Electrical firewall structure and automobile body

Abstract

The utility model discloses an electrical firewall structure and an automobile body, and relates to the technical field of automobile parts, the electrical firewall structure comprises a dash panel used for installing a firewall main body; the through grooves are distributed in the surface of the firewall main body in an array mode, a plurality of limiting clamping grooves are distributed in the inner side of each through groove in an array mode, and the limiting clamping grooves are connected with the connector in a clamped mode; the wiring assembly comprises a plurality of positive binding posts and a plurality of negative binding posts. According to the electrical firewall structure, the technical problems that an existing electrical firewall is poor in expansibility, platform development is not facilitated, a mold needs to be developed again when a plug-in is replaced, and the use cost is high are solved, and the multiple through grooves are formed in the surface of the firewall body in an array mode; each through groove can be used for fixing various connectors with different module functions, so that connection requirements of more circuits are met, frequent replacement of the connectors is avoided, and the use cost of the firewall main body is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially to an electrical firewall structure and automobile body. BACKGROUND

[0002] Modern cars pursue comfort, and the degree of automation is getting higher and higher, and the configuration of on-board electronic equipment is also getting more and more, because a large number of on-board electronic equipment are installed in the car, a large number of electrical wiring harnesses and wiring harness connectors are laid on the car body. The whole vehicle electrical connection is a whole, but due to the need of arrangement or assembly, it is artificially divided into several sections or more parts, and they are connected by connectors. In the design of the car, the fixing of the wiring harness and the wiring harness connector has high requirements. The connector at the connection between the chassis wiring harness and the cab wiring harness of some cars is not fixed, or is not fixed firmly, which causes the wiring harness and the surrounding parts to rub and break due to vibration during the use of the car, resulting in short circuit, and the terminals in the connector at the connection of the wiring harness are loose, and the contact is poor, which causes the electrical devices to not work normally, and even the wiring harness is ablated, the vehicle is self-ignited, and other serious consequences. In the passenger car system, the firewall in the car is mainly a protective structure for the wiring harness passing through the metal sheet between the engine compartment and the passenger compartment, mainly for sealing, wiring harness fixing, flame retardant and other functions, and in the commercial vehicle system, it is mainly used as an electrical connection mechanism between the chassis system and the cab, which is convenient for wiring harness connection and fixing, and also needs sealing, flame retardant and other requirements.

[0003] However, the existing electrical firewall is designed for a specific connector, has poor expandability, is not conducive to platform development, and once the function is increased too much, the connector needs to be replaced, the overall firewall needs to be developed again, and the use cost is relatively high. Moreover, the existing electrical firewall is not suitable for large current connectors and cannot meet the increasing functions of modern cars. On the other hand, compared with the newly developed firewall adapter connector, the existing electrical firewall adapter connector has the problems of difficult plugging, low terminal vibration level, and easy contact failure. Therefore, an electrical firewall structure and automobile body are proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an electrical firewall structure and automobile body, which solves the technical problems of poor expandability of the existing electrical firewall, which is not conducive to platform development, and the overall firewall needs to be developed again when the connector is replaced, and the use cost is high.

[0005] To achieve the above-mentioned purpose, the utility model provides an electrical firewall structure, which comprises:

[0006] The front wall is arranged below the instrument desk of the car and is used for installing the firewall main body.

[0007] Grooves, a plurality of the grooves are arranged on the surface of the firewall body, and a plurality of limiting clamping grooves are arranged on the inner side of each of the grooves, the limiting clamping grooves are connected with the connector, and the connector is used for connecting the chassis wire harness and the cab wire harness.

[0008] A wiring assembly is arranged at the lower part of the firewall body, and the wiring assembly comprises a plurality of positive connection posts and a plurality of negative connection posts, and the positive connection posts and the negative connection posts are respectively used for connecting electrical devices.

[0009] Preferably, a plurality of connecting ears are symmetrically arranged on the two sides of the firewall body, and each of the connecting ears is connected with the front wall through a Z-shaped connecting piece.

[0010] Preferably, a plurality of first bolt holes are arranged on the surface of the front wall, a second bolt hole is arranged on the top surface of each of the connecting ears, the first end of the Z-shaped connecting piece is connected with the first bolt hole through a first bolt, and the second end of the Z-shaped connecting piece is connected with the second bolt hole through a second bolt.

[0011] Preferably, a limiting baffle is arranged at the edge position of the top surface of the connecting ear, and the limiting baffle abuts against the outer circumferential surface of the first end of the Z-shaped connecting piece.

[0012] Preferably, an insulating baffle is arranged on the top side of each of the positive connection posts and the negative connection posts, and a plurality of the insulating baffles are integrally arranged.

[0013] Preferably, the insulating baffles are in a U-shaped structure, and the opening of the insulating baffles faces the positive connection posts or the negative connection posts.

[0014] Preferably, the positive connection posts are connected with the firewall body through a third bolt, and the negative connection posts are connected with the firewall body through a fourth bolt which is different from the third bolt in type and specification.

[0015] Preferably, a plurality of clamping protrusions are symmetrically arranged on the two sides of the connector, and each of the clamping protrusions is connected with one of the limiting clamping grooves.

[0016] An automobile body comprises the electrical firewall structure.

[0017] With respect to the above background technology, the electrical firewall structure provided by the present application has the following beneficial effects:

[0018] (1) The utility model discloses a chassis wire harness and cab wire harness are connected through the butt joint of connector after, through the surface array arrangement of multiple through -grooves of firewall main part, every through -groove can fix the connector of various different module function to be suitable for more circuit's connection demand, avoid frequent replacement connector, reduce the use cost of firewall main part. Moreover, through the positive terminal post and negative terminal post replace traditional wiring sheet, make it can be suitable for large -current connector to satisfy the connection wire harness of current demand bigger, and the practicality is better.

[0019] (2) The utility model discloses directly connecting connector through limiting slot, and connector is more convenient when plugging, and can fix connector stably on firewall main part, prevent the situation that connector loosening leads to chassis wire harness and cab wire harness contact badly, and then improve the stability when wire harness connection. DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the drawing needed to use in the embodiment or prior art description simple introduction, obviously, below description's drawing only is the embodiment of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to the provided drawing.

[0021] Figure 1 It is the assembly schematic view of the electrical firewall structure provided by the embodiment of the utility model;

[0022] Figure 2 It is another angle assembly schematic view of the electrical firewall structure provided by the embodiment of the utility model;

[0023] Figure 3 It is the explosion schematic view of the electrical firewall structure provided by the embodiment of the utility model;

[0024] Figure 4 It is the plan view of the firewall main body provided by the embodiment of the utility model.

[0025] Specifically, 1-front wall board;2-firewall main body;3-through groove;301-limiting slot;4-positive terminal post;5-negative terminal post;6-Z-shaped connecting piece;7-connection lug;701-limiting baffle;8-insulating baffle;9-connector;10-cavity;11-double-layer partition. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0027] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0028] As shown in Figure 1 and Figure 2 To achieve the above object, the present application provides an electrical firewall structure, comprising: a firewall main body 2 and a through slot 3 and a wiring assembly arranged on the firewall main body 2, wherein the front wall 1 is arranged below the instrument desk of the automobile, the firewall main body 2 is installed on the front wall 1, and the firewall main body 2 is integrally formed, which can effectively improve the structural strength of the overall firewall main body 2. It should be noted that the firewall main body 2 is made of insulating material, preferably, the firewall main body 2 is made of polypropylene material, which fully utilizes its good heat resistance, chemical resistance and mechanical strength, and the advantage of relatively easy processing.

[0029] A plurality of through slots 3 are arranged on the surface of the firewall main body 2, the through slots 3 are in the form of a cuboid, and are arranged through the front and back sides of the firewall main body 2, and the design of the plurality of slots 3 can be applied to more types and specifications of connectors 9. Specifically, 8 through slots 3 are arranged, each through slot 3 can fix connectors 9 of various different module functions, and the chassis functions and systems are independently distinguished, which is more convenient for modular design, and the after-sales service personnel can quickly find the position of the connecting wires of the connectors of each module function during maintenance, thereby improving the maintenance efficiency.

[0030] The inner side of each through slot 3 is arranged with a plurality of limiting clamping grooves 301, the limiting clamping grooves 301 clamp the connecting connectors 9, and the connecting connectors 9 are used to connect the chassis wire harness and the cab wire harness, wherein the limiting clamping grooves 301 directly clamp the connecting connectors 9, which can stably fix the connecting connectors 9 on the firewall main body 2, prevent the connecting connectors 9 from loosening to cause poor contact of the chassis wire harness and the cab wire harness, and further improve the stability during wire harness connection, and the connecting connectors 9 are more convenient to plug in and plug out.

[0031] In addition, the double-layer partition plate 11 is arranged between the two adjacent through grooves 3, the distance between the two through grooves 3 is increased, the adjacent two connectors 9 in the two through grooves 3 can be prevented from interfering with each other during installation, the convenience of the connector 9 during plugging and unplugging is effectively improved, and the practicability is better. Moreover, the cavity 10 is arranged between the double-layer partition plate 11, the distance between the two through grooves 3 is further increased, and the situation that the wire harnesses on the adjacent two connectors 9 are in series and short-circuit is prevented.

[0032] The lower part of the firewall body 2 is provided with a wiring assembly, and the wiring assembly comprises: a plurality of positive connection posts 4 and negative connection posts 5, and the positive connection posts 4 and the negative connection posts 5 are respectively used for connecting electrical devices. Specifically, four positive connection posts 4 can be connected with a plurality of electrical devices at the same time, so that the whole firewall body 2 has good expansibility and is beneficial to platform design. Moreover, the positive connection posts 4 and the negative connection posts 5 replace the traditional wiring sheet, so that they can be applied to large-current connectors, so as to better meet the connection wire harness with large current demand of the whole vehicle, avoid the ablation of the connection between the positive connection posts 4 and the negative connection posts 5 and the wire harness, and improve the safety of the whole firewall structure.

[0033] In one embodiment of the utility model, a plurality of connecting ears 7 are symmetrically arranged on the two sides of the firewall body 2, and each connecting ear 7 is connected with the front wall 1 through a Z-shaped connecting piece 6. Specifically, two connecting ears 7 are arranged on the two sides of the firewall body 2 respectively, and the connecting ears 7 are fixed on the front wall 1 through the Z-shaped connecting piece 6. The distance between the firewall body 2 and the front wall 1 can be increased, a certain installation space is provided for the connector 9, and the installation of the connector 9 on the firewall body 2 will not be affected after the connector 9 is connected with the chassis wire harness and the cab wire harness.

[0034] It should be noted that the surface of the front wall 1 is provided with a plurality of first bolt holes, the top surface of each connecting ear 7 is provided with a second bolt hole, the first end of the Z-shaped connecting piece 6 is connected with the first bolt hole through a first bolt, the second end of the Z-shaped connecting piece 6 is connected with the second bolt hole through a second bolt, and a buffer gasket is arranged at the connection position of the first bolt and the first bolt hole and at the connection position of the second bolt and the second bolt hole. The buffer gasket is made of rubber material. When the Z-shaped connecting piece 6 stably connects the firewall body 2 to the front wall 1, a certain buffering effect can be achieved when the automobile body vibrates, the connection between the connector 9 and the wire harness can be prevented from loosening, the rigid friction between the Z-shaped connecting piece 6 and the connecting ear 7 can be avoided, and the service life of the whole firewall structure is prolonged.

[0035] In addition, the first bolt hole located at the upper left of the firewall body 2 is arranged in a strip shape, and the length direction of the first bolt hole is consistent with the width direction of the firewall body, so as to ensure that the connecting lug 7 has a certain adjustment space along the width direction of the firewall body when the connecting lug 7 is connected with the Z-shaped connecting piece 6, and the firewall body and the front wall 1 can be stably connected. Meanwhile, the first bolt hole located at the lower right of the firewall body 2 is arranged in a strip shape, and the length direction of the first bolt hole is consistent with the length direction of the firewall body, so as to ensure that the connecting lug 7 has a certain adjustment space along the length direction of the firewall body when the connecting lug 7 is connected with the Z-shaped connecting piece 6, and the firewall body and the front wall 1 can be stably connected.

[0036] Preferably, a limiting baffle 701 is arranged at the top surface edge position of the connecting lug 7, the limiting baffle 701 is arranged integrally with the connecting lug 7, and after the first end of the Z-shaped connecting piece 6 is connected with the connecting lug 7, the limiting baffle 701 abuts against the outer circumferential side surface of the first end of the Z-shaped connecting piece 6, so as to prevent the connecting lug 7 from moving back and forth relative to the Z-shaped connecting piece 6, and improve the connection stability of the Z-shaped connecting piece 6 and the connecting lug 7.

[0037] In an embodiment of the utility model, the upper side of the positive pole connecting post 4 and the negative pole connecting post 5 is equipped with an insulating baffle 8, the insulating baffle 8 can prevent the adjacent positive pole connecting post 4 or negative pole connecting post 5 from contacting each other, thereby avoiding short circuit, series electricity and other conditions, and playing a role of protecting the wire harness. It should be noted that the plurality of insulating baffles 8 are integrally arranged, which is more convenient to install, and the protection effect of each positive pole connecting post 4 or negative pole connecting post 5 is better.

[0038] Preferably, the baffle is in a U shape, and the opening of the baffle faces the positive pole connecting post 4 or the negative pole connecting post 5, and the opening is arranged below the baffle, which is helpful for providing convenience for the connection of the wire harness. Meanwhile, a + symbol is marked beside the positive pole connecting post 4, the negative pole connecting post 5 is designed on the left side, and a - symbol is marked beside the negative pole connecting post 5, so as to warn and distinguish the positive pole connecting post 4 and the negative pole connecting post 5, and avoid the connection error of the wire harness.

[0039] It should be noted that the positive pole connecting post 4 and the negative pole connecting post 5 are connected to the firewall body 2 by using two types of different studs, specifically, the positive pole connecting post 4 is an M8 stud, and the negative pole connecting post 5 is an M10 stud, which can further avoid the connection error of the wire harness.

[0040] In one embodiment of the utility model, a plurality of clamping protrusions (not shown in the figure) are symmetrically arranged on both sides of the connector 9, each clamping protrusion clamps and connects a limiting clamping groove 301, the plurality of clamping protrusions and the corresponding limiting clamping grooves 301 are clamped and matched with each other, the connection strength between the connector 9 and the through slot 3 is enhanced, the connector 9 is fixed more firmly, at the same time, the force required when the connector 9 is plugged in and pulled out is reduced, and the connector 9 is more convenient to plug in and pull out. It should be noted that the clamping protrusions on the connector 9 of different modules are clamped and connected to the limiting clamping grooves 301 at different positions.

[0041] In summary, by arranging a plurality of through slots 3 on the surface of the firewall body 2, each through slot 3 can fix the connector 9 of various different modules, which is suitable for more circuit connection requirements, avoids frequent replacement of the connector 9, and reduces the use cost of the firewall body 2. Moreover, the positive terminal post 4 and the negative terminal post 5 replace the traditional terminal sheet, which is suitable for large-current connectors to meet the connection harness with large current demand, and has better practicability.

[0042] In addition to the above-mentioned electrical firewall structure, the utility model also provides an automobile body comprising the electrical firewall structure disclosed in the above embodiment, and the structures of other parts of the automobile body refer to the prior art, which will not be described herein.

[0043] It should be noted that in the present specification, relational terms such as first and second are used only to distinguish one entity from another entity, and do not necessarily require or imply that there is any such actual relationship or order between these entities.

[0044] The principles and implementation modes of the utility model are described by applying specific examples in the present specification, and the above description of the embodiments is only used to help understand the method of the utility model and its core idea. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the principles of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model.

Claims

1. An electrical firewall structure, characterized by, The utility model relates to an electrical firewall structure, comprising: a front wall arranged below an instrument desk of a vehicle and used for mounting a firewall body; a plurality of through grooves arranged on a surface of the firewall body, each of the through grooves having a plurality of limiting clamping grooves arranged on an inner side of the through groove, the limiting clamping grooves being clamped to connect a connector, the connector being used for connecting a chassis wire harness and a cab wire harness; a wiring assembly arranged at a lower part of the firewall body, the wiring assembly comprising a plurality of positive electrode wiring posts and a plurality of negative electrode wiring posts, the positive electrode wiring posts and the negative electrode wiring posts being respectively used for connecting electrical devices.

2. An electrical firewall structure according to claim 1, wherein The firewall body is symmetrically provided with a plurality of connecting ears on two sides of the firewall body, each of the connecting ears being connected to the front wall through a Z-shaped connecting piece.

3. An electrical firewall structure according to claim 2, wherein The front wall is provided with a plurality of first bolt holes on a surface of the front wall, a top surface of each of the connecting ears is provided with a second bolt hole, a first end of the Z-shaped connecting piece is connected to the first bolt hole through a first bolt, and a second end of the Z-shaped connecting piece is connected to the second bolt hole through a second bolt.

4. An electrical firewall structure according to claim 3, wherein A limiting baffle is arranged at a top surface edge position of the connecting ear, and the limiting baffle abuts against an outer circumferential surface of the first end of the Z-shaped connecting piece.

5. The electrical firewall structure of claim 1, wherein, An insulating baffle is arranged on an upper side of each of the positive electrode wiring posts and the negative electrode wiring posts, and a plurality of the insulating baffles are integrally arranged.

6. An electrical firewall structure according to claim 5, wherein The insulating baffles are in a U shape as a whole, and an opening of the insulating baffles faces the positive electrode wiring posts or the negative electrode wiring posts.

7. An electrical firewall structure according to claim 6, wherein The positive electrode wiring posts are connected to the firewall body through third bolts, and the negative electrode wiring posts are connected to the firewall body through fourth bolts different from the third bolts in type and specifications.

8. An electrical firewall structure according to any one of claims 1-7, characterized in that A plurality of clamping protrusions are symmetrically arranged on two sides of the connector, and each of the clamping protrusions is clamped to connect one of the limiting clamping grooves.

9. A motor vehicle body, characterised in that The utility model relates to an electrical firewall structure, comprising: a front wall arranged below an instrument desk of a vehicle and used for mounting a firewall body; a plurality of through grooves arranged on a surface of the firewall body, each of the through grooves having a plurality of limiting clamping grooves arranged on an inner side of the through groove, the limiting clamping grooves being clamped to connect a connector, the connector being used for connecting a chassis wire harness and a cab wire harness; a wiring assembly arranged at a lower part of the firewall body, the wiring assembly comprising a plurality of positive electrode wiring posts and a plurality of negative electrode wiring posts, the positive electrode wiring posts and the negative electrode wiring posts being respectively used for connecting electrical devices. The firewall body is symmetrically provided with a plurality of connecting ears on two sides of the firewall body, each of the connecting ears being connected to the front wall through a Z-shaped connecting piece. The front wall is provided with a plurality of first bolt holes on a surface of the front wall, a top surface of each of the connecting ears is provided with a second bolt hole, a first end of the Z-shaped connecting piece is connected to the first bolt hole through a first bolt, and a second end of the Z-shaped connecting piece is connected to the second bolt hole through a second bolt. A limiting baffle is arranged at a top surface edge position of the connecting ear, and the limiting baffle abuts against an outer circumferential surface of the first end of the Z-shaped connecting piece. An insulating baffle is arranged on an upper side of each of the positive electrode wiring posts and the negative electrode wiring posts, and a plurality of the insulating baffles are integrally arranged. The insulating baffles are in a U shape as a whole, and an opening of the insulating baffles faces the positive electrode wiring posts or the negative electrode wiring posts. The positive electrode wiring posts are connected to the firewall body through third bolts, and the negative electrode wiring posts are connected to the firewall body through fourth bolts different from the third bolts in type and specifications. A plurality of clamping protrusions are symmetrically arranged on two sides of the connector, and each of the clamping protrusions is clamped to connect one of the limiting clamping grooves.

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