side mounting slot; 304. First base; 305. Second base;

[0042] 4. High-voltage DC relay;

[0043] 401. Stationary contact terminal; 402. Conductive busbar; 403. Partition plate. Detailed Implementation

[0044] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0046] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0048] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0050] An embodiment of the first aspect of this application provides a protective component applied to a high-voltage DC relay 4, mainly used for high-voltage protection of the high-voltage DC relay 4. Furthermore, the protective component in this embodiment, through its innovative structural design, can reduce the risk of electric shock to personnel during installation and maintenance, thereby improving the safety of personnel during installation and maintenance.

[0051] In related technologies, a high-voltage DC relay 4 generally includes a main body, two stationary contact terminals 401 (positive and negative) located on the same end of the main body, and a partition 403 located between the two stationary contact terminals 401. The two stationary contact terminals 401 are respectively connected to external electrical components through a busbar 402.

[0052] With the development of new energy vehicles, the number of electric vehicles and the demand for them are gradually increasing. In the production and maintenance of electric vehicles, the high-voltage DC relay 4 is a key component in the high-voltage circuit of electric vehicles and is easily accessible to production and maintenance personnel.

[0053] At this time, the high-voltage DC relay 4 is generally electrically connected to the high-voltage battery pack through the busbar 402 to control the power output of the battery pack. During production and maintenance, if production and maintenance personnel operate improperly or accidentally touch the busbar 402, it can easily cause electric shock accidents, leading to safety problems in production and maintenance, which is detrimental to the production and maintenance of electric vehicles.

[0054] In view of this, in order to overcome the shortcomings of related technologies, the protective component in this embodiment combines... Figures 1 to 7 As shown, the overall design includes a box body 1 and a protective cover 2.

[0055] The housing 1 is provided with a mounting groove 3, including a central mounting groove 301 that runs through the bottom of the housing 1, and a first side mounting groove 302 and a second side mounting groove 303 respectively disposed on both sides of the central mounting groove 301. The central mounting groove 301 is used to connect to one end of the high voltage relay with a stationary contact terminal 401. The first side mounting groove 302 and the second side mounting groove 303 are respectively used to install each conductive busbar 402 in the high voltage DC relay 4.

[0056] Therefore, by providing a housing 1 with mounting groove 3 and a protective cover 2 detachably mounted on the housing 1, a shielding space can be formed to cover the connection between the high-voltage DC relay 4 and the conductive bus 402. By providing a central mounting groove 301, a first side mounting groove 302 and a second side mounting groove 303, the stationary contact terminal 401 of the high-voltage DC relay 4 and the conductive bus 402 can be assembled respectively, which facilitates installation and connection between the conductive bus 402 and the stationary contact terminal 401, and helps to form high-voltage protection for the high-voltage DC connector and the conductive bus 402, thus helping to reduce the risk of electric shock to personnel.

[0057] Based on the above overall introduction, specifically, as an exemplary structural form, for the box 1 in this embodiment, it is composed of... Figure 1 , Figure 3 , Figure 4 and Figure 7As shown, the first side mounting groove 302 and the second side mounting groove 303 can be arranged along the width direction of the box body 1, and the first side mounting groove 302 and the second side mounting groove 303 are staggered in the length direction of the box body 1.

[0058] The first side mounting groove 302 and the second side mounting groove 303 are respectively used for the mounting base of the high voltage relay with the stationary contact terminal 401 and the conductive bus 402. By arranging the first side mounting groove 302 and the second side mounting groove 303 along the width direction of the box 1 and staggering them in the length direction of the box 1, the arrangement is reasonable, the structure is simple, and it is conducive to the arrangement and installation of each conductive bus 402, which is helpful for design implementation.

[0059] It is worth mentioning that, along the height direction of the box body 1, the projected outlines of the central mounting groove 301, the first side mounting groove 302, and the second side mounting groove 303 are all rectangular. The projected area of ​​the first side mounting groove 302 and the second side mounting groove 303 is smaller than the projected area of ​​the central mounting groove 301. When the high-voltage DC relay 4 is installed in the central mounting groove 301, the partition 403 on the high-voltage DC relay 4, together with the first side mounting groove 302 and the second side mounting groove 303, separates the two stationary contact terminals 401 of the high-voltage DC relay into two areas. The conductive busbars 402 in each area are connected to the corresponding stationary contact terminals 401, and they do not affect each other.

[0060] Combination Figure 1 , Figure 3 and Figure 4 As shown, in some exemplary embodiments, this embodiment may, for example, have a first base 304 located in a first side mounting groove 302 and a second base 305 located in a second side mounting groove 303 in the housing 1. Nuts are embedded in both the first base 304 and the second base 305, and each nut is used to connect to a corresponding conductive busbar 402. The arrangement of the first base 304, the second base 305, and the nuts facilitates the screw connection between each conductive busbar 402 and the base, thereby facilitating the assembly of the high-voltage DC relay 4 onto the base and aiding in design and implementation.

[0061] It is worth noting that, in addition to embedding the nuts in the first base 304 and the second base 305, the nuts on the first base 304 and the second base 305 can be adjusted according to the different connection methods of the conductive busbar 402 of the high-voltage DC relay 4. This adjustment is only necessary to meet the installation and arrangement requirements of the conductive busbar 402 in the high-voltage DC relay 4 and ensure the reliable connection between the conductive busbar 402 and the high-voltage DC relay 4. Furthermore, when the conductive busbar 402 is screwed to the first base 304 and the second base 305, the first side mounting groove 302 and the second side mounting groove 303 prevent the conductive busbar 402 from rotating, facilitating the connection between the conductive busbar 402 and the high-voltage DC relay 4.

[0062] In some of the exemplary implementations, combined with Figure 1 , Figure 4 and Figure 5 As shown, the side wall of the box body 1 may be provided with openings corresponding to the first side mounting groove 302 and the second side mounting groove 303, and a baffle 101 located in the opening.

[0063] The baffle 101 is connected to the box body 1 via a breakable connector 102. The breakable connector 102 can be disconnected under external force to separate the baffle 101 from the box body 1. The above-mentioned opening, baffle 101 and breakable connector 102 are designed to facilitate the connection between each conductive bar 402 and the external conductive bar 402. The baffle 101 is designed to block the side wall of the box body 1 that does not need to be connected to the external conductive bar 402. The breakable connector 102 is designed to facilitate the arrangement of the baffle 101 on the box body 1. The structure is simple and easy to design and implement.

[0064] It should be noted that when the breakable connector 102 breaks under external force, it can break at the connection point between the breakable connector 102 and the baffle 101 or the box body 1. When the breakable connector 102 breaks at the connection point between the baffle 101 and the breakable connector 102, it is considered that the breakable connector 102 is disconnected from the baffle 101. At this time, the breakable connector 102 is still connected to the box body 1. When the breakable connector 102 breaks at the connection point between the box body 1 and the breakable connector 102, it is considered that the breakable connector 102 is disconnected from the box body 1. At this time, the breakable connector 102 is still connected to the baffle 101.

[0065] It is worth mentioning that the breakable connector 102 itself can also be broken under the action of external force. When the connection between its end and the box body 1 and the baffle 101 is not broken, the breakable connector 102 itself is broken. At this time, it can be regarded as the breakable connector being disconnected from the baffle, or it can be regarded as the breakable connector being disconnected from the box body. At this time, both the baffle 101 and the box body 1 are connected with a part of the structure of the breakable connector 102.

[0066] Continue to combine Figure 1 , Figure 4 and Figure 5 As shown, taking the example of a box body 1 having an opening, a baffle 101, and a breakable connector 102 on its side wall, in some exemplary embodiments, along the width direction of the box body 1, the box body 1 has a first side wall 103 corresponding to the first side mounting groove 302 and a second side wall 104 corresponding to the second side mounting groove 303. Along the length direction of the box body 1, the box body 1 has a third side wall 105 and a fourth side wall 106 corresponding to the first side mounting groove 302, and a fifth side wall 107 and a sixth side wall 108 corresponding to the second side mounting groove 303.

[0067] The first sidewall 103, the third sidewall 105, and the fourth sidewall 106 are provided with openings and baffles 101, and the second sidewall 104, the fifth sidewall 107, and the sixth sidewall 108 are provided with openings and baffles 101. By providing openings and baffles 101 on the first sidewall 103, the second sidewall 104, the third sidewall 105, the fourth sidewall 106, the fifth sidewall 107, and the sixth sidewall 108, it is convenient to realize the connection requirements of external conductive busbars 402 in different directions. By providing openings and baffles 101 on multiple sidewalls, it is convenient to realize the connection requirements of multiple external conductive busbars 402, which is beneficial to design and implementation.

[0068] In some exemplary embodiments, the protective cover 2 and the box body 1 of this embodiment can be connected by a snap-fit ​​mechanism, so that the protective cover 2 and the box body 1 are snap-fitted together, which facilitates the disassembly and installation of the protective cover 2, making disassembly and installation convenient and conducive to design and implementation.

[0069] It is worth noting that, to ensure the card connection effect, you can... Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, the housing 1 has a snap-fit ​​protrusion 109, and the protective cover 2 has a snap-fit ​​groove 201. The snap-fit ​​protrusion 109 snaps into the snap-fit ​​groove 201. Through the cooperation of the snap-fit ​​protrusion 109 and the snap-fit ​​groove 201, the protective cover 2 and the housing 1 can be easily snapped together. The structure is simple and easy to design and implement. However, in addition to setting the snap-fit ​​protrusion 109 on the housing 1 and the snap-fit ​​groove 201 on the protective cover 2, in some implementations, based on the arrangement requirements of the high-voltage DC relay 4, it is also possible to set the snap-fit ​​protrusion 109 on the protective cover 2 and the snap-fit ​​groove 201 on the housing 1, provided that the snap-fit ​​conditions are met.

[0070] The above-mentioned slots 201 are arranged on the protective cover 2. For example, the protective cover 2 can be provided with a snap-fit ​​arm 202 extending towards the box body 1. The slots 201 are provided on the snap-fit ​​arm 202. In specific implementation, the snap-fit ​​protrusions 109 are multiple ones arranged at intervals along the circumference of the box body 1, and the slots 201 are multiple ones corresponding to each snap-fit ​​protrusion 109. This makes the protective cover 2 provided with snap-fit ​​arms 202, and the snap-fit ​​slots provided on the snap-fit ​​arms 202. The structure is simple and easy to process. This makes the snap-fit ​​protrusions 109 and the slots 201 correspond to each other, which improves the connection stability of the snap-fit ​​connection and helps with design and implementation.

[0071] It is worth noting that the arrangement position and number of the above-mentioned slots 201 and snap-fit ​​protrusions 109 can be adjusted according to the snap-fit ​​strength. As long as they can satisfy the requirement of snapping the protective cover 2 onto the box body 1, ensure the connection strength between the protective cover 2 and the box body 1, and facilitate the disassembly of the protective cover 2 and the box body 1, they are acceptable.

[0072] In some of the exemplary implementations, combined with Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown in this embodiment, the high-voltage DC relay 4 and the housing 1 can be assembled and connected by an interference fit. For example, an elastic layer (such as rubber) can be provided on the inner wall of the housing 1 to facilitate the insertion and interference fit of one end of the high-voltage DC relay 4 with the stationary contact terminal 401. This interference fit between the high-voltage DC relay 4 and the housing 1 facilitates assembly and helps improve the connection stability between the high-voltage DC relay 4 and the housing 1.

[0073] In specific implementation, the interference fit between the housing 1 and the high-voltage DC relay 4 can be achieved by, for example, providing a slot 1010 on the housing 1 corresponding to the central mounting groove 301. Along the height direction of the housing 1, the slot 1010 extends upward from the bottom of the housing 1 to at least the middle of the housing 1. The slot 1010 on the housing 1 facilitates the insertion of the relay and, to a certain extent, forms a snap-fit ​​effect with the relay, which helps to improve the connection effect between the high-voltage DC relay 4 and the housing 1 and is beneficial to design and implementation.

[0074] In some of the exemplary implementations, combined with Figure 1 , Figure 3 , Figure 4 , Figure 6 and Figure 7 The embodiment shown in the figure may, for example, have a wire harness through hole on the protective cover 2 and a plug 203 located in the wire harness through hole. The plug 203 is detachably connected to the protective cover 2. The wire harness through hole and the plug 203 facilitate the connection of the external wire harness to each conductive busbar 402. The detachable design of the plug 203 facilitates the disassembly and assembly of the plug 203. The structure is simple and easy to design and implement.

[0075] In specific implementations, the above-mentioned plug 203 can also be connected to the box body 1 via a baffle 101. The plug 203 is detachably connected to the protective cover 2 via a breakable connector 102. (Continue referring to...) Figure 1 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the position of the plug 203 on the protective cover 2 is generally set to correspond to the position of the conductive bar 402, so that the external acquisition harness can be connected to the conductive bar 402 of the high voltage DC relay 4.

[0076] It is worth noting that, regarding this embodiment, based on the above exemplary implementations, in specific implementation, as a preferred embodiment, it is still... Figures 1 to 7 As shown, it may include, for example, a housing 1 and a protective cover 2.

[0077] The box body 1 is provided with a central mounting groove 301 that runs through the bottom of the box body 1. Along the width direction of the box body 1, a first side mounting groove 302 and a second side mounting groove 303 are respectively provided on both sides of the central mounting groove 301. One end of the high voltage DC relay 4 with a stationary contact terminal 401 is connected to the central mounting groove 301. The conductive busbar 402 of the high voltage DC relay 4 is respectively installed in the first side mounting groove 302 and the second side mounting groove 303.

[0078] The first mounting groove 302 is provided with a first base 304, and the second mounting groove 303 is provided with a second base 305. Nuts are embedded in both the first base 304 and the second base 305. Each conductive busbar 402 is screwed onto the housing 1 by bolts and is connected to the corresponding stationary contact terminal 401 on the high voltage DC relay 4.

[0079] The first side mounting groove 302 has a first side wall 103 arranged along the width direction of the box body 1, and a third side wall 105 and a fourth side wall 106 arranged along the length direction of the box body 1. The second side mounting groove 303 has a second side wall 104 arranged along the width direction of the box body 1, and a fifth side wall 107 and a sixth side wall 108 arranged along the length direction of the box body 1. The first side wall 103, the second side wall 104, the third side wall 105, the fourth side wall 106, the fifth side wall 107 and the sixth side wall 108 are all provided with openings, and a baffle 101 connected to the box body 1 by a breakable connector 102 is provided in the opening.

[0080] The housing 1 has a slot 1010 corresponding to the central mounting groove 301, and the slot 1010 extends upward from the bottom of the housing 1 to the middle of the housing 1 along the height direction of the housing 1. One end of the high voltage DC relay 4 with the stationary contact terminal 401 is assembled in the central mounting groove 301 on the housing 1 through the slot 1010.

[0081] The protective cover 2 is provided with a snap-fit ​​arm 202 extending toward the box body 1. The snap-fit ​​arm 202 is provided with a snap-fit ​​groove 201. Correspondingly, the box body 1 is provided with a snap-fit ​​protrusion 109. When the protective cover 2 is closed on the box body 1, the snap-fit ​​arm 202 is snapped onto the snap-fit ​​protrusion 109 through the snap-fit ​​groove 201.

[0082] The protective cover 2 is provided with two wire harness through holes corresponding to the first side mounting groove 302 and the second side mounting groove 303, and each wire harness through hole is provided with a plug 203 connected to the protective cover 2 by a breakable connector 102.

[0083] In the preferred embodiment of the above protective components, the specific configuration and arrangement of the box body 1, the protective cover 2, the central mounting groove 301, the first side mounting groove 302, and the second side mounting groove 303 can still be referred to the descriptions in the above exemplary embodiments. Furthermore, in the preferred embodiment of the cover, the beneficial effects brought about by the design of the box body 1, the protective cover 2, the central mounting groove 301, the first side mounting groove 302, and the second side mounting groove 303 can also be referred to the descriptions in the above exemplary embodiments.

[0084] The protective component of this embodiment adopts the above design. Through the housing 1 with mounting groove 3 and the protective cover 2 which is attached to the housing 1 by the slot 201 and the snap-fit ​​protrusion 109, a shielding space can be formed to cover the connection between the high voltage DC relay 4 and the conductive bus 402. Through the setting of the middle mounting groove 301, the first side mounting groove 302 and the second side mounting groove 303, the stationary contact terminal 401 of the high voltage DC relay 4 and the conductive bus 402 are respectively assembled, which facilitates the installation and connection between the conductive bus 402 and the stationary contact terminal 401, and helps to form high voltage protection for the high voltage DC connector and the conductive bus 402, which helps to reduce the risk of electric shock to personnel.

[0085] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A protective component applied to a high-voltage DC relay, characterized in that: It includes a housing with a mounting slot and a protective cover detachably disposed on the housing, the protective cover being used to cover the mounting slot; The mounting slot includes a central mounting slot that extends through the bottom of the housing, and a first side mounting slot and a second side mounting slot respectively disposed on both sides of the central mounting slot. The central mounting slot is used to insert into one end of the high-voltage DC relay with a stationary contact terminal, and the first side mounting slot and the second side mounting slot are respectively used to install each conductive busbar in the high-voltage DC relay.

2. The protective component according to claim 1, characterized in that: Both the first side mounting groove and the second side mounting groove are arranged along the width direction of the box body, and the first side mounting groove and the second side mounting groove are staggered in the length direction of the box body.

3. The protective component according to claim 1, characterized in that: The box body is provided with a first base located in the first side mounting groove and a second base located in the second side mounting groove, and both the first base and the second base are fitted with nuts, each of which is used to connect to the corresponding conductive bar.

4. The protective component according to claim 1, characterized in that: The side wall of the box body is provided with openings corresponding to the first side mounting slot and the second side mounting slot, and a baffle located in the opening. The baffle is connected to the box body by a breakable connector. The breakable connector can be broken under external force to separate the baffle from the box body.

5. The protective component according to claim 4, characterized in that: Along the width direction of the box body, the box body has a first side wall corresponding to the first side mounting groove and a second side wall corresponding to the second side mounting groove; Along the length of the box body, the box body has a third side wall and a fourth side wall corresponding to the first side mounting groove, and a fifth side wall and a sixth side wall corresponding to the second side mounting groove; The opening and the baffle are provided on at least one of the first sidewall, the third sidewall and the fourth sidewall, and / or the opening and the baffle are provided on at least one of the second sidewall, the fifth sidewall and the sixth sidewall.

6. The protective component according to claim 1, characterized in that: The protective cover and the box body are connected by a snap-fit ​​mechanism.

7. The protective component according to claim 6, characterized in that: The box body is provided with a snap-fit ​​protrusion, and the protective cover is provided with a snap-fit ​​groove, and the snap-fit ​​protrusion snaps into the snap-fit ​​groove.

8. The protective component according to claim 7, characterized in that: The protective cover is provided with a snap-fit ​​arm extending towards the housing, and the snap-fit ​​groove is provided on the snap-fit ​​arm; and / or, The snap-fit ​​protrusions are a plurality of those arranged at intervals along the circumference of the box body, and the snap-fit ​​slots are a plurality of those corresponding one-to-one with each of the snap-fit ​​protrusions.

9. The protective component according to claim 1, characterized in that: The high-voltage DC relay is interference-fitted with the housing; and / or The box body is provided with a slot corresponding to the middle mounting slot, and the slot extends upward from the bottom of the box body to at least the middle of the box body along the height direction of the box body.

10. The guard assembly of any one of claims 1 to 9, wherein: The protective cover is provided with a wire harness via hole, and a plug cover located in the wire harness via hole, and the plug cover is detachably connected with the protective cover.

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