CN209471916U - A kind of relay fuse box for motor vehicle harness - Google Patents

Abstract

The utility model discloses a kind of relay fuse boxs for motor vehicle harness, belong to relay fuse box technical field.Fuse box mainly includes upper cover, ontology and lower cover；It include that sub-socket is pulled out in relay socket, safety socket, conductive terminal and insurance in the ontology, it further include confluence piece, binding post, connecting terminal, square nut and lock card, upper cover and lower cover are fixed by snap on the hook of ontology, and ontology both ends are equipped with the installation foot being installed on fuse box on motor vehicle.The utility model conductive terminal is fixed on relay socket and fuse receptacle using clamping structure, and reduction is secondary self-locking, not only saves material, but also assemble also more convenient；The piece that converges uses tuning-fork type moulding, also reduces voltage drop while having saved confluence sheet material；The mounting hole of installation foot increases becket, and post uses anti-rotation structure, so that fuse box stability gets a promotion；Insurance, which pulls out the insurance of sub- Practical multifunction and pulls out son, also improves usage experience.

Description

A kind of relay fuse box for motor vehicle harness

Technical field

The utility model belongs to relay fuse box technical field, is related to a kind of relay guarantor for motor vehicle harness Dangerous silk box.

Background technique

Fuse box refers to the box (also referred to as fuse holder) of installation insurance silk, facilitates installation insurance silk, partially have waterproof, The performance characteristics such as fire prevention, high temperature resistant (by depending on the difference of material and shape).Fuse box can be divided into lead type fuse box, vapour Vehicle fuse box.Fuse box general-purpose injection material has: plastics, nylon, bakelite, PBT engineering plastics.Every kind of material is different, and its is resistance to High temperature level is different.During selecting fuse box, the size of current of used fuse, the size of fuse should be taken into account It is required that fuse electric current is bigger, then the wire rod compared with large size will be selected in wire rod matched with fuse box, not so will lead to Fuse box and wire rod fever, cause fire.

Automobile fuse box is divided by applicable fuse size: small size inserted sheet safety box, medium size inserted sheet fuse box, large size Inserted sheet fuse box.It selects fuse box mainly to see its size, then sees that can its fire-protection rating reach requirement and suitable fuse Pipe size and electric current, general high current (general 15A or more is called high current) are suitble to be inserted with 6 × 30mm fuse box, medium size Piece fuse box, wire rod need 16AWG (1.5 squares) or more.

Not enough, not only device material causes certain for the structure optimization of automobile fuse box assembly ware traditional at present Waste, and also increase certain human resources in assembling process；And the binding post of existing fuse box is easy in assembly It rotates together with fixture nut, affects to fuse box ontology stability.

Summary of the invention

The utility model aim is to provide: a kind of relay fuse box for motor vehicle harness solves insurance Silk box structure not enough optimizes and the not high problem of stability.

The technical solution adopted in the utility model is as follows:

A kind of relay fuse box for motor vehicle harness, including upper cover, ontology and lower cover；

Described upper cover outer wall or so end is equipped with the first buckle, and body outer wall or so end is equipped with and the first buckle corresponding first Hook；

The lower cover outer wall front and back end is equipped with the second buckle, and body outer wall front and back end is equipped with and the second buckle corresponding second Hook；

Described body outer wall or so end is additionally provided with installation foot, there is mounting hole on installation foot, and inner wall of the hole installing is equipped with becket；

The ontology includes relay socket and safety socket, and socket is made of multiple jacks, and jack inner wall is equipped with third Buckle, jack inside are equipped with conductive terminal；

The conductive terminal top is equipped with socket, and bottom end is equipped with contact pole, and middle part is equipped with the third for corresponding to third buckle Hook；

The ontology further includes binding post, connecting terminal, square nut, lock card and confluence piece；Confluence piece and connecting terminal are logical It crosses square nut and lock card is fixed on binding post；The confluence piece is tuning fork shape, and the interdigital end of tuning fork is contacted with the contact pole.

Further, the confluence piece is two panels, and two panels confluence piece fixing end bending forms a door in binding post lower end Cavity, cavity is interior to place square nut and lock card.

Further, the square nut is as broad as long cube, spacing in the gate cavity that two panels confluence piece is formed It is less than square nut upper surface diagonal length greater than square nut long side length.

Further, the ontology includes MICRO relay socket, MINI relay socket, MINI safety socket, melts slowly Sub-socket is pulled out in safety socket and insurance, wherein MICRO relay socket 2, and MINI relay socket 6, MINI safety socket 16 tunnels, molten safety socket is 6 slowly, and insurance pulls out sub-socket 1.

Further, the ontology uses material for nylon PA66 material；Upper cover and lower cover use material for PP+TD20 material Matter.

In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:

1. in the utility model by upper cover it is corresponding on ontology first buckle and first link up with, lower cover with it is right on ontology The second buckle and the second hook answered, jack link up with the clamping structure combined with third with the third buckle in conductive terminal, So that fuse box is easy to assembly quick, while the jack of fuse box socket and the conductive terminal component inside jack are using card Binding structure is fixed, and is reduced secondary self-locking part, has been saved material cost.

It 2. the utility model binding post uses square nut and the anti-rotation structure of lock card, revolve binding post in assembling process will not Turn, wiring is more stable, effectively reduces failure rate.

3. the mounting hole of the utility model installation foot is equipped with becket, fuse box installation point is more stable.

4. the piece contact jaw that converges in the utility model is designed using tuning-fork type, while guaranteeing contact effect, make voltage drop It is smaller, conductor material has been saved to greatest extent.

5. fuse box ontology uses nylon PA66 material in the utility model, upper cover and lower cover use PP+TD20 material, There are good strength and stiffness at relatively high temperatures, ensure that the stability used.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings, in which:

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is the utility model body plane structural schematic diagram；

Fig. 3 is the utility model connector assembly and confluence piece schematic diagram；

Fig. 4 is the utility model receptacle sockets planar structure schematic diagram；

Fig. 5 is the utility model conductive terminal structure schematic diagram；

Fig. 6 is the utility model conductive terminal front view；

Fig. 7 is the utility model conductive terminal top view；

Marked in the figure: 1- upper cover, 2- ontology, 3- lower cover, 4- first are buckled, 5- first is linked up with, and 6- second is buckled, 7- second Hook, 8- installation foot, 9 mounting holes, 10- binding post, 11- connecting terminal, 12- square nut, 13- lock card, 14- confluence piece, 15- are inserted Hole, 16- third buckle, 17- conductive terminal, 18- socket, 19- contact pole, 20- third hook.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this Utility model is not used to limit the utility model, i.e., the described embodiments are only a part of the embodiments of the utility model, Instead of all the embodiments.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be with each Different configurations is planted to arrange and design.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Reality based on the utility model Apply example, those skilled in the art's every other embodiment obtained without making creative work belongs to The range of the utility model protection.

It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive Property include so that include a series of elements process, method, article or equipment not only include those elements, but also Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described There is also other identical elements in the process, method, article or equipment of element.

As shown in Figure 1, a kind of relay fuse box for motor vehicle harness, comprising: upper cover 1, ontology 2 and lower cover 3；

Described 1 outer wall of upper cover or so end is equipped with the first buckle 4, and 2 outer wall of ontology or so end is equipped with corresponding with the first buckle 4 First hook 5；

The 3 outer wall front and back end of lower cover is equipped with the second buckle 6, and 2 outer wall front and back end of ontology is equipped with corresponding with the second buckle 6 Second hook 7；

Specifically, 1 outer wall left and right ends of upper cover are respectively equipped with one first buckle 4, with the first 4 corresponding, ontologies 2 of buckle Outer wall left and right ends are respectively equipped with one first hook 5, and by 5 cooperation of the first buckle 4 and the first hook, upper cover 1 is fixed to On ontology 2；3 outer wall front and back end of lower cover is respectively equipped with two second buckles 6, corresponding with the second buckle 6, before and after 2 outer wall of ontology End is respectively equipped with two second hooks 7, and by 7 cooperation of the second buckle 6 and the second hook, lower cover 3 is fixed on ontology 2.

It is understood that the left and right end and front and back end of 3 outer wall of the upper cover 1, ontology 2 and lower cover are the phase of fuse box To position.The face for having hook 5 in figure is defined as to the left and right end of fuse box as shown in Figure 1:, there will be the face of hook 7 to determine in figure Justice is the front and back end of fuse box.

Specifically, upper cover 1 and lower cover 3 are made of PP+TD20 material.PP+TD20 is referred to during PP material injection 20% talcum powder is added, to change the characteristic of material, such material stiffness is good, and anti-collision performance is good.Ontology 2 uses Buddhist nun Imperial PA66 material is made.PA66 is being commonly called as polyhexamethylene adipamide, and polyhexamethylene adipamide is a kind of thermoplastic resin, white Solid, does not dissolve in common solvent, is only soluble in phenyl methylcarbamate etc. by 253 DEG C of fusing point.Mechanical strength and hardness are very high, and rigidity is very big, can As engineering plastics, it is typically used as mechanical attachment, such as gear, lubrication bearing；Machine casing, automobile are done instead of nonferrous materials Engine blade etc..

It is understood that using upper cover 1, lower cover 3 made of above-mentioned material and ontology 2, it can be at a higher temperature With good strength and stiffness, so that fuse box has stronger stability.

Described 2 outer wall of ontology or so holds the installation foot 8 for further respectively having a fuse box, on each installation foot 8 There is a mounting hole 9, for fuse box installation to be fixed to motor vehicle by screw；

Specifically, it is equipped with becket in the inner wall of each mounting hole 9, mounting hole 9 is reinforced, so that fuse box Being mounted on motor vehicle has stronger rigidity, even if motor vehicle shake is severe, fuse box, which is also hardly damaged, to fall off, and is promoted and is protected Dangerous silk box stability.

As shown in Fig. 2, include in the ontology 2 MICRO relay socket, MINI relay socket, MINI safety socket, Slowly sub-socket is pulled out in molten safety socket and insurance；

Specifically, relay socket and safety socket are made of multiple jacks 15, as shown in Figure 4.

According to relay socket, corresponding relay is different with fuse model with fuse receptacle, specific each socket 15 quantity of jack is different；Third buckle 16 is provided on the inner wall of each jack 15, buckle has stronger toughness；It is right It should be also equipped with the conductive terminal 17 of respective numbers in 15 quantity of jack of socket, each socket, conductive terminal 17 is fixed on jack Inside 15,17 upper end of conductive terminal is equipped with socket 18, and 18 position of socket is aligned with jack 15, in order to relay or fuse Insertion, the bottom end of conductive terminal 17 are equipped with contact pole 19, and contact pole 19 connects power supply, while being equipped at the middle part of conductive terminal 17 Conductive terminal 17, is fixed to inside jack 15 by third hook 20 corresponding with third buckle by third hook 20；Third is hung 20 material of hook is consistent with third 16 materials of buckle, equally has stronger toughness；In the present embodiment, 17 ontology of conductive terminal is pair Claim design, left and right ends are equipped with third hook 20, convenient that specially area is not required to when being assembled in jack 15 with conductive terminal 17 It is point positive and negative, so that assembling process is lighter；And using buckle with hook clamping structure, fixed conductive terminals 17 when Time do not need it is secondary it is self-locking can also guarantee socket have preferable stability.Fuse box structure is optimized, has been saved secondary Self-locking material, while easy assembling process, effectively control manpower and material resources.

The structure of conductive terminal 17 is as shown in Fig. 5, Fig. 6 and Fig. 7.

It is understood that relay is one kind when input quantity (electricity, magnetic, sound, light, heat) reaches certain value, output quantity The automatic control device of great-jump-forward variation will occur.And motor vehicle relay is relay used in motor vehicle, such relay Device switching bearing power is big, and anti-impact, vibration resistance are high.Power supply in automobile is mostly used 12V, and coil voltage is designed to greatly 12V.Due to It is storage battery power supply, spread of voltage；Environmental requirement is quite harsh: in enging cabin, ambient temperature range require for -40 DEG C~ 125 DEG C, other positions ambient temperature range is -40 DEG C~85 DEG C；The relay used in enging cabin to be amenable to sand dust, The infringement of water, salt, oil；And to stand vibration, impact.

Automobile fuse is one kind of current insurance silk, plays the role of circuit protection.It is usually used in automobile circuit overcurrent guarantor Shield, is also used for the overcurrent protection of industrial equipment.When electric current flows through conductor, because there are certain resistance for conductor, so conductor will It can generate heat, and calorific value follows this formula: Q=0.24I²RT；Wherein Q is calorific value, and 0.24 is a constant, and I is stream The electric current of conductor is crossed, R is the resistance of conductor, and T is the time that electric current flows through conductor；According to this formula we be not difficult to find out fuse Simple working principle.When the material and its shape of production fuse have determined, resistance R is just opposite have been determined (if not examining Consider its temperature-coefficient of electrical resistance).When electric current flows through it, it will generate heat, its calorific value is also increasing as time increases. The size of electric current and resistance has determined that the speed for generating heat, the situation that the construction of fuse is installed with it have determined that heat dissipates Speed, if generate heat speed be less than heat dissipate speed, fuse will not fuse.If generating the speed of heat When degree is equal to the speed that heat dissipates, it will not fuse within considerable time.If the speed for generating heat is greater than heat When the speed of dissipation, then the heat generated will be more and more；Again because it has a constant specific heat and quality, the increase of heat In the raising for just showing temperature, fuse is just fused when more than the fusing point that temperature is increased to fuse.Therefore, machine The stability requirement of motor-car fuse box is relatively high.

Specifically, in the present embodiment, the MICRO relay socket that ontology 2 includes is 2, and MINI relay socket is 6 A, MINI safety socket is 16 tunnels, and molten safety socket is 6 tunnels slowly, and it is 1 that sub-socket is pulled out in insurance.The relay socket of the quantity And safety socket, can sufficiently meet each electric appliance of motor vehicle engine compartment uses requirement on electric performance.Meanwhile in the present embodiment, it is inserted in It is that can press from both sides MINI fuse that insurance, which pulls out the insurance inside sub-socket and pulls out son, and the Multifunctional safety that can also press from both sides slow-melting fuse pulls out Son facilitates the inspection and replacement of fuse.

It further include binding post 10, connecting terminal 11, square nut 12, lock card 13 and confluence piece 14 in the ontology 2；Specific knot Structure is as shown in figure 3, connecting terminal 11 and confluence piece 14 are fixed on binding post 10 by square nut 12 and lock card 13；

The fixture nut of binding post 10 uses cube figure modelling, i.e., fixed using square nut 12, in assembly connecting terminal 11 During confluence piece 14, binding post 10 will not be rotated with it when nutting, while increase by 13 structure of lock card, so that power supply connects The assembly of line component is more stable.Confluence piece 14 is made of copper sheet, has good electrical conductance, is contacted using two panels confluence piece 14 End connection relay socket and safety socket, realize that the electric energy of each insurance is derived from same electricity by binding post 10 and connecting terminal 11 Source, circuit in parallel connection, also increases circuit stability.

Specifically, the fixed bending of two panels confluence piece 14, is fixed on binding post 10, while being formed in the lower end of binding post 10 One gate cavity, as shown in figure 3, the square nut 12 and lock card 13 are in this gate cavity, which is length The equal cube of width is highly slightly less than length and width, while the interior spacing of gate cavity is less than greater than the long side length of square nut 12 The diagonal length of 12 upper surface of square nut, therefore, square nut 12 not can be rotated in the gate cavity that confluence piece 14 is formed, so that When assembling power supply line, hold-doun nut is turned, binding post 10 has more stability under the action of square nut 12 and lock card 13, and wiring is more Add stabilization, reduces failure rate.

In a particular embodiment, a kind of size of square nut 12 and confluence piece 14 are as follows: 12 length and width of square nut are 1cm, high For 0.5cm；Spacing is 1.5cm in the gate cavity that two panels confluence 14 connecting part of piece is formed.

At the same time, the contact jaw of confluence piece 14 is designed using tuning-fork type, has not only saved the materials of confluence piece 14, but also The contact effect for changing confluence 14 contact jaw of piece and each insurance, so that voltage drop is smaller.

It is understood that voltage drop: when charge flows, energy possessed by charge discharges in circuit, circuit and electricity The element connected in road will absorb the energy of charge.By energy absorption, charge releases energy after the energy contained by itself Become smaller, people measure the capacity of water that charge releases energy in circuit with voltage landing.It, will be when electric current flows through circuit Circuit per it is a bit of it is middle generate certain voltage landing, voltage drop (or states this as to indicate that charge flows through segment release Segment circuit absorb) electric energy size.Therefore, voltage drop reduction can be energy saving.

The above is only the preferred embodiment of the utility model only, the protection model being not intended to limit the utility model It encloses, anyone skilled in the art any modification made within spirit of the present utility model and principle is equally replaced It changes and improves, should be included within the scope of protection of this utility model.

Claims (5)

1. a kind of relay fuse box for motor vehicle harness, including upper cover (1), ontology (2) and lower cover (3), feature It is:

Described upper cover (1) outer wall or so end is equipped with the first buckle (4), and ontology (2) outer wall or so end is equipped with right with the first buckle (4) The first hook (5) answered；

Lower cover (3) the outer wall front and back end is equipped with the second buckle (6), and ontology (2) outer wall front and back end is equipped with right with the second buckle (6) The second hook (7) answered；

Described ontology (2) outer wall or so end is additionally provided with installation foot (8), is had on installation foot (8) mounting hole (9), mounting hole (9) inner wall Equipped with becket；

The ontology (2) includes relay socket and safety socket, and socket is made of multiple jacks (15), and jack (15) inner wall is set There is third to buckle (16), is equipped with conductive terminal (17) inside jack (15)；

Conductive terminal (17) top is equipped with socket (18), and bottom end is equipped with contact pole (19), and middle part, which is equipped with, corresponds to third card The third for detaining (16) links up with (20)；

The ontology (2) further includes binding post (10), connecting terminal (11), square nut (12), lock card (13) and confluence piece (14)； Confluence piece (14) and connecting terminal (11) are fixed on binding post (10) by square nut (12) and lock card (13)；The confluence piece It (14) is tuning fork shape, the interdigital end of tuning fork and the contact pole (19) contact.

2. a kind of relay fuse box for motor vehicle harness according to claim 1, it is characterised in that: the remittance Flow (14) is two panels, and two panels confluence piece (14) fixing end bending forms a gate cavity, cavity in binding post (10) lower end Interior placement square nut (12) and lock card (13).

3. a kind of relay fuse box for motor vehicle harness according to claim 1 or 2, it is characterised in that: institute Stating square nut (12) is as broad as long cube, and spacing is greater than square nut in the gate cavity that two panels confluence piece (14) is formed (12) long side length and be less than square nut (12) upper surface catercorner length.

4. a kind of relay fuse box for motor vehicle harness according to claim 1, it is characterised in that: described Body (2) includes MICRO relay socket, MINI relay socket, MINI safety socket, molten safety socket and insurance are pulled out son and inserted slowly Seat, wherein MICRO relay socket 2, MINI relay socket 6,16 tunnel of MINI safety socket, molten safety socket is 6 slowly, Insurance pulls out sub-socket 1.

5. a kind of relay fuse box for motor vehicle harness according to claim 1, it is characterised in that: described Body (2) uses material for nylon PA66 material；Upper cover (1) and lower cover (3) use material for PP+TD20 material.